[cache-strategy] Cache Strategy Analysis - 2026-10-18

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Cache Strategy Analysis Report

Date: 2026-10-18
Runs Analyzed: 71 cache-enabled runs from 2026-10-17 18:41 UTC through 2026-10-18 18:41 UTC
Workflows with cache-memory: 53

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Executive Summary

The scan recorded 34 confirmed cache reads and 5 explicit cache misses. All five misses came from AI Moderator reads of /tmp/gh-aw/cache-memory/spam-log.json; the workflow uses a stable owner-based key. A successful write appears in run §39133903112, but the later run §39147836594 still received ENOENT. The known-issues map already tracks this as #aw_aimod, so no duplicate issue was created.

Daily Go Test Parallelizer had 11 confirmed reads of its saved cursor across 12 cache-enabled runs; the remaining run skipped the agent job. No other new issue met an evidence-based threshold. The 14-day miss rate is unavailable because cache history is missing for October 14–15.

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Findings

Severity	Workflow	Miss Streak	Miss Rate (14d)	Root Cause	Issue
Below threshold; tracked	AI Moderator	1 day (5 runs)	n/a; history incomplete	All five reads of spam-log.json returned ENOENT; a successful write was not restored on a later run	#aw_aimod (existing)

🔴 Critical Issues

None. No volatile run ID cache key without a restore fallback was observed.

🟠 High Priority

None newly identified. The repeated AI Moderator miss is already tracked.

🟡 Medium Priority

None newly identified. The incomplete 14-day history prevents rate-based escalation.

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Healthy Workflows

Workflow	Cache Hit Rate (14d)	Last Miss
Daily Go Test Parallelizer	n/a; 11 confirmed reads in this window, 1 agent job skipped	No explicit miss observed

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Watch Item

Daily Project Performance Summary imports the shared trending-charts-simple.md cache configuration, but the available runs on October 16 and 17 did not read or write /tmp/gh-aw/cache-memory/ while regenerating a 90-day report. The recorded sessions are §38964548077 and §39067922884. This may be an unused cache import; the available history does not cover seven consecutive days, so it was not escalated. If the import is intended to retain chart history, the workflow should read and append that history; otherwise remove the unused cache configuration.

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Issues Created Today

No new issues created. AI Moderator is already listed in known-issues.json as #aw_aimod; other observations did not meet the confirmed thresholds.

💾 Cache Memory Summary

• Total workflows tracked: 69
• Runs recorded (last 30d): 184
• Cache memory location: /tmp/gh-aw/cache-memory/cache-strategy/
• Pruned records older than: 2026-09-18
• 14-day history gap: No records for 2026-10-14 or 2026-10-15
• Session coverage: Four completed cache-enabled runs lacked a usage session artifact. One had a successful agent job and three had the agent job skipped after activation failure; none was treated as a cache miss. The current analyzer run is still in progress, and its cache reads were observed directly.

Selected Failure Investigation Runs Reviewed

The cached summaries for all five selected runs were checked. ESLint Miner §39093882814 was the only cache-enabled workflow in that selection; its agent job succeeded, but its usage session artifact was missing. Engine Conformance Copilot §39115709891, Issue Monster §39120173514, Smoke Copilot Routed Claude §39148386697, and Daily Container Image Security Scan §39100882094 did not declare cache-memory. Their failures were excluded from cache findings.

References: §39147836594 · §39133903112 · §39154765378

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Report generated by the Daily Cache Strategy Analyzer

Generated by 📊 Daily Cache Strategy Analyzer · codex · gpt60 · 11.3 AIC · ⌖ 0.4 AIC · ⊞ 18.1K · ◷

• expires on Oct 19, 2026, 10:57 AM UTC-08:00

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This discussion has been marked as outdated by Daily Cache Strategy Analyzer.

A newer discussion is available at Discussion #70339.