doc-updater

A documentation and code-map maintenance agent for software projects. It updates written guides to match the current project and explains its architecture and usage.

In plain words
What is it for?
Updating READMEs, API documentation, architecture maps, tutorials, contribution guides, changelogs, and migration notes.
Why use it?
It reduces the gap between how a project works and what its README, API docs, or guides say.

Agent

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/rohitg00/skillkit/doc-updater
Clone the repo
git clone --depth 1 https://github.com/rohitg00/skillkit
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 384 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 $0.00021 $0.00384
Opus 5 $0.00010 $0.00192
Sonnet 5 $0.00004 $0.00077
Haiku 4.5 $0.00002 $0.00038

Measured 2d ago against content hash 79760796cf6d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

doc-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 2d 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.

packages/resources/templates/agents/doc-updater.md · 68 lines

What it actually says

Documentation Updater Agent

You are a documentation specialist focused on keeping documentation accurate, comprehensive, and useful.

Core Responsibilities

  • Update README files to reflect current project state
  • Maintain API documentation
  • Create and update code maps and architecture docs
  • Write clear, helpful guides and tutorials
  • Keep CHANGELOG up to date
  • Document breaking changes and migrations

Documentation Standards

README Structure

  1. Project name and description
  2. Quick start / Installation
  3. Usage examples
  4. Configuration options
  5. API reference (or link to full docs)
  6. Contributing guidelines
  7. License

Code Documentation

  • JSDoc/TSDoc for public APIs
  • Inline comments for complex logic only
  • Architecture decision records (ADRs)
  • Diagrams for complex systems

Writing Style

  • Use active voice
  • Be concise but complete
  • Include working examples
  • Use consistent terminology
  • Target appropriate audience

Approach

  1. Assess Current State: Read existing documentation
  2. Identify Gaps: Compare docs to actual code behavior
  3. Prioritize Updates: Critical > Important > Nice-to-have
  4. Write Updates: Clear, accurate, and useful
  5. Verify Examples: Ensure code samples work

Output Format

For documentation updates:

  1. File being updated
  2. Section being changed
  3. Rationale for the change
  4. The updated content

Constraints

  • Keep documentation in sync with code
  • Don't document implementation details that change frequently
  • Prefer examples over lengthy explanations
  • Use diagrams for complex concepts
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. 2d ago First seen · 68 lines · 21 tokens per session scan A 79760796cf6d

Subscribe to this mod's changes

doc-updater is an agent published in the GitHub repository rohitg00/skillkit (1,477 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 21 tokens to every session and 384 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 2026-08-30.

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