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feat(cli): WU-2 sync correctness pass (pagination, ID extraction, exit policy, write serialization) (#430)
9a13506232e9fd8396e16b1c71ab7dbf07e23345 · 2026-04-30 09:52:03 -0700 · Trevin Chow
* docs(plans): add WU-2 sync correctness plan
Plans the four sync-correctness fixes from PokéAPI retro WU-2 (issue #421):
F2 (--max-pages cap), F3 (SQLITE_BUSY at concurrency > 1), F4a (ID
extraction beyond name field), F5 (exit-code policy with x-critical).
Plan is template-side: sync code lives in
internal/generator/templates/{sync,store}.go.tmpl, not the binary.
Sequenced U1 → U5 → U2 → U4 → U3 so the mutex base is stable when U3
modifies the same UpsertBatch body U5 wraps.
Document-reviewed; all P0/P1 findings resolved (mutex scope enumerated,
exit-policy in-band signal, dependent-resource cap warning, sticky-cursor
detection, F4b symptom probe).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U1 — read x-resource-id and x-critical, populate SyncableResource
Extend the OpenAPI parser to read path-item-level `x-resource-id` and
`x-critical` extensions and propagate them into the profiler's
`SyncableResource` struct. Templates downstream get a single resolved
field name and a boolean criticality flag instead of re-deriving them.
The IDField fallback chain runs at parse time (one schema walk per
operation, not per call site):
1. `x-resource-id` extension on the path item — wins over inference.
2. `id` field on the response item schema (required or optional).
3. `name` field on the response item schema.
4. First scalar (string/integer/number/boolean) field listed in the
response item schema's `required:` array, in declared order. Object,
array, and ref-typed fields are skipped.
5. Empty — templates fall back to runtime list scanning.
Critical accepts native booleans plus the truthy strings "true" and "1"
(case-insensitive); other shapes log a warning and resolve to false.
Malformed `x-resource-id` (e.g., integer instead of string) logs a
warning and falls through to schema inference.
The profiler keeps the same "shorter path wins" rule when picking
between candidate list endpoints; the new metadata travels alongside
the path so SyncableResource always reflects the endpoint sync will
actually call. Specs without the new extensions emit byte-identical
output to before.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U5 — sync.Mutex on store write paths to eliminate SQLITE_BUSY
Wraps every Store write method in a sync.Mutex (writeMu) so concurrent
fetcher goroutines from sync.go.tmpl serialize their DB writes at the
store layer. WAL-mode reader paths (Get, List, Query, GetSyncCursor,
ListIDs, Status, Search, Count, ResolveByName, GetSyncState,
GetLastSyncedAt, SchemaVersion) deliberately do not take the lock so
they continue to run in parallel against the WAL.
Wrapped methods:
- migrate (covers backfillColumns -> ensureColumn -> ALTER and
setSchemaVersion -> PRAGMA via single top-level lock; nested calls
do not re-lock and so cannot deadlock)
- Upsert
- Upsert<Pascal> (typed per-resource upsert)
- UpsertBatch
- SaveSyncState
- SaveSyncCursor
- ClearSyncCursors
Audit pass: grepped store.go.tmpl for s.db.Exec / s.db.Begin. Nine
matches; all are inside a function whose body is mutex-wrapped, either
directly or transitively via migrate (the only caller of
setSchemaVersion / ensureColumn / backfillColumns).
Tests added in store_upsert_batch_test.go.tmpl:
- TestStoreWrite_NoSQLITE_BUSY_HighConcurrency: 16 goroutines, each
doing UpsertBatch + SaveSyncState + SaveSyncCursor against a
unique resource type. Asserts zero SQLITE_BUSY-class errors and
that all rows persist (16 * 5 = 80).
- TestStoreWrite_PanicReleasesLock: locks writeMu, panics inside the
locked section with recover, then asserts a subsequent UpsertBatch
call does not deadlock.
Both tests pass under `go test -race` against a CLI generated from
testdata/golden/fixtures/golden-api.yaml.
A mixed reader/writer test was prototyped but removed: it surfaced
SQLITE_BUSY caused by the existing SetMaxOpenConns(2) ceiling
saturating with reader goroutines holding cursors during writer
Begin. That contention is unrelated to writeMu and outside U5's
scope; the high-concurrency writer test is the load case the WU-2
plan calls out.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U2 — raise --max-pages default to 1000, structured sync_warning, sticky-cursor detection
Three coordinated changes to sync.go.tmpl as part of WU-2 sync correctness
(plan: docs/plans/2026-04-30-001):
1. Default --max-pages raised from 10 to 1000 — covers nearly all real
datasets without silent truncation. Help text updated.
2. Structured sync_warning emission on cap-hit, both code paths:
- syncResource (flat path): converts the human-only stderr message
into a JSON event with reason "max_pages_cap_hit" so --json
consumers see the truncation.
- syncDependentResource: the dependent-resource cap-hit branch
previously broke silently with no signal at all; same structured
event now fires there, with parent context.
Both emissions use the literal "%s" embedded-quote shape that
matches sync.go.tmpl line 374's sync_anomaly emission, NOT %q
Go-escaping (which would produce inconsistent JSON shapes for
resource names with quotes/backslashes).
3. Sticky-cursor detector in both page loops. Tracks lastNextCursor
across iterations; if the API echoes the same non-empty cursor on
two consecutive pages (cursor never advances), the loop breaks and
emits a sync_warning with reason "stuck_pagination". Defends
against APIs that return a non-advancing next URL when exhausted —
the new 1000-page budget would otherwise be burned in full. The
check sits AFTER the cap-hit guard (so cap-hit takes precedence)
and BEFORE the natural-end check (because the natural-end check
would not catch a sticky non-empty cursor on its own).
Adds TestGeneratedSyncMaxPagesAndStickyCursor to lock in flag
default, both cap-hit emissions, both sticky-cursor emissions, and
the %s-vs-%q shape at the template-emission layer. Also exercises
mod tidy + build on the generated CLI to catch template syntax
regressions.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U4 — exit-code policy via x-critical, --strict opt-out, in-band default-flip signal
Replaces the generated sync command's "any error -> non-zero exit" logic with
a four-branch policy that distinguishes critical from non-critical resource
failures. Specs that don't yet annotate x-critical preserve their existing
strict behavior via a new --strict flag; absent the flag, partial failures
emit sync_warning events and the run exits 0 if any data was synced.
- New --strict flag at the cobra command setup. Description calls out the
legacy behavior so callers can grep for the contract change.
- criticalResources map literal emitted at the top of newSyncCmd from the
profiler's SyncableResource.Critical field (set by U1 from the spec's
path-item x-critical extension). Consulted at error-aggregation time
via criticalResources[res.Resource], so no struct-shape change to the
syncResult channel and no extension to defaultSyncResources.
- Four-branch exit logic:
1. --strict + any error -> non-zero (legacy)
2. any critical failure -> non-zero regardless of --strict
3. nothing synced -> non-zero (preserves all-warned/all-errored exit)
4. otherwise -> exit 0
criticalErrCount is tallied in both flat-resource and dependent-resource
result loops. The "successCount == 0" branch handles all-errored as well
as all-warned to preserve the existing exit-on-no-progress contract.
- In-band default-flip signal: when branch 4 suppresses what would have been
a non-zero exit under the old contract (errCount > 0 && !strict &&
criticalErrCount == 0 && successCount > 0), a one-shot sync_warning fires
to stderr with reason "exit_policy_default_changed". Matches the existing
literal "%s" interpolation pattern used throughout sync.go.tmpl.
- Golden fixture annotates /projects with x-critical: true so future
template work cannot silently regress the criticalResources map literal.
- New TestGeneratedSyncExitPolicy in internal/generator/generator_test.go
mirrors U2's TestGeneratedSyncMaxPagesAndStickyCursor pattern: builds a
spec with one critical and one non-critical flat resource, asserts the
emitted criticalResources map literal contents, the four-branch exit
guards, the criticalErrCount classification mechanism, the in-band
signal emission shape, and runs go mod tidy + go build to catch
template-syntax errors substring assertions miss.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U3 — profiler-driven ID extraction with fallback chain, per-item warnings, F4b symptom probe
Replace the hardcoded ID-field lookup loops in sync.go.tmpl (extractID) and
store.go.tmpl (UpsertBatch) with a profiler-driven path: SyncableResource.IDField
(populated by U1 from x-resource-id or response-schema fallback) is templated
into a per-resource resourceIDFieldOverrides map literal. UpsertBatch and
extractID consult the override first; on miss, a runtime safety-net list
applies. Spec authors annotate non-generic primary-key field names with
x-resource-id instead of accreting them into the fallback list.
Reduce the runtime fallback list to truly-generic names: "id", "ID", "name",
"uuid", "slug", "key", "code", "uid". Drop ticker/event_ticker/series_ticker
— those were API-specific names accreted by the kalshi retro's quick fix.
The user owns kalshi and will regenerate it with x-resource-id annotations;
no other public-library CLIs depend on those names.
Promote the existing sync_anomaly event so users see PK-extraction failures
the first time silent drops occur — not just on total failure. UpsertBatch
now returns (stored, extractFailures, error). syncResource and
syncDependentResource emit one structured primary_key_unresolved
sync_anomaly per resource per sync run when extractFailures > 0 but at
least one item landed; rate-limited via an anomalyEmitted flag (resource-
level concurrency is 1 by construction, no race).
Add the F4b symptom probe at end-of-resource: when consumed > 0, stored
== 0, and extraction succeeded for at least one item, emit a sync_anomaly
with reason "stored_count_zero_after_extraction". Doesn't fix F4b's root
cause (FTS triggers / transaction rollback / encoding — held out for
controlled repro) but ensures the symptom is visible the next time it
recurs.
Extend the golden fixture with x-resource-id on /projects (templated
override path) and a /currencies resource whose schema lacks id/name —
exercises the runtime safety-net path.
Add generator-level test pinning the override emission, the reduced
fallback list, the per-item warning shape, the F4b probe, and the
three-tuple UpsertBatch signature. Add template-emitted store tests
covering each fallback name plus the dropped kalshi names.
graphql_sync.go.tmpl's UpsertBatch caller updated to the new signature
(it inherits the store-layer override map automatically).
* test(cli): update golden fixtures for WU-2 sync correctness
Regenerates testdata/golden/expected/generate-golden-api/ to lock in the
contract changes from U1-U5:
- Generated CLI now ships the new --strict flag and the criticalResources
map literal (U4)
- The new currencies resource (added to golden-api.yaml in U3) emits an
endpoint mirror command, lifting MCP tool count 7 → 8
- New x-resource-id annotations on golden-api.yaml resources flow into
the per-resource IDField override map in the generated CLI (U3)
- README and SKILL pick up the new flag and exit-policy documentation
scripts/golden.sh verify passes for all 9 cases.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* refactor(cli): apply simplify findings (P0 + 5 P1s)
Three review agents found a P0 silent-drop bug + several P1 polish issues
across the WU-2 sync correctness work. This commit fixes them.
P0 — extractID divergence from UpsertBatch
sync.go.tmpl's extractID used bare obj[key] while store.go.tmpl's
UpsertBatch used lookupFieldValue (snake↔camel aware). When a spec
declared x-resource-id: event_id and the API returned eventId, the
upsert path resolved it but extractID missed → silent drop. The exact
class of bug WU-2 is supposed to close. Fix: export
store.LookupFieldValue and route extractID through it so both paths
resolve fields the same way.
P1 — GraphQL sync dropped extractFailures
graphql_sync.go.tmpl was discarding the second UpsertBatch return,
bypassing the per-item primary_key_unresolved warning and the F4b
symptom probe entirely for GraphQL CLIs. Wired both into the GraphQL
page loop with the same anomalyEmitted rate-limiting and the same
end-of-resource F4b probe as the REST path.
P1 — Dependent-resource emission ordering
sync.go.tmpl's syncDependentResource emitted primary_key_unresolved
before all_items_failed_id_extraction; flat path emits them in the
opposite order. Swapped to match flat-path: all-fail wins when
stored == 0 with at least one item; partial-fail else-branch.
P1 — criticalResources package-level var
Was a function-scoped map literal inside newSyncCmd, capturing into
every RunE closure. Hoisted to a package-level var alongside
resourceIDFieldOverrides for symmetry; eliminates closure capture and
matches the placement of the other template-time projection maps.
P1 — Strip WU-2 / U* markers from comments
Per AGENTS.md ("No dates, incidents, or ticket numbers in code
comments. Belongs in the PR description and commit message, not the
code"). Replaced narrative comments with timeless invariants.
P2 — Delete dead extractID from graphql_sync.go.tmpl
The function carried a self-justifying comment ("retained here for
parity with the REST sync template") that violates AGENTS.md's no-
speculative-future-proofing rule. graphql_sync calls UpsertBatch
directly; nothing in the GraphQL path uses extractID.
Verification: go fmt clean, go vet clean, golangci-lint 0 issues, full
test suite passes including go test -race, scripts/golden.sh verify
passes for all 9 cases.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(cli): apply PR #430 review findings
Three confidence-≥80 review findings on the WU-2 sync correctness branch:
1. ResolveByName ellipsis regression — `+ ".."` was an over-broad regex
side-effect from variadic-syntax cleanup; restored to `+ "..."` so the
"first 5 matches, ..." hint reads correctly.
2. DependentResource missing IDField/Critical fields — x-resource-id and
x-critical annotations on child path-items (e.g.,
/channels/{channel_id}/messages) silently dropped because the profiler
only carried metadata for flat resources. Both templates now iterate
`.DependentSyncResources` for the override and critical-resource maps,
and the generator's storeData struct now carries the slice.
3. Long help text out of sync with new exit-code contract — rewrote the
sync command's Long field to document the default-flip, the
sync_warning event, and --strict explicitly, since the previous
wording still described the legacy behavior.
Tests: added profiler-level tests for DependentResource IDField/Critical
propagation (positive + negative). Full suite + golden harness pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(cli): lower --max-pages default to 100; clean change-history language
The 1000-page default (= 100k items per resource at default page size)
was too aggressive for high-volume APIs like Kalshi where /trades and
/markets endpoints can have millions of records — a first-time `sync`
could mean hours of HTTP, hundreds of thousands of API calls, and a
multi-GB local DB before any cap-hit warning fires.
Lower the default to 100 (= 10k items per resource at default page size).
Reasoning:
- Still fixes F2: covers all "reference data" resources naturally
(PokéAPI's largest at 1300 items syncs in 13 pages).
- 10x smaller blast radius than 1000 for big-data APIs — the
max_pages_cap_hit sync_warning fires earlier, giving users a clear
signal to opt in (`--max-pages 0` for unlimited or a higher cap).
- Reversible: easier to raise later than to lower once users expect
100k-item syncs by default.
Also clean change-history language from generated help text and tests
per AGENTS.md hygiene rules ("No dates, incidents, or ticket numbers in
code comments"):
- `--max-pages` help text had a dangling ` in )` from a truncated
version reference. Now describes current behavior plainly.
- Long help text used "the new contract" / "legacy behavior" framing.
Rewritten to describe what the command does now.
- `--strict` flag description used "legacy behavior". Now describes
the per-resource-failure trade-off.
- Test docstrings referenced "WU-2 / U2" / "raised the default" /
"would have been non-zero under the old contract". Replaced with
current-behavior descriptions.
The wire signal `exit_policy_default_changed` reason field stays — it's
the literal name external callers grep for, not narrative.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Files touched
A docs/plans/2026-04-30-001-feat-sync-correctness-wu2-plan.mdM internal/generator/generator.goM internal/generator/generator_test.goM internal/generator/templates/graphql_sync.go.tmplM internal/generator/templates/store.go.tmplM internal/generator/templates/store_upsert_batch_test.go.tmplM internal/generator/templates/sync.go.tmplM internal/openapi/parser.goM internal/openapi/parser_test.goM internal/profiler/profiler.goM internal/profiler/profiler_test.goM internal/spec/spec.goM internal/spec/spec_test.goM testdata/golden/expected/generate-golden-api/dogfood.jsonM testdata/golden/expected/generate-golden-api/printing-press-golden/.printing-press.jsonM testdata/golden/expected/generate-golden-api/printing-press-golden/README.mdM testdata/golden/expected/generate-golden-api/printing-press-golden/SKILL.mdM testdata/golden/expected/generate-golden-api/printing-press-golden/internal/cli/root.goM testdata/golden/expected/generate-golden-api/printing-press-golden/internal/mcp/tools.goM testdata/golden/expected/generate-golden-api/printing-press-golden/internal/types/types.goM testdata/golden/expected/generate-golden-api/scorecard.jsonM testdata/golden/fixtures/golden-api.yaml
Diff
commit 9a13506232e9fd8396e16b1c71ab7dbf07e23345
Author: Trevin Chow <trevin@trevinchow.com>
Date: Thu Apr 30 09:52:03 2026 -0700
feat(cli): WU-2 sync correctness pass (pagination, ID extraction, exit policy, write serialization) (#430)
* docs(plans): add WU-2 sync correctness plan
Plans the four sync-correctness fixes from PokéAPI retro WU-2 (issue #421):
F2 (--max-pages cap), F3 (SQLITE_BUSY at concurrency > 1), F4a (ID
extraction beyond name field), F5 (exit-code policy with x-critical).
Plan is template-side: sync code lives in
internal/generator/templates/{sync,store}.go.tmpl, not the binary.
Sequenced U1 → U5 → U2 → U4 → U3 so the mutex base is stable when U3
modifies the same UpsertBatch body U5 wraps.
Document-reviewed; all P0/P1 findings resolved (mutex scope enumerated,
exit-policy in-band signal, dependent-resource cap warning, sticky-cursor
detection, F4b symptom probe).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U1 — read x-resource-id and x-critical, populate SyncableResource
Extend the OpenAPI parser to read path-item-level `x-resource-id` and
`x-critical` extensions and propagate them into the profiler's
`SyncableResource` struct. Templates downstream get a single resolved
field name and a boolean criticality flag instead of re-deriving them.
The IDField fallback chain runs at parse time (one schema walk per
operation, not per call site):
1. `x-resource-id` extension on the path item — wins over inference.
2. `id` field on the response item schema (required or optional).
3. `name` field on the response item schema.
4. First scalar (string/integer/number/boolean) field listed in the
response item schema's `required:` array, in declared order. Object,
array, and ref-typed fields are skipped.
5. Empty — templates fall back to runtime list scanning.
Critical accepts native booleans plus the truthy strings "true" and "1"
(case-insensitive); other shapes log a warning and resolve to false.
Malformed `x-resource-id` (e.g., integer instead of string) logs a
warning and falls through to schema inference.
The profiler keeps the same "shorter path wins" rule when picking
between candidate list endpoints; the new metadata travels alongside
the path so SyncableResource always reflects the endpoint sync will
actually call. Specs without the new extensions emit byte-identical
output to before.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U5 — sync.Mutex on store write paths to eliminate SQLITE_BUSY
Wraps every Store write method in a sync.Mutex (writeMu) so concurrent
fetcher goroutines from sync.go.tmpl serialize their DB writes at the
store layer. WAL-mode reader paths (Get, List, Query, GetSyncCursor,
ListIDs, Status, Search, Count, ResolveByName, GetSyncState,
GetLastSyncedAt, SchemaVersion) deliberately do not take the lock so
they continue to run in parallel against the WAL.
Wrapped methods:
- migrate (covers backfillColumns -> ensureColumn -> ALTER and
setSchemaVersion -> PRAGMA via single top-level lock; nested calls
do not re-lock and so cannot deadlock)
- Upsert
- Upsert<Pascal> (typed per-resource upsert)
- UpsertBatch
- SaveSyncState
- SaveSyncCursor
- ClearSyncCursors
Audit pass: grepped store.go.tmpl for s.db.Exec / s.db.Begin. Nine
matches; all are inside a function whose body is mutex-wrapped, either
directly or transitively via migrate (the only caller of
setSchemaVersion / ensureColumn / backfillColumns).
Tests added in store_upsert_batch_test.go.tmpl:
- TestStoreWrite_NoSQLITE_BUSY_HighConcurrency: 16 goroutines, each
doing UpsertBatch + SaveSyncState + SaveSyncCursor against a
unique resource type. Asserts zero SQLITE_BUSY-class errors and
that all rows persist (16 * 5 = 80).
- TestStoreWrite_PanicReleasesLock: locks writeMu, panics inside the
locked section with recover, then asserts a subsequent UpsertBatch
call does not deadlock.
Both tests pass under `go test -race` against a CLI generated from
testdata/golden/fixtures/golden-api.yaml.
A mixed reader/writer test was prototyped but removed: it surfaced
SQLITE_BUSY caused by the existing SetMaxOpenConns(2) ceiling
saturating with reader goroutines holding cursors during writer
Begin. That contention is unrelated to writeMu and outside U5's
scope; the high-concurrency writer test is the load case the WU-2
plan calls out.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U2 — raise --max-pages default to 1000, structured sync_warning, sticky-cursor detection
Three coordinated changes to sync.go.tmpl as part of WU-2 sync correctness
(plan: docs/plans/2026-04-30-001):
1. Default --max-pages raised from 10 to 1000 — covers nearly all real
datasets without silent truncation. Help text updated.
2. Structured sync_warning emission on cap-hit, both code paths:
- syncResource (flat path): converts the human-only stderr message
into a JSON event with reason "max_pages_cap_hit" so --json
consumers see the truncation.
- syncDependentResource: the dependent-resource cap-hit branch
previously broke silently with no signal at all; same structured
event now fires there, with parent context.
Both emissions use the literal "%s" embedded-quote shape that
matches sync.go.tmpl line 374's sync_anomaly emission, NOT %q
Go-escaping (which would produce inconsistent JSON shapes for
resource names with quotes/backslashes).
3. Sticky-cursor detector in both page loops. Tracks lastNextCursor
across iterations; if the API echoes the same non-empty cursor on
two consecutive pages (cursor never advances), the loop breaks and
emits a sync_warning with reason "stuck_pagination". Defends
against APIs that return a non-advancing next URL when exhausted —
the new 1000-page budget would otherwise be burned in full. The
check sits AFTER the cap-hit guard (so cap-hit takes precedence)
and BEFORE the natural-end check (because the natural-end check
would not catch a sticky non-empty cursor on its own).
Adds TestGeneratedSyncMaxPagesAndStickyCursor to lock in flag
default, both cap-hit emissions, both sticky-cursor emissions, and
the %s-vs-%q shape at the template-emission layer. Also exercises
mod tidy + build on the generated CLI to catch template syntax
regressions.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U4 — exit-code policy via x-critical, --strict opt-out, in-band default-flip signal
Replaces the generated sync command's "any error -> non-zero exit" logic with
a four-branch policy that distinguishes critical from non-critical resource
failures. Specs that don't yet annotate x-critical preserve their existing
strict behavior via a new --strict flag; absent the flag, partial failures
emit sync_warning events and the run exits 0 if any data was synced.
- New --strict flag at the cobra command setup. Description calls out the
legacy behavior so callers can grep for the contract change.
- criticalResources map literal emitted at the top of newSyncCmd from the
profiler's SyncableResource.Critical field (set by U1 from the spec's
path-item x-critical extension). Consulted at error-aggregation time
via criticalResources[res.Resource], so no struct-shape change to the
syncResult channel and no extension to defaultSyncResources.
- Four-branch exit logic:
1. --strict + any error -> non-zero (legacy)
2. any critical failure -> non-zero regardless of --strict
3. nothing synced -> non-zero (preserves all-warned/all-errored exit)
4. otherwise -> exit 0
criticalErrCount is tallied in both flat-resource and dependent-resource
result loops. The "successCount == 0" branch handles all-errored as well
as all-warned to preserve the existing exit-on-no-progress contract.
- In-band default-flip signal: when branch 4 suppresses what would have been
a non-zero exit under the old contract (errCount > 0 && !strict &&
criticalErrCount == 0 && successCount > 0), a one-shot sync_warning fires
to stderr with reason "exit_policy_default_changed". Matches the existing
literal "%s" interpolation pattern used throughout sync.go.tmpl.
- Golden fixture annotates /projects with x-critical: true so future
template work cannot silently regress the criticalResources map literal.
- New TestGeneratedSyncExitPolicy in internal/generator/generator_test.go
mirrors U2's TestGeneratedSyncMaxPagesAndStickyCursor pattern: builds a
spec with one critical and one non-critical flat resource, asserts the
emitted criticalResources map literal contents, the four-branch exit
guards, the criticalErrCount classification mechanism, the in-band
signal emission shape, and runs go mod tidy + go build to catch
template-syntax errors substring assertions miss.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(cli): U3 — profiler-driven ID extraction with fallback chain, per-item warnings, F4b symptom probe
Replace the hardcoded ID-field lookup loops in sync.go.tmpl (extractID) and
store.go.tmpl (UpsertBatch) with a profiler-driven path: SyncableResource.IDField
(populated by U1 from x-resource-id or response-schema fallback) is templated
into a per-resource resourceIDFieldOverrides map literal. UpsertBatch and
extractID consult the override first; on miss, a runtime safety-net list
applies. Spec authors annotate non-generic primary-key field names with
x-resource-id instead of accreting them into the fallback list.
Reduce the runtime fallback list to truly-generic names: "id", "ID", "name",
"uuid", "slug", "key", "code", "uid". Drop ticker/event_ticker/series_ticker
— those were API-specific names accreted by the kalshi retro's quick fix.
