skilldoctor: Instructions file for Codex

AGENTS.md

skilldoctor AGENTS.md is an instructions file for Codex, OpenCode from xyiqq/skilldoctor. It costs 406 tokens per session, scanned A, original, MIT.

Project instructions for skilldoctor, a local TypeScript command-line tool and GitHub Action that checks Agent Skills files.

In plain words
What is it for?
Use them to type-check, test, build, lint, audit, check compatibility, score, explain, fix, initialise, and inspect skill files.
Why use it?
They document the required environment and standard checks, so contributors know how to validate changes without setting up a database, backend, or browser interface.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is xyiqq/skilldoctor's own configuration. It tells Codex and OpenCode how to work on skilldoctor 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 skilldoctor configures →

Reuse

Borrowing it

Nothing to install: this file belongs to xyiqq/skilldoctor. 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/xyiqq/skilldoctor/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/xyiqq/skilldoctor

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 skilldoctor AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/xyiqq/skilldoctor/agents-md/github.svg)](https://agentmods.dev/instructions/xyiqq/skilldoctor/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/xyiqq/skilldoctor/agents-md"><img src="https://agentmods.dev/badge/instructions/xyiqq/skilldoctor/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.

agentmods 80×15 button for skilldoctor AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/xyiqq/skilldoctor/agents-md"><img src="https://agentmods.dev/badge/instructions/xyiqq/skilldoctor/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 406 This file is loaded in full into every session.
When invoked 406 The same file — it is already loaded in full.
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 $0.00406 $0.00406
Opus 5.5 $0.00162 $0.00162
Sonnet 5.5 $0.00081 $0.00081
Haiku 4.5 $0.00041 $0.00041

Measured 1mo ago against content hash 84a5bc064b72, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skilldoctor 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.

AGENTS.md · 31 lines

What it actually says

AGENTS.md

Cursor Cloud specific instructions

skilldoctor is a self-contained TypeScript CLI (and GitHub Action) that lints, audits, and compatibility-checks Agent Skills (SKILL.md). There is no backend, database, browser UI, or other external service — everything runs locally in the Node.js process.

Environment

  • Requires Node.js >= 18.18 (the VM ships Node 22, which is fine). Uses npm with package-lock.json; do not switch package managers.
  • The update script already runs npm install, so dependencies are present when a session starts. There are no services to launch.

Standard commands (defined in package.json and .github/workflows/ci.yml)

  • Typecheck: npm run typecheck
  • Tests (Vitest): npm test (watch: npm run test:watch)
  • Build (emits to dist/): npm run build
  • Full gate (mirrors CI): npm run ci (typecheck + test + build)
  • Run from source without building: npm run dev -- <args> (e.g. npm run dev -- lint examples)
  • Run the built CLI: node dist/cli.js <command> (e.g. ci, lint, audit, compat, score, init, rules, explain, fix)

Notes

  • dist/ is committed and is the published artifact (the GitHub Action's action.yml points at dist/action.js). After changing anything under src/, run npm run build so dist/ stays in sync before committing.
  • CLI commands exit non-zero when findings meet the --fail-on threshold (or when zero skills are found for non-scan commands); this is expected behavior, not an environment failure.
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. 1mo ago First seen · 31 lines · 406 tokens per session scan A 84a5bc064b72

Subscribe to this mod's changes

skilldoctor AGENTS.md is an instructions file published in the GitHub repository xyiqq/skilldoctor (11 stars, last pushed 2mo ago), licensed MIT. It adds 406 tokens to every session, about $0.0016 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 2026-08-31.

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