Borrowing it
Nothing to install: this file belongs to devdacian/touchstone. 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/devdacian/touchstone/main/AGENTS.mdgit clone --depth 1 https://github.com/devdacian/touchstoneWrote 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/devdacian/touchstone/agents-md)<a href="https://agentmods.dev/instructions/devdacian/touchstone/agents-md"><img src="https://agentmods.dev/badge/instructions/devdacian/touchstone/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/devdacian/touchstone/agents-md"><img src="https://agentmods.dev/badge/instructions/devdacian/touchstone/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 | $0.00280 | $0.00280 |
| Opus 5.5 | $0.00112 | $0.00112 |
| Sonnet 5.5 | $0.00056 | $0.00056 |
| Haiku 4.5 | $0.00028 | $0.00028 |
Grade A, and why
touchstone 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.
What it actually says
Codex entry (Touchstone source repo)
This repo develops Touchstone and dogfoods it on itself; the methodology lives
under .touchstone/methodology/.
Before any skill / methodology / Touchstone / consult / review-loop / external-review
work, FIRST read .touchstone/methodology/TOUCHSTONE.md — the runtime-neutral process. When
orchestrating a Claude reviewer, ALSO read
.touchstone/methodology/references/external-review-reverse.md (the pinned reverse
cross-model wrapper contract). Under Claude Code, ALSO read
.touchstone/methodology/TOUCHSTONE-claude.md for the Claude-specific mechanisms.
This repo's own dogfood tests for the external-review machinery live in
tests/external-review/ (NOT under .touchstone/methodology/, so they are never
vendored into hosts). When you change the classifier or wrappers under
.touchstone/methodology/scripts/external-review/, run and keep them green:
bash tests/external-review/test-classifier.sh and
bash tests/external-review/test-forward-wrapper-argv.sh and
bash tests/external-review/test-reverse-wrapper-argv.sh.
When you change install.sh, run and keep green:
bash -n install.sh and
bash tests/test-install-output.sh.
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 Changed · +1 lines · +10 tokens per session 9ac010cb40bd
- 2mo ago First seen · 23 lines · 270 tokens per session scan A c5dd261a0bf8
touchstone AGENTS.md is an instructions file published in the GitHub repository devdacian/touchstone (19 stars, last pushed 8d ago), licensed MIT. It adds 280 tokens to every session, about $0.0011 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.
Other instructions, from other repositories
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).
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.
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Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
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