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---
name: memory-sync
description: Keep memory warm and small. Hydrate at start, append notes at end.
version: 1.0.0
allowed-tools: [read, write, edit, bash, grep]
triggers:
- "memory"
- "remember"
- "context"
metadata:
category: memory
---
# Memory sync
Keeps sessions from starting cold.
## Layout
```
memory/
MEMORY.md # curated, always loaded, keep under 2k
SOUL.md # who the agent is
USER.md # who you are
sessions/ # raw per-session notes, cleaned up after ~30d
decisions/ # short ADRs
tiers/
hot.md # always loaded
warm.md # loaded on keyword
cold/ # explicit read only
```
## Lifecycle
**Start**: read `MEMORY.md` and `tiers/hot.md`. Maybe `warm.md` if the task matches. Don't read `sessions/` unless you're digging into history. Should be under 15s total.
**End**: run `harness memory sync "..."` with what you learned (it appends + re-prunes to budget).
## Tips
- `MEMORY.md` is curated, not append only. Keep it under 2k tokens, edit surgically.
- If you considered 2+ approaches and picked one, write a short `decisions/ADR-###.md`.
- No secrets in memory, it gets redacted anyway.
Commands:
```bash
harness memory show
harness memory edit
harness memory prune
harness memory sync "note"
```
