Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add commands/open-latch/latch/latch-healgit clone --depth 1 https://github.com/open-latch/latchWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/commands/open-latch/latch/latch-heal)<a href="https://agentmods.dev/commands/open-latch/latch/latch-heal"><img src="https://agentmods.dev/badge/commands/open-latch/latch/latch-heal.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00011 | $0.00499 |
| Opus 5 | $0.00005 | $0.00249 |
| Sonnet 5 | $0.00002 | $0.00100 |
| Haiku 4.5 | $0.00001 | $0.00050 |
Grade A, and why
latch-heal scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Run the nightly heal against the per-project knowledge base under
<KB_HOME>. Two phases:
- Integrity — clean up orphan edges and sync the
vec_nodesvirtual table with the mainnodestable (delete orphans, backfill missing). - Contradiction sweep — for every non-stale node with an embedding,
find near-duplicates at cosine similarity ≥ 0.70 (the range the on-insert
heal deferred). For each pair:
- Skip if an edge already exists between them (idempotent — prior sweeps' decisions stick).
- Apply three-pass arbitration:
- Pass A (recency): newer wins if age diff > 30d AND newer is still fresh (updated in last 30d).
- Pass B (ref_count): the dominant side wins if ratio ≥ 3 AND both have been referenced at least once.
- Pass C (LLM): only invoked when A and B are inconclusive. Uses the selected maintenance model backend (Claude by default; adapter env can select Codex) and counts against the daily budget.
- Verdict: supersede marks loser stale + adds a
supersedesedge. keep_both adds arelated_toedge so this pair is skipped on future sweeps. - If the heal budget is exhausted before arbitration, leave the pair
untouched and edge-free. Record a structural
heal_deferredrow with the pair ids, similarity, and tier so the same pair can be audited and retried automatically on a later run.
Run with the Bash tool:
python "<KB_HOME>/src/latch/pipeline/maintenance.py" nightly "$(pwd)"
Report the JSON summary: examined, collisions, superseded, kept_both,
deferred, per-path counts (recency / ref_count / llm / deferred), and
budget_blocked if any collisions were left pending because the daily cap was
hit. Budget-blocked pairs do not receive an edge and remain eligible for the
next heal run.
If anything fails, check <KB_HOME>/maintenance.log.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- today Changed 85f0c81c8d9c
- 4d ago First seen · 44 lines · 11 tokens per session scan A b06422033954
latch-heal is a command published in the GitHub repository open-latch/latch (9 stars, last pushed yesterday), licensed Apache-2.0. It adds 11 tokens to every session and 499 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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