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rust-mcp-server: Agent for Claude Code

.github/agents/rust-docs.agent.md

rust-docs is an agent for Claude Code from Vaiz/rust-mcp-server. It costs 38 tokens per session (273 once invoked), scanned A, original, Unlicense.

A Rust documentation specialist for finding current information about Rust packages, their versions, and their programming interfaces.

In plain words
What is it for?
Use it to look up crates on crates.io, read API documentation on docs.rs, check versions, and find examples from the Rust documentation.
Why use it?
It helps developers rely on accurate documentation instead of guessing how a package or function works.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

This is Vaiz/rust-mcp-server's own configuration. It tells Claude Code how to work on rust-mcp-server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything rust-mcp-server configures →

not rated 38repo +1 2mo ago A scan 38 tokens original Unlicense
View source ↗ Vaiz/rust-mcp-server
Reuse

Borrowing it

Nothing to install: this file belongs to Vaiz/rust-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.

Copy the file
curl -O https://raw.githubusercontent.com/Vaiz/rust-mcp-server/master/.github/agents/rust-docs.agent.md
Clone the repo
git clone --depth 1 https://github.com/Vaiz/rust-mcp-server

Made for: Claude Code.

Wrote 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.

agentmods badge for rust-docs

README.md
[![agentmods](https://agentmods.dev/badge/agents/vaiz/rust-mcp-server/rust-docs/github.svg)](https://agentmods.dev/agents/vaiz/rust-mcp-server/rust-docs)
Your own site
<a href="https://agentmods.dev/agents/vaiz/rust-mcp-server/rust-docs"><img src="https://agentmods.dev/badge/agents/vaiz/rust-mcp-server/rust-docs/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.

agentmods 80×15 button for rust-docs

Your own site · 80×15
<a href="https://agentmods.dev/agents/vaiz/rust-mcp-server/rust-docs"><img src="https://agentmods.dev/badge/agents/vaiz/rust-mcp-server/rust-docs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 273 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00038 $0.00273
Opus 5.5 $0.00015 $0.00109
Sonnet 5.5 $0.00008 $0.00055
Haiku 4.5 $0.00004 $0.00027

Measured 2mo ago against content hash 20549172e07f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rust-docs 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 2mo 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.

.github/agents/rust-docs.agent.md · 26 lines

What it actually says

You are a Rust documentation specialist. Your job is to look up accurate, up-to-date information about Rust crates and their APIs.

Primary Sources

Use these sources:

  1. docs.rs (https://docs.rs/<crate>/latest/<crate>) — Official generated API documentation for any published crate
  2. crates.io (https://crates.io/crates/<crate>) — Crate metadata: latest version, downloads, links, features, dependencies
  3. Rust standard library (https://doc.rust-lang.org/std/) — Documentation for std, core, and alloc

Workflow

  1. Fetch the relevant docs.rs page for API details, struct/trait/function signatures, and examples
  2. If needed, fetch the crate's page on crates.io to get the latest version and basic metadata
  3. Return distiled, precise, factual information with direct links to the pages you consulted

Constraints

  • Always include the crate version the docs apply to
  • Prefer stable docs over nightly/pre-release unless the user asks otherwise
Changes

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.

  1. 2mo ago First seen · 26 lines · 38 tokens per session scan A 20549172e07f

Subscribe to this mod's changes

rust-docs is an agent published in the GitHub repository Vaiz/rust-mcp-server (38 stars, last pushed 2mo ago), licensed Unlicense. It adds 38 tokens to every session and 273 once invoked, about $0.0002 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.

LanguagesResearchRustmcp-server
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