Borrowing it
Nothing to install: this file belongs to ZenixSolutions/hudu-mcp. 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/ZenixSolutions/hudu-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/ZenixSolutions/hudu-mcpWrote 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/zenixsolutions/hudu-mcp/claude-md)<a href="https://agentmods.dev/instructions/zenixsolutions/hudu-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/zenixsolutions/hudu-mcp/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/zenixsolutions/hudu-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/zenixsolutions/hudu-mcp/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 | $0.01821 | $0.01821 |
| Opus 5 | $0.00911 | $0.00911 |
| Sonnet 5 | $0.00364 | $0.00364 |
| Haiku 4.5 | $0.00182 | $0.00182 |
Grade A, and why
hudu-mcp 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 9d 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 — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Instructions for AI agents working on this repository. This is not
documentation for users of the server; for that, see README.md.
Authority
Engineering OS is the authoritative source for how this project is built — architecture, coding standards, repository structure, documentation, testing, security, workflow, review and decision-making. Follow its standards unless this repository documents an approved exception. Do not invent a convention Engineering OS already defines. Where this repository and Engineering OS conflict, ask; do not choose.
CONTRIBUTING.md describes the contribution lifecycle and states plainly which
steps CI enforces and which are convention. Read it before proposing changes.
Read these before changing anything
| File | Why |
|---|---|
docs/reference/spec-defects.md |
Every non-obvious decision in this codebase traces to a numbered item |
docs/reference/api-docs.json |
The captured Hudu contract. The only source of truth about the API |
src/tools/define.ts |
The tool factory; where gating, stripping and error shaping happen once |
src/tools/resource.ts |
The CRUD generator most tools are built from |
src/security/secrets.ts |
Why secret stripping is structural rather than per-tool |
If you are about to write a comment explaining why something is done a strange
way, check whether spec-defects.md already explains it and cite the item
instead.
Layers
src/ is layered. A layer may import from the layers below it and never from
the ones above.
index.ts CLI: argv, exit codes, usage text. No domain logic.
server.ts buildServer(): tool definitions + config -> McpServer.
transport/ stdio wiring.
tools/ Tool declarations. define.ts is the factory; resource.ts
generates the repeated CRUD shapes; per-resource modules
state only what is genuinely different.
presentation/ Response shaping: markdown, field projection, page info,
character budget. No I/O.
security/ Operation classification and secret stripping. Pure.
api/ HTTP to Hudu: client, paths, envelope, errors, rate
limit, redaction. Knows nothing about MCP.
config.ts Environment parsing and validation. Nothing read from disk.
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.
- 9d ago First seen · 150 lines · 1,821 tokens per session scan A eca772d083aa
hudu-mcp CLAUDE.md is an instructions file published in the GitHub repository ZenixSolutions/hudu-mcp (0 stars, last pushed 2d ago), licensed MIT. It adds 1,821 tokens to every session, about $0.0091 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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