---
description: Bring the ECHO vault up to the current feature spec (entity index + cross-links)
allowed-tools: Bash(python3 */echo-memory/scripts/sweep.py*), Bash(python */echo-memory/scripts/sweep.py*)
---

Use the **echo-memory** skill to bring the vault up to the current spec. Run the sweep **dry-run first**, show the operator the plan, and only `--apply` on their go-ahead:

```bash
python3 "${CLAUDE_PLUGIN_ROOT}/skills/echo-memory/scripts/sweep.py"            # plan (read-only)
python3 "${CLAUDE_PLUGIN_ROOT}/skills/echo-memory/scripts/sweep.py" --apply    # write
# Windows: use `python` or `py -3` if `python3` is not on PATH.
```

The sweep (1) creates `_agent/index/`, (2) rebuilds the entity index from existing notes, (3) symmetrizes `## Related` cross-links (adds only the missing reciprocal direction — never invents new links), and (4) stamps the marker `schema_version`. It is idempotent and read-only without `--apply`. If `schema_version` is behind, run `migrate.py` first. After applying, run `/echo-health` to confirm invariants.