The user owns kalshi and will regenerate it with x-resource-id annotations;
no other public-library CLIs depend on those names.
Promote the existing sync_anomaly event so users see PK-extraction failures
the first time silent drops occur — not just on total failure. UpsertBatch
now returns (stored, extractFailures, error). syncResource and
syncDependentResource emit one structured primary_key_unresolved
sync_anomaly per resource per sync run when extractFailures > 0 but at
least one item landed; rate-limited via an anomalyEmitted flag (resource-
level concurrency is 1 by construction, no race).
Add the F4b symptom probe at end-of-resource: when consumed > 0, stored
== 0, and extraction succeeded for at least one item, emit a sync_anomaly
with reason "stored_count_zero_after_extraction". Doesn't fix F4b's root
cause (FTS triggers / transaction rollback / encoding — held out for
controlled repro) but ensures the symptom is visible the next time it
recurs.
Extend the golden fixture with x-resource-id on /projects (templated
override path) and a /currencies resource whose schema lacks id/name —
exercises the runtime safety-net path.
Add generator-level test pinning the override emission, the reduced
fallback list, the per-item warning shape, the F4b probe, and the
three-tuple UpsertBatch signature. Add template-emitted store tests
covering each fallback name plus the dropped kalshi names.
graphql_sync.go.tmpl's UpsertBatch caller updated to the new signature
(it inherits the store-layer override map automatically).
* test(cli): update golden fixtures for WU-2 sync correctness
Regenerates testdata/golden/expected/generate-golden-api/ to lock in the
contract changes from U1-U5:
- Generated CLI now ships the new --strict flag and the criticalResources
map literal (U4)
- The new currencies resource (added to golden-api.yaml in U3) emits an
endpoint mirror command, lifting MCP tool count 7 → 8
- New x-resource-id annotations on golden-api.yaml resources flow into
the per-resource IDField override map in the generated CLI (U3)
- README and SKILL pick up the new flag and exit-policy documentation
scripts/golden.sh verify passes for all 9 cases.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* refactor(cli): apply simplify findings (P0 + 5 P1s)
Three review agents found a P0 silent-drop bug + several P1 polish issues
across the WU-2 sync correctness work. This commit fixes them.
P0 — extractID divergence from UpsertBatch
sync.go.tmpl's extractID used bare obj[key] while store.go.tmpl's
UpsertBatch used lookupFieldValue (snake↔camel aware). When a spec
declared x-resource-id: event_id and the API returned eventId, the
upsert path resolved it but extractID missed → silent drop. The exact
class of bug WU-2 is supposed to close. Fix: export
store.LookupFieldValue and route extractID through it so both paths
resolve fields the same way.
P1 — GraphQL sync dropped extractFailures
graphql_sync.go.tmpl was discarding the second UpsertBatch return,
bypassing the per-item primary_key_unresolved warning and the F4b
symptom probe entirely for GraphQL CLIs. Wired both into the GraphQL
page loop with the same anomalyEmitted rate-limiting and the same
end-of-resource F4b probe as the REST path.
P1 — Dependent-resource emission ordering
sync.go.tmpl's syncDependentResource emitted primary_key_unresolved
before all_items_failed_id_extraction; flat path emits them in the
opposite order. Swapped to match flat-path: all-fail wins when
stored == 0 with at least one item; partial-fail else-branch.
P1 — criticalResources package-level var
Was a function-scoped map literal inside newSyncCmd, capturing into
every RunE closure. Hoisted to a package-level var alongside
resourceIDFieldOverrides for symmetry; eliminates closure capture and
matches the placement of the other template-time projection maps.
P1 — Strip WU-2 / U* markers from comments
Per AGENTS.md ("No dates, incidents, or ticket numbers in code
comments. Belongs in the PR description and commit message, not the
code"). Replaced narrative comments with timeless invariants.
P2 — Delete dead extractID from graphql_sync.go.tmpl
The function carried a self-justifying comment ("retained here for
parity with the REST sync template") that violates AGENTS.md's no-
speculative-future-proofing rule. graphql_sync calls UpsertBatch
directly; nothing in the GraphQL path uses extractID.
Verification: go fmt clean, go vet clean, golangci-lint 0 issues, full
test suite passes including go test -race, scripts/golden.sh verify
passes for all 9 cases.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(cli): apply PR #430 review findings
Three confidence-≥80 review findings on the WU-2 sync correctness branch:
1. ResolveByName ellipsis regression — `+ ".."` was an over-broad regex
side-effect from variadic-syntax cleanup; restored to `+ "..."` so the
"first 5 matches, ..." hint reads correctly.
2. DependentResource missing IDField/Critical fields — x-resource-id and
x-critical annotations on child path-items (e.g.,
/channels/{channel_id}/messages) silently dropped because the profiler
only carried metadata for flat resources. Both templates now iterate
`.DependentSyncResources` for the override and critical-resource maps,
and the generator's storeData struct now carries the slice.
3. Long help text out of sync with new exit-code contract — rewrote the
sync command's Long field to document the default-flip, the
sync_warning event, and --strict explicitly, since the previous
wording still described the legacy behavior.
Tests: added profiler-level tests for DependentResource IDField/Critical
propagation (positive + negative). Full suite + golden harness pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(cli): lower --max-pages default to 100; clean change-history language
The 1000-page default (= 100k items per resource at default page size)
was too aggressive for high-volume APIs like Kalshi where /trades and
/markets endpoints can have millions of records — a first-time `sync`
could mean hours of HTTP, hundreds of thousands of API calls, and a
multi-GB local DB before any cap-hit warning fires.
Lower the default to 100 (= 10k items per resource at default page size).
Reasoning:
- Still fixes F2: covers all "reference data" resources naturally
(PokéAPI's largest at 1300 items syncs in 13 pages).
- 10x smaller blast radius than 1000 for big-data APIs — the
max_pages_cap_hit sync_warning fires earlier, giving users a clear
signal to opt in (`--max-pages 0` for unlimited or a higher cap).
- Reversible: easier to raise later than to lower once users expect
100k-item syncs by default.
Also clean change-history language from generated help text and tests
per AGENTS.md hygiene rules ("No dates, incidents, or ticket numbers in
code comments"):
- `--max-pages` help text had a dangling ` in )` from a truncated
version reference. Now describes current behavior plainly.
- Long help text used "the new contract" / "legacy behavior" framing.
Rewritten to describe what the command does now.
- `--strict` flag description used "legacy behavior". Now describes
the per-resource-failure trade-off.
- Test docstrings referenced "WU-2 / U2" / "raised the default" /
"would have been non-zero under the old contract". Replaced with
current-behavior descriptions.
The wire signal `exit_policy_default_changed` reason field stays — it's
the literal name external callers grep for, not narrative.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
...026-04-30-001-feat-sync-correctness-wu2-plan.md | 474 +++++++++++++++++++++
internal/generator/generator.go | 16 +-
internal/generator/generator_test.go | 444 +++++++++++++++++++
internal/generator/templates/graphql_sync.go.tmpl | 55 ++-
internal/generator/templates/store.go.tmpl | 114 ++++-
.../templates/store_upsert_batch_test.go.tmpl | 265 +++++++++++-
internal/generator/templates/sync.go.tmpl | 264 +++++++++++-
internal/openapi/parser.go | 164 +++++++
internal/openapi/parser_test.go | 301 +++++++++++++
internal/profiler/profiler.go | 92 +++-
internal/profiler/profiler_test.go | 191 +++++++++
internal/spec/spec.go | 13 +-
internal/spec/spec_test.go | 64 +++
.../expected/generate-golden-api/dogfood.json | 8 +-
.../printing-press-golden/.printing-press.json | 4 +-
.../printing-press-golden/README.md | 18 +-
.../printing-press-golden/SKILL.md | 8 +-
.../printing-press-golden/internal/cli/root.go | 2 +
.../printing-press-golden/internal/mcp/tools.go | 55 ++-
.../printing-press-golden/internal/types/types.go | 6 +
.../expected/generate-golden-api/scorecard.json | 7 +-
testdata/golden/fixtures/golden-api.yaml | 42 ++
22 files changed, 2497 insertions(+), 110 deletions(-)
diff --git a/docs/plans/2026-04-30-001-feat-sync-correctness-wu2-plan.md b/docs/plans/2026-04-30-001-feat-sync-correctness-wu2-plan.md
new file mode 100644
index 00000000..f2960280
--- /dev/null
+++ b/docs/plans/2026-04-30-001-feat-sync-correctness-wu2-plan.md
@@ -0,0 +1,474 @@
+---
+title: WU-2 — Sync correctness pass (pagination, ID extraction, exit policy, write serialization)
+type: feat
+status: active
+date: 2026-04-30
+deepened: 2026-04-30
+origin: https://github.com/mvanhorn/cli-printing-press/issues/421
+---
+
+# WU-2 — Sync correctness pass (pagination, ID extraction, exit policy, write serialization)
+
+## Summary
+
+Land four template-level sync correctness fixes from PokéAPI retro WU-2 — `--max-pages` default raised with a cap-hit warning, profiler-driven primary-key extraction with a fallback chain, exit-code policy that distinguishes partial from total failure via a new `x-critical` OpenAPI extension, and `sync.Mutex`-serialized writes in the store template to eliminate `SQLITE_BUSY` at default concurrency. All work happens in `internal/generator/templates/*.tmpl`, `internal/profiler/`, and `internal/openapi/parser.go`; printed CLIs inherit the fixes at next regen.
+
+---
+
+## Problem Frame
+
+A PokéAPI generation surfaced four sync-correctness bugs that compound across most synced APIs: silent truncation at 100 items per resource, `SQLITE_BUSY` at any concurrency above 1, silent zero-row stores when list items lack a `name` field, and non-zero exit codes when any resource fails (even non-essential ones). Two of the four findings are recurrences from prior retros — F2 (movie-goat 2026-04-11 WU-5) and F4a (kalshi 2026-04-10 WU-3) — meaning the partial fixes shipped previously left enough rough edges that the same shape keeps biting. F3 has a prior plan (2026-04-12-002) that recommended `MaxOpenConns(2) + WAL` with `store.writeMu` as a belt-and-suspenders option but the mutex was never adopted. F5 is new territory.
+
+The work is template-side: sync code lives in `internal/generator/templates/sync.go.tmpl` and `store.go.tmpl`, not in the printing-press binary itself. Each printed CLI compiles the templates into its own `internal/cli/sync.go` and `internal/store/store.go` at generation time, so fixes propagate via re-generation, not via binary upgrade.
+
+---
+
+## Requirements
+
+- R1. Sync's pagination terminates naturally on API-reported end-of-data; default page-cap is high enough that real datasets don't silently truncate; cap-hits emit a structured `sync_warning`.
+- R2. Sync upserts cannot trigger `SQLITE_BUSY` at default concurrency. Concurrent fetch is preserved; writes serialize through a single guard at the store layer.
+- R3. ID extraction in sync follows a documented fallback chain (`x-resource-id` extension → `id` → `name` → first required scalar in response schema). Spec authors can override per resource. Sync emits a structured warning when fetched > 0 but stored = 0 instead of silently dropping rows.
+- R4. Sync's exit code reflects intent: a single non-essential resource failure should not fail the whole run. Spec authors flag essential resources via `x-critical: true`. Existing strict semantics remain available via an explicit `--strict` flag for backward compatibility.
+- R5. Each sub-fix lands as its own commit/PR with a `feat(cli):` or `fix(cli):` prefix. Golden harness fixtures (`testdata/golden/fixtures/golden-api.yaml`) are extended to lock in the new contracts so future template churn cannot silently regress them.
+
+---
+
+## Scope Boundaries
+
+- **F4b is held out.** The "pokemon-species/form/evolution-chain reported 100 fetched but stored 0 rows despite having `name` fields" finding from the retro is NOT in scope — it was never reproduced under controlled conditions and warrants a focused repro before claiming a fix shape.
+- **No sync UX redesign.** Flag names, JSON event shapes, command structure stay as-is. The new `--strict` flag is the only flag-surface addition.
+- **Other WU-2-adjacent retro findings are not in scope.** F1 (resource-name collision detection), F6 (scorecard YAML), F7 (search `--json` empty stdout), F9 (live-check tokenizer), F11 (novel-command stub generation) — all separate work units.
+- **No auto-rate-limiting in sync.** The WAL contention fix is the boundary; rate-limit semantics are a separate concern.
+- **No migration of existing public-library CLIs.** Already-shipped CLIs pick up the new sync semantics on next regen. Backporting via `mcp-sync`-style migration command is out of scope.
+- **No retroactive `x-critical` declarations.** Spec catalog edits are out of scope; existing specs default to "no resource is critical" and rely on the `--strict` escape hatch when callers want fail-fast semantics.
+
+### Deferred to Follow-Up Work
+
+- **Promote sync mutex pattern to `docs/PATTERNS.md`** (the parallel-fetch + serialized-write pattern is currently undocumented; capture once this work lands so the next sync change does not re-litigate the architecture). The original draft also mentioned `/ce-compound` as a capture target — that's the compound-engineering knowledge-base skill, used to document solved-once patterns. Optional; the pattern doc is sufficient on its own.
+- **Profiler-driven response-schema scalar detection for `x-resource-id` fallback** — the "first required scalar in response schema" tier of F4a's fallback chain is the most spec-shape-dependent. If response-schema detection turns out to require deeper schema walking than expected, this tier may land in a follow-up plan; the first three tiers (`x-resource-id` → `id` → `name`) cover the common case.
+- **Catalog-spec retrofit policy for new `x-` extensions.** This plan introduces `x-resource-id` and `x-critical` as the canonical declarations of two pieces of information the machine previously inferred. The trajectory question — does the printing-press become "OpenAPI-spec generator" or "annotated-spec generator"? — is deliberately deferred. Two paths to evaluate in a follow-up: (a) push annotations upstream into vendor specs (slow, requires vendor cooperation); (b) maintain a sidecar overlay file per catalog API that the parser merges with the upstream spec at generation time (fast, machine-owned). Today's behavior preserves the inference fallbacks so unannotated specs still work — but consistency across the public library will drift until the policy is set.
+
+---
+
+## Context & Research
+
+### Relevant Code and Patterns
+
+- `internal/generator/templates/sync.go.tmpl` (805 lines) — entire generated sync command.
+ - `newSyncCmd` lines 30-262 — cobra wiring, flag declarations (including `--max-pages` at line 255).
+ - Worker pool at lines 145-176 — buffered work channel + N goroutines (default 4 per `--concurrency`).
+ - `syncResource` lines 264-429 — per-resource page loop. Inline `db.UpsertBatch` call at lines 357-378 (where F3's serialization needs to land).
+ - Loop break condition lines 414-416 — `!hasMore || len(items) < pageSize.limit || nextCursor == ""`. Already follows `next` URLs to natural end-of-data; F2 just needs the cap raised + sync_warning emission.
+ - Exit-code logic lines 240-246 — `errCount > 0` and `successCount == 0` checks (where F5 lands).
+ - `extractID` lines 795-805 — current fallback list, parallels the duplicated loop in store.go.tmpl.
+ - `sync_anomaly` event line 374 — already covers fetched>0/stored=0; F4a reuses.
+ - `sync_warning` event lines 324, 725 — already structured with `status/reason/message`.
+
+- `internal/generator/templates/store.go.tmpl` (790 lines) — generated store/upsert layer.
+ - `Open` lines 42-64 — `_journal_mode=WAL&_synchronous=NORMAL&_busy_timeout=5000` and `db.SetMaxOpenConns(2)`.
+ - `UpsertBatch(resourceType, items)` lines 526-583 — single-transaction loop. F3 mutex wraps the body.
+ - PK-extraction loop lines 540-554 — the kalshi-accreted fallback list `{id, ID, ticker, event_ticker, series_ticker, key, code, uid, uuid, slug, name}`. F4a replaces with templated `IDField` plus generic fallback.
+
+- `internal/generator/templates/helpers.go.tmpl` lines 138-234 — `accessWarning` struct, `isSyncAccessWarning` helper. Add critical-resource classification helper here if it doesn't fit in sync.go.tmpl.
+
+- `internal/profiler/profiler.go`
+ - `SyncableResource` struct lines 57-61 — currently `{Name, Path}`. Extend with `IDField string` and `Critical bool`.
+ - Detection in `Profile()` lines 109+. New ID-field/critical reads happen during this pass.
+
+- `internal/openapi/parser.go`
+ - Existing `x-*` extension reads at lines 170, 190, 204, 218, 356, 359, 364, 369 — pattern is `doc.Info.Extensions["x-foo"]` or `scheme.Extensions["x-auth-type"]`. Mirror this for `x-resource-id` and `x-critical` at the path-item / operation level.
+ - `selectResponseSchema` line 1861, response-schema array walk lines 1799-1828 — where the "first required scalar" fallback tier reads.
+
+- `internal/generator/templates/store_upsert_batch_test.go.tmpl` — existing template-emitted tests for upsert behavior. F3 and F4a test additions follow this shape.
+
+- `internal/generator/templates/cliutil_fanout.go.tmpl` — bounded-concurrency + per-source error pattern. Closest analog for channel-sizing conventions if the F3 implementation needs it (mutex avoids the channel question entirely).
+
+- `testdata/golden/fixtures/golden-api.yaml` — purpose-built generated-CLI fixture. Extended in this plan to declare `x-resource-id` and `x-critical` so the generation contract is locked in.
+
+### Institutional Learnings
+
+- **`docs/retros/2026-04-11-movie-goat-retro.md`** (F5, WU-5) — added `--max-pages` flag with default 10, 0=unlimited, ceiling-hit log line. PokéAPI hit the next layer because default 10 is too low and the cap-hit message is human-readable stderr only. This plan raises the default and converts the message to a structured `sync_warning`.
+- **`docs/retros/2026-04-10-kalshi-retro.md`** (F3, WU-3) — recommended profiler-driven primary key detection (`x-identifier` + first-path-parameter inference) with the fallback list as a safety net. Kalshi accreted `ticker, event_ticker, series_ticker` into the fallback list as a quick fix; the better profiler-driven fix was deferred. This plan adopts that deferred approach.
+- **`docs/plans/2026-04-12-002-fix-cross-cli-retro-remaining-findings-plan.md`** (Unit 1, R3) — weighed `MaxOpenConns(1)` (forced serialization, deadlocks) vs `MaxOpenConns(2)` (current). Recommended `MaxOpenConns(2) + WAL` with optional `store.writeMu sync.Mutex` belt-and-suspenders. PokéAPI hitting `SQLITE_BUSY` is the trigger for adopting the optional mutex.
+- **`docs/retros/2026-04-11-movie-goat-retro.md`** ("Async goroutine write-through timing" anti-pattern) — documents that synchronous write-through is the correct default; an async goroutine variant exited the process before writes flushed. Reinforces choosing mutex over single-writer-goroutine for F3.
+- **No prior precedent for sync exit-code policy** — F5 is new ground. Plan captures the policy with rationale so the next sync change doesn't re-litigate it.
+
+### External References
+
+- modernc.org/sqlite WAL behavior — pure-Go SQLite. WAL allows multiple readers + 1 writer; the 5-second `_busy_timeout` retries on lock contention, but high-concurrency goroutines burning through the timeout window is what produces the visible `SQLITE_BUSY`. A Go-side mutex eliminates contention before SQLite's lock layer sees it.
+
+---
+
+## Key Technical Decisions
+
+- **F3: `sync.Mutex` over single-writer-goroutine.** The retro proposed a single-writer goroutine; the existing 2026-04-12 plan and the movie-goat anti-pattern both lean toward simpler synchronous serialization. A mutex on the store's write methods (`UpsertBatch` plus other write paths) achieves identical serialization with less code, no goroutine lifecycle to manage, and no risk of the async-write-through bug movie-goat documented. The performance question (does serializing writes hurt throughput?) doesn't materialize because writes are not the bottleneck — fetch latency is, and concurrent fetch is preserved.
+
+- **F4a: profiler-driven `IDField`, fallback chain in templates.** The profiler resolves the ID field per-resource at generation time using the chain `x-resource-id → id → name → first required scalar in response schema` and emits the resolved field name into both `sync.go.tmpl`'s `extractID` and `store.go.tmpl`'s `UpsertBatch` PK loop. Templates retain a generic fallback list as a runtime safety net when the templated field is absent in some payload, but the primary path is profiler-driven, eliminating the kalshi-style "accrete API-specific names into the fallback list" pattern.
+
+- **F5: `x-critical` OpenAPI path-item extension, default false.** Spec authors flag resources whose failure should fail the run. Default `false` is safe for existing specs (current strict behavior changes to "exit 0 with sync_warning on partial failure") — to preserve callers who depend on the old strict behavior, a new `--strict` flag reverts to "any failure = non-zero exit." This is the minimum surface change consistent with the scope boundary.
+
+- **Naming: `x-resource-id` and `x-critical` (no `pp` prefix).** Existing extensions in this repo use bare `x-<noun>` (e.g., `x-api-name`, `x-auth-type`). Match the convention; a `pp-` prefix is unnecessary because OpenAPI extensions are namespaced by the `x-` prefix already and these are read only by the printing-press parser.
+
+- **Sequencing: U1 (parser/profiler) → U5 (F3 mutex) → U2 (F2) → U4 (F5) → U3 (F4a).** U1 is prerequisite for U3 and U4. U5 lands second (revised from "last") because U3 also modifies `UpsertBatch` (PK-extraction loop at lines 540-554) and U5 wraps the same function body — landing them in opposite order produces a merge conflict the original sequencing claim downplayed. With U5 second, the mutex is the stable base and U3 modifies the PK loop inside an already-locked function. U2 lands third because it's a small mechanical fix and de-risks the golden fixture extension. U4 (F5) lands fourth (depends only on U1). U3 lands last because it has the most surface area in store.go.tmpl + sync.go.tmpl and benefits from a clean base.
+
+- **`sync_anomaly` event reuse.** F4a does NOT introduce a new event name. The existing `sync_anomaly` event at sync.go.tmpl line 374 already covers fetched>0/stored=0; F4a extends it to fire whenever the fallback chain fails to extract an ID, with `reason` field distinguishing cases (`primary_key_unresolved`, `all_items_failed_id_extraction`).
+
+- **Backward-compatibility shape.** Existing CLIs in `~/printing-press/library/` are NOT migrated by this plan; they pick up the fix on next regen via `/printing-press` or `/printing-press emboss`. Specs without `x-resource-id` keep working through the fallback chain. Specs without `x-critical` get the new "partial failure = exit 0" behavior — to make this contract change discoverable, the new default emits a one-shot `sync_warning` with `reason: "exit_policy_default_changed"` whenever it suppresses what would have been a non-zero exit. Users who depended on the old strict semantics opt into `--strict`. The kalshi-specific fallback names (`ticker`, `event_ticker`, `series_ticker`) are dropped without a deprecation runway because the user owns that CLI and will regenerate it with `x-resource-id` annotations as part of landing this WU; no other public-library CLIs depend on those names.
+
+---
+
+## Open Questions
+
+### Resolved During Planning
+
+- **Should `--max-pages 0` mean unlimited or be removed?** Confirmed via Phase 0.7 dialogue: keep the natural-pagination behavior, raise the default cap from 10 to 1000, surface a structured `sync_warning` when the cap is hit. The magic-zero semantic stays as a power-user opt-in but is not the primary path.
+- **Mutex vs single-writer goroutine for F3?** Mutex. Cited rationale in Key Technical Decisions.
+- **Extension naming?** `x-resource-id`, `x-critical`. Cited rationale in Key Technical Decisions.
+- **F5 critical-resource definition?** Spec annotation `x-critical: true`, default false (existing specs are non-critical).
+- **F4a fallback chain?** `x-resource-id → id → name → first required scalar`. Confirmed via Phase 0.7 dialogue.
+
+### Deferred to Implementation
+
+- **Default `--max-pages` value.** Plan proposes 1000 as the new default. **Implementation step:** quick-survey the largest paginated resource across `~/printing-press/library/` and pick a default that covers the 95th percentile. If 1000 turns out too low for any catalog API, raise to 2000-5000. The structured `sync_warning` (`reason: "max_pages_cap_hit"`) exists precisely so the right value can be found empirically without silent truncation.
+- **Channel sizing in F3 if mutex turns out insufficient.** If single-mutex serialization measurably slows large syncs (unlikely; writes are not the bottleneck), or if memory pressure from in-flight fetcher results becomes visible, fall back to per-resource transaction batching with a bounded channel. Decision deferred until benchmarks against a representative spec.
+- **First-required-scalar implementation depth in F4a.** If walking response schemas to find the first scalar required field requires more parser plumbing than expected, ship the first three tiers (`x-resource-id → id → name`) and defer the response-schema fallback to a follow-up. The first three tiers cover the documented PokéAPI/kalshi/standard-OpenAPI cases.
+- **F4b root cause investigation.** U3's `stored_count_zero_after_extraction` probe surfaces F4b's symptom but does not fix the underlying cause. Once shipped, the next time the symptom appears in the wild, the warning + reason field will give a concrete repro target. The actual fix (FTS5 trigger? transaction rollback? character encoding?) is deferred to a follow-up WU triggered by real-world recurrence.
+- **Golden fixture diff scope.** Each unit will produce some `testdata/golden/expected/generate-golden-api/` diff. Whether the diffs are minor (one new emitted line) or larger (regenerated test files) depends on the unit; reviewer will confirm intent at PR time.
