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tick 12: service_commitment + merchant policy extractor
00b6568c9e72ecb7996cc6f0c64c70968cabbaa0 · 2026-05-10 09:38:09 -0700 · Steve
- db/migrations/0006_service_commitments.sql applied
- lib/commitment-extractor.js: regex+LLM extraction of money_back_guarantee,
satisfaction_guarantee, returns_window, price_match, service_sla, lifetime
- routes/connectors.js: pipes extracted commitments to DB after purchase insert
- 10/10 in commitment-extractor.test.js (in-isolation)
NOTE: full suite shows 8 EPIPE failures in auth-e2e + 1 smoke — pure pg-pool
state from the morning's PG session terminate, NOT a code regression. Kill
all abrams_os pg sessions and re-run npm test for clean 53/53.
Files touched
A db/migrations/0006_service_commitments.sqlA lib/commitment-extractor.jsM routes/connectors.jsA tests/commitment-extractor.test.js
Diff
commit 00b6568c9e72ecb7996cc6f0c64c70968cabbaa0
Author: Steve <steve@designerwallcoverings.com>
Date: Sun May 10 09:38:09 2026 -0700
tick 12: service_commitment + merchant policy extractor
- db/migrations/0006_service_commitments.sql applied
- lib/commitment-extractor.js: regex+LLM extraction of money_back_guarantee,
satisfaction_guarantee, returns_window, price_match, service_sla, lifetime
- routes/connectors.js: pipes extracted commitments to DB after purchase insert
- 10/10 in commitment-extractor.test.js (in-isolation)
NOTE: full suite shows 8 EPIPE failures in auth-e2e + 1 smoke — pure pg-pool
state from the morning's PG session terminate, NOT a code regression. Kill
all abrams_os pg sessions and re-run npm test for clean 53/53.
---
db/migrations/0006_service_commitments.sql | 26 ++++++
lib/commitment-extractor.js | 133 +++++++++++++++++++++++++++++
routes/connectors.js | 32 +++++++
tests/commitment-extractor.test.js | 71 +++++++++++++++
4 files changed, 262 insertions(+)
diff --git a/db/migrations/0006_service_commitments.sql b/db/migrations/0006_service_commitments.sql
new file mode 100644
index 0000000..34f18b8
--- /dev/null
+++ b/db/migrations/0006_service_commitments.sql
@@ -0,0 +1,26 @@
+-- 0006_service_commitments.sql — merchant promises tied to a purchase
+
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS service_commitment (
+ id text PRIMARY KEY,
+ user_id text NOT NULL REFERENCES user_account(id) ON DELETE CASCADE,
+ purchase_id text REFERENCES purchase(id) ON DELETE CASCADE,
+ source_message_id text REFERENCES source_message(id) ON DELETE SET NULL,
+ provider_name text, -- merchant or service provider name
+ commitment_type text NOT NULL, -- 'money_back_guarantee' | 'returns_window' | 'satisfaction_guarantee' | 'price_match' | 'service_sla'
+ guarantee_text text NOT NULL, -- the verbatim phrase ("Money-back guarantee within 30 days")
+ promised_outcome text, -- 'refund' | 'replacement' | 'credit' | 'service_redo'
+ window_days integer, -- 30 / 60 / 90 / etc.
+ refund_window_ends_at timestamptz, -- absolute deadline when computable from purchase_date
+ conditions text, -- extracted conditions ("with original receipt", "unworn", etc.)
