#22124: fix(agents): remove non-existent WORKFLOW_AUTO.md from post-compaction audit

## Summary - **Bug**: Post-compaction audit requires reading `WORKFLOW_AUTO.md`, but this file does not exist in the workspace - **Root cause**: `DEFAULT_REQUIRED_READS` in `post-compaction-audit.ts` hardcodes `WORKFLOW_AUTO.md` which was never created - **Fix**: Remove `WORKFLOW_AUTO.md` from the default required reads list Fixes #21957 ## Problem After auto-compaction, the post-compaction read audit checks whether the agent has read certain required startup files. `DEFAULT_REQUIRED_READS` includes `WORKFLOW_AUTO.md`, but this file: 1. Does not exist anywhere in the repository 2. Is not listed in the canonical workspace file documentation (`docs/concepts/agent-workspace.md`) 3. Was never created as part of the workspace setup This causes the audit to always fail for `WORKFLOW_AUTO.md`, generating a warning that tells the agent to read a non-existent file — leading to a confusing loop where the agent tries and fails to read it. **Before fix:** Input: Agent reads all real workspace files (`AGENTS.md`, `SOUL.md`, `memory/2026-02-21.md`, etc.) Output: Audit fails with `missingPatterns: ["WORKFLOW_AUTO.md"]` and warns agent to read it ## Changes - `src/auto-reply/reply/post-compaction-audit.ts` — Remove `WORKFLOW_AUTO.md` from `DEFAULT_REQUIRED_READS` - `src/auto-reply/reply/post-compaction-audit.test.ts` — Update tests to reflect removal; add regression tests for #21957 **After fix:** Input: Agent reads daily memory file (`memory/2026-02-21.md`) Output: Audit passes, no spurious warning about non-existent file ## Test plan - [x] New test: regression #21957 — audit does not require `WORKFLOW_AUTO.md` - [x] New test: regression #21957 — audit warning never mentions `WORKFLOW_AUTO.md` - [x] All 16 existing + new tests pass - [x] Related `post-compaction-context.test.ts` (10 tests) still passes - [x] Format check passes ## Effect on User Experience **Before:** After context compaction, the agent receives a warning to read `WORKFLOW_AUTO.md`. The agent attempts to read it, fails (file not found), and may retry or get confused. **After:** The audit only checks for files that actually exist in the workspace (daily memory files). No spurious warnings after compaction. <!-- greptile_comment --> <h3>Greptile Summary</h3> Removes the non-existent `WORKFLOW_AUTO.md` from the `DEFAULT_REQUIRED_READS` array in the post-compaction audit, fixing a bug where agents were warned to read a file that was never created. - Removed `"WORKFLOW_AUTO.md"` from `DEFAULT_REQUIRED_READS` in `post-compaction-audit.ts`, leaving only the daily memory file regex pattern - Updated existing tests to reflect that only `memory/*.md` is required, and added two regression tests ensuring `WORKFLOW_AUTO.md` is never required or mentioned in audit warnings - Added changelog entry documenting the fix <h3>Confidence Score: 5/5</h3> - This PR is safe to merge — it removes a reference to a file that never existed, eliminating a guaranteed audit failure. - The change is minimal and well-targeted: one line removed from a constant array, with comprehensive test updates and regression tests. The removed string literal referenced a file that was never committed to the repository. The function signature and behavior are otherwise unchanged, and the consuming code in agent-runner.ts requires no modifications. - No files require special attention. _{Last reviewed commit: faeb0d6} <!-- greptile_other_comments_section --> <!-- /greptile_comment -->