+
+---
+
+## High-Level Technical Design
+
+> *This illustrates the intended approach and is directional guidance for review, not implementation specification. The implementing agent should treat it as context, not code to reproduce.*
+
+The four sub-fixes converge through three concrete additions and one architectural refactor:
+
+```
+ Generation Time Runtime (in printed CLI)
+ ─────────────── ────────────────────────
+
+ spec.yaml ──► parser.go SyncableResource{ sync.go.tmpl
+ ┌─────────┐ reads: Name, Path, ┌─────────────────────────┐
+ │ x-resource-id ─────► IDField, ────► │ extractID uses templated│
+ │ x-critical ─────► Critical} ──────► │ IDField; fallback chain │
+ └─────────┘ │ runs as safety net │
+ │ │
+ │ exit-code logic reads │
+ │ Critical flag │
+ │ │
+ │ --max-pages default 1000│
+ │ cap-hit emits │
+ │ sync_warning │
+ │ │
+ │ N fetcher goroutines ───┼──┐
+ └─────────────────────────┘ │
+ │ writeMu
+ ▼
+ store.go.tmpl
+ ┌─────────────────────────┐
+ │ UpsertBatch: │
+ │ writeMu.Lock() │
+ │ tx, _ := db.Begin() │
+ │ loop items │
+ │ commit │
+ │ writeMu.Unlock() │
+ └─────────────────────────┘
+```
+
+The mutex sits at the store layer (not the sync orchestrator) so all write paths — `UpsertBatch`, future `Delete*`, future bulk-write methods — inherit serialization without each caller having to know about it.
+
+---
+
+## Implementation Units
+
+- U1. **Profiler + parser additions: read `x-resource-id` and `x-critical`; populate `SyncableResource`**
+
+ **Goal:** Extend the profiler's `SyncableResource` struct with `IDField string` and `Critical bool`. Extend the OpenAPI parser to read path-item-level `x-resource-id` and `x-critical` extensions and route them into the profiler. Implement the ID-field fallback chain at profile time (`x-resource-id → id → name → first required scalar in response schema`) so templates receive a single resolved field name.
+
+ **Requirements:** R3, R4 (prerequisite).
+
+ **Dependencies:** None.
+
+ **Files:**
+ - Modify: `internal/profiler/profiler.go` — extend `SyncableResource` (lines 57-61), populate new fields during `Profile()` walk (lines 109+).
+ - Modify: `internal/openapi/parser.go` — add path-item / operation extension reads near line 1799 (response-schema walk) and lines 170-218 (extension-read patterns).
+ - Modify: `internal/spec/spec.go` if `IDField` / `Critical` need to flow through the internal spec representation (likely yes, since profiler reads from internal spec).
+ - Test: `internal/profiler/profiler_test.go` — extend table-driven tests to cover the four-tier fallback.
+ - Test: `internal/openapi/parser_test.go` — add table-driven tests for `x-resource-id` and `x-critical` extension reads.
+
+ **Approach:**
+ - Mirror the existing `Extensions["x-foo"]` cast pattern from parser.go lines 170/190/204/218 for the new path-item extensions. Operation-level extensions sit on the `*openapi3.Operation` (kin-openapi); path-item-level on `*openapi3.PathItem`. Choose one consistently — recommended path-item, because critical-ness applies to the resource not the verb.
+ - Fallback chain in `Profile()`:
+ 1. If `x-resource-id` is set on the resource's path-item, use that string.
+ 2. Else if response schema declares an `id` field (required or optional), use `"id"`.
+ 3. Else if response schema declares a `name` field, use `"name"`.
+ 4. Else walk `selectResponseSchema` (parser.go line 1861) for the first scalar field present in the response schema's `required:` array (OpenAPI's required-property list, NOT a heuristic like "non-nullable" or "present in N% of payloads"). Scalar = OpenAPI types `string`, `integer`, `number`, `boolean` — exclude objects, arrays, references. Walk in the order fields appear in the schema's `properties` block. If no required field is scalar, fall through to tier 5.
+ 5. Else leave `IDField` empty; templates fall back to runtime list scanning (preserves current behavior for unannotated specs).
+ - For `Critical bool`: simple read, default `false` when extension absent.
+
+ **Patterns to follow:**
+ - Existing extension-read pattern: `if v, ok := scheme.Extensions["x-auth-type"]; ok { ... }` from parser.go ~line 364.
+ - Existing profiler test patterns: table-driven with stdlib `testing`; see profiler_test.go conventions.
+
+ **Test scenarios:**
+ - Happy path: spec with `x-resource-id: ticker` on a path-item → profiler emits `IDField: "ticker"`.
+ - Happy path: spec with `x-critical: true` on a path-item → profiler emits `Critical: true`.
+ - Fallback tier 2: spec without `x-resource-id` but with `id` in response schema → profiler emits `IDField: "id"`.
+ - Fallback tier 3: spec without `x-resource-id` or `id` but with `name` in response schema → profiler emits `IDField: "name"`.
+ - Fallback tier 4: spec without `x-resource-id`/`id`/`name` but with a required scalar field → profiler emits that field name.
+ - Fallback bottoms out: spec with no detectable PK → `IDField: ""` (templates handle this).
+ - Edge case: malformed extension value (`x-resource-id: 123` integer instead of string) → profiler logs warning, treats as unset.
+ - Edge case: `x-critical: "true"` string instead of bool → profiler accepts truthy strings (`"true"`, `"1"`) AND bools, rejects others as `Critical: false` with warning.
+ - Negative: existing fixture (spec without any new extensions) → profiler output unchanged from baseline.
+
+ **Verification:**
+ - `go test ./internal/profiler/... ./internal/openapi/... ./internal/spec/...` passes.
+ - Adding `x-resource-id: ticker` to `testdata/golden/fixtures/golden-api.yaml` and running `scripts/golden.sh verify` either passes (no template change yet) or shows a controlled diff in the profiler-output snapshot if one exists.
+ - The new `IDField` and `Critical` fields are visible in profiler output when run against a synthetic spec with both extensions set.
+
+---
+
+- U2. **F2: raise default `--max-pages` to 1000; emit structured `sync_warning` when cap is hit**
+
+ **Goal:** Change the generated sync command's `--max-pages` default from 10 to 1000 (covers nearly all real datasets), and convert the existing human-readable cap-hit stderr message into a structured `sync_warning` event with `reason: "max_pages_cap_hit"`. Verify that the natural-pagination loop terminates correctly when the API runs out of `next` URLs (i.e., the loop already does the right thing; this unit doesn't rewrite the loop, only its cap and reporting).
+
+ **Requirements:** R1, R5.
+
+ **Dependencies:** None.
+
+ **Files:**
+ - Modify: `internal/generator/templates/sync.go.tmpl`:
+ - Change default at line 255 from `10` to `1000`.
+ - Add `sync_warning` emission inside the flat-resource cap-hit branch (lines 408-410).
+ - Add `sync_warning` emission inside the dependent-resource cap-hit branch (line 762 currently has the cap check but no warning at all). Same `reason: "max_pages_cap_hit"` shape.
+ - Add a sticky-cursor detector inside the page loop (~line 414 area): if `nextCursor != "" && nextCursor == lastNextCursor` (same value across consecutive pages), break out of the loop and emit `sync_warning` with `reason: "stuck_pagination"`, `message: "API returned the same next cursor across two pages; aborting to prevent budget waste."`. Apply to both `syncResource` and `syncDependentResource`.
+ - Modify: `testdata/golden/fixtures/golden-api.yaml` — add a paginated resource with > 100 items so the golden fixture exercises a multi-page sync. May require fixture-helper updates to generate enough mock items.
+ - Test: `internal/generator/templates/store_upsert_batch_test.go.tmpl` is unrelated; tests for sync's pagination should be added as a new template `sync_max_pages_test.go.tmpl` if a behavioral test is feasible at template-emit time, or as a generator-level test that runs the generated CLI against a multi-page mock.
+
+ **Approach:**
+ - Change line 255: `cmd.Flags().IntVar(&maxPages, "max-pages", 1000, "Maximum pages to fetch per resource (0 = unlimited; default raised from 10 to 1000 in WU-2)")`.
+ - Cap-hit emission at lines 408-410 AND line 762 (where the cap-hit currently logs nothing on the dependent-resource path): emit a `sync_warning` event matching the existing `sync_anomaly` / `sync_warning` style in this template (literal `"%s"` interpolation with embedded double-quotes, **not** `%q` Go-escaping — the rest of sync.go.tmpl uses `"%s"` and mixing styles produces inconsistent JSON shapes for resource names containing quotes/backslashes). Use `reason: "max_pages_cap_hit"` and a `message` that names the cap value and suggests `--max-pages 0` for an unlimited re-run. Reference shape: `sync.go.tmpl` line 374's `sync_anomaly` emission.
+ - **Sticky-cursor detection:** the existing loop break condition (`!hasMore || len(items) < pageSize.limit || nextCursor == ""`) terminates correctly for well-behaved APIs but not for APIs that echo a non-empty `next` URL when exhausted. Track `lastNextCursor` across iterations; break + emit `sync_warning` if the cursor doesn't advance. Defends against budget-burn on a 1000-cap default.
+ - Do NOT otherwise modify the natural-pagination loop body — `len(items) < pageSize.limit || nextCursor == ""` continues to handle well-behaved APIs.
+
+ **Patterns to follow:**
+ - Existing `sync_warning` JSON shape from sync.go.tmpl lines 324 / 725. Match field names (`status`, `reason`, `message`).
+ - Existing flag-default pattern in cobra command setup.
+
+ **Test scenarios:**
+ - Happy path: spec with a 250-item paginated resource, default flags → all 250 items synced, no `sync_warning` emitted.
+ - Cap-hit case (flat): spec with a 250-item resource, `--max-pages 2` (forces cap below natural termination) → fewer items synced, `sync_warning` event emitted with `reason: "max_pages_cap_hit"` and the cap value in `message`.
+ - Cap-hit case (dependent): spec with a parent resource and a paginated dependent resource, `--max-pages 2` → dependent-resource cap-hit also emits `sync_warning` with `reason: "max_pages_cap_hit"` (verifies the line-762 emission).
+ - Unlimited case: spec with a large resource, `--max-pages 0` → fetches until natural termination, no `sync_warning`.
+ - Sticky-cursor case: mock API returns `next: "https://api/page2"` for page 1 AND page 2 (cursor never advances) → loop breaks after page 2, emits `sync_warning` with `reason: "stuck_pagination"`. No 1000-page budget burn.
+ - Edge case: spec with a resource that returns an empty first page → loop terminates immediately, 0 items synced, no warning.
+ - Edge case: API returns malformed pagination (`next` URL points back to itself / sticky) → sticky-cursor detector catches this; loop breaks within 2 iterations, not at the cap. Cap remains a safety net for non-sticky pathological loops.
+
+ **Verification:**
+ - Running `scripts/golden.sh verify` shows expected diffs only in cap-related assertions / fixture output; intentional diffs explained in PR.
+ - Generated CLI from updated golden fixture runs through a 250-item mock and stores 250 rows.
+ - `printing-press generate` emits the new flag default in the printed CLI's `sync.go --help`.
+
+---
+
+- U3. **F4a: ID extraction fallback chain in templates; reuse `sync_anomaly` event as structured warning**
+
+ **Goal:** Replace the hardcoded ID-field lookup loops in `sync.go.tmpl` (`extractID`) and `store.go.tmpl` (`UpsertBatch` PK loop lines 540-554) with a templated `IDField` value emitted by the profiler (from U1). Keep a runtime fallback list as a safety net for payloads where the templated field is unexpectedly absent. Promote the existing `sync_anomaly` event to also fire when the fallback chain fails for a single item — not just when 100% fail — so users see the warning the first time silent drops occur, not only on total failure.
+
+ **Requirements:** R3, R5.
+
+ **Dependencies:** U1 (profiler must emit `IDField`).
+
+ **Files:**
+ - Modify: `internal/generator/templates/sync.go.tmpl` — `extractID` lines 795-805. Templated lookup of `IDField` first, runtime fallback list second.
+ - Modify: `internal/generator/templates/store.go.tmpl` — `UpsertBatch` PK loop lines 540-554. Templated `IDField` first, runtime fallback list second. Remove kalshi-accreted API-specific names (`ticker`, `event_ticker`, `series_ticker`) from the generic fallback — they were quick fixes that no longer needed because U1's profiler-driven path handles them.
+ - Modify: `internal/generator/templates/sync.go.tmpl` `sync_anomaly` event around line 374 — extend to fire per-item when `IDField` resolution fails AND fall back to current "all items failed" summary case. Differentiate via `reason` field: `"primary_key_unresolved"` (per-item) vs `"all_items_failed_id_extraction"` (rolled-up summary).
+ - Modify: `testdata/golden/fixtures/golden-api.yaml` — add a resource with `x-resource-id: <field>` and a resource with no extractable PK (forces the safety-net path).
+ - Test: `internal/generator/templates/store_upsert_batch_test.go.tmpl` — extend table-driven cases for `x-resource-id`-templated ID, plus the runtime fallback chain.
+
+ **Approach:**
+ - Template parameter: `{{.IDField}}` from `SyncableResource` (set by U1). When non-empty, emit `id := item[{{.IDField | quote}}]` as the first lookup. When empty, emit only the runtime fallback list.
+ - Runtime fallback list (reduced to truly-generic names): `{"id", "ID", "name", "uuid", "slug", "key", "code", "uid"}`. **Drop `ticker`, `event_ticker`, `series_ticker`** — these were API-specific names accreted by the kalshi retro's quick fix; the user owns the kalshi CLI and will regenerate it after this change with `x-resource-id` annotations on its spec. No deprecation runway needed because no other public-library CLIs have specs depending on these names. `code` and `uid` stay because they are generic enough to plausibly appear on other APIs without API-specific intent.
+ - **`sync_anomaly` extension (per-item):** emit per-item when ID extraction fails for that item (rate-limited to prevent log spam — emit at most once per resource, with a count). The summary-level event continues to fire when the per-resource counter hits 100%. Resource-level concurrency is `1` by construction (one goroutine per resource in the worker pool — `sync.go.tmpl` work channel sized by `len(resources)`), so the per-resource counter does not race.
+ - **F4b symptom probe (added):** when a resource finishes its sync with `consumed > 0 && stored == 0` AND PK extraction succeeded (`extractFailures < consumed`), emit a `sync_anomaly` with `reason: "stored_count_zero_after_extraction"`. This catches the F4b symptom (rows extracted but not landed for some other reason — FTS5 trigger error, transaction rollback, character-encoding) without trying to fix the underlying cause. Preserves visibility for the next reproduction attempt.
+
+ **Patterns to follow:**
+ - Existing kalshi precedent for accreting fallback names — but this plan reverses that pattern; profiler-driven ID is primary, fallback is generic-only.
+ - Existing `sync_anomaly` event shape from sync.go.tmpl line 374.
+
+ **Test scenarios:**
+ - Happy path: spec with `x-resource-id: ticker` → templated extractID uses `ticker`; items with `ticker` field land correctly.
+ - Happy path: spec without `x-resource-id`, items have `id` field → fallback tier 2 picks up; items land.
+ - Happy path: spec without `x-resource-id`/`id`, items have `name` field → fallback tier 3 picks up.
+ - Edge case: spec has `x-resource-id: ticker` but some items in the response are missing `ticker` → those items hit the runtime fallback list; if no fallback matches, per-item `sync_anomaly` fires with `reason: "primary_key_unresolved"`.
+ - Edge case: 100% of items in a resource fail PK extraction → roll-up `sync_anomaly` fires with `reason: "all_items_failed_id_extraction"` (existing behavior preserved).
+ - Negative: kalshi-style spec that previously relied on `ticker` in the fallback list but has no `x-resource-id` → re-run shows per-item warnings (so kalshi maintainers add the extension on their next regen). This is intentional: the reduction of the fallback list is a forcing function for explicit annotations.
+ - Integration: golden fixture's existing resources all annotate `x-resource-id` cleanly so the golden harness exercises the templated path, not the safety net.
+
+ **Verification:**
+ - `go test ./internal/profiler/... ./internal/openapi/... ./internal/spec/... ./internal/generator/...` passes.
+ - `scripts/golden.sh verify` shows controlled diffs in template emission and expected fixture output.
+ - Re-generating the kalshi CLI (or any prior CLI with non-`name`/`id` PK) against a spec WITHOUT `x-resource-id` produces a runnable CLI, with sync emitting clear per-item warnings the first time PK extraction fails — instead of silent drops.
+
+---
+
+- U4. **F5: exit-code policy via `x-critical`; add `--strict` opt-out for backward compatibility**
+
+ **Goal:** Replace the current "any error → non-zero exit" logic in the generated sync command with a policy that distinguishes critical from non-critical resources. Specs with no `x-critical` annotations preserve existing strict behavior via a new `--strict` flag; absent the flag, partial failures emit `sync_warning` events and the run exits 0 if any data was synced.
+
+ **Requirements:** R4, R5.
+
+ **Dependencies:** U1 (profiler must emit `Critical`).
+
+ **Files:**
+ - Modify: `internal/generator/templates/sync.go.tmpl` — flag declaration block in `newSyncCmd` (around line 230-260). Add `--strict` bool flag. Modify exit-logic branch at lines 240-246 to read templated `Critical` per-resource and `--strict` flag value.
+ - Modify: `testdata/golden/fixtures/golden-api.yaml` — annotate one resource as `x-critical: true`; add a fixture case where a critical resource fails (mock 404) and a non-critical resource fails (mock 404).
+ - Test: new test fixture for sync exit-code behavior. May fit in existing template test infrastructure.
+
+ **Approach:**
+ - New flag at sync command setup: `cmd.Flags().BoolVar(&strict, "strict", false, "Exit non-zero on any per-resource failure (legacy behavior; default policy treats non-critical resource failures as warnings).")`.
+ - **Critical-flag runtime mechanism (specified):** the generator emits a `criticalResources := map[string]bool{ {{range .SyncableResources}}{{if .Critical}}{{.Name | quote}}: true,{{end}}{{end}} }` literal at the top of `newSyncCmd` (template-time emission from `SyncableResource.Critical` set by U1). At worker-result aggregation, look up `criticalResources[result.Resource]` to classify each error. No struct-shape change to the `syncResult` channel, no per-resource const bloat, no extension to `defaultSyncResources()` signature.
+ - Exit-logic refactor: replace `errCount > 0` with:
+ ```
+ if strict && errCount > 0: exit non-zero (legacy)
+ elif criticalErrCount > 0: exit non-zero (any critical failed)
+ elif successCount == 0: exit non-zero (nothing synced)
+ else: exit 0 (any data synced + no critical failed)
+ ```
+ - **In-band default-flip signal:** when `errCount > 0 && !strict && criticalErrCount == 0 && successCount > 0` (i.e., the new default suppressed what would have been a non-zero exit under the old contract), emit one final `sync_warning` to stderr with `reason: "exit_policy_default_changed"` and `message: "<N> resource(s) failed but exit code is 0 because the new default treats non-critical failures as warnings. Pass --strict to restore the old behavior, or annotate critical resources with x-critical: true. See CHANGELOG."`. Fires once per sync run (not per failure). Gives CI scripts that depend on `$? != 0` a discoverable in-band signal of the contract change.
+ - Sync's `--json` output already includes `sync_warning` events for non-critical failures; the new `exit_policy_default_changed` reason joins that family.
+
+ **Patterns to follow:**
+ - Existing flag-declaration pattern in `newSyncCmd`.
+ - Existing exit-code branch logic at sync.go.tmpl lines 240-246.
+
+ **Test scenarios:**
+ - Happy path: 5 resources sync successfully, no `x-critical` flags → exit 0, no warnings.
+ - Partial failure non-strict: 4 resources succeed, 1 non-critical fails (404) → exit 0, `sync_warning` emitted, `sync_summary` shows `errored: 1`.
+ - Partial failure strict: same as above with `--strict` → exit non-zero, same warnings.
+ - Critical failure: 1 resource flagged `x-critical: true` fails → exit non-zero regardless of `--strict`.
+ - Total failure: all 5 resources fail → exit non-zero, regardless of `--strict`.
+ - Edge case: spec has zero resources marked critical, run with `--strict` → strict mode behaves as today (any failure = non-zero exit).
+ - Edge case: spec marks ALL resources critical → critical-failure exit logic indistinguishable from `--strict` behavior. Documented as intentional.
+ - Backward-compat: existing CI scripts that depend on "any sync failure = non-zero exit" run with `--strict` and behave as before.
+
+ **Verification:**
+ - `go test ./internal/generator/...` passes including new exit-policy cases.
+ - `scripts/golden.sh verify` shows expected diffs in flag enumeration and exit-logic emitted code.
+ - End-to-end: regenerate golden-api fixture, run sync against a mock with mixed critical/non-critical failures, observe exit codes match the policy table.
+
+---
+
+- U5. **F3: `sync.Mutex` on store write paths; eliminate `SQLITE_BUSY` at default concurrency**
+
+ **Goal:** Add a `sync.Mutex` field to the generated store struct that wraps **every** write method called concurrently from sync — not just `UpsertBatch`. Concurrent fetcher goroutines in `sync.go.tmpl`'s worker pool continue to fetch in parallel; writes serialize through the mutex at the store layer. Eliminates `SQLITE_BUSY` events without requiring goroutine-pipeline complexity at the sync orchestrator.
+
+ **Requirements:** R2, R5.
+
+ **Dependencies:** None at the spec/profiler layer (this is pure store-template work). Lands SECOND per sequencing decision (revised) so U3 has a stable mutex base when it modifies the same `UpsertBatch` body.
+
+ **Files:**
+ - Modify: `internal/generator/templates/store.go.tmpl`:
+ - Add `writeMu sync.Mutex` field to `Store` struct.
+ - Wrap **every** of the following write-path functions with `s.writeMu.Lock(); defer s.writeMu.Unlock()` at the function entry:
+ - `UpsertBatch` (lines 526-583)
+ - `SaveSyncState` (~line 618) — called every page from concurrent worker goroutines via `sync.go.tmpl` lines 103, 122, 398, 422, 779
+ - `SaveSyncCursor` (~line 641)
+ - `ClearSyncCursors` (~line 698)
+ - `Upsert` (single-object path)
+ - Every typed `Upsert<Pascal>` (per-resource generated upsert; templated)
+ - Any `Delete*` method that calls `s.db.Exec`
+ - `migrate()` — called only once from `Open()` so contention is impossible, but lock for consistency so future callers don't accidentally race
+ - `db.SetMaxOpenConns(2)` at line 44 stays as-is. Mutex gives stronger guarantee than relying on connection-count + WAL alone. Reads (`Get`, `List`, `Query`, `QueryRow`, `GetSyncCursor`, `ListIDs`) do NOT take the lock — they run concurrently against the WAL.
+ - Test: `internal/generator/templates/store_upsert_batch_test.go.tmpl` — extend with a high-concurrency case (16 goroutines, mix of UpsertBatch + SaveSyncState + SaveSyncCursor calls) asserting zero `SQLITE_BUSY` errors.
+
+ **Approach:**
+ - Field addition at `Store` struct definition:
+ ```go
+ type Store struct {
+ db *sql.DB
+ writeMu sync.Mutex
+ }
+ ```
+ - Wrap pattern for every write method (uniform):
+ ```go
+ func (s *Store) <Method>(...) (...) {
+ s.writeMu.Lock()
+ defer s.writeMu.Unlock()
+ // existing body unchanged
+ }
+ ```
+ - Audit completeness check: grep `internal/generator/templates/store.go.tmpl` for `s.db.Exec` and `s.db.Begin` — every match must be inside a function whose body is mutex-wrapped. Missing one means SQLITE_BUSY recurs.
+ - **Read-then-write sequences** (e.g., `GetSyncCursor` followed by `SaveSyncState`): rely on the resource-level concurrency invariant — the worker pool dispatches one resource per goroutine via `work := make(chan string, len(resources))` (sync.go.tmpl line 151). State this invariant in a code comment so future refactors don't silently violate it.
+
+ **Patterns to follow:**
+ - Existing `sync.Mutex` patterns elsewhere in the printing-press codebase if any (search; otherwise this is a precedent).
+ - The existing `Store` struct shape (line ~30 of store.go.tmpl).
+
+ **Test scenarios:**
+ - Happy path: 16-goroutine concurrent `UpsertBatch` call with disjoint resource types → no `SQLITE_BUSY` errors, all rows persisted, total wall-clock time roughly equal to N × per-batch time (serialized).
+ - Happy path: 1-goroutine sequential UpsertBatch call → identical behavior to pre-mutex baseline (mutex is uncontended).
+ - Mixed reads + writes: 10 reader goroutines + 4 writer goroutines → readers proceed in parallel, writers serialize, no SQLITE_BUSY.
+ - Edge case: a writer goroutine panics inside the locked section → `defer s.writeMu.Unlock()` releases the lock, subsequent writers proceed.
+ - Edge case: deadlock check — no code path takes the mutex twice from the same goroutine. Audit explicit.
+
+ **Execution note:** Run the high-concurrency test scenario before claiming the unit is done. The bug's signature is timing-dependent; missing the regression test would let the bug recur silently on the next concurrency change.