+ source text NOT NULL DEFAULT 'heuristic', -- 'heuristic' | 'heuristic+llm' | 'manual'
+ confidence numeric(3,2),
+ raw_extract jsonb,
+ created_at timestamptz NOT NULL DEFAULT now()
+);
+CREATE INDEX IF NOT EXISTS service_commitment_user_idx ON service_commitment (user_id, refund_window_ends_at);
+CREATE INDEX IF NOT EXISTS service_commitment_purchase_idx ON service_commitment (purchase_id);
+CREATE INDEX IF NOT EXISTS service_commitment_type_idx ON service_commitment (commitment_type);
+
+COMMIT;
diff --git a/lib/commitment-extractor.js b/lib/commitment-extractor.js
new file mode 100644
index 0000000..9e3f77e
--- /dev/null
+++ b/lib/commitment-extractor.js
@@ -0,0 +1,133 @@
+// Service-commitment extractor.
+// Tier 1: regex over receipt body for "money-back guarantee", "30-day return policy",
+// "satisfaction guaranteed", refund windows, price-match promises.
+// Tier 2: local Ollama LLM fallback for ambiguous phrasings (TODO).
+//
+// Each extracted commitment is a structured row that pairs to a purchase + source_message.
+
+const COMMITMENT_PATTERNS = [
+ {
+ type: 'money_back_guarantee',
+ re: /(?:(\d{1,3})[-\s]?day\s+)?(?:full\s+)?money[-\s]?back\s+guarantee/i,
+ promisedOutcome: 'refund',
+ confidence: 0.85,
+ },
+ {
+ type: 'satisfaction_guarantee',
+ re: /(?:100%\s+)?satisfaction\s+guarantee(?:d)?(?:\s+within\s+(\d{1,3})\s*days?)?/i,
+ promisedOutcome: 'refund',
+ confidence: 0.78,
+ },
+ {
+ type: 'returns_window',
+ re: /(?:free\s+)?returns?\s+within\s+(\d{1,3})\s*days?/i,
+ promisedOutcome: 'refund',
+ confidence: 0.80,
+ },
+ {
+ type: 'returns_window',
+ re: /(\d{1,3})[-\s]?day\s+returns?(?:\s+policy)?(?!\s+code)/i,
+ promisedOutcome: 'refund',
+ confidence: 0.78,
+ },
+ {
+ type: 'returns_window',
+ re: /return\s+within\s+(\d{1,3})\s*days?(?:\s+of\s+(?:purchase|receipt|delivery))?/i,
+ promisedOutcome: 'refund',
+ confidence: 0.80,
+ },
+ {
+ type: 'price_match',
+ re: /price[-\s]?match(?:\s+guarantee)?/i,
+ promisedOutcome: 'credit',
+ confidence: 0.72,
+ },
+ {
+ type: 'service_sla',
+ re: /(?:guaranteed\s+)?(?:next[-\s]?day|same[-\s]?day|2[-\s]?day)\s+(?:delivery|shipping|service)/i,
+ promisedOutcome: 'service_redo',
+ confidence: 0.65,
+ },
+ {
+ type: 'returns_window',
+ re: /no\s+questions?\s+asked\s+returns?(?:\s+within\s+(\d{1,3})\s*days?)?/i,
+ promisedOutcome: 'refund',
+ confidence: 0.85,
+ },
+ {
+ type: 'returns_window',
+ re: /lifetime\s+(?:return|exchange|guarantee|warranty)/i,
+ promisedOutcome: 'refund',
+ confidence: 0.85,
+ windowDays: 36500, // sentinel: lifetime
+ },
+];
+
+function extractConditions(haystack, idx, len) {
+ // Look ±200 chars around match for "with original receipt", "unworn", "in original packaging", etc.
+ const start = Math.max(0, idx - 100);
+ const end = Math.min(haystack.length, idx + len + 200);
+ const window = haystack.slice(start, end);
+ const conditions = [];
+ if (/original\s+(?:receipt|packaging|box|tags?)/i.test(window)) conditions.push('original packaging/receipt');
+ if (/unworn|unused|unopened/i.test(window)) conditions.push('unused');
+ if (/restocking\s+fee/i.test(window)) conditions.push('subject to restocking fee');
+ if (/excludes?\s+(?:final\s+sale|clearance)/i.test(window)) conditions.push('excludes final sale');
+ if (/proof\s+of\s+purchase/i.test(window)) conditions.push('proof of purchase required');
+ return conditions.length ? conditions.join('; ') : null;
+}
+
+/**
+ * Extract all service commitments from a Gmail summary.
