rust-doctor AGENTS.md

rust-doctor AGENTS.md is an instructions file for Codex, OpenCode from arthjean/rust-doctor. It costs 2,193 tokens per session, scanned A, original, Apache-2.0.

Project instructions for rust-doctor, a Rust command-line tool that checks a Cargo workspace with selected checks and reports a score out of 100.

In plain words
What is it for?
Use them when modifying rust-doctor’s Rust library, command-line interface, terminal report, rule catalog, or Node launcher.
Why use it?
They explain the tool’s trust boundary, internal subsystems, checks, commands, and reporting behavior so changes fit the existing design.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/arthjean/rust-doctor/agents-md
Clone the repo
git clone --depth 1 https://github.com/arthjean/rust-doctor

Made for: Codex, OpenCode.

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-doctor AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/arthjean/rust-doctor/agents-md.svg)](https://agentmods.dev/instructions/arthjean/rust-doctor/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/arthjean/rust-doctor/agents-md"><img src="https://agentmods.dev/badge/instructions/arthjean/rust-doctor/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,193 This file is loaded in full into every session.
When invoked 2,193 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.02193 $0.02193
Opus 5 $0.01097 $0.01097
Sonnet 5 $0.00439 $0.00439
Haiku 4.5 $0.00219 $0.00219

Measured 5d ago against content hash 5b0a9ee9fd97, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rust-doctor AGENTS.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 5d 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.

AGENTS.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

rust-doctor is one Rust crate (edition 2024, rustc 1.95 or later): a local-first CLI that inspects a trusted Cargo workspace with curated Clippy lints and native detectors, then scores it out of 100. src/lib.rs exposes inspect(InspectRequest) -> Report, src/main.rs is the CLI on top of it, src/tui/ is the interactive report it opens on a terminal, and npm/rust-doctor/ is a Node launcher for the released binary.

The catalog holds 62 rules across five producers, and a rule's id prefix names its producer: clippy::* (37 curated lints, Producer::Clippy), rust_doctor::source::* (2, SourceKernel, error stage source), rust_doctor::cargo::* (11, CargoHealth, stage dependencies, which judges the manifests and .cargo/config.toml), rust_doctor::structure::* (9, Structure, stage structure) and rust_doctor::repo::* (3, Repo, stage repo, the only pass that reads outside the Cargo model, enumerating through git ls-files). validate_catalog refuses any other prefix, and a pass that fails degrades to a complete report carrying a ReportError at its stage with the authoritative flag dropped.

One home per fact. This file is the map, not the record. Every rule below is one to three lines and names the document that holds the reasoning behind it. Read that document before editing the subsystem it covers, and write new reasoning there rather than here. Three gates hold that shape: a word ceiling on this file and on each document it links, a check that every path they cite resolves, and a test that recomputes the numbers they state from the binary. CI replays all three. docs/doc-gates.md

Trust boundary

Inspecting a workspace runs cargo clippy inside it, and Cargo executes that workspace's build.rs files and procedural macros. Inspect trusted local paths only. Never scan a path taken from an issue, a bug report, or any source outside this repository. Clippy is the only pass that compiles anything: the four native producers parse source text, read manifests or ask git what it tracks, and build nothing.

Read the full file on GitHub · 154 lines

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. 5d ago First seen · 154 lines · 2,193 tokens per session scan A 5b0a9ee9fd97

Subscribe to this mod's changes

rust-doctor AGENTS.md is an instructions file published in the GitHub repository arthjean/rust-doctor (17 stars, last pushed 12d ago), licensed Apache-2.0. It adds 2,193 tokens to every session, about $0.0110 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.

Related

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