agents-md-writer

agents-md-writer is a skill for Codex from jqaisystems/jqai-ai-skills. It costs 48 tokens per session (465 once invoked), scanned A, original, MIT.

A workspace guide that tells coding agents which skills to read, while linking Claude Code's instructions to the same source.

In plain words
What is it for?
It creates or updates AGENTS.md and CLAUDE.md after reviewing the workspace's skills and existing guidance.
Why use it?
It prevents skills stored in one agent's folder from being missed by other agents.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

Good fit It creates or updates AGENTS.md and CLAUDE.md after reviewing the workspace's skills and existing guidance.

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Install with agentmods
npx agentmods add skills/jqaisystems/jqai-ai-skills/agents-md-writer
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.

Any agent
npx skills add jqaisystems/jqai-ai-skills --skill agents-md-writer
Clone the repo
git clone --depth 1 https://github.com/jqaisystems/jqai-ai-skills

Made for: Codex.

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 agents-md-writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/jqaisystems/jqai-ai-skills/agents-md-writer/github.svg)](https://agentmods.dev/skills/jqaisystems/jqai-ai-skills/agents-md-writer)
Your own site
<a href="https://agentmods.dev/skills/jqaisystems/jqai-ai-skills/agents-md-writer"><img src="https://agentmods.dev/badge/skills/jqaisystems/jqai-ai-skills/agents-md-writer/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 agents-md-writer

Your own site · 80×15
<a href="https://agentmods.dev/skills/jqaisystems/jqai-ai-skills/agents-md-writer"><img src="https://agentmods.dev/badge/skills/jqaisystems/jqai-ai-skills/agents-md-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 465 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 $0.00048 $0.00465
Opus 5.5 $0.00019 $0.00186
Sonnet 5.5 $0.00010 $0.00093
Haiku 4.5 $0.00005 $0.00047

Measured 12d ago against content hash 051b73d9e359, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agents-md-writer 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 12d 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.

skills/agents-md-writer/SKILL.md · 42 lines

How it starts

The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Workspace Guidance Writer

Keep project instructions accurate without forcing every skill to load for every task.

  1. Read existing guidance at the workspace and relevant parent/subproject levels. Preserve unrelated rules and user edits.
  2. Inventory relevant skill locations, real folders, shared targets, missing entries, and name collisions. Do not read account settings or access files.
  3. Distinguish discovery from project routing:
    • Codex discovers repository/user .agents/skills folders and supports linked skill folders. Official guidance, checked 2026-10-14.
    • Claude Code discovers project/personal .claude/skills folders. Official guidance, checked 2026-10-14.
    • Inspect compatibility locations already in use; do not move or duplicate skills automatically.
  4. Propose a small task-specific map using verified workspace-relative references. Avoid blanket claims that a tool cannot discover skills.
  5. Show the intended diff before replacing substantive instructions. Update only requested files. A short CLAUDE.md pointer can be useful if it preserves existing load order, but is not mandatory.
  6. Verify referenced files exist and confirm routing/discovery with the target tool after its supported refresh. File existence alone is not integration success.

Example structure

# Project guidance

## Scope

These rules apply to this project. Preserve more specific subproject instructions.

## Skill routing

- For release preparation, use the installed safety-review skill when available.
- For a local-only reference, read the verified relative path listed here.

## Project constraints

Record actual project requirements and authorization boundaries.

Do not paste private profiles, inventories, source registries, or access configuration into public instructions. Do not replace, relink, or install skills as a side effect of writing guidance.

Read the full file on GitHub · 42 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 12d ago Changed · -38 lines · -38 tokens per session 051b73d9e359
  2. 1mo ago First seen · 80 lines · 86 tokens per session scan A 0914f3423874

Subscribe to this mod's changes

agents-md-writer is a skill published in the GitHub repository jqaisystems/jqai-ai-skills (3 stars, last pushed 13d ago), licensed MIT. It adds 48 tokens to every session and 465 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 2026-08-31.

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