Borrowing it
Nothing to install: this file belongs to KalarisLabs/Skill-Doctor. 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/KalarisLabs/Skill-Doctor/main/AGENTS.mdgit clone --depth 1 https://github.com/KalarisLabs/Skill-DoctorWrote 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/kalarislabs/skill-doctor/agents-md)<a href="https://agentmods.dev/instructions/kalarislabs/skill-doctor/agents-md"><img src="https://agentmods.dev/badge/instructions/kalarislabs/skill-doctor/agents-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/kalarislabs/skill-doctor/agents-md"><img src="https://agentmods.dev/badge/instructions/kalarislabs/skill-doctor/agents-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 | $0.01336 | $0.01336 |
| Opus 5.5 | $0.00534 | $0.00534 |
| Sonnet 5.5 | $0.00267 | $0.00267 |
| Haiku 4.5 | $0.00134 | $0.00134 |
Grade A, and why
Skill-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 1mo 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 — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — working agreement for coding agents in this repository
This file governs any AI coding agent (Claude Code, Cursor, Codex CLI, Gemini CLI, etc.) operating
in this repo. Read CONTEXT.md before writing code. Read DEPENDENCIES.md before adding a crate.
What this project is
Skill Doctor is a Rust security scanner for AI agent skill files. The product is a single statically linked binary whose deterministic L1 layer is the shippable core. Everything else is elective and must degrade to reduced coverage, never to an error.
Skills — load before acting
Each folder under skills/ is an Agent Skill (SKILL.md). Load the matching one instead of improvising. If two apply, load both.
| Skill | Load when |
|---|---|
skills/project-context |
start of a session, architecture, where code lives |
skills/rust-workspace |
crates, Cargo.toml, deps |
skills/rust-invariants |
defaults, scoring, LLM/MCP, features |
skills/rust-idioms |
everyday Rust: errors, ownership, clippy |
skills/rust-perf |
speed, RSS, binary size, rayon/mmap, §7.3 targets |
skills/rust-testing |
tests, fixtures, determinism |
skills/ci-cd |
GitHub Actions, required checks, TestMu, OS matrix |
skills/yara-rules |
detectors, YARA-X, SDTM IDs |
skills/neutralize-sd11 |
L2, MCP, envelopes |
skills/cli-sarif |
clap, exit codes, SARIF |
skills/release-publish |
crates.io, npm, tags |
skills/review-bots |
CodeRabbit / Greptile / Intelligence AI |
skills/unsafe-sandbox |
unsafe, L3 process harness |
Non-negotiable invariants (do not violate; PRs that break these are rejected)
- Rust only. No Python, no Node, no shell interpreter in the product runtime. (npm is only a binary installer; Node is never required to scan.)
- No mandatory LLM. L1 must run with zero network, zero key, zero account. Semantic analysis (L2) is host-delegated and optional.
- Additive-only invariant. A probabilistic/L2 verdict may add findings or raise confidence.
It may never remove, downgrade, or suppress a deterministic L1 finding. This is enforced in
skill-doctor-core::scoringand covered by a dedicated test; do not weaken it. - Determinism. In
--deterministicmode, output is byte-identical across runs: pin timestamps, directory walk order, and iteration order over unordered collections (sort before serialize). - Rules compiled at build time. YARA-X rules are compiled once in
skill-doctor-rules'build.rsand embedded in the binary. Never compile rules per invocation. - SD-11 safety. Any content sent to any model MUST pass through
skill-doctor-neutralizefirst. No code path may hand raw skill content to an LLM. - Secrets. Never store secret values — only environment key names — in findings, reports, or logs.
- CLI-first. Plain scrolling text is the default output. The TUI is behind the
tuifeature and is never the default. - Exactly the four contributions described in the whitepaper. Do not invent scope.
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.
- 1mo ago Changed · -1 tokens per session c1e2c97a4fea
- 1mo ago Changed · +20 lines · +294 tokens per session 33db405d530c
- 1mo ago First seen · 72 lines · 1,043 tokens per session scan A feb61c9cd433
Skill-Doctor AGENTS.md is an instructions file published in the GitHub repository KalarisLabs/Skill-Doctor (13 stars, last pushed 5d ago), licensed Apache-2.0. It adds 1,336 tokens to every session, about $0.0053 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 2026-09-10.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.