161 lines
5.0 KiB
Markdown
161 lines
5.0 KiB
Markdown
---
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name: health
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description: Diagnoses mem0 connectivity, API key validity, and memory read/write functionality. Use when memory operations fail, searches return empty, add_memory errors occur, MCP connection drops, or to verify the plugin is working correctly.
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---
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# Mem0 Health Check
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Run a diagnostic check on the mem0 plugin. Useful for troubleshooting.
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## Execution
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Run ALL checks, then display a single summary. Do not stop on the first failure.
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### Check 1: API key
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```bash
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_KEY="${MEM0_API_KEY:-${CLAUDE_PLUGIN_OPTION_MEM0_API_KEY:-}}"
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[ -n "$_KEY" ] && echo "${_KEY:0:6}..." || echo "NOT_SET"
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```
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- If `NOT_SET`: FAIL — "No API key configured"
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- If set: PASS — the command already prints only the first 6 chars
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### Check 2: Identity resolution
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Resolve identity using the plugin's own resolver scripts to match what hooks use:
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```bash
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SCRIPT_DIR="${CLAUDE_PLUGIN_ROOT:-${CODEX_PLUGIN_ROOT:-${CURSOR_PLUGIN_ROOT:-}}}/scripts"
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source "$SCRIPT_DIR/_identity.sh" 2>/dev/null
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echo "user_id=${MEM0_RESOLVED_USER_ID:-}"
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echo "project_id=${MEM0_PROJECT_ID:-}"
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echo "branch=${MEM0_BRANCH:-}"
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```
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If `CLAUDE_PLUGIN_ROOT` is not available, fall back to:
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- `user_id`: from `MEM0_USER_ID` or `$USER`
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- `project_id`: from `MEM0_PROJECT_ID` or check `~/.mem0/project_map.json` for `$PWD`
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- `branch`: from `git branch --show-current`
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PASS if all three are non-empty. WARN if any falls back to defaults.
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### Check 3: MCP server connectivity
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Call `search_memories` with:
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- `query="health check"`
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- `filters={"AND": [{"user_id": "<active_user_id>"}, {"app_id": "<active_project_id>"}]}`
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- `top_k=1`
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- If returns successfully (even empty): PASS
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- If errors: FAIL — show the error message
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### Check 4: Memory write capability
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Call `add_memory` with:
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- `text="Health check probe — safe to delete."`
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- `user_id=<active_user_id>`
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- `app_id=<active_project_id>`
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- `metadata={"type": "health_check", "probe": true}`
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- `infer=False`
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The response returns `event_id` (v3 writes are async). Call `get_event_status(event_id=<event_id>)` to check processing.
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- If status is `SUCCEEDED`: PASS — extract the memory ID from the event result, then call `delete_memory` with that ID to clean up.
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- If status is `PENDING` after 5 seconds: PASS (write accepted, processing delayed)
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- If errors: FAIL — show the error.
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### Check 5: Session stats tracker
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Check if the session stats file exists and is readable:
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```bash
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STATS_FILE="/tmp/mem0_session_stats_${USER}.json"
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if [ -f "$STATS_FILE" ] && python3 -c "import json; json.load(open('$STATS_FILE'))" 2>/dev/null; then
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echo "OK"
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else
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echo "FAIL"
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fi
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```
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This file is created by the SessionStart hook and updated by PostToolUse hooks throughout the session. If it doesn't exist, the session hooks may not have fired yet — try sending a message first, then recheck.
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### Display
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```
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## mem0 health
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PASS API Key m0-dVe...
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PASS Identity user=kartik, project=mem0, branch=main
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PASS MCP Connection 142ms
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PASS Write/Read write + delete OK
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PASS Session Tracker stats file active
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All checks passed.
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```
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If any check fails, add a `## Troubleshooting` section with specific fix steps for each failure.
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## Extended mode: Memory Quality Analysis
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When invoked with `--deep` (e.g., `/mem0:health --deep`), run the standard 5 checks above **plus** a memory quality scan.
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### Quality Check 1: Duplicates
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Call `get_memories` with `filters={"AND": [{"user_id": "<active_user_id>"}, {"app_id": "<active_project_id>"}]}`, `page_size=200`. Compare all pairs within the same `metadata.type` group for high textual overlap (shared nouns/keywords > 60%). Report:
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```
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Potential duplicates: <N> pairs
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[mem0:<id1>] ≈ [mem0:<id2>] — both about "<shared topic>"
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```
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### Quality Check 2: Stale memories
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Flag memories where:
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- `metadata.type` is `session_state` or `compact_summary` AND older than 90 days
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- `metadata.confidence` < 0.3 AND older than 30 days
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```
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Stale candidates: <N>
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[mem0:<id>] — session_state, 142d old
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```
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### Quality Check 2b: Low-confidence memories
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Flag memories where `metadata.confidence` < 0.5 (regardless of age). Report separately from stale:
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```
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Low-confidence memories: <N>
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[mem0:<id>] — confidence=0.3, "<content preview>"
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```
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### Quality Check 3: Contradictions
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Within each `metadata.type` group, flag pairs that assert opposing facts about the same topic. Use semantic judgment — look for negation patterns, conflicting tool/framework choices, or reversed decisions.
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```
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Possible contradictions: <N>
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[mem0:<idA>] vs [mem0:<idB>] — conflicting on "<topic>"
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```
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### Quality Check 4: Orphan memories
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Memories with no `metadata.type` set, or with `metadata.type` not in the 17 known coding categories. These were likely written without proper tagging.
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```
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Untagged/orphan memories: <N>
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```
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### Quality summary
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```
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## Memory Quality
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Duplicates: <N> · Stale: <N> · Contradictions: <N> · Orphans: <N>
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```
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If all counts are 0: `Memory quality: clean.`
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If any non-zero: append `Run /mem0:dream to fix.`
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To fix issues found by `--deep`, run `/mem0:dream` for automated consolidation (merges, prunes, conflict resolution).
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