[cache-strategy] Fix cache miss in Code Scanning Fixer

[github-actions]

Summary

Code Scanning Fixer declared cache-memory: true, but both analyzed runs in the last 24 hours showed cache-miss indicators and did not reach an Update cache-memory step. The workflow prompt also matches a volatile cache-key pattern without restore-key fallbacks.

Evidence

Observed runs in the last 24 hours

• 33601555914 — failure — Update cache-memory step: missing
• 33632778572 — failure — Update cache-memory step: missing

Prompt-level cache signals:

• missing_data with reason cache_memory_miss
• direct cache_memory_miss references
• references to /tmp/gh-aw/cache-memory/

Historical pattern from cache-memory index

• 17 cache-enabled runs analyzed in the rolling 30-day window
• 14-day miss rate: 12%
• Last recorded cache hit date: 2026-09-01
• Today: 2/2 runs were misses

Why this matters

This workflow appears to be configured for persistent state, but current runs are not benefiting from it. Failing before cache update also means the next run starts cold again, compounding cost and repeated investigation work.

Recommended fix

1. Use a stable cache key or add restore-key fallbacks if the primary key includes a run-specific suffix.
2. Load prior state from /tmp/gh-aw/cache-memory/ before beginning expensive analysis.
3. Write back incremental state even when partial analysis succeeds.
4. Add explicit cache hit/miss logging to distinguish true cold starts from workflow failures.

Severity

🔴 Critical — volatile key pattern without restore fallback on a cache-enabled workflow, with consecutive misses in the last 24 hours.

Generated by 📊 Daily Cache Strategy Analyzer · pi · gpt54 · 42.1 AIC · ⌖ 9.27 AIC · ⊞ 8K · ◷

• expires on Sep 9, 2026, 10:50 AM UTC-08:00