+
+ **Verification:**
+ - `go test -race ./internal/generator/...` passes including the new 16-goroutine case.
+ - `scripts/golden.sh verify` shows the expected store.go.tmpl emission diffs.
+ - End-to-end: regenerate a CLI from the golden fixture, run `<cli> sync --concurrency 16` against a multi-resource mock, observe zero `SQLITE_BUSY` events in `--json` output.
+
+---
+
+## System-Wide Impact
+
+- **Interaction graph:** sync (`internal/cli/sync.go` in printed CLIs) calls store (`internal/store/store.go`). Other commands that write (e.g., printed CLI's `import`, `workflow`) hit the same store path — they inherit U5's mutex protection automatically.
+- **Error propagation:** non-critical resource failures now propagate as `sync_warning` events with exit 0; critical failures or `--strict` runs preserve non-zero exit. JSON consumers that watch the `sync_summary` event count `errored` field already see the data; only the exit-code policy changes.
+- **State lifecycle risks:** the mutex (U5) prevents partial-write races at the row level, but does not change transaction shape. `UpsertBatch` is still single-transaction-per-call; rollback semantics on error preserved.
+- **API surface parity:** the `--strict` flag is new; `--max-pages` default change is the only existing-flag behavior change. Generated CLI `--help` output reflects both. SKILL.md may need a one-line note about exit-code policy if any skill prose references "sync exits non-zero on failure" — audit during implementation.
+- **Integration coverage:** golden harness (`scripts/golden.sh`) is the cross-cutting safety net. Each unit produces template-emission diffs that the harness locks in. Miss-running golden after a template change is the most likely silent regression vector.
+- **Unchanged invariants:**
+ - Sync's `--json` output schema is unchanged except for new `sync_warning` cases (cap-hit, primary-key-unresolved). All existing event names and field shapes preserved.
+ - Store reads (`Get`, `List`, `Query`) are not serialized; concurrent reads remain a hot-path optimization.
+ - The cobra command tree of the printed CLI is unchanged at the `sync` and `store` boundaries — no command renames, no flag deprecations.
+
+---
+
+## Risks & Dependencies
+
+| Risk | Mitigation |
+|------|------------|
+| Backward compat: existing CIs depend on "any sync failure = non-zero exit." | `--strict` flag preserves the old behavior. **In-band signal:** the new default emits a `sync_warning` with `reason: "exit_policy_default_changed"` whenever it suppresses what would have been a non-zero exit, so CIs that watch sync output (vs. only exit code) discover the contract change. CHANGELOG entry + PR description + SKILL.md note. |
+| Mutex serialization measurably slows large syncs. | Unlikely (writes aren't the bottleneck) but verifiable. **Tradeoffs explicitly accepted:** mutex loses (a) backpressure (slow disk doesn't push back on fetchers; large in-memory result accumulation possible if many fetchers complete concurrently and stall on the lock), (b) opportunistic write batching (each `UpsertBatch` call is its own transaction). If benchmarks show memory pressure or throughput degradation in real-world syncs, revisit single-writer goroutine pattern — deferred decision in Open Questions. |
+| Removing kalshi-accreted fallback names breaks regen for kalshi-equivalent specs that lack `x-resource-id`. | **No deprecation needed in this case.** The user owns the kalshi CLI and will regenerate it with an `x-resource-id` annotation as part of landing this WU. No other public-library CLIs have specs that depend on the kalshi-specific fallback names. The runtime per-item `sync_anomaly` warning (`reason: "primary_key_unresolved"`) still fires loudly if any other unannotated spec tries to rely on those names. |
+| `x-critical` semantics confuse users (default false changes existing exit behavior). | `--strict` flag is the escape hatch. **In-band default-flip signal** (see backward-compat row above) makes the change discoverable. Default `false` documented in CHANGELOG, `--help` text, and SKILL.md. |
+| Golden harness churn — every unit produces diffs in `testdata/golden/expected/`. | Run `scripts/golden.sh verify` after each unit; explain diffs in PR description per AGENTS.md golden-test convention. |
+| Single-writer mutex over-serializes when multiple workers process the same table at once. | Writes were already racing on the same table-level lock at the SQLite layer. Mutex moves the race to the Go layer where it's free of `SQLITE_BUSY`. Net latency unchanged for write-bound paths. |
+| Mutex scope incomplete — `SaveSyncState`/`SaveSyncCursor`/`ClearSyncCursors` calls bypass the lock and SQLITE_BUSY recurs. | U5 enumerates every write method to wrap (Files section). Audit step requires grepping `s.db.Exec` and `s.db.Begin` for completeness. |
+| Sticky-cursor APIs burn the full 1000-page budget every sync. | U2 adds a sticky-cursor detector — break + emit `sync_warning` with `reason: "stuck_pagination"` when `nextCursor` doesn't advance across pages. |
+| F4b symptom (rows extracted but not stored) recurs silently. | U3 adds a `consumed > 0 && stored == 0 && extractFailures < consumed` probe that emits `sync_anomaly` with `reason: "stored_count_zero_after_extraction"`. Does not fix F4b's root cause (which remains under controlled-repro investigation) but ensures the symptom is visible the moment it recurs. |
+| Identity drift: introducing `x-resource-id` and `x-critical` shifts positioning from "zero-config OpenAPI generation" toward "annotated-spec generation." | Acknowledged. Both extensions have functional fallback chains so unannotated specs still work. The catalog-spec retrofit question is deferred to a follow-up WU (see Scope Boundaries). |
+| `--max-pages 1000` default not data-backed; could be too low or too high for catalog APIs. | Open Question deferred to implementation: pick value based on a quick survey of the largest paginated resource across `~/printing-press/library/`. The cap-hit `sync_warning` exists precisely so empirical tuning is feasible. |
+| `x-resource-id` extension naming conflicts with future OpenAPI spec evolution. | Bare `x-` prefix is OpenAPI-spec-compliant; the extension is local to the printing-press parser. If conflict arises, rename in a future migration with a deprecation period. |
+
+---
+
+## Documentation / Operational Notes
+
+- **CHANGELOG:** each unit adds a CHANGELOG entry under the `feat(cli):` or `fix(cli):` scope. The most user-visible changes are U2 (default `--max-pages` 10 → 1000) and U4 (exit-code policy + new `--strict` flag).
+- **AGENTS.md:** the "Anti-reimplementation" section already covers commands that read from the local store; no change needed. The "Side-effect command convention" doesn't apply here.
+- **SKILL.md:** if any skill prose claims "sync exits non-zero on any failure," update to "sync exits non-zero on critical-resource failure or with `--strict`." Audit during implementation.
+- **Public library:** existing CLIs in `mvanhorn/printing-press-library` keep working with old behavior until next regen. Maintainers who want the new behavior re-run `/printing-press` or `/printing-press emboss`.
+
+---
+
+## Sources & References
+
+- **GitHub issue:** [mvanhorn/cli-printing-press#421](https://github.com/mvanhorn/cli-printing-press/issues/421) — the retro that produced this WU
+- **Retro doc:** `manuscripts/pokeapi/20260429-230641/proofs/20260430-000000-retro-pokeapi-pp-cli.md` (under `~/printing-press/manuscripts/`)
+- **Prior retro for F2:** `docs/retros/2026-04-11-movie-goat-retro.md` (WU-5 added `--max-pages` flag)
+- **Prior retro for F4a:** `docs/retros/2026-04-10-kalshi-retro.md` (WU-3 recommended profiler-driven primary key extraction)
+- **Prior plan for F3:** `docs/plans/2026-04-12-002-fix-cross-cli-retro-remaining-findings-plan.md` (Unit 1, R3 — `MaxOpenConns(2) + WAL` with optional `writeMu`)
+- **Anti-pattern reference:** `docs/retros/2026-04-11-movie-goat-retro.md` ("Async goroutine write-through timing") — synchronous write-through preferred
+- **Public-library PR that surfaced the run:** [mvanhorn/printing-press-library#158](https://github.com/mvanhorn/printing-press-library/pull/158)
diff --git a/internal/generator/generator.go b/internal/generator/generator.go
index 943ada34..d3f686f9 100644
--- a/internal/generator/generator.go
+++ b/internal/generator/generator.go
@@ -1676,14 +1676,16 @@ func (g *Generator) renderStoreFiles(schema []TableDef) error {
}
storeData := struct {
*spec.APISpec
- SyncableResources []profiler.SyncableResource
- SearchableFields map[string][]string
- Tables []TableDef
+ SyncableResources []profiler.SyncableResource
+ DependentSyncResources []profiler.DependentResource
+ SearchableFields map[string][]string
+ Tables []TableDef
}{
- APISpec: g.Spec,
- SyncableResources: g.profile.SyncableResources,
- SearchableFields: g.profile.SearchableFields,
- Tables: schema,
+ APISpec: g.Spec,
+ SyncableResources: g.profile.SyncableResources,
+ DependentSyncResources: g.profile.DependentSyncResources,
+ SearchableFields: g.profile.SearchableFields,
+ Tables: schema,
}
if err := g.renderTemplate("store.go.tmpl", filepath.Join("internal", "store", "store.go"), storeData); err != nil {
return fmt.Errorf("rendering store: %w", err)
diff --git a/internal/generator/generator_test.go b/internal/generator/generator_test.go
index d19b3a9b..d15b85d8 100644
--- a/internal/generator/generator_test.go
+++ b/internal/generator/generator_test.go
@@ -3838,6 +3838,450 @@ func TestIsSyncAccessWarningClassification(t *testing.T) {
runGoCommand(t, outputDir, "test", "./internal/cli", "-run", "TestIsSyncAccessWarningClassification")
}
+// TestGeneratedSyncMaxPagesAndStickyCursor verifies that the generated
+// sync command (a) defaults --max-pages to 100 (covers <=10k items/resource
+// at default page size; bigger resources opt in explicitly), (b) emits a
+// structured sync_warning with reason "max_pages_cap_hit" on BOTH the flat
+// and dependent-resource code paths when the cap is reached, and (c) breaks
+// the pagination loop with a "stuck_pagination" sync_warning when the API
+// echoes a non-advancing next cursor across consecutive pages. The literal
+// "%s" interpolation pattern matches the sync_anomaly emission elsewhere in
+// sync.go.tmpl rather than %q Go-escaping; this test pins both the JSON
+// event shapes and the flag default at the template-emission layer so
+// future template churn cannot silently regress them.
+func TestGeneratedSyncMaxPagesAndStickyCursor(t *testing.T) {
+ t.Parallel()
+
+ apiSpec := &spec.APISpec{
+ Name: "pagedsync",
+ Version: "0.1.0",
+ BaseURL: "https://api.example.com",
+ Auth: spec.AuthConfig{
+ Type: "api_key",
+ Header: "Authorization",
+ Format: "Bearer {token}",
+ EnvVars: []string{"PAGEDSYNC_API_KEY"},
+ },
+ Config: spec.ConfigSpec{
+ Format: "toml",
+ Path: "~/.config/pagedsync-pp-cli/config.toml",
+ },
+ // Parent + child resources so the generated sync.go includes
+ // both syncResource (flat path) and syncDependentResource paths,
+ // each of which must emit the new max_pages_cap_hit warning and
+ // the stuck_pagination detector.
+ Resources: map[string]spec.Resource{
+ "channels": {
+ Description: "Manage channels",
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels",
+ Description: "List channels",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ },
+ },
+ },
+ "messages": {
+ Description: "Manage messages",
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels/{channelId}/messages",
+ Description: "List messages in a channel",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ },
+ },
+ },
+ },
+ }
+
+ outputDir := filepath.Join(t.TempDir(), naming.CLI(apiSpec.Name))
+ gen := New(apiSpec, outputDir)
+ require.NoError(t, gen.Generate())
+
+ syncGo, err := os.ReadFile(filepath.Join(outputDir, "internal", "cli", "sync.go"))
+ require.NoError(t, err)
+ syncContent := string(syncGo)
+
+ // (a) Default --max-pages is 100 (covers <=10k items per resource at
+ // the default page size of 100; the old 10-page default silently
+ // truncated reference resources at 1000 items).
+ assert.Contains(t, syncContent, `cmd.Flags().IntVar(&maxPages, "max-pages", 100,`,
+ "sync.go must declare --max-pages with default 100")
+ assert.NotContains(t, syncContent, `cmd.Flags().IntVar(&maxPages, "max-pages", 10,`,
+ "sync.go must not retain the old 10-page default")
+
+ // (b1) Flat-path cap-hit emits structured sync_warning with reason
+ // "max_pages_cap_hit". Use the literal %s embedded-quote shape — match
+ // the emission in sync.go.tmpl line 374.
+ assert.Contains(t, syncContent,
+ `{"event":"sync_warning","resource":"%s","reason":"max_pages_cap_hit"`,
+ "flat-path cap-hit must emit a structured sync_warning with reason max_pages_cap_hit")
+
+ // (b2) Dependent-path cap-hit emits the same shape (with parent attached).
+ // Pre-WU-2 the dependent-resource cap-hit branch was silent — verify
+ // the new emission lands.
+ assert.Contains(t, syncContent,
+ `{"event":"sync_warning","resource":"%s","parent":"%s","reason":"max_pages_cap_hit"`,
+ "dependent-resource cap-hit must emit a structured sync_warning with reason max_pages_cap_hit")
+
+ // (c) Sticky-cursor detection on the flat path. The check must compare
+ // against a tracked lastNextCursor and emit the structured warning when
+ // the cursor doesn't advance.
+ assert.Contains(t, syncContent, "lastNextCursor",
+ "sync.go must track lastNextCursor for sticky-cursor detection")
+ assert.Contains(t, syncContent, "nextCursor == lastNextCursor",
+ "sync.go must compare nextCursor against lastNextCursor to detect stuck pagination")
+ assert.Contains(t, syncContent,
+ `{"event":"sync_warning","resource":"%s","reason":"stuck_pagination"`,
+ "flat-path stuck-pagination must emit a structured sync_warning")
+
+ // (c2) Dependent-path sticky-cursor emission. Includes parent context.
+ assert.Contains(t, syncContent,
+ `{"event":"sync_warning","resource":"%s","parent":"%s","reason":"stuck_pagination"`,
+ "dependent-resource stuck-pagination must emit a structured sync_warning")
+
+ // AGENTS.md: emission must use the "%s" embedded-quote pattern, not
+ // %q. A %q usage here would be a real bug — JSON shapes for resource
+ // names containing quotes/backslashes would diverge across emission
+ // sites. The plan (docs/plans/2026-04-30-001) calls this out explicitly.
+ assert.NotContains(t, syncContent,
+ `"reason":%q,"message"`,
+ "sync_warning must use literal %s interpolation, not %q Go-escaping")
+
+ // Build the generated CLI to catch template-syntax / import errors that
+ // substring assertions miss.
+ runGoCommand(t, outputDir, "mod", "tidy")
+ runGoCommand(t, outputDir, "build", "./...")
+}
+
+// TestGeneratedSyncExitPolicy pins the generated sync command's exit-code
+// contract: (a) a --strict flag for callers that want any per-resource
+// failure to exit non-zero, (b) a `criticalResources` map literal at the
+// top of newSyncCmd projecting SyncableResource.Critical (set from
+// x-critical), (c) a four-branch exit-policy that downgrades non-critical
+// failures to warnings unless --strict is set, and (d) a one-shot in-band
+// sync_warning with reason "exit_policy_default_changed" emitted the first
+// time the policy suppresses a non-critical failure, so external callers
+// can detect partial-failure tolerance. The literal "%s" embedded-quote
+// pattern matches the shape used elsewhere in sync.go.tmpl.
+func TestGeneratedSyncExitPolicy(t *testing.T) {
+ t.Parallel()
+
+ apiSpec := &spec.APISpec{
+ Name: "exitsync",
+ Version: "0.1.0",
+ BaseURL: "https://api.example.com",
+ Auth: spec.AuthConfig{
+ Type: "api_key",
+ Header: "Authorization",
+ Format: "Bearer {token}",
+ EnvVars: []string{"EXITSYNC_API_KEY"},
+ },
+ Config: spec.ConfigSpec{
+ Format: "toml",
+ Path: "~/.config/exitsync-pp-cli/config.toml",
+ },
+ // Two flat resources: one annotated x-critical: true (channels) and
+ // one unannotated (messages). The generator should emit channels in
+ // the criticalResources map and omit messages.
+ Resources: map[string]spec.Resource{
+ "channels": {
+ Description: "Manage channels",
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels",
+ Description: "List channels",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ Critical: true,
+ },
+ },
+ },
+ "messages": {
+ Description: "Manage messages",
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/messages",
+ Description: "List messages",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ },
+ },
+ },
+ },
+ }
+
+ outputDir := filepath.Join(t.TempDir(), naming.CLI(apiSpec.Name))
+ gen := New(apiSpec, outputDir)
+ require.NoError(t, gen.Generate())
+
+ syncGo, err := os.ReadFile(filepath.Join(outputDir, "internal", "cli", "sync.go"))
+ require.NoError(t, err)
+ syncContent := string(syncGo)
+
+ // (a) --strict flag declared with a description that mentions the
+ // per-resource-failure behavior so callers understand the trade-off
+ // against the default critical-only exit policy.
+ assert.Contains(t, syncContent,
+ `cmd.Flags().BoolVar(&strict, "strict", false,`,
+ "sync.go must declare --strict flag")
+ assert.Contains(t, syncContent,
+ "any per-resource failure",
+ "--strict flag description should describe the per-resource-failure behavior")
+
+ // (b) criticalResources map literal lists exactly the critical resources.
+ assert.Contains(t, syncContent,
+ `var criticalResources = map[string]bool{`,
+ "sync.go must declare criticalResources as a package-level var")
+ assert.Contains(t, syncContent,
+ `"channels": true,`,
+ "criticalResources must include channels (x-critical: true)")
+ // messages is non-critical and must NOT appear with `: true,` in the map.
+ // We can't easily assert absence-from-map without a substring scan; ensure
+ // the unrelated literal isn't there.
+ assert.NotContains(t, syncContent,
+ `"messages": true,`,
+ "criticalResources must NOT include messages (no x-critical)")
+
+ // (c) Four-branch exit policy. The four guards land in sequence; assert
+ // each individually so a refactor can't silently collapse two of them.
+ assert.Contains(t, syncContent,
+ `if strict && errCount > 0 {`,
+ "strict-mode branch must exit non-zero on any error")
+ assert.Contains(t, syncContent,
+ `if criticalErrCount > 0 {`,
+ "critical-failure branch must exit non-zero regardless of --strict")
+ assert.Contains(t, syncContent,
+ `if successCount == 0 {`,
+ "nothing-synced branch must exit non-zero")
+
+ // criticalErrCount must be tallied at result-aggregation time using the
+ // criticalResources map. This pins the lookup mechanism so a refactor
+ // can't accidentally drop the per-resource classification.
+ assert.Contains(t, syncContent,
+ `if criticalResources[res.Resource] {`,
+ "sync.go must classify each errored resource against criticalResources")
+
+ // (d) In-band default-flip signal. Fires once when the new default
+ // suppressed a non-zero exit under the old contract.
+ assert.Contains(t, syncContent,
+ `"reason":"exit_policy_default_changed"`,
+ "sync.go must emit one-shot sync_warning with reason exit_policy_default_changed")
+ assert.Contains(t, syncContent,
+ `if errCount > 0 && !strict && criticalErrCount == 0 && successCount > 0 {`,
+ "default-flip signal must fire only when the new default suppressed a non-zero exit")
+
+ // AGENTS.md: emission must use the "%s" embedded-quote pattern, not
+ // %q. Match the sync_anomaly shape on line 374 of sync.go.tmpl.
+ assert.NotContains(t, syncContent,
+ `"reason":%q,"errored"`,
+ "exit_policy_default_changed must use literal %s interpolation, not %q Go-escaping")
+
+ // Build the generated CLI to catch template-syntax / import errors that
+ // substring assertions miss.
+ runGoCommand(t, outputDir, "mod", "tidy")
+ runGoCommand(t, outputDir, "build", "./...")
+}
+
+// TestGeneratedSyncIDFieldOverridesAndProbes pins the WU-2 U3 contract: the
+// generated sync command and store layer (a) emit a resourceIDFieldOverrides
+// map literal projecting SyncableResource.IDField (set by U1 from
+// x-resource-id or response-schema fallback), (b) drop kalshi-specific names
+// (ticker/event_ticker/series_ticker) from the runtime fallback list — no
+// other public-library CLIs depend on them and the user owns kalshi, (c)
+// emit per-item primary_key_unresolved sync_anomaly events the first time
+// silent drops occur (rate-limited via anomalyEmitted), and (d) emit the
+// F4b stored_count_zero_after_extraction probe at end-of-resource for the
+// case where extraction succeeded but rows didn't land. The AGENTS.md
+// "%s" embedded-quote pattern applies — same JSON-shape consistency as U2/U4.
+func TestGeneratedSyncIDFieldOverridesAndProbes(t *testing.T) {
+ t.Parallel()
+
+ apiSpec := &spec.APISpec{
+ Name: "idfieldsync",
+ Version: "0.1.0",
+ BaseURL: "https://api.example.com",
+ Auth: spec.AuthConfig{
+ Type: "api_key",
+ Header: "Authorization",
+ Format: "Bearer {token}",
+ EnvVars: []string{"IDFIELDSYNC_API_KEY"},
+ },
+ Config: spec.ConfigSpec{
+ Format: "toml",
+ Path: "~/.config/idfieldsync-pp-cli/config.toml",
+ },
+ // One resource with an explicit IDField (templated path), one without
+ // (runtime fallback). Both have a list endpoint so syncResource is
+ // emitted; messages additionally exercises syncDependentResource via
+ // path-templated parent ID.
+ Resources: map[string]spec.Resource{
+ "events": {
+ Description: "Manage events",
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/events",
+ Description: "List events",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ IDField: "event_id", // Templated override path
+ },
+ },
+ },
+ "channels": {
+ Description: "Manage channels",
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels",
+ Description: "List channels",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ // No IDField — exercises the runtime fallback path.
+ },
+ },
+ },
+ "messages": {
+ Description: "Manage messages",
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels/{channelId}/messages",
+ Description: "List messages",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ },
+ },
+ },
+ },
+ }
+
+ outputDir := filepath.Join(t.TempDir(), naming.CLI(apiSpec.Name))
+ gen := New(apiSpec, outputDir)
+ require.NoError(t, gen.Generate())
+
+ syncGo, err := os.ReadFile(filepath.Join(outputDir, "internal", "cli", "sync.go"))
+ require.NoError(t, err)
+ syncContent := string(syncGo)
+
+ storeGo, err := os.ReadFile(filepath.Join(outputDir, "internal", "store", "store.go"))
+ require.NoError(t, err)
+ storeContent := string(storeGo)
+
+ // (a) resourceIDFieldOverrides map declared in BOTH sync.go and store.go.
+ // The map projects SyncableResource.IDField — events with IDField=event_id
+ // must appear, channels (no IDField) must NOT.
+ assert.Contains(t, syncContent,
+ `var resourceIDFieldOverrides = map[string]string{`,
+ "sync.go must declare resourceIDFieldOverrides map")
+ assert.Contains(t, syncContent,
+ `"events": "event_id",`,
+ "sync.go resourceIDFieldOverrides must include events: event_id (from IDField)")
+ // channels has no IDField — assert it doesn't appear inside the override
+ // map. We can't use NotContains on `"channels":` blanket because the
+ // resource also appears in syncResourcePath ("channels": "/channels"); pin
+ // the absence by extracting the override-map block and asserting.
+ overrideStart := strings.Index(syncContent, `var resourceIDFieldOverrides = map[string]string{`)
+ require.GreaterOrEqual(t, overrideStart, 0)
+ overrideEnd := strings.Index(syncContent[overrideStart:], "}")
+ require.Greater(t, overrideEnd, 0)
+ overrideBlock := syncContent[overrideStart : overrideStart+overrideEnd]
+ assert.NotContains(t, overrideBlock, `"channels"`,
+ "resourceIDFieldOverrides block must NOT include channels (no IDField)")
+ assert.NotContains(t, overrideBlock, `"messages"`,
+ "resourceIDFieldOverrides block must NOT include messages (no IDField)")
+
+ assert.Contains(t, storeContent,
+ `var resourceIDFieldOverrides = map[string]string{`,
+ "store.go must declare resourceIDFieldOverrides map")
+ assert.Contains(t, storeContent,
+ `"events": "event_id",`,
+ "store.go resourceIDFieldOverrides must include events: event_id")
+
+ // (b) Generic fallback list reduced — kalshi-specific names dropped.
+ // The user owns the kalshi CLI and will regenerate with x-resource-id
+ // annotations; no other public-library CLIs depend on these names.
+ assert.Contains(t, storeContent,
+ `var genericIDFieldFallbacks = []string{"id", "ID", "name", "uuid", "slug", "key", "code", "uid"}`,
+ "store.go genericIDFieldFallbacks must be the reduced WU-2 U3 list")
+ // Negative: kalshi-specific names must not be in the fallback list.
+ // We assert a robust shape: no occurrence of "ticker" inside the fallback
+ // declaration. The generic check below also pins the absence at a
+ // site-independent layer.
+ assert.NotContains(t, storeContent, `"ticker"`,
+ "store.go must not contain ticker as a fallback ID name (WU-2 U3 dropped it)")
+ assert.NotContains(t, storeContent, `"event_ticker"`,
+ "store.go must not contain event_ticker as a fallback ID name (WU-2 U3 dropped it)")
+ assert.NotContains(t, storeContent, `"series_ticker"`,
+ "store.go must not contain series_ticker as a fallback ID name (WU-2 U3 dropped it)")
+
+ // (c) Per-item primary_key_unresolved sync_anomaly emission. Fires
+ // when extractFailures > 0 but at least one item landed; rate-limited
+ // to one event per resource per sync run via anomalyEmitted.
+ assert.Contains(t, syncContent,
+ `"reason":"primary_key_unresolved"`,
+ "sync.go must emit primary_key_unresolved sync_anomaly")
+ assert.Contains(t, syncContent,
+ "anomalyEmitted",
+ "sync.go must rate-limit primary_key_unresolved emission via anomalyEmitted flag")
+ // Pin the literal "%s" interpolation pattern (AGENTS.md).
+ assert.Contains(t, syncContent,
+ `{"event":"sync_anomaly","resource":"%s","consumed":%d,"stored":%d,"count":%d,"reason":"primary_key_unresolved"}`,
+ "primary_key_unresolved must use the literal %s interpolation pattern")
+
+ // Existing roll-up sync_anomaly preserved — fires when 100% of items
+ // fail extraction (entire page yields stored=0).
+ assert.Contains(t, syncContent,
+ `"reason":"all_items_failed_id_extraction"`,
+ "sync.go must preserve the all_items_failed_id_extraction roll-up event")
+
+ // (d) F4b symptom probe at end-of-resource. Fires when consumed > 0
+ // AND totalCount (stored) == 0 AND extraction succeeded for at least
+ // one item — the symptom that's currently held out for controlled
+ // repro. Probe must land in BOTH syncResource and syncDependentResource.
+ assert.Contains(t, syncContent,
+ `"reason":"stored_count_zero_after_extraction"`,
+ "sync.go must emit stored_count_zero_after_extraction sync_anomaly (F4b probe)")
+ // Pin the F4b emission shape (literal "%s" embedded quotes).
+ assert.Contains(t, syncContent,
+ `{"event":"sync_anomaly","resource":"%s","consumed":%d,"stored":0,"extract_failures":%d,"reason":"stored_count_zero_after_extraction"}`,
+ "F4b probe must use the literal %s interpolation pattern")
+
+ // UpsertBatch's signature is (int, int, error) — sync.go must consume
+ // all three return values. Without this contract, extractFailures would
+ // not be observable from sync's per-item warning code.
+ assert.Contains(t, syncContent,
+ `stored, extractFailures, err := db.UpsertBatch(resource, items)`,
+ "sync.go syncResource must consume the three-tuple UpsertBatch return")
+ assert.Contains(t, syncContent,
+ `stored, extractFailures, err := db.UpsertBatch(dep.Name, items)`,
+ "sync.go syncDependentResource must consume the three-tuple UpsertBatch return")
+
+ // store.go's UpsertBatch declaration matches the new signature.
+ assert.Contains(t, storeContent,
+ `func (s *Store) UpsertBatch(resourceType string, items []json.RawMessage) (int, int, error) {`,
+ "store.go UpsertBatch must return (stored, extractFailures, err)")
+
+ // AGENTS.md guard: literal "%s" interpolation, not %q Go-escaping.
+ assert.NotContains(t, syncContent,
+ `"reason":%q,"count"`,
+ "primary_key_unresolved must not use %q Go-escaping")
+
+ // Build the generated CLI to catch template-syntax / import errors that
+ // substring assertions miss. Also run the generated tests so the new
+ // per-resource override and fallback-list tests execute against real code.
+ runGoCommand(t, outputDir, "mod", "tidy")
+ runGoCommand(t, outputDir, "build", "./...")
+ runGoCommand(t, outputDir, "test", "./internal/store/...", "-run", "TestUpsertBatch_TemplatedIDFieldOverrideWins|TestUpsertBatch_GenericFallbackList|TestUpsertBatch_ExtractFailuresReturnedForPerItemMisses")
+}
+
func TestGenerateGraphQLCompiles(t *testing.T) {
t.Parallel()
diff --git a/internal/generator/templates/graphql_sync.go.tmpl b/internal/generator/templates/graphql_sync.go.tmpl
index 61b0e5d4..8ea944dc 100644
--- a/internal/generator/templates/graphql_sync.go.tmpl
+++ b/internal/generator/templates/graphql_sync.go.tmpl
@@ -254,6 +254,13 @@ func syncResource(c *client.Client, db *store.Store, resource, sinceTS string, f
var totalCount int
pagesFetched := 0
+ // consumedTotal/extractFailureTotal feed the F4b symptom probe at end-
+ // of-resource (rows extracted but none stored — likely an FTS5 trigger
+ // failure or transaction rollback below the PK-extraction layer).
+ // anomalyEmitted rate-limits per-resource warnings to one per sync run.
+ consumedTotal := 0
+ extractFailureTotal := 0
+ anomalyEmitted := false
pageSize := def.PageSize
if pageSize <= 0 {
pageSize = 50
@@ -316,24 +323,38 @@ func syncResource(c *client.Client, db *store.Store, resource, sinceTS string, f
break
}
- // Batch upsert all items from this page. Track stored separately
- // from consumed so we can warn when ID extraction fails for the
- // whole batch.
- stored, err := db.UpsertBatch(resource, conn.Nodes)
+ // Batch upsert all items from this page. UpsertBatch returns
+ // (stored, extractFailures, err); the GraphQL path uses the same
+ // store layer so it inherits the per-resource ID-field override
+ // map and reduced fallback list automatically.
+ stored, extractFailures, err := db.UpsertBatch(resource, conn.Nodes)
if err != nil {
if !humanFriendly {
fmt.Fprintf(os.Stderr, `{"event":"sync_error","resource":"%s","error":"%s"}`+"\n", resource, strings.ReplaceAll(err.Error(), `"`, `\"`))
}
return syncResult{Resource: resource, Count: totalCount, Err: fmt.Errorf("upserting batch for %s: %w", resource, err), Duration: time.Since(started)}
}
- if len(conn.Nodes) > 0 && stored == 0 {
+ // Emit at most one anomaly event per resource per sync run to avoid
+ // log spam when extraction fails on every page. Order matches the
+ // REST path (sync.go.tmpl): all-fail first, then partial-fail.
+ if len(conn.Nodes) > 0 && stored == 0 && !anomalyEmitted {
if humanFriendly {
fmt.Fprintf(os.Stderr, "warning: %s returned %d items but stored 0 — the local store will be empty for this resource. Likely cause: scalar item shape rather than objects with extractable IDs.\n", resource, len(conn.Nodes))
} else {
fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","consumed":%d,"stored":0,"reason":"all_items_failed_id_extraction"}`+"\n", resource, len(conn.Nodes))
}
+ anomalyEmitted = true
+ } else if extractFailures > 0 && stored > 0 && !anomalyEmitted {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "warning: %s — could not extract a primary key for %d item(s); add x-resource-id to your spec.\n", resource, extractFailures)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","count":%d,"reason":"primary_key_unresolved","message":"could not extract a primary key for %d item(s); add x-resource-id to your spec"}`+"\n", resource, extractFailures, extractFailures)
+ }
+ anomalyEmitted = true
}
+ consumedTotal += len(conn.Nodes)
+ extractFailureTotal += extractFailures
totalCount += stored
// Progress reporting
@@ -369,6 +390,19 @@ func syncResource(c *client.Client, db *store.Store, resource, sinceTS string, f
// Final sync state: clear cursor (sync is complete), update count
_ = db.SaveSyncState(resource, "", totalCount)
+ // F4b symptom probe: rows extracted successfully but none landed.
+ // Likely cause is below the PK-extraction layer (FTS5 trigger,
+ // transaction rollback, character encoding). Emits the symptom so
+ // the next reproduction has a concrete starting point; does not
+ // attempt to fix the root cause.
+ if consumedTotal > 0 && totalCount == 0 && extractFailureTotal < consumedTotal {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "warning: %s — extracted %d items but stored 0; %d failed PK extraction. Suspect FTS5 trigger, rollback, or encoding.\n", resource, consumedTotal, extractFailureTotal)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","consumed":%d,"extract_failures":%d,"reason":"stored_count_zero_after_extraction"}`+"\n", resource, consumedTotal, extractFailureTotal)
+ }
+ }
+
if !humanFriendly {
fmt.Fprintf(os.Stderr, `{"event":"sync_complete","resource":"%s","total":%d,"duration_ms":%d}`+"\n", resource, totalCount, time.Since(started).Milliseconds())
}
@@ -412,14 +446,3 @@ func parseSinceDuration(s string) (time.Time, error) {
}
}
-func extractID(obj map[string]any) string {
- for _, key := range []string{"id", "ID", "ticker", "key", "code", "uid", "uuid", "slug", "name"} {
- if v, ok := obj[key]; ok {
- s := fmt.Sprintf("%v", v)
- if s != "" && s != "<nil>" {
- return s
- }
- }
- }
- return ""
-}
diff --git a/internal/generator/templates/store.go.tmpl b/internal/generator/templates/store.go.tmpl
index d4fc9bbb..d1c81fd2 100644
--- a/internal/generator/templates/store.go.tmpl
+++ b/internal/generator/templates/store.go.tmpl
@@ -15,6 +15,7 @@ import (
"path/filepath"
"regexp"
"strings"
+ "sync"
"time"
_ "modernc.org/sqlite"
@@ -36,8 +37,14 @@ func IsUUID(s string) bool {
const StoreSchemaVersion = 1
type Store struct {
- db *sql.DB
- path string
+ db *sql.DB
+ // writeMu serializes all DB writes. Read paths bypass the lock and run
+ // concurrently against WAL. Resource-level concurrency in sync.go.tmpl
+ // is 1 (one goroutine per resource via len(resources)-sized work channel)
+ // — read-then-write sequences (e.g., GetSyncCursor → SaveSyncState) are
+ // race-free by construction within a resource.
+ writeMu sync.Mutex
+ path string
}
func Open(dbPath string) (*Store, error) {
@@ -422,6 +429,8 @@ func (s *Store) upsertGenericResourceTx(tx *sql.Tx, resourceType, id string, dat
}
func (s *Store) Upsert(resourceType, id string, data json.RawMessage) error {
+ s.writeMu.Lock()
+ defer s.writeMu.Unlock()
tx, err := s.db.Begin()
if err != nil {
return err
@@ -522,7 +531,11 @@ func ftsRowID(id string) int64 {
return int64(h & 0x7FFFFFFFFFFFFFFF) // ensure positive
}
-func lookupFieldValue(obj map[string]any, snakeKey string) any {
+// LookupFieldValue resolves a field value from a JSON object map, trying
+// the snake_case key first and the camelCase rendering second. Exported so
+// the sync command's extractID and the upsert path resolve fields the same
+// way — a divergence here produces silent drops on heterogeneous payloads.
+func LookupFieldValue(obj map[string]any, snakeKey string) any {
if v, ok := obj[snakeKey]; ok {
return v
}
@@ -539,6 +552,13 @@ func lookupFieldValue(obj map[string]any, snakeKey string) any {
return nil
}
+// lookupFieldValue is kept as an unexported alias for in-package callers so
+// the existing UpsertBatch code reads naturally without prefixing every call
+// with the package name.
+func lookupFieldValue(obj map[string]any, snakeKey string) any {
+ return LookupFieldValue(obj, snakeKey)
+}
+
{{- range .Tables}}
{{- if and (gt (len .Columns) 3) (ne .Name "sync_state") (hasDomainUpsert .Name)}}
// upsert{{pascal .Name}}Tx writes the typed-table portion of a {{.Name}} upsert
@@ -593,6 +613,8 @@ func (s *Store) Upsert{{pascal .Name}}(data json.RawMessage) error {
return fmt.Errorf("missing id for {{.Name}}")
}
+ s.writeMu.Lock()
+ defer s.writeMu.Unlock()
tx, err := s.db.Begin()
if err != nil {
return err
@@ -612,54 +634,94 @@ func (s *Store) Upsert{{pascal .Name}}(data json.RawMessage) error {
{{- end}}
{{- end}}
-// UpsertBatch inserts or replaces multiple records in a single transaction
-// and returns the count of items actually stored. This is 10-100x faster
-// than individual Upsert calls for bulk operations.
+// resourceIDFieldOverrides projects per-resource IDField (set by the profiler
+// from x-resource-id or response-schema fallback) into a runtime lookup map.
+// UpsertBatch consults this first so the templated path wins over the
+// generic fallback list. Empty when no resource declared an override; the
+// runtime fallback list still applies.
//
-// The returned count lets sync log the honest stored-row count rather
-// than the consumed-item count. When the API returns scalar IDs rather
-// than objects (Firebase /topstories.json, GitHub user-repo lists, etc.)
-// every item fails ID extraction and stored=0 even when consumed=N —
-// callers can detect this divergence and warn loudly instead of
-// silently reporting "N synced".
+// Includes both flat resources and dependent (parent-child) resources so a
+// child path-item annotated with x-resource-id resolves the same as a flat
+// path-item.
+var resourceIDFieldOverrides = map[string]string{
+{{- range .SyncableResources}}
+{{- if .IDField}}
+ {{printf "%q" .Name}}: {{printf "%q" .IDField}},
+{{- end}}
+{{- end}}
+{{- range .DependentSyncResources}}
+{{- if .IDField}}
+ {{printf "%q" .Name}}: {{printf "%q" .IDField}},
+{{- end}}
+{{- end}}
+}
+
+// genericIDFieldFallbacks is the runtime safety net for resources that did
+// NOT receive a templated IDField. API-specific names belong in spec
+// annotations (x-resource-id), not this list.
+var genericIDFieldFallbacks = []string{"id", "ID", "name", "uuid", "slug", "key", "code", "uid"}
+
+// UpsertBatch inserts or replaces multiple records in a single transaction
+// and returns (stored, extractFailures, err). stored counts rows actually
+// landed; extractFailures counts items that survived JSON unmarshal but had
+// no extractable primary key (templated IDField AND generic fallback both
+// missed). callers (sync.go.tmpl) compare these against len(items) to emit
+// the per-item primary_key_unresolved warning and the F4b
+// stored_count_zero_after_extraction probe.
//
// For resource types that have a domain-specific typed table, the per-item
// generic insert is followed by a dispatch to the matching upsert<Pascal>Tx
// inside the same transaction. Without that dispatch, paginated syncs would
// only populate the generic resources table — typed tables (and indexed
// columns like parent_id added by dependent-resource sync) would stay empty.
-func (s *Store) UpsertBatch(resourceType string, items []json.RawMessage) (int, error) {
+func (s *Store) UpsertBatch(resourceType string, items []json.RawMessage) (int, int, error) {
+ s.writeMu.Lock()
+ defer s.writeMu.Unlock()
tx, err := s.db.Begin()
if err != nil {
- return 0, fmt.Errorf("starting batch transaction: %w", err)
+ return 0, 0, fmt.Errorf("starting batch transaction: %w", err)
}
defer tx.Rollback()
- var stored, skippedCount int
+ var stored, skippedCount, extractFailures int
for _, item := range items {
var obj map[string]any
if err := json.Unmarshal(item, &obj); err != nil {
skippedCount++
continue
}
- // Try common primary key field names in priority order.
+ // Templated IDField wins; generic fallback list runs second when
+ // the override is empty OR the override field is absent on this
+ // particular item (response shape mismatches happen even when the
+ // spec declares x-resource-id).
var id string
- for _, key := range []string{"id", "ID", "ticker", "event_ticker", "series_ticker", "key", "code", "uid", "uuid", "slug", "name"} {
- if v := lookupFieldValue(obj, key); v != nil {
+ if override, ok := resourceIDFieldOverrides[resourceType]; ok && override != "" {
+ if v := lookupFieldValue(obj, override); v != nil {
s := fmt.Sprintf("%v", v)
if s != "" && s != "<nil>" {
id = s
- break
+ }
+ }
+ }
+ if id == "" {
+ for _, key := range genericIDFieldFallbacks {
+ if v := lookupFieldValue(obj, key); v != nil {
+ s := fmt.Sprintf("%v", v)
+ if s != "" && s != "<nil>" {
+ id = s
+ break
+ }
}
}
}
if id == "" {
skippedCount++
+ extractFailures++
continue
}
if err := s.upsertGenericResourceTx(tx, resourceType, id, item); err != nil {
- return 0, fmt.Errorf("upserting %s/%s: %w", resourceType, id, err)
+ return 0, extractFailures, fmt.Errorf("upserting %s/%s: %w", resourceType, id, err)
}
switch resourceType {
@@ -667,7 +729,7 @@ func (s *Store) UpsertBatch(resourceType string, items []json.RawMessage) (int,
{{- if and (gt (len .Columns) 3) (ne .Name "sync_state") (hasDomainUpsert .Name)}}
case "{{.Name}}":
if err := s.upsert{{pascal .Name}}Tx(tx, id, obj, item); err != nil {
- return 0, fmt.Errorf("typed upsert for %s/%s: %w", resourceType, id, err)
+ return 0, extractFailures, fmt.Errorf("typed upsert for %s/%s: %w", resourceType, id, err)
}
{{- end}}
{{- end}}
@@ -682,9 +744,9 @@ func (s *Store) UpsertBatch(resourceType string, items []json.RawMessage) (int,
}
if err := tx.Commit(); err != nil {
- return 0, err
+ return 0, extractFailures, err
}
- return stored, nil
+ return stored, extractFailures, nil
}
{{- range .Tables}}
@@ -721,6 +783,8 @@ func (s *Store) Search{{pascal .Name}}(query string, limit int) ([]json.RawMessa
{{- end}}
func (s *Store) SaveSyncState(resourceType, cursor string, count int) error {
+ s.writeMu.Lock()
+ defer s.writeMu.Unlock()
_, err := s.db.Exec(
`INSERT INTO sync_state (resource_type, last_cursor, last_synced_at, total_count)
VALUES (?, ?, ?, ?)
@@ -744,6 +808,8 @@ func (s *Store) GetSyncState(resourceType string) (cursor string, lastSynced tim
// SaveSyncCursor stores the pagination cursor for a resource type.
func (s *Store) SaveSyncCursor(resourceType, cursor string) error {
+ s.writeMu.Lock()
+ defer s.writeMu.Unlock()
_, err := s.db.Exec(
`INSERT INTO sync_state (resource_type, last_cursor, last_synced_at, total_count)
VALUES (?, ?, CURRENT_TIMESTAMP, 0)
@@ -801,6 +867,8 @@ func (s *Store) GetLastSyncedAt(resourceType string) string {
// ClearSyncCursors resets all sync state for a full resync.
func (s *Store) ClearSyncCursors() error {
+ s.writeMu.Lock()
+ defer s.writeMu.Unlock()
_, err := s.db.Exec("DELETE FROM sync_state")
return err
}
diff --git a/internal/generator/templates/store_upsert_batch_test.go.tmpl b/internal/generator/templates/store_upsert_batch_test.go.tmpl
index f900dd9e..16cd2115 100644
--- a/internal/generator/templates/store_upsert_batch_test.go.tmpl
+++ b/internal/generator/templates/store_upsert_batch_test.go.tmpl
@@ -2,22 +2,269 @@
// Generated by CLI Printing Press (https://github.com/mvanhorn/cli-printing-press). DO NOT EDIT.
package store
-{{- $hasTyped := false }}
-{{- range .Tables}}
-{{- if and (gt (len .Columns) 3) (ne .Name "sync_state") (hasDomainUpsert .Name)}}
-{{- $hasTyped = true }}
-{{- end}}
-{{- end}}
-{{- if $hasTyped }}
import (
"encoding/json"
"fmt"
"path/filepath"
+ "strings"
+ "sync"
"testing"
_ "modernc.org/sqlite"
)
+
+// TestStoreWrite_NoSQLITE_BUSY_HighConcurrency exercises the writeMu serialization
+// guarantee: 16 fetcher-style goroutines hammer the store with a mix of
+// UpsertBatch, SaveSyncState, and SaveSyncCursor calls. Before the mutex
+// fix, this test reproduces SQLITE_BUSY at default sync concurrency on
+// pure-Go SQLite (modernc.org/sqlite + WAL) because multiple writers
+// race for the WAL lock and busy_timeout retries are not exhaustive.
+//
+// Run under `go test -race` to catch any data races on Store fields.
+func TestStoreWrite_NoSQLITE_BUSY_HighConcurrency(t *testing.T) {
+ dbPath := filepath.Join(t.TempDir(), "data.db")
+ s, err := Open(dbPath)
+ if err != nil {
+ t.Fatalf("open: %v", err)
+ }
+ defer s.Close()
+
+ const goroutines = 16
+ const itemsPerBatch = 5
+
+ var wg sync.WaitGroup
+ errCh := make(chan error, goroutines*3)
+
+ for g := 0; g < goroutines; g++ {
+ wg.Add(1)
+ go func(gid int) {
+ defer wg.Done()
+ rt := fmt.Sprintf("rt_%d", gid)
+ items := make([]json.RawMessage, 0, itemsPerBatch)
+ for i := 0; i < itemsPerBatch; i++ {
+ items = append(items, json.RawMessage(fmt.Sprintf(`{"id": "g%d-i%d"}`, gid, i)))
+ }
+ if _, _, err := s.UpsertBatch(rt, items); err != nil {
+ errCh <- fmt.Errorf("UpsertBatch goroutine %d: %w", gid, err)
+ return
+ }
+ if err := s.SaveSyncState(rt, fmt.Sprintf("cursor-%d", gid), itemsPerBatch); err != nil {
+ errCh <- fmt.Errorf("SaveSyncState goroutine %d: %w", gid, err)
+ return
+ }
+ if err := s.SaveSyncCursor(rt, fmt.Sprintf("cursor2-%d", gid)); err != nil {
+ errCh <- fmt.Errorf("SaveSyncCursor goroutine %d: %w", gid, err)
+ return
+ }
+ }(g)
+ }
+ wg.Wait()
+ close(errCh)
+
+ for err := range errCh {
+ if err == nil {
+ continue
+ }
+ // SQLITE_BUSY surfaces as "database is locked" or "SQLITE_BUSY"
+ // in the error message — assert neither occurs.
+ msg := err.Error()
+ if strings.Contains(msg, "SQLITE_BUSY") || strings.Contains(strings.ToLower(msg), "database is locked") {
+ t.Fatalf("got SQLITE_BUSY-class error under concurrent writers: %v", err)
+ }
+ t.Fatalf("unexpected error under concurrent writers: %v", err)
+ }
+
+ // Verify all rows persisted: goroutines * itemsPerBatch in the generic
+ // resources table.
+ db := s.DB()
+ var total int
+ if err := db.QueryRow(`SELECT COUNT(*) FROM resources`).Scan(&total); err != nil {
+ t.Fatalf("count resources: %v", err)
+ }
+ if total != goroutines*itemsPerBatch {
+ t.Fatalf("resources total = %d, want %d", total, goroutines*itemsPerBatch)
+ }
+}
+
+// TestStoreWrite_PanicReleasesLock confirms that a panic inside a locked
+// section unwinds via defer s.writeMu.Unlock() so subsequent writers can
+// proceed. A leaked lock would deadlock the second call indefinitely.
+func TestStoreWrite_PanicReleasesLock(t *testing.T) {
+ dbPath := filepath.Join(t.TempDir(), "data.db")
+ s, err := Open(dbPath)
+ if err != nil {
+ t.Fatalf("open: %v", err)
+ }
+ defer s.Close()
+
+ // Trigger panic by passing a nil *Store method receiver indirectly:
+ // we call UpsertBatch with malformed JSON that survives Unmarshal
+ // (it's wrapped in skipped-count handling) — there's no easy panic
+ // path inside a locked section that doesn't also corrupt state, so
+ // we instead simulate the post-panic state by manually locking and
+ // unlocking, then assert subsequent calls succeed.
+ func() {
+ defer func() {
+ recover()
+ }()
+ s.writeMu.Lock()
+ defer s.writeMu.Unlock()
+ panic("simulated writer panic")
+ }()
+
+ // Subsequent writer must not block.
+ done := make(chan struct{})
+ go func() {
+ if _, _, err := s.UpsertBatch("post_panic", []json.RawMessage{json.RawMessage(`{"id": "x"}`)}); err != nil {
+ t.Errorf("post-panic UpsertBatch: %v", err)
+ }
+ close(done)
+ }()
+ <-done
+}
+
+// TestUpsertBatch_TemplatedIDFieldOverrideWins exercises the
+// per-resource ID-field override. When the spec author annotates a
+// path-item with x-resource-id, the profiler emits SyncableResource.IDField,
+// the generator templates this into resourceIDFieldOverrides, and
+// UpsertBatch consults that map first. This test seeds the override map
+// at runtime (since the generated table here may or may not declare any
+// override) to assert the lookup path itself works.
+func TestUpsertBatch_TemplatedIDFieldOverrideWins(t *testing.T) {
+ dbPath := filepath.Join(t.TempDir(), "data.db")
+ s, err := Open(dbPath)
+ if err != nil {
+ t.Fatalf("open: %v", err)
+ }
+ defer s.Close()
+
+ // Inject a runtime override for a synthetic resource. Item carries
+ // no generic-fallback field (no id/name/uuid/...) — only a custom
+ // "ticker" field. Without the override, all 3 items would be
+ // dropped as PK-unresolved; with it, all 3 land.
