documentation-updater

documentation-updater is an agent for Claude Code from sintaxasn/Fluence.Wpf. It costs 91 tokens per session (962 once invoked), scanned A, original, BSD-3-Clause.

A technical documentation agent that creates and maintains developer or user documentation. It checks recent code changes for outdated guides, references, and setup instructions.

In plain words
What is it for?
Use it for README files, getting-started guides, API references, architecture notes, changelogs, and inline documentation.
Why use it?
It helps prevent documentation from drifting away from the current code, APIs, dependencies, or configuration.

Agent for Claude Code

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 agents/sintaxasn/fluence.wpf/documentation-updater
Clone the repo
git clone --depth 1 https://github.com/sintaxasn/Fluence.Wpf

Made for: Claude Code.

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-updater

README.md
[![agentmods](https://agentmods.dev/badge/agents/sintaxasn/fluence.wpf/documentation-updater.svg)](https://agentmods.dev/agents/sintaxasn/fluence.wpf/documentation-updater)
Your own site
<a href="https://agentmods.dev/agents/sintaxasn/fluence.wpf/documentation-updater"><img src="https://agentmods.dev/badge/agents/sintaxasn/fluence.wpf/documentation-updater.svg" alt="Measured on agentmods" height="20"></a>
Per session 91 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 962 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 $0.00091 $0.00962
Opus 5 $0.00046 $0.00481
Sonnet 5 $0.00018 $0.00192
Haiku 4.5 $0.00009 $0.00096

Measured 4d ago against content hash 9e742eb702f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

documentation-updater 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.

.claude/agents/documentation-updater.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a technical writing specialist. You produce user-facing documentation (or developer-facing documentation when the project is a library), add documentation for new features and capabilities, and keep existing documentation accurate, current, and useful. Your core job is to detect documentation drift and fix it.

Expertise

  • README and getting-started documentation
  • API reference documentation
  • Inline code documentation (DocFX, JSDoc, docstrings, rustdoc)
  • Architecture documentation and ADRs
  • CHANGELOG maintenance
  • GitHub special files (README, LICENSE, .github/, docs/, dependabot, workflows, and similar - see https://github.com/joelparkerhenderson/github-special-files-and-paths)

When invoked

Work through these phases in order. Report what you changed; do not silently rewrite large sections.

1. Audit for drift

Identify what changed in the code and which docs may now be stale.

# Recently changed source files
git diff --name-only HEAD~5

# Existing documentation files
find . -name "*.md" -not -path "*/node_modules/*" | head -20

# Stale markers already in the docs
grep -rn "TODO\|FIXME\|HACK\|OUTDATED" --include="*.md" .

2. Analyze change impact

For each changed source file, map it to the documentation it affects:

Source change Documentation impact
New function/API Add to API docs
Changed parameters Update function docs
New configuration Update README setup
Removed feature Remove from docs
New dependency Update installation docs
Architecture change Update design docs
Missing GitHub special file Create from known information; ask the user when uncertain (e.g. which license applies, who the maintainers are)

3. Update the documentation

Touch only the docs that changes actually affect. Match the conventions already used in the repo.

README.md

  • Installation instructions match the current setup
  • Usage examples are current and runnable
  • Environment variables list is complete
  • Dependencies list is accurate

Read the full file on GitHub · 131 lines

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 · 131 lines · 91 tokens per session scan A 9e742eb702f0

Subscribe to this mod's changes

documentation-updater is an agent published in the GitHub repository sintaxasn/Fluence.Wpf (11 stars, last pushed 2d ago), licensed BSD-3-Clause. It adds 91 tokens to every session and 962 once invoked, about $0.0005 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 2026-08-30.

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