Borrowing it
Nothing to install: this file belongs to andr-ca/agentharness. 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/andr-ca/agentharness/main/CLAUDE.mdgit clone --depth 1 https://github.com/andr-ca/agentharnessWrote 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/andr-ca/agentharness/claude-md)<a href="https://agentmods.dev/instructions/andr-ca/agentharness/claude-md"><img src="https://agentmods.dev/badge/instructions/andr-ca/agentharness/claude-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/andr-ca/agentharness/claude-md"><img src="https://agentmods.dev/badge/instructions/andr-ca/agentharness/claude-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 | $0.04919 | $0.04919 |
| Opus 5.5 | $0.01968 | $0.01968 |
| Sonnet 5.5 | $0.00984 | $0.00984 |
| Haiku 4.5 | $0.00492 | $0.00492 |
Grade A, and why
agentharness CLAUDE.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 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.
How it starts
The opening of the file, as written. The whole thing — 371 lines — stays where its author put it; the contents beside it link to each section on GitHub.
agentharness – Agent Router
This file is loaded into every session that touches this repo. Keep it short — everything else is one link away. Full index: MANIFEST.md. Planned-but-not-built: ROADMAP.md.
🤖 Agent Workflow Completion
Default (no publish authority): verify and stage, then stop.
- ✅ Run the completion gate — before declaring any work done, run
bash tools/check-completion.sh. This script verifies lint, types, tests, coverage, and content quality in one shot and exits non-zero if anything fails. The Stop hook in.github/hooks/completion-gate.jsonand.claude/settings.jsonenforces this automatically for Claude Code and GitHub Copilot — the agent cannot stop until all gates pass. - ✅ Create atomic commits locally — one logical unit per commit, clear message explaining WHY
- 🛑 Stop before pushing, opening a PR, or auto-implementing recommendations. Present a summary of what's staged and ask the user to confirm before publishing anything.
A local commit is not a durable safe-point in an ephemeral-container
execution environment. If you have verified, committed-but-unpushed
work and are about to block on AskUserQuestion or other unbounded
human input, consider pushing to a remote branch (a scratch/WIP branch
is fine) first — committed-but-unpushed work can be lost if the
container is reclaimed during the wait, with no error at commit time
and no warning until a later git log looks unfamiliar. This is
disclosure of an existing risk, not a grant of publish authority: it
does not authorize opening a PR or merging, and the default tier above
still governs those.
Full publish authority (commit → push → PR, same as before) applies only when either is true:
.agentharness-publish-modeexists at this repo's root (a local, gitignored, per-operator flag — see "Publish authority" below), or- The user has explicitly granted standing authorization for this session
or task in the current conversation. This always overrides the flag in
either direction — explicit instructions in the request outrank a
standing file the same way rigor-tier precedence already works (see
patterns/profiles/README.md#precedence-order).
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 First seen · 371 lines · 4,919 tokens per session scan A f73a2c1f7493
agentharness CLAUDE.md is an instructions file published in the GitHub repository andr-ca/agentharness (1 stars, last pushed 2d ago), licensed MIT. It adds 4,919 tokens to every session, about $0.0197 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 instructions, from other repositories
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AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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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.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.