+ prev, hadPrev := resourceIDFieldOverrides["overrideTest"]
+ resourceIDFieldOverrides["overrideTest"] = "ticker"
+ defer func() {
+ if hadPrev {
+ resourceIDFieldOverrides["overrideTest"] = prev
+ } else {
+ delete(resourceIDFieldOverrides, "overrideTest")
+ }
+ }()
+
+ items := []json.RawMessage{
+ json.RawMessage(`{"ticker": "AAPL", "price": 100}`),
+ json.RawMessage(`{"ticker": "GOOG", "price": 200}`),
+ json.RawMessage(`{"ticker": "MSFT", "price": 300}`),
+ }
+ stored, extractFailures, err := s.UpsertBatch("overrideTest", items)
+ if err != nil {
+ t.Fatalf("UpsertBatch: %v", err)
+ }
+ if stored != 3 {
+ t.Fatalf("stored = %d, want 3 (templated override should resolve all PKs)", stored)
+ }
+ if extractFailures != 0 {
+ t.Fatalf("extractFailures = %d, want 0", extractFailures)
+ }
+}
+
+// TestUpsertBatch_GenericFallbackList covers each name in the reduced
+// fallback list. The kalshi-accreted names (ticker/event_ticker/series_ticker)
+// were dropped because the user owns kalshi and will regenerate
+// it with x-resource-id annotations; this test pins what the generic list
+// is now responsible for so a future trim doesn't silently break unannotated
+// specs.
+func TestUpsertBatch_GenericFallbackList(t *testing.T) {
+ dbPath := filepath.Join(t.TempDir(), "data.db")
+ s, err := Open(dbPath)
+ if err != nil {
+ t.Fatalf("open: %v", err)
+ }
+ defer s.Close()
+
+ for _, key := range []string{"id", "ID", "name", "uuid", "slug", "key", "code", "uid"} {
+ t.Run(key, func(t *testing.T) {
+ rt := "fallback_" + key
+ items := []json.RawMessage{
+ json.RawMessage(fmt.Sprintf(`{%q: %q}`, key, "value-1")),
+ json.RawMessage(fmt.Sprintf(`{%q: %q}`, key, "value-2")),
+ }
+ stored, extractFailures, err := s.UpsertBatch(rt, items)
+ if err != nil {
+ t.Fatalf("UpsertBatch(%q): %v", key, err)
+ }
+ if stored != 2 {
+ t.Fatalf("stored = %d, want 2 (fallback %q must resolve)", stored, key)
+ }
+ if extractFailures != 0 {
+ t.Fatalf("extractFailures = %d, want 0", extractFailures)
+ }
+ })
+ }
+
+ // Negative: API-specific names dropped must NOT resolve.
+ // Spec authors annotate these via x-resource-id instead.
+ for _, key := range []string{"ticker", "event_ticker", "series_ticker"} {
+ t.Run("dropped_"+key, func(t *testing.T) {
+ rt := "dropped_" + key
+ items := []json.RawMessage{
+ json.RawMessage(fmt.Sprintf(`{%q: %q}`, key, "v1")),
+ }
+ stored, extractFailures, err := s.UpsertBatch(rt, items)
+ if err != nil {
+ t.Fatalf("UpsertBatch(%q): %v", key, err)
+ }
+ if stored != 0 {
+ t.Fatalf("stored = %d, want 0 (%q must NOT be in the generic fallback list)", stored, key)
+ }
+ if extractFailures != 1 {
+ t.Fatalf("extractFailures = %d, want 1 (%q drop must surface as extract failure)", extractFailures, key)
+ }
+ })
+ }
+}
+
+// TestUpsertBatch_ExtractFailuresReturnedForPerItemMisses pins the third
+// return value: items that survive JSON unmarshal but have no extractable
+// PK (templated override AND generic fallback both miss) bump
+// extractFailures. The sync.go.tmpl call site uses this to emit the
+// per-resource primary_key_unresolved sync_anomaly the first time silent
+// drops occur.
+func TestUpsertBatch_ExtractFailuresReturnedForPerItemMisses(t *testing.T) {
+ dbPath := filepath.Join(t.TempDir(), "data.db")
+ s, err := Open(dbPath)
+ if err != nil {
+ t.Fatalf("open: %v", err)
+ }
+ defer s.Close()
+
+ items := []json.RawMessage{
+ json.RawMessage(`{"id": "ok-1"}`),
+ json.RawMessage(`{"some_random_field": "no-pk-here"}`),
+ json.RawMessage(`{"id": "ok-2"}`),
+ json.RawMessage(`{"another_field": 42}`),
+ }
+ stored, extractFailures, err := s.UpsertBatch("mixed_extraction", items)
+ if err != nil {
+ t.Fatalf("UpsertBatch: %v", err)
+ }
+ if stored != 2 {
+ t.Fatalf("stored = %d, want 2 (only items with id should land)", stored)
+ }
+ if extractFailures != 2 {
+ t.Fatalf("extractFailures = %d, want 2 (two items have no extractable PK)", extractFailures)
+ }
+}
+
+{{- $hasTyped := false }}
+{{- range .Tables}}
+{{- if and (gt (len .Columns) 3) (ne .Name "sync_state") (hasDomainUpsert .Name)}}
+{{- $hasTyped = true }}
+{{- end}}
+{{- end}}
+{{- if $hasTyped }}
{{- range .Tables}}
{{- if and (gt (len .Columns) 3) (ne .Name "sync_state") (hasDomainUpsert .Name)}}
{{- $hasParentID := false }}
@@ -41,7 +288,7 @@ func TestUpsertBatch_Populates{{pascal .Name}}Table(t *testing.T) {
json.RawMessage(`{"id": "test-002"}`),
json.RawMessage(`{"id": "test-003"}`),
}
- if _, err := s.UpsertBatch("{{.Name}}", items); err != nil {
+ if _, _, err := s.UpsertBatch("{{.Name}}", items); err != nil {
t.Fatalf("UpsertBatch: %v", err)
}
@@ -82,7 +329,7 @@ func TestUpsertBatch_Sets{{pascal .Name}}ParentID(t *testing.T) {
json.RawMessage(`{"id": "child-002", "parent_id": "parent-A"}`),
json.RawMessage(`{"id": "child-003", "parent_id": "parent-B"}`),
}
- if _, err := s.UpsertBatch("{{.Name}}", items); err != nil {
+ if _, _, err := s.UpsertBatch("{{.Name}}", items); err != nil {
t.Fatalf("UpsertBatch: %v", err)
}
diff --git a/internal/generator/templates/sync.go.tmpl b/internal/generator/templates/sync.go.tmpl
index e6304dcc..b87d3c09 100644
--- a/internal/generator/templates/sync.go.tmpl
+++ b/internal/generator/templates/sync.go.tmpl
@@ -35,6 +35,7 @@ func newSyncCmd(flags *rootFlags) *cobra.Command {
var dbPath string
var maxPages int
var latestOnly bool
+ var strict bool
{{- if .Pagination.DateRangeParam}}
var dates string
{{- end}}
@@ -51,9 +52,14 @@ Exit codes & warnings:
access-policy body) are reported as warnings rather than failing the
run. In --json mode each is emitted as a {"event":"sync_warning",...}
line carrying status, reason, and message fields, and a final
- {"event":"sync_summary",...} aggregates the run. The command exits
- non-zero only when every selected resource was access-denied or any
- resource hit a hard error.`,
+ {"event":"sync_summary",...} aggregates the run.
+
+ Exit 0 when at least one resource synced and no resource flagged in
+ the spec as critical (x-critical: true) failed; non-critical failures
+ emit {"event":"sync_warning","reason":"exit_policy_default_changed",
+ ...} so callers can detect that a partial failure was tolerated. Pass
+ --strict to exit non-zero on any per-resource failure. Exit is always
+ non-zero when every selected resource failed, regardless of --strict.`,
Example: ` # Sync all resources
{{.Name}}-pp-cli sync
@@ -177,6 +183,7 @@ Exit codes & warnings:
var totalSynced int
var errCount int
+ var criticalErrCount int
var warnCount int
var successCount int
for res := range results {
@@ -185,6 +192,9 @@ Exit codes & warnings:
fmt.Fprintf(os.Stderr, " %s: error: %v\n", res.Resource, res.Err)
}
errCount++
+ if criticalResources[res.Resource] {
+ criticalErrCount++
+ }
} else if res.Warn != nil {
if humanFriendly {
fmt.Fprintf(os.Stderr, " %s: warning: %v\n", res.Resource, res.Warn)
@@ -208,6 +218,9 @@ Exit codes & warnings:
fmt.Fprintf(os.Stderr, " %s: error: %v\n", res.Resource, res.Err)
}
errCount++
+ if criticalResources[res.Resource] {
+ criticalErrCount++
+ }
} else if res.Warn != nil {
if humanFriendly {
fmt.Fprintf(os.Stderr, " %s: warning: %v\n", res.Resource, res.Warn)
@@ -237,11 +250,37 @@ Exit codes & warnings:
totalSynced, totalResources, elapsed.Seconds())
}
- if errCount > 0 {
+ // Exit-code policy:
+ // 1. --strict + any error -> non-zero (legacy contract)
+ // 2. any critical failure -> non-zero regardless of --strict
+ // 3. nothing synced -> non-zero (preserves "all-warned" / "all-errored" exit)
+ // 4. otherwise -> exit 0 (any data synced + no critical failed)
+ // When branch 4 suppresses what branch 1 would have rejected, emit a
+ // one-shot sync_warning with reason "exit_policy_default_changed" so
+ // CI scripts that depend on $? != 0 can discover the contract change
+ // without reading the CHANGELOG.
+ if strict && errCount > 0 {
return fmt.Errorf("%d resource(s) failed to sync", errCount)
}
- if warnCount > 0 && successCount == 0 {
- return fmt.Errorf("%d resource(s) skipped due to insufficient access", warnCount)
+ if criticalErrCount > 0 {
+ return fmt.Errorf("%d critical resource(s) failed to sync", criticalErrCount)
+ }
+ if successCount == 0 {
+ if warnCount > 0 && errCount == 0 {
+ return fmt.Errorf("%d resource(s) skipped due to insufficient access", warnCount)
+ }
+ if errCount > 0 {
+ return fmt.Errorf("%d resource(s) failed to sync", errCount)
+ }
+ }
+ if errCount > 0 && !strict && criticalErrCount == 0 && successCount > 0 {
+ if !humanFriendly {
+ msg := fmt.Sprintf("%d resource(s) failed but exit code is 0 because the new default treats non-critical failures as warnings. Pass --strict to restore the old behavior, or annotate critical resources with x-critical: true. See CHANGELOG.", errCount)
+ fmt.Fprintf(os.Stderr, `{"event":"sync_warning","reason":"exit_policy_default_changed","errored":%d,"message":"%s"}`+"\n",
+ errCount, strings.ReplaceAll(msg, `"`, `\"`))
+ } else {
+ fmt.Fprintf(os.Stderr, "warning: %d resource(s) failed but exit code is 0 because the new default treats non-critical failures as warnings. Pass --strict to restore the old behavior, or annotate critical resources with x-critical: true.\n", errCount)
+ }
}
return nil
},
@@ -252,8 +291,9 @@ Exit codes & warnings:
cmd.Flags().StringVar(&since, "since", "", "Incremental sync duration (e.g. 7d, 24h, 1w, 30m)")
cmd.Flags().IntVar(&concurrency, "concurrency", 4, "Number of parallel sync workers")
cmd.Flags().StringVar(&dbPath, "db", "", "Database path (default: ~/.local/share/{{.Name}}-pp-cli/data.db)")
- cmd.Flags().IntVar(&maxPages, "max-pages", 10, "Maximum pages to fetch per resource (0 = unlimited)")
+ cmd.Flags().IntVar(&maxPages, "max-pages", 100, "Maximum pages to fetch per resource (0 = unlimited; cap-hit emits a sync_warning event)")
cmd.Flags().BoolVar(&latestOnly, "latest-only", false, "Refresh head of each resource only; clears resume cursor and caps pages at 1. Mutually exclusive with --since (--since wins).")
+ cmd.Flags().BoolVar(&strict, "strict", false, "Exit non-zero on any per-resource failure (default: only critical failures or all-resource failure exit non-zero).")
{{- if .Pagination.DateRangeParam}}
cmd.Flags().StringVar(&dates, "dates", "", "Date or date range to sync (passed as {{.Pagination.DateRangeParam}} query parameter)")
{{- end}}
@@ -293,6 +333,18 @@ func syncResource(c interface {
var progressCount int64
pagesFetched := 0
+ lastNextCursor := ""
+ // extractFailureTotal accumulates per-item primary-key extraction
+ // misses across pages within this resource sync. Resource-level
+ // concurrency is 1 (one goroutine per resource via the work channel)
+ // so this counter cannot race. We emit one primary_key_unresolved
+ // sync_anomaly per resource per run when there's at least one miss
+ // (rate-limited via the anomalyEmitted flag) and a roll-up
+ // all_items_failed_id_extraction event when 100% of a single page
+ // failed extraction.
+ var extractFailureTotal int
+ var consumedTotal int
+ anomalyEmitted := false
for {
params := map[string]string{}
@@ -348,13 +400,18 @@ func syncResource(c interface {
break
}
- // Batch upsert all items from this page. UpsertBatch returns the
- // count of rows actually stored — items whose primary-key field
- // can't be extracted (e.g. APIs that return scalar IDs rather
- // than objects) are silently skipped. Tracking stored separately
- // from consumed lets us emit a clear sync_anomaly event when an
- // API silently drops everything.
- stored, err := db.UpsertBatch(resource, items)
+ // Batch upsert all items from this page. UpsertBatch returns
+ // (stored, extractFailures, err): stored counts rows actually
+ // landed; extractFailures counts items that survived JSON
+ // unmarshal but had no extractable primary key (templated
+ // IDField AND generic fallback both missed). Tracking these
+ // separately lets us emit precise sync_anomaly events: a
+ // roll-up "all_items_failed_id_extraction" when an entire
+ // page yields zero stored, a per-resource
+ // "primary_key_unresolved" the first time any single item
+ // fails, and the F4b "stored_count_zero_after_extraction"
+ // probe when extraction succeeded but rows still didn't land.
+ stored, extractFailures, err := db.UpsertBatch(resource, items)
if err != nil {
if !humanFriendly {
fmt.Fprintf(os.Stderr, `{"event":"sync_error","resource":"%s","error":"%s"}`+"\n", resource, strings.ReplaceAll(err.Error(), `"`, `\"`))
@@ -362,6 +419,9 @@ func syncResource(c interface {
return syncResult{Resource: resource, Count: totalCount, Err: fmt.Errorf("upserting batch for %s: %w", resource, err), Duration: time.Since(started)}
}
+ consumedTotal += len(items)
+ extractFailureTotal += extractFailures
+
// When a non-empty page yielded zero stored rows, the API
// returned items in a shape we couldn't extract IDs from —
// likely scalar IDs (Firebase /topstories.json, GitHub user-
@@ -373,6 +433,18 @@ func syncResource(c interface {
} else {
fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","consumed":%d,"stored":0,"reason":"all_items_failed_id_extraction"}`+"\n", resource, len(items))
}
+ anomalyEmitted = true
+ } else if extractFailures > 0 && !anomalyEmitted {
+ // Per-item primary-key resolution failure but at least one
+ // item landed — emit one structured warning per resource per
+ // sync run so users see the first occurrence of silent drops
+ // instead of waiting for total failure.
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "\nwarning: %s had %d item(s) on this page with no extractable primary key — those rows were dropped silently. Annotate the spec with x-resource-id to fix.\n", resource, extractFailures)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","consumed":%d,"stored":%d,"count":%d,"reason":"primary_key_unresolved"}`+"\n", resource, len(items), stored, extractFailures)
+ }
+ anomalyEmitted = true
}
totalCount += stored
@@ -406,9 +478,27 @@ func syncResource(c interface {
if maxPages > 0 && pagesFetched >= maxPages {
if humanFriendly {
fmt.Fprintf(os.Stderr, "\n %s: reached --max-pages limit (%d pages, %d items)\n", resource, maxPages, totalCount)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_warning","resource":"%s","reason":"max_pages_cap_hit","message":"reached --max-pages cap of %d; data may be truncated. Re-run with --max-pages 0 (unlimited) or higher to verify."}`+"\n", resource, maxPages)
+ }
+ break
+ }
+
+ // Sticky-cursor detector: if the API echoes the same next cursor across
+ // consecutive pages without advancing, abort to prevent burning the
+ // --max-pages budget on a non-terminating loop. Checked AFTER the cap
+ // guard so cap-hit takes precedence; checked BEFORE the natural-end
+ // check below because the natural-end check would not catch a sticky
+ // non-empty cursor on its own.
+ if nextCursor != "" && nextCursor == lastNextCursor {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "\n %s: API returned the same next cursor across two pages; aborting to prevent budget waste.\n", resource)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_warning","resource":"%s","reason":"stuck_pagination","message":"API returned the same next cursor across two pages for resource %s; aborting to prevent budget waste."}`+"\n", resource, resource)
}
break
}
+ lastNextCursor = nextCursor
// Determine if there are more pages
if !hasMore || len(items) < pageSize.limit || nextCursor == "" {
@@ -421,6 +511,21 @@ func syncResource(c interface {
// Final sync state: clear cursor (sync is complete), update count
_ = db.SaveSyncState(resource, "", totalCount)
+ // F4b symptom probe: if items were consumed and successfully
+ // extracted (extractFailures < consumed) but nothing landed in
+ // the store, something downstream of extraction silently dropped
+ // rows — FTS5 trigger error, transaction rollback, character
+ // encoding. Emit a sync_anomaly so the symptom is visible the
+ // next time it recurs; the underlying root cause is held out for
+ // controlled repro.
+ if consumedTotal > 0 && totalCount == 0 && extractFailureTotal < consumedTotal {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "\nwarning: %s consumed %d items, extracted %d primary keys, but stored 0 rows — extraction succeeded yet nothing landed. Investigate FTS triggers / transaction rollback / encoding.\n", resource, consumedTotal, consumedTotal-extractFailureTotal)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","consumed":%d,"stored":0,"extract_failures":%d,"reason":"stored_count_zero_after_extraction"}`+"\n", resource, consumedTotal, extractFailureTotal)
+ }
+ }
+
if !humanFriendly {
fmt.Fprintf(os.Stderr, `{"event":"sync_complete","resource":"%s","total":%d,"duration_ms":%d}`+"\n", resource, totalCount, time.Since(started).Milliseconds())
}
@@ -555,7 +660,7 @@ func upsertSingleObject(db *store.Store, resource string, data json.RawMessage)
return db.Upsert(resource, resource, data)
}
- id := extractID(obj)
+ id := extractID(resource, obj)
if id == "" {
id = resource
}
@@ -682,6 +787,12 @@ func syncDependentResource(c interface {
var deniedParents int
var firstDenial *accessWarning
pageSize := determinePaginationDefaults()
+ // Per-resource extract-failure tracking for the F4b symptom probe and
+ // per-item primary_key_unresolved warning. See syncResource for the
+ // concurrency rationale (one goroutine per resource → no race).
+ var depExtractFailureTotal int
+ var depConsumedTotal int
+ depAnomalyEmitted := false
for idx, parentID := range parentIDs {
// Build child endpoint path by replacing the param placeholder
@@ -693,6 +804,7 @@ func syncDependentResource(c interface {
cursor := ""
pagesFetched := 0
+ lastNextCursor := ""
for {
params := map[string]string{}
@@ -748,7 +860,7 @@ func syncDependentResource(c interface {
}
}
- stored, err := db.UpsertBatch(dep.Name, items)
+ stored, extractFailures, err := db.UpsertBatch(dep.Name, items)
if err != nil {
if humanFriendly {
fmt.Fprintf(os.Stderr, "\n %s: upsert error for parent %s: %v\n", dep.Name, parentID, err)
@@ -756,12 +868,51 @@ func syncDependentResource(c interface {
break
}
+ depConsumedTotal += len(items)
+ depExtractFailureTotal += extractFailures
+ // Order matches the flat path (syncResource): all-fail first,
+ // then partial-fail. The all-fail case dominates — if stored==0
+ // with at least one item, the resource is broken regardless of
+ // how many extractions failed individually.
+ if len(items) > 0 && stored == 0 && !depAnomalyEmitted {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "\nwarning: %s returned %d items for parent %s but stored 0 — likely scalar item shape or unrecognized primary-key field name.\n", dep.Name, len(items), parentID)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","parent":"%s","consumed":%d,"stored":0,"reason":"all_items_failed_id_extraction"}`+"\n", dep.Name, parentID, len(items))
+ }
+ depAnomalyEmitted = true
+ } else if extractFailures > 0 && stored > 0 && !depAnomalyEmitted {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "\nwarning: %s had %d item(s) with no extractable primary key — those rows were dropped silently. Annotate the spec with x-resource-id to fix.\n", dep.Name, extractFailures)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","parent":"%s","consumed":%d,"stored":%d,"count":%d,"reason":"primary_key_unresolved"}`+"\n", dep.Name, parentID, len(items), stored, extractFailures)
+ }
+ depAnomalyEmitted = true
+ }
+
totalCount += stored
pagesFetched++
if maxPages > 0 && pagesFetched >= maxPages {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "\n %s: reached --max-pages limit (%d pages, %d items) for parent %s\n", dep.Name, maxPages, totalCount, parentID)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_warning","resource":"%s","parent":"%s","reason":"max_pages_cap_hit","message":"reached --max-pages cap of %d; data may be truncated. Re-run with --max-pages 0 (unlimited) or higher to verify."}`+"\n", dep.Name, parentID, maxPages)
+ }
break
}
+ // Sticky-cursor detector: see syncResource for rationale. Same shape
+ // here so dependent-resource page loops cannot burn the budget on a
+ // non-advancing next cursor.
+ if nextCursor != "" && nextCursor == lastNextCursor {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "\n %s: API returned the same next cursor across two pages for parent %s; aborting to prevent budget waste.\n", dep.Name, parentID)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_warning","resource":"%s","parent":"%s","reason":"stuck_pagination","message":"API returned the same next cursor across two pages for resource %s; aborting to prevent budget waste."}`+"\n", dep.Name, parentID, dep.Name)
+ }
+ break
+ }
+ lastNextCursor = nextCursor
if !hasMore || len(items) < pageSize.limit || nextCursor == "" {
break
}
@@ -778,6 +929,16 @@ func syncDependentResource(c interface {
_ = db.SaveSyncState(dep.Name, "", totalCount)
+ // F4b symptom probe: items consumed and extracted but nothing landed.
+ // See syncResource for rationale.
+ if depConsumedTotal > 0 && totalCount == 0 && depExtractFailureTotal < depConsumedTotal {
+ if humanFriendly {
+ fmt.Fprintf(os.Stderr, "\nwarning: %s consumed %d items, extracted %d primary keys, but stored 0 rows — extraction succeeded yet nothing landed. Investigate FTS triggers / transaction rollback / encoding.\n", dep.Name, depConsumedTotal, depConsumedTotal-depExtractFailureTotal)
+ } else {
+ fmt.Fprintf(os.Stderr, `{"event":"sync_anomaly","resource":"%s","consumed":%d,"stored":0,"extract_failures":%d,"reason":"stored_count_zero_after_extraction"}`+"\n", dep.Name, depConsumedTotal, depExtractFailureTotal)
+ }
+ }
+
// If every parent was access-denied and nothing was synced, surface as a
// warning so the run-level summary and exit code reflect insufficient access.
if deniedParents == len(parentIDs) && totalCount == 0 && firstDenial != nil {
@@ -792,9 +953,74 @@ func syncDependentResource(c interface {
}
{{- end}}
-func extractID(obj map[string]any) string {
- for _, key := range []string{"id", "ID", "ticker", "event_ticker", "series_ticker", "key", "code", "uid", "uuid", "slug", "name"} {
- if v, ok := obj[key]; ok {
+// resourceIDFieldOverrides projects per-resource IDField (set by the profiler
+// from x-resource-id or the response-schema fallback chain) into a runtime
+// lookup map. extractID consults this first so the templated path wins over
+// the generic fallback list; the generic list applies only when the override
+// is empty or the override field is absent on a given item.
+//
+// Includes both flat resources and dependent (parent-child) resources so
+// annotations on a child path-item are honored at runtime, not just on
+// flat paths.
+var resourceIDFieldOverrides = map[string]string{
+{{- range .SyncableResources}}
+{{- if .IDField}}
+ {{printf "%q" .Name}}: {{printf "%q" .IDField}},
+{{- end}}
+{{- end}}
+{{- range .DependentSyncResources}}
+{{- if .IDField}}
+ {{printf "%q" .Name}}: {{printf "%q" .IDField}},
+{{- end}}
+{{- end}}
+}
+
+// genericIDFieldFallbacks is the runtime safety net for resources that did
+// NOT receive a templated IDField. API-specific names belong in spec
+// annotations (x-resource-id), not this list.
+var genericIDFieldFallbacks = []string{"id", "ID", "name", "uuid", "slug", "key", "code", "uid"}
+
+// criticalResources is the template-time projection of per-resource Critical
+// (set by the profiler from the spec's path-item x-critical extension). It
+// is consulted at error-aggregation time so a non-critical failure can be
+// downgraded to a sync_warning + exit 0 unless --strict was passed.
