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fix(go-fan): specify explicit cache file path to suppress false cache_memory_miss alerts#29485

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pelikhan merged 2 commits intomainfrom
copilot/fix-cache-memory-configuration
May 1, 2026
Merged

fix(go-fan): specify explicit cache file path to suppress false cache_memory_miss alerts#29485
pelikhan merged 2 commits intomainfrom
copilot/fix-cache-memory-configuration

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Copilot AI commented May 1, 2026

The Go Fan workflow was creating spurious failure issues on every first run (or after cache expiration) because the prompt lacked an explicit cache file path. The platform's cache_memory_prompt.md instructs agents to call missing_data with reason: "cache_memory_miss" whenever expected data isn't found—and handle_agent_failure.cjs unconditionally treats this signal as a misconfiguration, creating a failure issue even when the agent concluded successfully.

Changes

  • go-fan.md: Pins the round-robin state to an explicit file path (/tmp/gh-aw/cache-memory/state.json) with a documented JSON schema; explicitly tells the agent that a missing file is a first-run/expiry scenario (no missing_data call), while a malformed file still triggers cache_memory_miss to surface genuine misconfigurations
To load the state:
1. Check whether `/tmp/gh-aw/cache-memory/state.json` exists:
   - If the file **does not exist**, this is the first run — start fresh (no `missing_data` call needed)
   - If the file **exists**, read it and extract `last_reviewed_module` and `reviewed_modules`
   - If the file **exists but is malformed**, call `missing_data` with `data_type: "cache_memory"` and `reason: "cache_memory_miss"`

This aligns with the guidance in cache_memory_miss.md: "ensure the agent prompt correctly references files inside the cache directory."

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

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github-actions Bot commented May 1, 2026

Hey @copilot 👋 — thanks for picking up this cache-memory miss issue in the Go Fan workflow! A few things need to be addressed before this PR is ready for review:

  • No changes yet — the diff is empty (0 files changed, 0 additions, 0 deletions). The PR is still in WIP state with no actual code modifications committed.
  • No description of work done — the PR body only contains the original issue content. Once changes are made, please replace or supplement it with a summary of what was changed and why (e.g. which cache-memory config file was corrected and how).
  • No tests — once the fix is in place, consider adding or updating tests that exercise the cache-memory path to prevent regressions.

If you'd like a hand completing this, you can assign this prompt to your coding agent:

Debug and fix the cache memory configuration issue in the Go Fan workflow.

Context:
- The workflow run that failed: https://github.com/github/gh-aw/actions/runs/25208126689
- The agent reported `cache_memory_miss` even though cache-memory is configured.
- Cache files are stored at `/tmp/gh-aw/cache-memory/` (default) or `/tmp/gh-aw/cache-memory-{id}/` for additional caches.

Steps:
1. Follow the debug guide at https://raw.githubusercontent.com/github/gh-aw/main/debug.md
2. Identify the misconfigured file path reference in the Go Fan workflow prompt.
3. Correct the cache-memory path reference so the agent can locate the correct file.
4. Add or update tests to cover the fixed cache-memory lookup.
5. Update the PR body with a clear description of what was changed and why.

Generated by Contribution Check · ● 1M ·

…memory_miss alerts

Agent-Logs-Url: https://github.com/github/gh-aw/sessions/fd9ee9a0-c541-4261-8bfd-cfc685b8d509

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
Copilot AI changed the title [WIP] Fix cache memory configuration issue in Go Fan workflow fix(go-fan): specify explicit cache file path to suppress false cache_memory_miss alerts May 1, 2026
Copilot AI requested a review from pelikhan May 1, 2026 09:44
@pelikhan pelikhan marked this pull request as ready for review May 1, 2026 09:45
Copilot AI review requested due to automatic review settings May 1, 2026 09:45
@pelikhan pelikhan merged commit b470e73 into main May 1, 2026
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@pelikhan pelikhan deleted the copilot/fix-cache-memory-configuration branch May 1, 2026 09:45
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Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Updates the Go Fan workflow prompt to pin round-robin cache state to a specific file path and clarify when a cache miss is expected (first run/expiry) versus an actual misconfiguration.

