Borrowing it
Nothing to install: this file belongs to chapmanjw/rutherford-mcp-server. 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/chapmanjw/rutherford-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/chapmanjw/rutherford-mcp-serverWrote 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/chapmanjw/rutherford-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/chapmanjw/rutherford-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/chapmanjw/rutherford-mcp-server/claude-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 | $0.00167 | $0.00167 |
| Opus 5 | $0.00084 | $0.00084 |
| Sonnet 5 | $0.00033 | $0.00033 |
| Haiku 4.5 | $0.00017 | $0.00017 |
Grade A, and why
rutherford-mcp-server 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 8d 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.md
Claude Code reads CLAUDE.md and does not read AGENTS.md, so this file exists to point at the one
that does the work. AGENTS.md is canonical for every agent; keep instructions there, not
here, so there is one copy to keep true.
The line below is an import, not a link. Leave it in exactly this case: it resolves on a
case-insensitive filesystem either way, and only fails on Linux and macOS, which is the worst place to
learn about it. A missing import target is silent — no error, no warning, just a session with no
project context at all — so tests/test_agent_docs.py fails the build if this ever stops resolving.
@AGENTS.md
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.
- 8d ago First seen · 13 lines · 167 tokens per session scan A 109b037aecb9
rutherford-mcp-server CLAUDE.md is an instructions file published in the GitHub repository chapmanjw/rutherford-mcp-server (6 stars, last pushed yesterday), licensed MIT. It adds 167 tokens to every session, about $0.0008 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.
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