Borrowing it
Nothing to install: this file belongs to cyberbird2048/gbrainmcp-clean. 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/cyberbird2048/gbrainmcp-clean/main/AGENTS.mdgit clone --depth 1 https://github.com/cyberbird2048/gbrainmcp-cleanWrote 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/instructions/cyberbird2048/gbrainmcp-clean/agents-md)<a href="https://agentmods.dev/instructions/cyberbird2048/gbrainmcp-clean/agents-md"><img src="https://agentmods.dev/badge/instructions/cyberbird2048/gbrainmcp-clean/agents-md.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 5.1 | $0.01416 | $0.01416 |
| Opus 5 | $0.00708 | $0.00708 |
| Sonnet 5 | $0.00283 | $0.00283 |
| Haiku 4.5 | $0.00142 | $0.00142 |
Grade A, and why
gbrainmcp-clean AGENTS.md 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 7d 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 — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agents working on GBrain
This is your install + operating protocol. Claude Code reads ./CLAUDE.md automatically.
Everyone else (Codex, Cursor, OpenClaw, Aider, Continue, or an LLM fetching via URL):
start here.
Install (5 min)
- Clone:
git clone https://github.com/garrytan/gbrain ~/gbrain && cd ~/gbrain - Install:
bun install - Init the brain:
gbrain init(defaults to PGLite, zero-config). For 1000+ files or multi-machine sync, init suggests Postgres + pgvector via Supabase. - STOP — ask the user about search mode.
gbrain initauto-applied a default but printed a 9-cell cost matrix (mode × downstream model) preceded by[AGENT]markers. You MUST relay the matrix to the operator and confirm their choice before continuing. Cost spread between corners is 25x — silent acceptance is the wrong default. See./INSTALL_FOR_AGENTS.mdStep 3.5 for the exact ask-the-user protocol. Same banner fires ongbrain post-upgradefor existing users (search modes were added in v0.32.3). - Read
./INSTALL_FOR_AGENTS.mdfor the full 9-step flow (API keys, identity, cron, verification).
Read this order
./AGENTS.md(this file) — install + operating protocol../CLAUDE.md— architecture reference, key files, trust boundaries, test layout../docs/architecture/brains-and-sources.md— the two-axis mental model (brain = which DB, source = which repo in the DB). Every query routes on both axes. Read before writing anything that touches brain ops../skills/conventions/brain-routing.md— agent-facing decision table: when to switch brain, when to switch source, how cross-brain federation works (latent-space only; the agent decides)../skills/RESOLVER.md— skill dispatcher. Read before any task.
Trust boundary (critical)
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.
- 7d ago First seen · 97 lines · 1,416 tokens per session scan A 7ef80288e8f2
gbrainmcp-clean AGENTS.md is an instructions file published in the GitHub repository cyberbird2048/gbrainmcp-clean (0 stars, last pushed 1mo ago), licensed MIT. It adds 1,416 tokens to every session, about $0.0071 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.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.