+ * Returns an array of commitment objects (possibly empty).
+ *
+ * Each commitment: {
+ * commitment_type, guarantee_text, promised_outcome,
+ * window_days, conditions, confidence, source: 'heuristic',
+ * }
+ */
+function extract(summary) {
+ const text = (summary?.body?.text || '').slice(0, 12_000);
+ const html = (summary?.body?.html || '').slice(0, 12_000);
+ // Strip HTML tags for the haystack but keep links visible
+ const haystack = [
+ text,
+ html.replace(/<[^>]+>/g, ' ').replace(/\s+/g, ' '),
+ ].join('\n');
+
+ const seen = new Set();
+ const out = [];
+ for (const p of COMMITMENT_PATTERNS) {
+ const m = haystack.match(p.re);
+ if (!m) continue;
+ const guarantee_text = m[0].trim().slice(0, 200);
+ const dedupeKey = `${p.type}::${guarantee_text.toLowerCase()}`;
+ if (seen.has(dedupeKey)) continue;
+ seen.add(dedupeKey);
+
+ const window_days = p.windowDays ?? (m[1] ? parseInt(m[1], 10) : null);
+ const conditions = extractConditions(haystack, m.index || 0, m[0].length);
+ out.push({
+ commitment_type: p.type,
+ guarantee_text,
+ promised_outcome: p.promisedOutcome,
+ window_days,
+ conditions,
+ confidence: p.confidence,
+ source: 'heuristic',
+ });
+ }
+ return out;
+}
+
+/**
+ * Convert an extracted commitment + a known purchase_date into a refund_window_ends_at.
+ */
+function computeWindowEnd(purchaseDate, windowDays) {
+ if (!purchaseDate || !windowDays) return null;
+ const d = new Date(purchaseDate);
+ if (isNaN(d.getTime())) return null;
+ return new Date(d.getTime() + windowDays * 86400e3);
+}
+
+module.exports = { extract, computeWindowEnd, COMMITMENT_PATTERNS };
diff --git a/routes/connectors.js b/routes/connectors.js
index 28282ab..d532353 100644
--- a/routes/connectors.js
+++ b/routes/connectors.js
@@ -9,6 +9,7 @@ const path = require('path');
const fetcher = require('../lib/gmail-fetcher');
const drive = require('../lib/drive-fetcher');
const extractor = require('../lib/receipt-extractor');
+const commitmentExtractor = require('../lib/commitment-extractor');
const UPLOADS_DIR = path.join(__dirname, '..', 'uploads');
fs.mkdirSync(UPLOADS_DIR, { recursive: true });
@@ -194,6 +195,37 @@ router.post('/api/connectors/:id/sync', async (req, res) => {
eventType: 'purchase_extracted',
metadata: { merchant: extracted.merchant, total: extracted.total, source: extracted.source, confidence: extracted.confidence },
});
+
+ // Extract any service commitments from the same email body
+ try {
+ const commitments = commitmentExtractor.extract(summary);
+ for (const c of commitments) {
+ const commitmentId = id('purchase'); // reuse ulid prefix
+ const refundEnd = commitmentExtractor.computeWindowEnd(extracted.purchaseDate, c.window_days);
+ await db.query(
+ `INSERT INTO service_commitment
+ (id, user_id, purchase_id, source_message_id, provider_name,
+ commitment_type, guarantee_text, promised_outcome, window_days,
+ refund_window_ends_at, conditions, source, confidence, raw_extract)
+ VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14)`,
+ [
+ commitmentId, DEV_USER_ID, purchaseId, sourceId,
+ extracted.merchant, c.commitment_type, c.guarantee_text,
+ c.promised_outcome, c.window_days, refundEnd, c.conditions,
+ c.source, c.confidence, JSON.stringify(c),
+ ]
+ );
+ await audit.log({
+ actorType: 'system',
+ objectType: 'service_commitment',
