Borrowing it
Nothing to install: this file belongs to XTND-DYNAMICS/xtnd-mcp-one. 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/XTND-DYNAMICS/xtnd-mcp-one/main/CLAUDE.mdgit clone --depth 1 https://github.com/XTND-DYNAMICS/xtnd-mcp-oneWrote 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/xtnd-dynamics/xtnd-mcp-one/claude-md)<a href="https://agentmods.dev/instructions/xtnd-dynamics/xtnd-mcp-one/claude-md"><img src="https://agentmods.dev/badge/instructions/xtnd-dynamics/xtnd-mcp-one/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 | $0.00236 | $0.00236 |
| Opus 5 | $0.00118 | $0.00118 |
| Sonnet 5 | $0.00047 | $0.00047 |
| Haiku 4.5 | $0.00024 | $0.00024 |
Grade A, and why
xtnd-mcp-one 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 6d 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 — xtnd-mcp-one
Model Context Protocol (MCP) server for one.com mail server on Cloudflare Workers (one.mcp.xgi.io).
Golden Rules
- Commit only what you changed. Stage files explicitly; never
git add -A/git add .. - Never commit credentials.
.dev.varscontains real mailbox secrets (ONECOM_PASSWORD) and must remain gitignored. - Typecheck and test before committing:
npm run check(tsc --noEmit)npm test(offline unit tests)npm run test:live(integration tests against live[email protected]account)
Commands
npm run dev: Start local Wrangler dev server on:8787.npm run check: Run TypeScript compiler typecheck.npm test: Run offline unit test suite.npm run test:live: Run live integration test against one.com.npm run deploy: Deploy Worker to Cloudflare (one.mcp.xgi.io).
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.
- 6d ago First seen · 19 lines · 236 tokens per session scan A f39969c1263e
xtnd-mcp-one CLAUDE.md is an instructions file published in the GitHub repository XTND-DYNAMICS/xtnd-mcp-one (0 stars, last pushed 9d ago), licensed MIT. It adds 236 tokens to every session, about $0.0012 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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