Changes:

  • Defines a concrete cache state location at /tmp/gh-aw/cache-memory/state.json and documents its JSON schema.
  • Clarifies state-loading behavior: missing file is a normal first-run/expiry case; malformed JSON triggers missing_data with cache_memory_miss.
  • Updates round-robin instructions to reference the loaded reviewed_modules state and how to reset it.
Show a summary per file
File Description
.github/workflows/go-fan.md Documents an explicit cache state file path + schema and clarifies cache miss vs malformed state handling to prevent spurious failure issues.

Copilot's findings

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  • Files reviewed: 1/1 changed files
  • Comments generated: 3

Comment on lines +86 to +89
To load the state:
1. Check whether `/tmp/gh-aw/cache-memory/state.json` exists:
- If the file **does not exist**, this is the first run — start fresh (no `missing_data` call needed)
- If the file **exists**, read it and extract `last_reviewed_module` and `reviewed_modules`
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These steps describe filesystem operations (exists/read) but don’t explicitly say they must be performed via the cache-memory tool. Since the goal is to keep state inside the cache directory, consider explicitly instructing the agent to use the cache-memory tool APIs to check/read this path (rather than normal workspace file I/O), so the state is reliably persisted/restored by the caching layer.

Suggested change
To load the state:
1. Check whether `/tmp/gh-aw/cache-memory/state.json` exists:
- If the file **does not exist**, this is the first run — start fresh (no `missing_data` call needed)
- If the file **exists**, read it and extract `last_reviewed_module` and `reviewed_modules`
To load the state, use the **cache-memory tool APIs** for both the existence check and the read of **`/tmp/gh-aw/cache-memory/state.json`**. Do **not** use normal workspace or bash filesystem I/O for this path.
1. Check via the cache-memory tool whether `/tmp/gh-aw/cache-memory/state.json` exists:
- If the file **does not exist**, this is the first run — start fresh (no `missing_data` call needed)
- If the file **exists**, read it **via the cache-memory tool** and extract `last_reviewed_module` and `reviewed_modules`

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Comment on lines +249 to +252
Save your progress to **`/tmp/gh-aw/cache-memory/state.json`**:
- Set `last_reviewed_module` to today's module path
- Add an entry to `reviewed_modules`: `{"module": "<module-path>", "reviewed_at": "<ISO 8601 date>"}`
- Remove entries older than 7 days from `reviewed_modules`
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The instructions don’t mention ensuring the parent directory exists before writing state.json. If the cache directory isn’t pre-created (e.g., first run, cache eviction), writes may fail. Consider adding an explicit step to create /tmp/gh-aw/cache-memory/ (or ensure it exists via the cache-memory tool) before saving the file.

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- Keep the cache for 7 days - remove entries older than 7 days from `reviewed_modules`
Save your progress to **`/tmp/gh-aw/cache-memory/state.json`**:
- Set `last_reviewed_module` to today's module path
- Add an entry to `reviewed_modules`: `{"module": "<module-path>", "reviewed_at": "<ISO 8601 date>"}`
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As written, repeatedly 'adding an entry' can create multiple entries for the same module within the 7-day window, which can unnecessarily grow the file and complicate lookups. Consider specifying that reviewed_modules should be de-duplicated by module (update the existing module’s reviewed_at if present) in addition to pruning entries older than 7 days.

Suggested change
- Add an entry to `reviewed_modules`: `{"module": "<module-path>", "reviewed_at": "<ISO 8601 date>"}`
- Ensure `reviewed_modules` is de-duplicated by `module`: if today's module already has an entry, update its `reviewed_at` to the current ISO 8601 date; otherwise add `{"module": "<module-path>", "reviewed_at": "<ISO 8601 date>"}`

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