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

Written for no agent in particular: nothing here depends on one.

Good fit Use it to update a README, generate API documentation from source code, add or revise docstrings, and create a changelog.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jxoesneon/ciel/documentation
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 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/github.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/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 documentation

Your own site · 80×15
<a href="https://agentmods.dev/skills/jxoesneon/ciel/documentation"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/documentation.svg" alt="Reviewed on agentmods" width="80" 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. 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 $0.00014 $0.00283
Opus 5.5 $0.00006 $0.00113
Sonnet 5.5 $0.00003 $0.00057
Haiku 4.5 $0.00001 $0.00028

Measured 1mo ago against content hash 97be6eaac41d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 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.

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. 1mo 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 2d ago), licensed Apache-2.0. It adds 14 tokens to every session and 283 once invoked, about $0.0001 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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