Borrowing it
Nothing to install: this file belongs to aidemd-mcp/server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/aidemd-mcp/server/main/.claude/skills/brain/SKILL.mdgit clone --depth 1 https://github.com/aidemd-mcp/serverWrote 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/aidemd-mcp/server/brain)<a href="https://agentmods.dev/skills/aidemd-mcp/server/brain"><img src="https://agentmods.dev/badge/skills/aidemd-mcp/server/brain/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/aidemd-mcp/server/brain"><img src="https://agentmods.dev/badge/skills/aidemd-mcp/server/brain.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 | $0.00165 | $0.00745 |
| Opus 5.5 | $0.00066 | $0.00298 |
| Sonnet 5.5 | $0.00033 | $0.00149 |
| Haiku 4.5 | $0.00016 | $0.00075 |
Grade A, and why
brain 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 19d 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.
How it starts
The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
brain — Signpost to the Brain
Pointer skill. The brain interface lives in the /aide:brain slash command —
this skill exists so any agent that needs brain access discovers it.
What the brain is
The brain is a knowledge store that lives external to the project and outside any single codebase. It can be a personal store for one developer or a shared store an entire team points at — when teammates wire their agents to the same brain, every member's agent reads and writes against the same playbook, research, project context, and conventions. That makes it the authoritative source for anything the team has agreed on or learned, and the place where new findings become reusable across projects and across people.
Typical contents: domain research, the coding playbook, project history and
context, journal logs, environment config, identity, references. AIDE's research
phase writes to it; the strategist and architect phases read from it; explorer
agents draw on it for context the code doesn't carry. The brain is a logical
surface — the underlying backend is an implementation detail the /aide:brain
command abstracts.
When to invoke /aide:brain
Trigger when the current task needs knowledge that isn't in the working directory:
- Unfamiliar domain. You're about to make a decision in a domain you have no loaded context for (e.g. cold email tactics, local SEO scoring, a vendor API quirk).
- Shared context referenced. The user says "check the brain," "what does the team do for X," "we already researched this," or names a project / research area / convention without giving you the file.
- Saving findings. You produced research, a decision, or a pattern the team will need again — synthesis the brain should own, not the repo.
What /aide:brain does
It discovers the brain's root navigation surface first — the brain owns its own structure and navigation rules — then follows those rules to find and return content (or write what it's been asked to save).
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.
- 19d ago Changed · +1 lines · +20 tokens per session 5d5d05d6bf0b
- 2mo ago First seen · 69 lines · 145 tokens per session scan A f972646bc478
brain is a skill published in the GitHub repository aidemd-mcp/server (4 stars, last pushed 2d ago), licensed MIT. It adds 165 tokens to every session and 745 once invoked, about $0.0007 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 2026-08-31.
Other skills, from other repositories
memorix-memory
Use when prior workspace context, past decisions, solved bugs, handoff state, or durable project knowledge would help a coding task.
memorix
Use when Claude Code needs Memorix shared memory, reasoning, Git Memory, mini-skills, session handoff, orchestration coordination, or integration troubleshooting.
memorix-mini-skills
Use when durable project knowledge, gotchas, workflows, or repeated fixes should become reusable agent guidance instead of ordinary memory.
memorix-git-memory
Use when the task depends on commit history, what changed, when a fix shipped, or linking engineering evidence to reasoning memory.
memorix-reasoning
Use when a technical decision, trade-off, rejected alternative, architecture rationale, or design risk should be recorded or recovered.
memorix-sessions
Use when resuming work, preparing handoff context, binding an HTTP control-plane project, or deciding whether sessionstart is useful.