Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/devdacian/touchstone/claude-mdgit clone --depth 1 https://github.com/devdacian/touchstoneWhat 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 | $0.00230 | $0.00230 |
| Opus 5 | $0.00115 | $0.00115 |
| Sonnet 5 | $0.00046 | $0.00046 |
| Haiku 4.5 | $0.00023 | $0.00023 |
Grade A, and why
touchstone 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 2d 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
Claude Code entry (Touchstone source repo)
This repo develops Touchstone and dogfoods it on itself; the methodology lives
under .touchstone/methodology/. Because Touchstone is always relevant here, this
entry file eager-imports the full methodology so every session has it loaded:
@.touchstone/methodology/TOUCHSTONE.md @.touchstone/methodology/TOUCHSTONE-claude.md
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.
- 2d ago First seen · 21 lines · 230 tokens per session scan A 71ab3adbcc42
touchstone CLAUDE.md is an instructions file published in the GitHub repository devdacian/touchstone (19 stars, last pushed 1mo ago), licensed MIT. It adds 230 tokens to every session, about $0.0011 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 2026-08-30.
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