spotcheck: harden newestHoneypot() regex to exclude -results.json and v2 batches

fb0cf739a395f11f0f1813b9905f38285a34b7e4 · 2026-05-12 19:22:28 -0700 · steve

Previous regex /^honeypot-\d{4}/ + endsWith('.json') correctly skipped
honeypot-v2-* (because the v after the dash fails the \d{4} test) and
also coincidentally skipped *-results.json (because '-' (0x2d) sorts
before '.' (0x2e), so the main file ends up last after sort()).

That second behaviour was load-bearing-by-accident. Tightened to:
  /^honeypot-\d{4}-\d{2}-\d{2}T[\d-]+Z\.json$/
which matches only the canonical lure-batch filename shape — no
-results.json sidecars, no v2 cohort batches.

Verified picks honeypot-2026-05-12T20-36-16-324Z.json over the four
other honeypot-*.json files in data/. Cumulative spot-checks now
0/320 across 28 datapoints (5.76h slice 2-3 + slice 4-5 both 0/10).

Files touched

M spotcheck.js

Diff

commit fb0cf739a395f11f0f1813b9905f38285a34b7e4
Author: steve <steve@designerwallcoverings.com>
Date:   Tue May 12 19:22:28 2026 -0700

    spotcheck: harden newestHoneypot() regex to exclude -results.json and v2 batches
    
    Previous regex /^honeypot-\d{4}/ + endsWith('.json') correctly skipped
    honeypot-v2-* (because the v after the dash fails the \d{4} test) and
    also coincidentally skipped *-results.json (because '-' (0x2d) sorts
    before '.' (0x2e), so the main file ends up last after sort()).
    
    That second behaviour was load-bearing-by-accident. Tightened to:
      /^honeypot-\d{4}-\d{2}-\d{2}T[\d-]+Z\.json$/
    which matches only the canonical lure-batch filename shape — no
    -results.json sidecars, no v2 cohort batches.
    
    Verified picks honeypot-2026-05-12T20-36-16-324Z.json over the four
    other honeypot-*.json files in data/. Cumulative spot-checks now
    0/320 across 28 datapoints (5.76h slice 2-3 + slice 4-5 both 0/10).
---
 spotcheck.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/spotcheck.js b/spotcheck.js
index 4d419ce..6f74b51 100755
--- a/spotcheck.js
+++ b/spotcheck.js
@@ -24,7 +24,10 @@ const OUT_FILE = path.join(DATA_DIR, 'honeypot-spotcheck.jsonl');
 
 function newestHoneypot() {
   if (process.env.HONEYPOT_BATCH) return path.resolve(process.env.HONEYPOT_BATCH);
-  const files = fs.readdirSync(DATA_DIR).filter((f) => /^honeypot-\d{4}/.test(f) && f.endsWith('.json'));
+  // Pick v1 lure batches only:
+  //   - filename starts with honeypot-YYYY-...  (excludes honeypot-v2-*)
+  //   - ends in -<ms>Z.json                     (excludes -results.json sidecars)
+  const files = fs.readdirSync(DATA_DIR).filter((f) => /^honeypot-\d{4}-\d{2}-\d{2}T[\d-]+Z\.json$/.test(f));
   if (!files.length) throw new Error('no honeypot-*.json batch found in data/');
   files.sort();
   return path.join(DATA_DIR, files[files.length - 1]);

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