+//
+// Includes both flat resources and dependent (parent-child) resources so a
+// failed child sync flagged x-critical: true exits non-zero just like a
+// flat-resource critical failure.
+var criticalResources = map[string]bool{
+{{- range .SyncableResources}}
+{{- if .Critical}}
+ {{printf "%q" .Name}}: true,
+{{- end}}
+{{- end}}
+{{- range .DependentSyncResources}}
+{{- if .Critical}}
+ {{printf "%q" .Name}}: true,
+{{- end}}
+{{- end}}
+}
+
+// extractID resolves an item's primary-key field. It consults the
+// per-resource templated override first; on miss, it falls through to the
+// generic fallback list. resource may be empty for callers that don't have
+// a resource context (only the generic list applies in that case).
+//
+// Field lookups go through store.LookupFieldValue so snake_case overrides
+// match camelCase JSON renderings. UpsertBatch resolves fields the same
+// way — divergence between the two paths produces silent drops on
+// heterogeneous payloads.
+func extractID(resource string, obj map[string]any) string {
+ if override, ok := resourceIDFieldOverrides[resource]; ok && override != "" {
+ if v := store.LookupFieldValue(obj, override); v != nil {
+ s := fmt.Sprintf("%v", v)
+ if s != "" && s != "<nil>" {
+ return s
+ }
+ }
+ }
+ for _, key := range genericIDFieldFallbacks {
+ if v := store.LookupFieldValue(obj, key); v != nil {
s := fmt.Sprintf("%v", v)
if s != "" && s != "<nil>" {
return s
diff --git a/internal/openapi/parser.go b/internal/openapi/parser.go
index 2beadd4e..cbba5046 100644
--- a/internal/openapi/parser.go
+++ b/internal/openapi/parser.go
@@ -1032,6 +1032,13 @@ func mapResources(doc *openapi3.T, out *spec.APISpec, basePath string) {
continue
}
+ // Read path-item-level extensions once per path. They apply to every
+ // operation under this path item — sync resources are resource-scoped,
+ // not method-scoped, so per-operation reads would either duplicate or
+ // disagree on the same identity.
+ pathResourceIDOverride := readPathItemResourceID(pathItem, path)
+ pathCritical := readPathItemCritical(pathItem, path)
+
primaryName, subName := resourceAndSubFromPath(path, basePath, commonPrefix)
if primaryName == "" {
warnf("skipping path %q: could not derive resource name", path)
@@ -1125,6 +1132,18 @@ func mapResources(doc *openapi3.T, out *spec.APISpec, basePath string) {
endpoint.Pagination = detectPagination(endpoint.Params, op)
}
endpoint.NoAuth = operationAllowsAnonymous(op, doc)
+
+ // IDField fallback chain: explicit x-resource-id wins over
+ // response-schema inference. Resolution happens at parse time so
+ // the profiler sees a single resolved value per endpoint and
+ // templates do not re-walk schemas at generation time.
+ if pathResourceIDOverride != "" {
+ endpoint.IDField = pathResourceIDOverride
+ } else {
+ endpoint.IDField = resolveIDFieldFromResponseSchema(op)
+ }
+ endpoint.Critical = pathCritical
+
targetEndpoints[endpointName] = endpoint
}
@@ -1881,6 +1900,151 @@ func selectResponseSchema(response *openapi3.Response) *openapi3.SchemaRef {
return nil
}
+// readPathItemResourceID reads the `x-resource-id` extension from a path item
+// and returns the resolved field name. Accepts only string values; non-string
+// values (numbers, booleans, malformed YAML) emit a warning and return "".
+// Empty/missing extensions return "" without warning.
+func readPathItemResourceID(pathItem *openapi3.PathItem, path string) string {
+ if pathItem == nil || pathItem.Extensions == nil {
+ return ""
+ }
+ raw, ok := pathItem.Extensions["x-resource-id"]
+ if !ok {
+ return ""
+ }
+ switch v := raw.(type) {
+ case string:
+ return strings.TrimSpace(v)
+ default:
+ warnf("path %q: x-resource-id must be a string, got %T; ignoring", path, raw)
+ return ""
+ }
+}
+
+// readPathItemCritical reads the `x-critical` extension from a path item.
+// Accepts native booleans and the truthy strings "true"/"1" (case-insensitive).
+// Other shapes emit a warning and return false.
+func readPathItemCritical(pathItem *openapi3.PathItem, path string) bool {
+ if pathItem == nil || pathItem.Extensions == nil {
+ return false
+ }
+ raw, ok := pathItem.Extensions["x-critical"]
+ if !ok {
+ return false
+ }
+ switch v := raw.(type) {
+ case bool:
+ return v
+ case string:
+ switch strings.ToLower(strings.TrimSpace(v)) {
+ case "true", "1":
+ return true
+ case "false", "0", "":
+ return false
+ default:
+ warnf("path %q: x-critical string %q is not truthy; treating as false", path, v)
+ return false
+ }
+ default:
+ warnf("path %q: x-critical must be bool or truthy string, got %T; treating as false", path, raw)
+ return false
+ }
+}
+
+// resolveIDFieldFromResponseSchema implements tiers 2-4 of the IDField fallback
+// chain: prefer "id", then "name", then the first scalar field listed in the
+// response schema's `required:` array (walking properties in their schema order).
+// Returns "" when no field qualifies; templates fall through to runtime list
+// scanning. Tier 1 (`x-resource-id` extension) is handled separately by the
+// caller — it overrides every tier here.
+func resolveIDFieldFromResponseSchema(op *openapi3.Operation) string {
+ if op == nil || op.Responses == nil {
+ return ""
+ }
+ success := selectSuccessResponse(op.Responses)
+ if success == nil || success.Value == nil {
+ return ""
+ }
+ schemaRef := selectResponseSchema(success.Value)
+ if schemaRef == nil || schemaRef.Value == nil {
+ return ""
+ }
+
+ // Walk to the item schema: arrays, {data: [...]} wrappers, or the object itself.
+ itemSchema := unwrapItemSchema(schemaRef.Value)
+ if itemSchema == nil {
+ return ""
+ }
+
+ // Tier 2: explicit `id` (required or optional)
+ if _, ok := itemSchema.Properties["id"]; ok {
+ return "id"
+ }
+ // Tier 3: explicit `name`
+ if _, ok := itemSchema.Properties["name"]; ok {
+ return "name"
+ }
+
+ // Tier 4: first scalar field appearing in the schema's required[] array,
+ // matched against properties in their schema-declared order. kin-openapi
+ // preserves YAML/JSON property order in MapKeys/Extensions but not via
+ // range over Properties (it's a Go map). Fall back to iterating the
+ // required[] slice itself: that order is stable and is what spec authors
+ // intend when they care about which field "wins."
+ for _, fieldName := range itemSchema.Required {
+ propRef, ok := itemSchema.Properties[fieldName]
+ if !ok || propRef == nil || propRef.Value == nil {
+ continue
+ }
+ if isScalarSchema(propRef.Value) {
+ return fieldName
+ }
+ }
+
+ return ""
+}
+
+// unwrapItemSchema returns the schema of items inside a list response. Handles
+// three shapes: bare object (no array, treat as a single-item resource and
+// inspect its fields), bare array (return Items.Value), or {data: [...]}
+// wrapper (mirroring mapResponse's handling).
+func unwrapItemSchema(schema *openapi3.Schema) *openapi3.Schema {
+ if schema == nil {
+ return nil
+ }
+ if isArraySchema(schema) && schema.Items != nil {
+ return schemaRefValue(schema.Items)
+ }
+ if isObjectSchema(schema) {
+ // {data: [...]} wrapper convention
+ if dataRef, ok := schema.Properties["data"]; ok {
+ if data := schemaRefValue(dataRef); isArraySchema(data) && data.Items != nil {
+ return schemaRefValue(data.Items)
+ }
+ }
+ return schema
+ }
+ return nil
+}
+
+// isScalarSchema reports whether the schema's type is a scalar — string,
+// integer, number, or boolean. Excludes objects, arrays, and refs that resolve
+// to either. Used by tier 4 of the IDField fallback chain to skip non-scalar
+// fields when picking a primary key.
+func isScalarSchema(schema *openapi3.Schema) bool {
+ if schema == nil || schema.Type == nil {
+ return false
+ }
+ switch {
+ case schema.Type.Includes(openapi3.TypeString),
+ schema.Type.Includes(openapi3.TypeInteger),
+ schema.Type.Includes(openapi3.TypeNumber),
+ schema.Type.Includes(openapi3.TypeBoolean):
+ return true
+ }
+ return false
+}
+
func mapTypes(doc *openapi3.T, out *spec.APISpec) {
if doc == nil || doc.Components == nil {
return
diff --git a/internal/openapi/parser_test.go b/internal/openapi/parser_test.go
index c22ecea5..48a1fbee 100644
--- a/internal/openapi/parser_test.go
+++ b/internal/openapi/parser_test.go
@@ -1221,3 +1221,304 @@ func TestSelectDescription(t *testing.T) {
})
}
}
+
+// findEndpoint walks resource endpoints (top-level and sub-resource) returning
+// the first endpoint whose path matches. Test helper.
+func findEndpoint(t *testing.T, parsed *spec.APISpec, path string) spec.Endpoint {
+ t.Helper()
+ for _, r := range parsed.Resources {
+ for _, e := range r.Endpoints {
+ if e.Path == path {
+ return e
+ }
+ }
+ for _, sub := range r.SubResources {
+ for _, e := range sub.Endpoints {
+ if e.Path == path {
+ return e
+ }
+ }
+ }
+ }
+ t.Fatalf("no endpoint found at path %q", path)
+ return spec.Endpoint{}
+}
+
+func TestParseReadsXResourceIDAndXCritical(t *testing.T) {
+ t.Parallel()
+
+ tests := []struct {
+ name string
+ path string // OpenAPI path key — kept stable across cases
+ extraExt string // extra path-item extensions injected raw
+ wantIDField string
+ wantCritical bool
+ }{
+ {
+ name: "x-resource-id explicit string wins over schema fallbacks",
+ extraExt: ` x-resource-id: ticker
+ x-critical: true
+`,
+ wantIDField: "ticker",
+ wantCritical: true,
+ },
+ {
+ name: "x-critical accepts string \"true\"",
+ extraExt: ` x-resource-id: ticker
+ x-critical: "true"
+`,
+ wantIDField: "ticker",
+ wantCritical: true,
+ },
+ {
+ name: "x-critical accepts string \"1\"",
+ extraExt: ` x-resource-id: ticker
+ x-critical: "1"
+`,
+ wantIDField: "ticker",
+ wantCritical: true,
+ },
+ {
+ name: "x-critical false (bool) leaves resource non-critical",
+ extraExt: ` x-resource-id: ticker
+ x-critical: false
+`,
+ wantIDField: "ticker",
+ wantCritical: false,
+ },
+ {
+ name: "x-critical non-truthy string treated as false",
+ extraExt: ` x-resource-id: ticker
+ x-critical: "maybe"
+`,
+ wantIDField: "ticker",
+ wantCritical: false,
+ },
+ {
+ name: "malformed x-resource-id integer ignored, falls back to id",
+ extraExt: ` x-resource-id: 123
+`,
+ wantIDField: "id", // fallback tier 2: response schema declares id
+ wantCritical: false,
+ },
+ {
+ name: "no extensions: response-schema fallback picks id",
+ extraExt: ``,
+ wantIDField: "id",
+ wantCritical: false,
+ },
+ }
+
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ t.Parallel()
+ yamlSpec := []byte(`openapi: "3.0.3"
+info:
+ title: Test
+ version: "1.0"
+servers:
+ - url: https://api.example.com
+paths:
+ /widgets:
+` + tt.extraExt + ` get:
+ operationId: listWidgets
+ responses:
+ "200":
+ description: OK
+ content:
+ application/json:
+ schema:
+ type: array
+ items:
+ type: object
+ properties:
+ id:
+ type: string
+ label:
+ type: string
+`)
+ parsed, err := Parse(yamlSpec)
+ require.NoError(t, err)
+
+ ep := findEndpoint(t, parsed, "/widgets")
+ assert.Equal(t, tt.wantIDField, ep.IDField, "IDField")
+ assert.Equal(t, tt.wantCritical, ep.Critical, "Critical")
+ })
+ }
+}
+
+func TestParseIDFieldFallbackChain(t *testing.T) {
+ t.Parallel()
+
+ tests := []struct {
+ name string
+ schemaYAML string
+ wantID string
+ }{
+ {
+ name: "tier 2: id present (required)",
+ schemaYAML: ` type: object
+ required: [id]
+ properties:
+ id: {type: string}
+ label: {type: string}
+`,
+ wantID: "id",
+ },
+ {
+ name: "tier 2: id present (optional) still wins",
+ schemaYAML: ` type: object
+ properties:
+ id: {type: string}
+ label: {type: string}
+`,
+ wantID: "id",
+ },
+ {
+ name: "tier 3: name when id absent",
+ schemaYAML: ` type: object
+ properties:
+ name: {type: string}
+ description: {type: string}
+`,
+ wantID: "name",
+ },
+ {
+ name: "tier 4: first required scalar when id and name absent",
+ schemaYAML: ` type: object
+ required: [ticker, market]
+ properties:
+ market: {type: string}
+ ticker: {type: string}
+ description: {type: string}
+`,
+ wantID: "ticker",
+ },
+ {
+ name: "tier 4: object-typed required field is skipped, next scalar wins",
+ schemaYAML: ` type: object
+ required: [meta, code]
+ properties:
+ meta:
+ type: object
+ properties:
+ version: {type: string}
+ code: {type: integer}
+`,
+ wantID: "code",
+ },
+ {
+ name: "tier 5: bottoms out when no required scalar exists",
+ schemaYAML: ` type: object
+ properties:
+ payload:
+ type: object
+ properties:
+ x: {type: string}
+`,
+ wantID: "",
+ },
+ }
+
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ t.Parallel()
+ yamlSpec := []byte(`openapi: "3.0.3"
+info:
+ title: Test
+ version: "1.0"
+servers:
+ - url: https://api.example.com
+paths:
+ /things:
+ get:
+ operationId: listThings
+ responses:
+ "200":
+ description: OK
+ content:
+ application/json:
+ schema:
+ type: array
+ items:
+` + tt.schemaYAML)
+ parsed, err := Parse(yamlSpec)
+ require.NoError(t, err)
+
+ ep := findEndpoint(t, parsed, "/things")
+ assert.Equal(t, tt.wantID, ep.IDField)
+ assert.False(t, ep.Critical)
+ })
+ }
+}
+
+// TestParseXResourceIDAppliesToEveryOperationOnPath exercises the "extensions
+// live on the path item" rule — both GET and POST operations under /widgets
+// inherit the x-resource-id and x-critical values, even though x-critical is
+// only meaningful for the syncable list endpoint.
+func TestParseXResourceIDAppliesToEveryOperationOnPath(t *testing.T) {
+ t.Parallel()
+
+ yamlSpec := []byte(`openapi: "3.0.3"
+info:
+ title: Test
+ version: "1.0"
+servers:
+ - url: https://api.example.com
+paths:
+ /widgets:
+ x-resource-id: widget_uid
+ x-critical: true
+ get:
+ operationId: listWidgets
+ responses:
+ "200":
+ description: OK
+ content:
+ application/json:
+ schema:
+ type: array
+ items:
+ type: object
+ properties:
+ id: {type: string}
+ post:
+ operationId: createWidget
+ responses:
+ "201":
+ description: Created
+`)
+ parsed, err := Parse(yamlSpec)
+ require.NoError(t, err)
+
+ var seen int
+ for _, r := range parsed.Resources {
+ for _, e := range r.Endpoints {
+ if e.Path == "/widgets" {
+ assert.Equal(t, "widget_uid", e.IDField, "method=%s", e.Method)
+ assert.True(t, e.Critical, "method=%s", e.Method)
+ seen++
+ }
+ }
+ }
+ assert.Equal(t, 2, seen, "expected GET + POST on /widgets to inherit extensions")
+}
+
+// TestParsePetstoreXExtensionsBaseline ensures the existing OpenAPI fixture
+// (no x-resource-id, no x-critical) is unaffected — IDField falls through to
+// the schema-fallback path, Critical stays false.
+func TestParsePetstoreXExtensionsBaseline(t *testing.T) {
+ t.Parallel()
+
+ data, err := os.ReadFile(filepath.Join("..", "..", "testdata", "openapi", "petstore.yaml"))
+ require.NoError(t, err)
+
+ parsed, err := Parse(data)
+ require.NoError(t, err)
+
+ for _, r := range parsed.Resources {
+ for _, e := range r.Endpoints {
+ assert.False(t, e.Critical, "%s %s: Critical must default to false", e.Method, e.Path)
+ }
+ }
+}
diff --git a/internal/profiler/profiler.go b/internal/profiler/profiler.go
index 644a146e..96506bb4 100644
--- a/internal/profiler/profiler.go
+++ b/internal/profiler/profiler.go
@@ -58,6 +58,16 @@ type SearchBodyField struct {
type SyncableResource struct {
Name string
Path string
+ // IDField is the resolved primary-key field name for items returned by the
+ // list endpoint, populated from the chosen endpoint's resolved value (in
+ // turn populated by the OpenAPI parser's `x-resource-id` extension or the
+ // response-schema fallback chain). Empty when no key could be resolved;
+ // templates fall back to runtime list scanning.
+ IDField string
+ // Critical flags this resource as essential — its failure during sync
+ // should fail the whole run even under the new (non-strict) exit-code
+ // policy. Defaults to false.
+ Critical bool
}
// DependentResource describes a child resource that requires iterating a parent
@@ -67,6 +77,20 @@ type DependentResource struct {
ParentResource string // parent resource name, e.g. "channels"
ParentIDParam string // path param name, e.g. "channel_id"
Path string // full path template, e.g. "/channels/{channel_id}/messages"
+
+ // IDField is the primary-key field name resolved from the spec
+ // (x-resource-id extension or the four-tier fallback chain). Empty when
+ // no override applies; templates fall back to a generic runtime list.
+ // Mirrors SyncableResource.IDField — annotations on a child path-item
+ // flow into this field so the override map covers dependent resources
+ // too, not just flat resources.
+ IDField string
+
+ // Critical signals that a failure of this dependent resource should
+ // fail the whole sync run regardless of --strict. Mirrors
+ // SyncableResource.Critical so spec authors can mark child paths as
+ // load-bearing.
+ Critical bool
}
// APIProfile describes the shape of an API and what power-user features it warrants.
@@ -118,8 +142,8 @@ func Profile(s *spec.APISpec) *APIProfile {
}
resourceNames := collectResourceNames(s.Resources)
- syncable := make(map[string]string) // resource name -> list endpoint path
- parameterized := make(map[string]string) // resource name -> parameterized list endpoint path (excluded from flat sync)
+ syncable := make(map[string]syncableMeta) // resource name -> chosen list endpoint metadata
+ parameterized := make(map[string]syncableMeta) // resource name -> parameterized list endpoint metadata (excluded from flat sync; carries IDField/Critical for dependent-resource emission)
searchable := make(map[string]map[string]struct{})
listResources := make(map[string]struct{})
@@ -252,8 +276,8 @@ func Profile(s *spec.APISpec) *APIProfile {
// (b) endpoints with required non-pagination query params (scoped lists
// like GetFriendList?steamid=REQUIRED that need a parent ID)
if !strings.Contains(endpoint.Path, "{") && !hasRequiredScopeParams(endpoint) {
- if existing, ok := syncable[resourceName]; !ok || len(endpoint.Path) < len(existing) {
- syncable[resourceName] = endpoint.Path
+ if existing, ok := syncable[resourceName]; !ok || len(endpoint.Path) < len(existing.Path) {
+ syncable[resourceName] = metaFromEndpoint(endpoint)
}
}
@@ -272,19 +296,24 @@ func Profile(s *spec.APISpec) *APIProfile {
// Enum-expanded paths are more specific than generic resource
// paths, so they always win on name collision. This ensures
// deterministic output regardless of Go map iteration order.
- syncable[expandedName] = expandedPath
+ meta := metaFromEndpoint(endpoint)
+ meta.Path = expandedPath
+ syncable[expandedName] = meta
}
} else if strings.Contains(endpoint.Path, "{") {
// Parameterized paginated paths can't sync standalone — track
- // them for dependent-resource detection below.
+ // them for dependent-resource detection below. Carry the
+ // endpoint's metadata so x-resource-id and x-critical
+ // annotations on a child path-item flow into the override
+ // and critical-resource maps.
if _, ok := parameterized[resourceName]; !ok {
- parameterized[resourceName] = endpoint.Path
+ parameterized[resourceName] = metaFromEndpoint(endpoint)
}
} else {
// Paginated endpoints override the path set above — they have
// richer pagination support for full data retrieval.
- if existing, ok := syncable[resourceName]; !ok || len(endpoint.Path) < len(existing) {
- syncable[resourceName] = endpoint.Path
+ if existing, ok := syncable[resourceName]; !ok || len(endpoint.Path) < len(existing.Path) {
+ syncable[resourceName] = metaFromEndpoint(endpoint)
}
}
}
@@ -294,8 +323,8 @@ func Profile(s *spec.APISpec) *APIProfile {
// wrapper field defined in the spec's types map).
// Only include endpoints whose name suggests a collection (list, all,
// index, etc.) — exclude singular getters like "get" or "show".
- if existing, ok := syncable[resourceName]; !ok || len(endpoint.Path) < len(existing) {
- syncable[resourceName] = endpoint.Path
+ if existing, ok := syncable[resourceName]; !ok || len(endpoint.Path) < len(existing.Path) {
+ syncable[resourceName] = metaFromEndpoint(endpoint)
}
}
@@ -862,9 +891,10 @@ func sortedKeys[V any](m map[string]V) []string {
// detectDependentResources examines parameterized paths and identifies parent-child
// relationships. For example, /channels/{channel_id}/messages becomes a dependent
// resource of "channels" (only one level of nesting).
-func detectDependentResources(parameterized map[string]string, syncable map[string]string) []DependentResource {
+func detectDependentResources(parameterized map[string]syncableMeta, syncable map[string]syncableMeta) []DependentResource {
var deps []DependentResource
- for childName, path := range parameterized {
+ for childName, meta := range parameterized {
+ path := meta.Path
// Extract the first {param} from the path
start := strings.Index(path, "{")
end := strings.Index(path, "}")
@@ -899,6 +929,8 @@ func detectDependentResources(parameterized map[string]string, syncable map[stri
ParentResource: parentResource,
ParentIDParam: paramName,
Path: path,
+ IDField: meta.IDField,
+ Critical: meta.Critical,
})
}
// Sort for deterministic output
@@ -908,8 +940,30 @@ func detectDependentResources(parameterized map[string]string, syncable map[stri
return deps
}
-// sortedSyncableResources converts a name->path map into a sorted slice of SyncableResource.
-func sortedSyncableResources(m map[string]string) []SyncableResource {
+// syncableMeta carries the chosen list endpoint's metadata while the profiler
+// is still selecting between candidates (e.g., flat vs. paginated). It is
+// converted into a SyncableResource at the end of Profile().
+type syncableMeta struct {
+ Path string
+ IDField string
+ Critical bool
+}
+
+// metaFromEndpoint extracts the IDField and Critical fields a parser populated
+// from path-item-level extensions (or, for IDField, from response-schema
+// inference). Keeps the per-endpoint plumbing in one place so future profiler
+// fields propagate uniformly.
+func metaFromEndpoint(e spec.Endpoint) syncableMeta {
+ return syncableMeta{
+ Path: e.Path,
+ IDField: e.IDField,
+ Critical: e.Critical,
+ }
+}
+
+// sortedSyncableResources converts the per-resource metadata map into a sorted
+// slice of SyncableResource so generated output is deterministic.
+func sortedSyncableResources(m map[string]syncableMeta) []SyncableResource {
names := make([]string, 0, len(m))
for k := range m {
names = append(names, k)
@@ -917,7 +971,13 @@ func sortedSyncableResources(m map[string]string) []SyncableResource {
sort.Strings(names)
resources := make([]SyncableResource, len(names))
for i, name := range names {
- resources[i] = SyncableResource{Name: name, Path: m[name]}
+ meta := m[name]
+ resources[i] = SyncableResource{
+ Name: name,
+ Path: meta.Path,
+ IDField: meta.IDField,
+ Critical: meta.Critical,
+ }
}
return resources
}
diff --git a/internal/profiler/profiler_test.go b/internal/profiler/profiler_test.go
index b93e23c1..ac002f9e 100644
--- a/internal/profiler/profiler_test.go
+++ b/internal/profiler/profiler_test.go
@@ -748,3 +748,194 @@ func TestProfileDependentResources_NoParentNoDependent(t *testing.T) {
profile := Profile(s)
assert.Empty(t, profile.DependentSyncResources, "no parent resource means no dependent detection")
}
+
+// TestProfileSyncableResourcePropagatesIDFieldAndCritical asserts that the new
+// per-endpoint metadata flows into SyncableResource. The OpenAPI parser is
+// responsible for resolving IDField (x-resource-id → id → name → required
+// scalar) before the profiler runs; the profiler's job is to pick the right
+// endpoint per resource and copy the resolved values through.
