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 skills/garrytan/gbrain/maintainnpx skills add garrytan/gbrain --skill maintaingit clone --depth 1 https://github.com/garrytan/gbrainWrote 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/skills/garrytan/gbrain/maintain)<a href="https://agentmods.dev/skills/garrytan/gbrain/maintain"><img src="https://agentmods.dev/badge/skills/garrytan/gbrain/maintain.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 | $0.00044 | $0.05310 |
| Opus 5 | $0.00022 | $0.02655 |
| Sonnet 5 | $0.00009 | $0.01062 |
| Haiku 4.5 | $0.00004 | $0.00531 |
Grade A, and why
maintain 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 510 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Maintain Skill
Periodic brain health checks and cleanup.
Contract
This skill guarantees:
- All health dimensions are checked (stale, orphan, dead links, cross-refs, backlinks, citations, filing, tags)
- Each issue found has a specific fix action
- Back-link iron law is enforced
- Citation format is validated against the standard
- Results are reported with counts per dimension
Phases
Autonomous path (v0.36.4.0) — when you want to reach a target score
If the user asks "get my brain to 90/100" or "fix what's broken", prefer the one-command loop over walking each dimension by hand:
gbrain doctor --remediation-plan --json # preview what would run
gbrain doctor --remediate --yes --target-score 90 --max-usd 5
--remediation-plan prints a dependency-ordered list (sync before extract,
embed after consolidate, etc.) with per-step est_seconds and est_usd_cost.
--remediate walks the plan, submitting each step as a Minion job, re-checking
score between every step. --max-usd N is a hard cost cap — submission refuses
when the plan would exceed the cap (prevents synthesize loops from burning
Anthropic credits unattended).
When the target score is unreachable for the brain (empty brain with no entity
pages → graph_coverage caps at 70; unconfigured embedding key → caps at 60),
the command bails with a list of what's missing rather than looping.
Use the per-dimension walk below (Phase 2 onward) when:
- The user explicitly asks for a dimension-by-dimension audit
- You're investigating why score is stuck below
--remediate's ceiling - A specific dimension needs manual judgment that the auto path skips
Manual path
- Run health check. Check gbrain health to get the dashboard.
- Check each dimension:
Stale pages
Pages where compiled_truth is older than the latest timeline entry. The assessment hasn't been updated to reflect recent evidence.
- Check the health output for stale page count
- For each stale page: read the page from gbrain, review timeline, determine if compiled_truth needs rewriting
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.
- yesterday Changed · +30 lines 987b470e34a6
- 4d ago First seen · 480 lines · 44 tokens per session scan A de3d9a6ce414
maintain is a skill published in the GitHub repository garrytan/gbrain (29,539 stars, last pushed today), licensed MIT. It adds 44 tokens to every session and 5,310 once invoked, about $0.0002 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 2026-08-30.
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