name	memory-hygiene
description	Audit and update Claude memory files after PRs or architecture changes. Use after merging PRs, deleting files, or changing architecture.
allowed-tools	Read, Edit, Write, Glob, Grep

Memory Hygiene

Audit and update Claude's private memory files to prevent stale context.

Memory File Locations

~/.claude/projects/-Users-arthurfantaci-Projects-requirements-graphrag-api/
├── CLAUDE.md        # Instructions (~150 lines max)
└── memory/
    └── MEMORY.md    # Learnings (~100 lines max)

Audit Checklist

1. Check for Deleted File References

# Extract file paths mentioned in memory files
grep -oE '[a-zA-Z_/]+\.(py|ts|md)' ~/.claude/projects/-Users-arthurfantaci-Projects-requirements-graphrag-api/CLAUDE.md

For each path found, verify the file still exists. Remove references to deleted files.

2. Verify Architecture Section

Read CLAUDE.md Architecture section. Compare against actual directory structure:

ls -la backend/src/requirements_graphrag_api/core/
ls -la backend/src/requirements_graphrag_api/core/agentic/

Update if structure has changed.

3. Update Recent PRs Table

In MEMORY.md, keep only the last 5-10 PRs. Remove older entries. Format:

| PR | Summary |
|----|---------|
| #123 | Brief description |

4. Check Line Counts

CLAUDE.md should be ≤150 lines
MEMORY.md should be ≤100 lines

wc -l ~/.claude/projects/-Users-arthurfantaci-Projects-requirements-graphrap-api/CLAUDE.md
wc -l ~/.claude/projects/-Users-arthurfantaci-Projects-requirements-graphrap-api/memory/MEMORY.md

If over limit, consolidate or archive old content.

5. Verify Patterns Are Still Valid

Review "Data Flow Gotchas" and "Patterns" sections. If a pattern was fixed or changed, update or remove it.

When to Run This Skill

After merging a PR that changes architecture
After deleting files or modules
After completing a major initiative
When context feels stale or Claude makes outdated suggestions
Monthly hygiene check

Output

After running, report:

Files checked
Stale references removed
Sections updated
Current line counts