+func TestProfileSyncableResourcePropagatesIDFieldAndCritical(t *testing.T) {
+ s := &spec.APISpec{
+ Name: "tickers",
+ Resources: map[string]spec.Resource{
+ "tickers": {
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/tickers",
+ Response: spec.ResponseDef{Type: "array"},
+ IDField: "ticker",
+ Critical: true,
+ },
+ },
+ },
+ "events": {
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/events",
+ Response: spec.ResponseDef{Type: "array"},
+ IDField: "id",
+ // Critical not set — defaults to false.
+ },
+ },
+ },
+ },
+ }
+
+ profile := Profile(s)
+ byName := make(map[string]SyncableResource, len(profile.SyncableResources))
+ for _, r := range profile.SyncableResources {
+ byName[r.Name] = r
+ }
+
+ require.Contains(t, byName, "tickers")
+ assert.Equal(t, "ticker", byName["tickers"].IDField)
+ assert.True(t, byName["tickers"].Critical)
+
+ require.Contains(t, byName, "events")
+ assert.Equal(t, "id", byName["events"].IDField)
+ assert.False(t, byName["events"].Critical)
+}
+
+// TestProfileSyncableResourceUnsetMetadata pins the negative case — a spec with
+// no IDField/Critical on its endpoints emits a SyncableResource with both
+// fields zero-valued. Lets templates fall through to the runtime fallback list.
+func TestProfileSyncableResourceUnsetMetadata(t *testing.T) {
+ s := &spec.APISpec{
+ Name: "widgets",
+ Resources: map[string]spec.Resource{
+ "widgets": {
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/widgets",
+ Response: spec.ResponseDef{Type: "array"},
+ },
+ },
+ },
+ },
+ }
+
+ profile := Profile(s)
+ require.Len(t, profile.SyncableResources, 1)
+ assert.Equal(t, "widgets", profile.SyncableResources[0].Name)
+ assert.Empty(t, profile.SyncableResources[0].IDField)
+ assert.False(t, profile.SyncableResources[0].Critical)
+}
+
+// TestProfileDependentResourcePropagatesIDFieldAndCritical asserts that the
+// per-endpoint IDField/Critical metadata also flows into DependentResource for
+// parameterized child paths. Without this, x-resource-id and x-critical
+// annotations on a child path-item silently get dropped, and the
+// override/critical maps in the generated sync code only cover flat resources.
+func TestProfileDependentResourcePropagatesIDFieldAndCritical(t *testing.T) {
+ s := &spec.APISpec{
+ Name: "chat",
+ Resources: map[string]spec.Resource{
+ "channels": {
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels",
+ Response: spec.ResponseDef{Type: "array"},
+ },
+ },
+ },
+ "messages": {
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels/{channel_id}/messages",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ IDField: "msg_id",
+ Critical: true,
+ },
+ },
+ },
+ },
+ }
+
+ profile := Profile(s)
+ require.Len(t, profile.DependentSyncResources, 1)
+ dep := profile.DependentSyncResources[0]
+ assert.Equal(t, "messages", dep.Name)
+ assert.Equal(t, "channels", dep.ParentResource)
+ assert.Equal(t, "channel_id", dep.ParentIDParam)
+ assert.Equal(t, "/channels/{channel_id}/messages", dep.Path)
+ assert.Equal(t, "msg_id", dep.IDField)
+ assert.True(t, dep.Critical)
+}
+
+// TestProfileDependentResourceUnsetMetadata pins the negative case — a
+// parameterized child path with no IDField/Critical emits a DependentResource
+// with both fields zero-valued, leaving the runtime fallback list intact.
+func TestProfileDependentResourceUnsetMetadata(t *testing.T) {
+ s := &spec.APISpec{
+ Name: "chat",
+ Resources: map[string]spec.Resource{
+ "channels": {
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels",
+ Response: spec.ResponseDef{Type: "array"},
+ },
+ },
+ },
+ "messages": {
+ Endpoints: map[string]spec.Endpoint{
+ "list": {
+ Method: "GET",
+ Path: "/channels/{channel_id}/messages",
+ Response: spec.ResponseDef{Type: "array"},
+ Pagination: &spec.Pagination{CursorParam: "after", LimitParam: "limit"},
+ },
+ },
+ },
+ },
+ }
+
+ profile := Profile(s)
+ require.Len(t, profile.DependentSyncResources, 1)
+ assert.Empty(t, profile.DependentSyncResources[0].IDField)
+ assert.False(t, profile.DependentSyncResources[0].Critical)
+}
+
+// TestProfileSyncableResourceShorterPathWinsMetadata asserts that when two
+// candidate endpoints can populate the same syncable resource, the shorter-path
+// rule that already governs the Path field also picks the IDField/Critical
+// values — i.e., the metadata always reflects the endpoint sync will actually
+// call.
+func TestProfileSyncableResourceShorterPathWinsMetadata(t *testing.T) {
+ s := &spec.APISpec{
+ Name: "things",
+ Resources: map[string]spec.Resource{
+ "things": {
+ Endpoints: map[string]spec.Endpoint{
+ "longList": {
+ Method: "GET",
+ Path: "/v1/things/all",
+ Response: spec.ResponseDef{Type: "array"},
+ IDField: "loser",
+ Critical: false,
+ },
+ "shortList": {
+ Method: "GET",
+ Path: "/v1/things",
+ Response: spec.ResponseDef{Type: "array"},
+ IDField: "winner",
+ Critical: true,
+ },
+ },
+ },
+ },
+ }
+
+ profile := Profile(s)
+ require.Len(t, profile.SyncableResources, 1)
+ assert.Equal(t, "/v1/things", profile.SyncableResources[0].Path)
+ assert.Equal(t, "winner", profile.SyncableResources[0].IDField)
+ assert.True(t, profile.SyncableResources[0].Critical)
+}
diff --git a/internal/spec/spec.go b/internal/spec/spec.go
index 719cb57d..789ca244 100644
--- a/internal/spec/spec.go
+++ b/internal/spec/spec.go
@@ -493,7 +493,18 @@ type Endpoint struct {
Meta map[string]string `yaml:"meta,omitempty" json:"meta,omitempty"` // per-endpoint metadata (e.g., source_tier, source_count from crowd-sniff)
HeaderOverrides []RequiredHeader `yaml:"header_overrides,omitempty" json:"header_overrides,omitempty"` // per-endpoint header overrides (e.g., different api-version)
NoAuth bool `yaml:"no_auth,omitempty" json:"no_auth,omitempty"` // true when the endpoint does not require authentication
- Alias string `yaml:"-" json:"-"` // computed, not from YAML
+ // IDField is the resolved primary-key field name for items returned by this
+ // endpoint, populated either by a path-item-level `x-resource-id` extension
+ // or, for OpenAPI specs, by walking the response schema (id → name → first
+ // required scalar). Empty when no key could be resolved; templates fall back
+ // to runtime list scanning. Internal YAML specs may set this directly.
+ IDField string `yaml:"id_field,omitempty" json:"id_field,omitempty"`
+ // Critical flags this endpoint's resource as essential to a sync run. When
+ // true, a per-resource failure is treated as a hard failure even under the
+ // new (non-strict) exit-code policy. Populated from the path-item-level
+ // `x-critical` extension on OpenAPI specs; defaults to false.
+ Critical bool `yaml:"critical,omitempty" json:"critical,omitempty"`
+ Alias string `yaml:"-" json:"-"` // computed, not from YAML
}
func (e Endpoint) EffectiveResponseFormat() string {
diff --git a/internal/spec/spec_test.go b/internal/spec/spec_test.go
index 703bf057..4c3a5178 100644
--- a/internal/spec/spec_test.go
+++ b/internal/spec/spec_test.go
@@ -292,6 +292,70 @@ resources:
})
}
+func TestEndpointIDFieldAndCritical(t *testing.T) {
+ t.Parallel()
+
+ t.Run("parse YAML with id_field and critical set", func(t *testing.T) {
+ t.Parallel()
+ input := `
+name: test
+base_url: http://x
+resources:
+ tickers:
+ description: Tickers
+ endpoints:
+ list:
+ method: GET
+ path: /tickers
+ id_field: ticker
+ critical: true
+`
+ var s APISpec
+ require.NoError(t, yaml.Unmarshal([]byte(input), &s))
+ ep := s.Resources["tickers"].Endpoints["list"]
+ assert.Equal(t, "ticker", ep.IDField)
+ assert.True(t, ep.Critical)
+ })
+
+ t.Run("parse YAML without id_field/critical defaults to zero values", func(t *testing.T) {
+ t.Parallel()
+ input := `
+name: test
+base_url: http://x
+resources:
+ users:
+ description: Users
+ endpoints:
+ list:
+ method: GET
+ path: /users
+`
+ var s APISpec
+ require.NoError(t, yaml.Unmarshal([]byte(input), &s))
+ ep := s.Resources["users"].Endpoints["list"]
+ assert.Empty(t, ep.IDField)
+ assert.False(t, ep.Critical)
+ })
+
+ t.Run("marshal omits id_field/critical when unset", func(t *testing.T) {
+ t.Parallel()
+ ep := Endpoint{Method: "GET", Path: "/users"}
+ data, err := yaml.Marshal(ep)
+ require.NoError(t, err)
+ assert.NotContains(t, string(data), "id_field")
+ assert.NotContains(t, string(data), "critical")
+ })
+
+ t.Run("marshal includes id_field/critical when set", func(t *testing.T) {
+ t.Parallel()
+ ep := Endpoint{Method: "GET", Path: "/tickers", IDField: "ticker", Critical: true}
+ data, err := yaml.Marshal(ep)
+ require.NoError(t, err)
+ assert.Contains(t, string(data), "id_field: ticker")
+ assert.Contains(t, string(data), "critical: true")
+ })
+}
+
func TestCountMCPTools(t *testing.T) {
t.Parallel()
s := APISpec{
diff --git a/testdata/golden/expected/generate-golden-api/dogfood.json b/testdata/golden/expected/generate-golden-api/dogfood.json
index dfe95b77..e4873704 100644
--- a/testdata/golden/expected/generate-golden-api/dogfood.json
+++ b/testdata/golden/expected/generate-golden-api/dogfood.json
@@ -39,7 +39,7 @@
"state": "runtime_walking"
},
"naming_check": {
- "checked": 30
+ "checked": 32
},
"novel_features_check": {
"found": 0,
@@ -52,7 +52,7 @@
"valid_pct": 0
},
"pipeline_check": {
- "detail": "sync uses domain-specific Upsert methods; search methods not found; 1 domain tables found",
+ "detail": "sync uses domain-specific Upsert methods; search uses generic Search only; 1 domain tables found",
"domain_tables": 1,
"search_calls_domain": false,
"sync_calls_domain": true
@@ -72,8 +72,8 @@
"verdict": "WARN",
"wiring_check": {
"command_tree": {
- "defined": 38,
- "registered": 38
+ "defined": 40,
+ "registered": 40
},
"config_consistency": {
"consistent": true
diff --git a/testdata/golden/expected/generate-golden-api/printing-press-golden/.printing-press.json b/testdata/golden/expected/generate-golden-api/printing-press-golden/.printing-press.json
index f74d7e2c..ac23345e 100644
--- a/testdata/golden/expected/generate-golden-api/printing-press-golden/.printing-press.json
+++ b/testdata/golden/expected/generate-golden-api/printing-press-golden/.printing-press.json
@@ -11,10 +11,10 @@
"mcp_binary": "printing-press-golden-pp-mcp",
"mcp_public_tool_count": 1,
"mcp_ready": "full",
- "mcp_tool_count": 7,
+ "mcp_tool_count": 8,
"printing_press_version": "<PRINTING_PRESS_VERSION>",
"schema_version": 1,
- "spec_checksum": "sha256:d9a3383e991f59bed6be8fe19357ef81dc60e68854268fbcc6e6bbb092a4c2be",
+ "spec_checksum": "sha256:333b2c06c645b8f394fbbaaedf8126e06919529d7d9305c94c5ebcf1f5a897b5",
"spec_format": "openapi3",
"spec_path": "testdata/golden/fixtures/golden-api.yaml",
"spec_url": "file://testdata/golden/fixtures/golden-api.yaml"
diff --git a/testdata/golden/expected/generate-golden-api/printing-press-golden/README.md b/testdata/golden/expected/generate-golden-api/printing-press-golden/README.md
index 84404786..cf82d878 100644
--- a/testdata/golden/expected/generate-golden-api/printing-press-golden/README.md
+++ b/testdata/golden/expected/generate-golden-api/printing-press-golden/README.md
@@ -41,7 +41,7 @@ This checks your configuration and credentials.
### 4. Try Your First Command
```bash
-printing-press-golden-pp-cli projects list
+printing-press-golden-pp-cli currencies
```
## Usage
@@ -50,6 +50,12 @@ Run `printing-press-golden-pp-cli --help` for the full command reference and fla
## Commands
+### currencies
+
+Manage currencies
+
+- **`printing-press-golden-pp-cli currencies list`** - List supported currencies
+
### projects
Manage projects
@@ -74,19 +80,19 @@ Manage reports
```bash
# Human-readable table (default in terminal, JSON when piped)
-printing-press-golden-pp-cli projects list
+printing-press-golden-pp-cli currencies
# JSON for scripting and agents
-printing-press-golden-pp-cli projects list --json
+printing-press-golden-pp-cli currencies --json
# Filter to specific fields
-printing-press-golden-pp-cli projects list --json --select id,name,status
+printing-press-golden-pp-cli currencies --json --select id,name,status
# Dry run — show the request without sending
-printing-press-golden-pp-cli projects list --dry-run
+printing-press-golden-pp-cli currencies --dry-run
# Agent mode — JSON + compact + no prompts in one flag
-printing-press-golden-pp-cli projects list --agent
+printing-press-golden-pp-cli currencies --agent
```
## Agent Usage
diff --git a/testdata/golden/expected/generate-golden-api/printing-press-golden/SKILL.md b/testdata/golden/expected/generate-golden-api/printing-press-golden/SKILL.md
index e81d8edf..b667fe20 100644
--- a/testdata/golden/expected/generate-golden-api/printing-press-golden/SKILL.md
+++ b/testdata/golden/expected/generate-golden-api/printing-press-golden/SKILL.md
@@ -12,6 +12,10 @@ Purpose-built fixture for golden generation coverage.
## Command Reference
+**currencies** — Manage currencies
+
+- `printing-press-golden-pp-cli currencies` — List supported currencies
+
**projects** — Manage projects
- `printing-press-golden-pp-cli projects create` — Create project
@@ -56,7 +60,7 @@ Add `--agent` to any command. Expands to: `--json --compact --no-input --no-colo
- **Filterable** — `--select` keeps a subset of fields. Dotted paths descend into nested structures; arrays traverse element-wise. Critical for keeping context small on verbose APIs:
```bash
- printing-press-golden-pp-cli projects list --agent --select id,name,status
+ printing-press-golden-pp-cli currencies --agent --select id,name,status
```
- **Previewable** — `--dry-run` shows the request without sending
- **Offline-friendly** — sync/search commands can use the local SQLite store when available
@@ -107,7 +111,7 @@ A profile is a saved set of flag values, reused across invocations. Use it when
```
printing-press-golden-pp-cli profile save briefing --json
-printing-press-golden-pp-cli --profile briefing projects list
+printing-press-golden-pp-cli --profile briefing currencies
printing-press-golden-pp-cli profile list --json
printing-press-golden-pp-cli profile show briefing
printing-press-golden-pp-cli profile delete briefing --yes
diff --git a/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/cli/root.go b/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/cli/root.go
index 44f8977d..eb51e521 100644
--- a/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/cli/root.go
+++ b/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/cli/root.go
@@ -174,6 +174,7 @@ Run 'printing-press-golden-pp-cli doctor' to verify auth and connectivity.`,
rootCmd.AddCommand(newWhichCmd(flags))
rootCmd.AddCommand(newExportCmd(flags))
rootCmd.AddCommand(newImportCmd(flags))
+ rootCmd.AddCommand(newSearchCmd(flags))
rootCmd.AddCommand(newSyncCmd(flags))
rootCmd.AddCommand(newAnalyticsCmd(flags))
rootCmd.AddCommand(newWorkflowCmd(flags))
@@ -181,6 +182,7 @@ Run 'printing-press-golden-pp-cli doctor' to verify auth and connectivity.`,
rootCmd.AddCommand(newOrphansCmd(flags))
rootCmd.AddCommand(newLoadCmd(flags))
rootCmd.AddCommand(newAPICmd(flags))
+ rootCmd.AddCommand(newCurrenciesPromotedCmd(flags))
rootCmd.AddCommand(newPublicPromotedCmd(flags))
rootCmd.AddCommand(newVersionCliCmd())
diff --git a/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/mcp/tools.go b/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/mcp/tools.go
index b0b94daa..7f31d036 100644
--- a/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/mcp/tools.go
+++ b/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/mcp/tools.go
@@ -24,6 +24,15 @@ import (
// RegisterTools registers all API operations as MCP tools.
func RegisterTools(s *server.MCPServer) {
+ s.AddTool(
+ mcplib.NewTool("currencies_list",
+ mcplib.WithDescription("List supported currencies. Returns array of Currency."),
+ mcplib.WithReadOnlyHintAnnotation(true),
+ mcplib.WithDestructiveHintAnnotation(false),
+ mcplib.WithOpenWorldHintAnnotation(true),
+ ),
+ makeAPIHandler("GET", "/currencies", []string{ }),
+ )
s.AddTool(
mcplib.NewTool("projects_create",
mcplib.WithDescription("Create project. Required: name, visibility. Optional: owner_email. Returns the new Project."),
@@ -95,6 +104,17 @@ func RegisterTools(s *server.MCPServer) {
),
makeAPIHandler("GET", "/reports/{year}/summary", []string{"year", }),
)
+ // Search tool — faster than iterating list endpoints for finding specific items
+ s.AddTool(
+ mcplib.NewTool("search",
+ mcplib.WithDescription("Full-text search across all synced data. Faster than paginating list endpoints. Requires sync first."),
+ mcplib.WithString("query", mcplib.Required(), mcplib.Description("Search query (supports FTS5 syntax: AND, OR, NOT, quotes for phrases)")),
+ mcplib.WithNumber("limit", mcplib.Description("Max results (default 25)")),
+ mcplib.WithReadOnlyHintAnnotation(true),
+ mcplib.WithDestructiveHintAnnotation(false),
+ ),
+ handleSearch,
+ )
// SQL tool — ad-hoc analysis on synced data without API calls
s.AddTool(
mcplib.NewTool("sql",
@@ -245,6 +265,33 @@ func dbPath() string {
// Note: MCP tools use their own dbPath() because they are in a separate package (main, not cli).
// The CLI's defaultDBPath() in the cli package uses the same canonical path.
+func handleSearch(ctx context.Context, req mcplib.CallToolRequest) (*mcplib.CallToolResult, error) {
+ args := req.GetArguments()
+ query, ok := args["query"].(string)
+ if !ok || query == "" {
+ return mcplib.NewToolResultError("query is required"), nil
+ }
+
+ limit := 25
+ if v, ok := args["limit"].(float64); ok && v > 0 {
+ limit = int(v)
+ }
+
+ db, err := store.Open(dbPath())
+ if err != nil {
+ return mcplib.NewToolResultError(fmt.Sprintf("opening database: %v", err)), nil
+ }
+ defer db.Close()
+
+ results, err := db.Search(query, limit)
+ if err != nil {
+ return mcplib.NewToolResultError(fmt.Sprintf("search failed: %v", err)), nil
+ }
+
+ data, _ := json.MarshalIndent(results, "", " ")
+ return mcplib.NewToolResultText(string(data)), nil
+}
+
func handleSQL(ctx context.Context, req mcplib.CallToolRequest) (*mcplib.CallToolResult, error) {
args := req.GetArguments()
query, ok := args["query"].(string)
@@ -297,7 +344,7 @@ func handleContext(_ context.Context, _ mcplib.CallToolRequest) (*mcplib.CallToo
"api": "printing-press-golden",
"description": "Purpose-built fixture for golden generation coverage.",
"archetype": "project-management",
- "tool_count": 7,
+ "tool_count": 8,
// tool_surface tells agents which surface a capability lives on.
"tool_surface": "MCP exposes typed endpoint tools plus a runtime mirror of user-facing CLI commands. Endpoint tools keep typed schemas; command-mirror tools shell out to the companion printing-press-golden-pp-cli binary.",
"auth": map[string]any{
@@ -305,6 +352,12 @@ func handleContext(_ context.Context, _ mcplib.CallToolRequest) (*mcplib.CallToo
"env_vars": []string{"PRINTING_PRESS_GOLDEN_API_KEY_AUTH", },
},
"resources": []map[string]any{
+ {
+ "name": "currencies",
+ "description": "Manage currencies",
+ "endpoints": []string{"list", },
+ "syncable": true,
+ },
{
"name": "projects",
"description": "Manage projects",
diff --git a/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/types/types.go b/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/types/types.go
index 9f57cd46..8853a114 100644
--- a/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/types/types.go
+++ b/testdata/golden/expected/generate-golden-api/printing-press-golden/internal/types/types.go
@@ -10,6 +10,12 @@ type CreateProjectRequest struct {
Visibility string `json:"visibility"`
}
+type Currency struct {
+ Code string `json:"code"`
+ Decimals int `json:"decimals"`
+ Symbol string `json:"symbol"`
+}
+
type Project struct {
Id string `json:"id"`
Name string `json:"name"`
diff --git a/testdata/golden/expected/generate-golden-api/scorecard.json b/testdata/golden/expected/generate-golden-api/scorecard.json
index c4b566e2..4e2e1034 100644
--- a/testdata/golden/expected/generate-golden-api/scorecard.json
+++ b/testdata/golden/expected/generate-golden-api/scorecard.json
@@ -3,7 +3,7 @@
"api_name": "printing-press-golden",
"competitor_scores": null,
"gap_report": [
- "MCP: 7 tools (1 public, 6 auth-required) — readiness: full"
+ "MCP: 8 tools (1 public, 7 auth-required) — readiness: full"
],
"overall_grade": "A",
"steinberger": {
@@ -25,7 +25,7 @@
"mcp_remote_transport": 5,
"mcp_surface_strategy": 0,
"mcp_token_efficiency": 7,
- "mcp_tool_design": 0,
+ "mcp_tool_design": 5,
"output_modes": 10,
"path_validity": 0,
"percentage": 81,
@@ -34,12 +34,11 @@
"terminal_ux": 8,
"total": 81,
"type_fidelity": 3,
- "vision": 7,
+ "vision": 8,
"workflows": 10
},
"unscored_dimensions": [
"mcp_description_quality",
- "mcp_tool_design",
"mcp_surface_strategy",
"path_validity",
"auth_protocol",
diff --git a/testdata/golden/fixtures/golden-api.yaml b/testdata/golden/fixtures/golden-api.yaml
index cb1ed9dd..858b1567 100644
--- a/testdata/golden/fixtures/golden-api.yaml
+++ b/testdata/golden/fixtures/golden-api.yaml
@@ -86,6 +86,19 @@ components:
enum: [low, normal, high]
completed:
type: boolean
+ Currency:
+ # Currency lacks `id` and `name` so the IDField fallback chain in
+ # the OpenAPI parser cannot pick a tier-2 (id) or tier-3 (name) PK.
+ # The runtime generic fallback list at UpsertBatch time picks up
+ # `code` instead. This locks the safety-net path in. WU-2 U3.
+ type: object
+ properties:
+ code:
+ type: string
+ symbol:
+ type: string
+ decimals:
+ type: integer
paths:
/public/status:
get:
@@ -97,6 +110,16 @@ paths:
"200":
description: OK
/projects:
+ x-critical: true
+ # x-resource-id locks in U3's templated PK extraction path: the profiler
+ # emits SyncableResource.IDField="id", the generator templates that into
+ # resourceIDFieldOverrides, and UpsertBatch consults the override before
+ # falling back to the generic list. The chosen field happens to also be
+ # in the fallback list — that's intentional for the golden harness so
+ # the BEHAVIOR is identical, but the CODE PATH differs (override map vs
+ # fallback loop). The diff this introduces in the generated store.go
+ # locks the override-emission contract in.
+ x-resource-id: id
get:
tags: [projects]
operationId: listProjects
@@ -228,6 +251,25 @@ paths:
responses:
"200":
description: OK
+ # /currencies has no x-resource-id and the response schema has neither `id`
+ # nor `name` — exercises U3's runtime safety-net path: the generic fallback
+ # list at UpsertBatch resolves the PK via `code`.
+ /currencies:
+ get:
+ tags: [currencies]
+ operationId: listCurrencies
+ summary: List supported currencies
+ parameters:
+ - $ref: "#/components/parameters/ApiVersion"
+ responses:
+ "200":
+ description: OK
+ content:
+ application/json:
+ schema:
+ type: array
+ items:
+ $ref: "#/components/schemas/Currency"
# Exercises the path-param reclassification path: `year` is in:path, but the
# OpenAPI parser reclassifies date/year/month-named params to PathParam=true,
# Positional=false (rendered as a flag, but still substituted in the URL).
← d24f60ed feat(cli,skills): five remaining retro WUs from postman-expl
·
back to Cli Printing Press
·
fix(cli): store.OpenWithContext + fast-path version check (# c11d0d95 →