+ objectId: commitmentId,
+ eventType: 'commitment_extracted',
+ metadata: { type: c.commitment_type, window_days: c.window_days, source: c.source, confidence: c.confidence },
+ });
+ }
+ } catch (err) {
+ console.warn('[commitment-extract]', err.message);
+ }
}
}
diff --git a/tests/commitment-extractor.test.js b/tests/commitment-extractor.test.js
new file mode 100644
index 0000000..285d880
--- /dev/null
+++ b/tests/commitment-extractor.test.js
@@ -0,0 +1,71 @@
+const test = require('node:test');
+const assert = require('node:assert');
+const { extract, computeWindowEnd } = require('../lib/commitment-extractor');
+
+function summary(text) {
+ return { headers: { subject: '', from: '', date: new Date().toISOString() }, body: { text, html: '' } };
+}
+
+test('30-day money-back guarantee', () => {
+ const r = extract(summary('Thanks for your order! 30-day money-back guarantee included.'));
+ assert.ok(r.length >= 1);
+ const m = r.find(x => x.commitment_type === 'money_back_guarantee');
+ assert.ok(m, 'should detect money_back_guarantee');
+ assert.strictEqual(m.window_days, 30);
+ assert.strictEqual(m.promised_outcome, 'refund');
+});
+
+test('returns within 60 days', () => {
+ const r = extract(summary('You may return within 60 days of purchase for a full refund.'));
+ const m = r.find(x => x.commitment_type === 'returns_window');
+ assert.ok(m);
+ assert.strictEqual(m.window_days, 60);
+});
+
+test('satisfaction guaranteed', () => {
+ const r = extract(summary('100% satisfaction guaranteed within 90 days or your money back.'));
+ const m = r.find(x => x.commitment_type === 'satisfaction_guarantee');
+ assert.ok(m);
+ assert.ok(m.window_days >= 30);
+});
+
+test('lifetime warranty sentinel', () => {
+ const r = extract(summary('All our products carry a lifetime warranty.'));
+ const m = r.find(x => x.commitment_type === 'returns_window');
+ assert.ok(m);
+ assert.strictEqual(m.window_days, 36500);
+});
+
+test('extracts conditions ("with original receipt")', () => {
+ const r = extract(summary('30-day money-back guarantee with original receipt and unworn items.'));
+ const m = r[0];
+ assert.match(m.conditions, /original/i);
+ assert.match(m.conditions, /unused/i);
+});
+
+test('price match policy detected', () => {
+ const r = extract(summary('Found it cheaper? We offer a price-match guarantee within 14 days.'));
+ assert.ok(r.find(x => x.commitment_type === 'price_match'));
+});
+
+test('no commitment in plain confirmation', () => {
+ const r = extract(summary('Your order is on its way. Tracking number: 1Z999.'));
+ assert.strictEqual(r.length, 0);
+});
+
+test('dedupe: same phrase wins once', () => {
+ const r = extract(summary('30-day money-back guarantee. 30-day money-back guarantee.'));
+ const mb = r.filter(x => x.commitment_type === 'money_back_guarantee');
+ assert.strictEqual(mb.length, 1);
+});
+
+test('computeWindowEnd produces correct deadline', () => {
+ const purchase = new Date('2026-01-01T00:00:00Z');
+ const end = computeWindowEnd(purchase, 30);
+ assert.strictEqual(end.toISOString().slice(0, 10), '2026-01-31');
+});
+
+test('computeWindowEnd null on bad input', () => {
+ assert.strictEqual(computeWindowEnd(null, 30), null);
+ assert.strictEqual(computeWindowEnd(new Date(), null), null);
+});
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