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 skills add coco-research/coco --skill brain-wikigit clone --depth 1 https://github.com/coco-research/cocoWrote 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/coco-research/coco/brain-wiki)<a href="https://agentmods.dev/skills/coco-research/coco/brain-wiki"><img src="https://agentmods.dev/badge/skills/coco-research/coco/brain-wiki/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/coco-research/coco/brain-wiki"><img src="https://agentmods.dev/badge/skills/coco-research/coco/brain-wiki.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00051 | $0.03123 |
| Opus 5.5 | $0.00020 | $0.01249 |
| Sonnet 5.5 | $0.00010 | $0.00625 |
| Haiku 4.5 | $0.00005 | $0.00312 |
Grade A, and why
brain:wiki 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 1mo ago.
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.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 1mo ago Changed · +3 lines · +19 tokens per session 345a61057f69
- 2mo ago First seen · 399 lines · 32 tokens per session scan A 316c0060916f
brain:wiki is a skill published in the GitHub repository coco-research/coco (797 stars, last pushed today), with no licence file. It adds 51 tokens to every session and 3,123 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-03.
Other skills, from other repositories
handoff
Write or resume a session handoff between AI tools.
memory-curator
Curate this tool's auto memory. Use when the memory index is near its load limit or the stored notes look duplicated or stale.
shared-memory
Recall or curate the project memory that every AI coding tool shares.
llm-wiki
Maintain a personal team knowledge base using the LLM Wiki pattern — incremental ingest, query, and lint operations on a layered wiki architecture.
project-compass
Map the tribal knowledge of a codebase into per-area COMPASS.md files — the why, the gotchas, and how each area connects — for existing repos and as they grow. Use when the user says "map this codebase", "generate compass files", "refresh the compass", or after a significant area changes.
working-set-snapshot
Preserve curated session state across context compaction. The agent maintains a short working-set file (doing / decided / blocked / next); a hook fires at the pre-compaction boundary, blocks a bounded number of times until the file exists, snapshots it with a content hash and cheap boundary facts, then warns if the…