Borrowing it
Nothing to install: this file belongs to Fail-Safe/Noema. 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/Fail-Safe/Noema/main/AGENTS.mdgit clone --depth 1 https://github.com/Fail-Safe/NoemaWrote 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/fail-safe/noema/agents-md)<a href="https://agentmods.dev/instructions/fail-safe/noema/agents-md"><img src="https://agentmods.dev/badge/instructions/fail-safe/noema/agents-md/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/instructions/fail-safe/noema/agents-md"><img src="https://agentmods.dev/badge/instructions/fail-safe/noema/agents-md.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 | $0.00928 | $0.00928 |
| Opus 5.5 | $0.00371 | $0.00371 |
| Sonnet 5.5 | $0.00186 | $0.00186 |
| Haiku 4.5 | $0.00093 | $0.00093 |
Grade A, and why
Noema 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 17d 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 — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Project Structure & Module Organization
Noema is a Rust 2024 CLI and MCP server with a minimum supported Rust version
of 1.88. The executable entry point is src/main.rs; implementation lives in
src/, grouped by domain modules such as cli, cortex, db, mcp,
federation, watch, consolidation, embedding, and trace. SQLite
migrations are in migrations/. Unit tests live beside the code they cover;
process-death and recovery integration tests live in tests/*.rs.
Plugins are separate: plugins/obsidian/ is a TypeScript Obsidian plugin, and
plugins/hermes/ is a Python Hermes memory provider with pytest tests. Shared
scripts live in scripts/; security notes and qualification material live in
SECURITY.md and tests/. The completed Go-to-Rust evaluation is retained in
docs/why-rust.md and the related rewrite documents as historical evidence.
Build, Test, and Development Commands
make build: builds the development binary at./noema.cargo run -- <args>: runs the CLI without copying a root binary.cargo build --locked: builds the Rust crate usingCargo.lock.make test: runs formatting, strict Clippy checks, and all Rust tests.cargo test --all-targets --locked: runs the complete Rust test suite.make release-check: builds and smoke-tests the optimized host binary.cd plugins/obsidian && npm ci && npm run build && npx tsc --noEmit: validates the Obsidian plugin.cd plugins/hermes && pytest: runs Hermes plugin tests when Python changes.
Coding Style & Naming Conventions
Use cargo fmt for formatting and keep modules small and domain-named. New
warnings must pass cargo clippy --all-targets -- -D warnings. Prefer existing
Clap command patterns in src/cli.rs and existing storage/mutation APIs in
src/cortex.rs over new cross-cutting abstractions. SQL migrations use
zero-padded numeric prefixes such as 016_trace_embeddings.sql.
For TypeScript, keep sources in plugins/obsidian/src/ and let the existing
esbuild and TypeScript configs define output and type checks.
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.
- 17d ago Changed · +10 lines · +137 tokens per session 4917107308b1
- 2mo ago First seen · 69 lines · 791 tokens per session scan A b0f65afc649c
Noema AGENTS.md is an instructions file published in the GitHub repository Fail-Safe/Noema (24 stars, last pushed yesterday), licensed MIT. It adds 928 tokens to every session, about $0.0037 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 2026-08-30.
Noema AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| Noema AGENTS.mdFail-Safe/Noema | Instructions file | 24 | yesterday | MIT | A | 928 | Codex, OpenCode |
| repobrain copilot-instructions.mdstudy8677/repobrain | Instructions file | 1.4k | 14d ago | MIT | A | 229 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |