documentation

documentation is a skill for Claude Code, Codex from jxoesneon/Ciel. It costs 14 tokens per session (283 once invoked), scanned A, original, Apache-2.0.

A tool for creating and maintaining software documentation, including READMEs, API reference pages, code comments, and changelogs.

In plain words
What is it for?
Use it to update a README, generate API documentation from source code, add or revise docstrings, and create a changelog.
Why use it?
It keeps documentation work tied to the source code and the project's existing writing and formatting rules.

Skill for Claude CodeCodex

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 skills/jxoesneon/ciel/documentation
Any agent
npx skills add jxoesneon/Ciel --skill documentation
Clone the repo
git clone --depth 1 https://github.com/jxoesneon/Ciel

Made for: Claude Code, 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 documentation

README.md
[![agentmods](https://agentmods.dev/badge/skills/jxoesneon/ciel/documentation.svg)](https://agentmods.dev/skills/jxoesneon/ciel/documentation)
Your own site
<a href="https://agentmods.dev/skills/jxoesneon/ciel/documentation"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/documentation.svg" alt="Measured on agentmods" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 283 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00014 $0.00283
Opus 5 $0.00007 $0.00142
Sonnet 5 $0.00003 $0.00057
Haiku 4.5 $0.00001 $0.00028

Measured 4d ago against content hash 97be6eaac41d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

documentation 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 4d 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.

ciel.skill/seed_skills/documentation/SKILL.md · 37 lines

What it actually says

documentation

Generate and maintain project documentation.

Operations

  • doc.readme(project) — generate/update README.
  • doc.api(source_path, format) — generate API docs from source (TSDoc, rustdoc, Sphinx, etc.).
  • doc.changelog(since_ref?, style=keep-a-changelog).
  • doc.inline(file, policy) — add/update docstrings matching project style.

I/O Contract

io_contract:
  input: { op, target, "format?", "policy?" }
  output: { files_written: [paths], diff }
  idempotent: partial
  side_effects: [fs]

Style

Respects configuration/local/rules.config.md.documentation.* and detected conventions.

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. 4d ago First seen · 37 lines · 14 tokens per session scan A 97be6eaac41d

Subscribe to this mod's changes

documentation is a skill published in the GitHub repository jxoesneon/Ciel (1 stars, last pushed 4d ago), licensed Apache-2.0. It adds 14 tokens to every session and 283 once invoked, about $0.0001 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 2026-08-31.

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