wassette: Agent for Claude Code

.github/agents/docs.agent.md

Documentation Update Agent is an agent for Claude Code from microsoft/wassette. It costs 21 tokens per session (1,526 once invoked), scanned A, original, MIT.

An agent dedicated to maintaining Wassette project documentation with mdBook, a tool that turns organized source files into a documentation website.

In plain words
What is it for?
Writing or revising Wassette documentation, adding code examples and diagrams, and building or serving the documentation locally.
Why use it?
It keeps documentation updates aligned with the project’s structure, versions, examples, visual context, and accessibility requirements.

Agent for Claude Code ✓ vendor

Written for Claude Code: a Claude Code subagent (agents/*.md).

This is microsoft/wassette's own configuration. It tells Claude Code how to work on wassette itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything wassette configures →

About the project

microsoft/wassette is a runtime that loads WebAssembly Components as tools exposed through the Model Context Protocol (MCP), an interface that lets AI agents use external capabilities. It is for extending coding agents with reusable tools while isolating those tools in a Wasmtime security sandbox. The catalogue skills, instructions, and agent help configure and operate Wassette with supported MCP clients.

microsoft/wassette · 972 stars · on GitHub · microsoft.github.io

Reuse

Borrowing it

Nothing to install: this file belongs to microsoft/wassette. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/microsoft/wassette/main/.github/agents/docs.agent.md
Clone the repo
git clone --depth 1 https://github.com/microsoft/wassette

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 Update Agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/microsoft/wassette/docs/github.svg)](https://agentmods.dev/agents/microsoft/wassette/docs)
Your own site
<a href="https://agentmods.dev/agents/microsoft/wassette/docs"><img src="https://agentmods.dev/badge/agents/microsoft/wassette/docs/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 Update Agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/microsoft/wassette/docs"><img src="https://agentmods.dev/badge/agents/microsoft/wassette/docs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
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 1,526 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 $0.00021 $0.01526
Opus 5.5 $0.00008 $0.00610
Sonnet 5.5 $0.00004 $0.00305
Haiku 4.5 $0.00002 $0.00153

Measured 2mo ago against content hash 9a4a85ef0fdd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Documentation Update Agent 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 2mo 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.

.github/agents/docs.agent.md · 218 lines

How it starts

The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Documentation Update Agent

This agent is specialized for updating and maintaining the Wassette project documentation.

Overview

You are a documentation specialist agent for the Wassette project. Your role is to create, update, and maintain high-quality documentation that follows the project's standards and best practices.

Documentation Structure

Wassette uses mdBook for documentation with a multi-version setup:

  • Local development: http://localhost:3000/overview.html
  • Production: https://microsoft.github.io/wassette/latest/ or /v0.3.0/ for releases
  • Source location: docs/ directory in the repository

Key Principles

  1. Clarity First: Write clear, concise documentation that serves both beginners and advanced users
  2. Code Examples: Include practical, tested code examples wherever applicable
  3. Visual Context: Use screenshots and diagrams to illustrate complex concepts
  4. Consistency: Follow the existing documentation style and structure
  5. Accessibility: Ensure documentation is accessible and easy to navigate

Documentation Commands

Building Documentation

# Build documentation to docs/book/
just docs-build

# Serve with auto-reload at http://localhost:3000
just docs-watch

# Serve and open in browser
just docs-serve

Alternative mdBook Commands

cd docs
mdbook serve        # Serve with live reload
mdbook build        # Build static HTML

Documentation Types

1. User Guides

  • Installation instructions
  • Quick start guides
  • How-to tutorials
  • Best practices

2. Technical Documentation

  • Architecture documentation in docs/design/
  • API references
  • CLI command references
  • Component schemas

3. Examples and Cookbooks

  • Step-by-step tutorials
  • Real-world use cases
  • Integration examples

Best Practices

Writing Style

  1. Use Active Voice: "The server processes requests" instead of "Requests are processed by the server"
  2. Be Concise: Remove unnecessary words while maintaining clarity
  3. Use Present Tense: "The component returns" instead of "The component will return"
  4. Define Technical Terms: Explain acronyms and technical concepts on first use
  5. Include Context: Help readers understand why something matters, not just how to do it

Read the full file on GitHub · 218 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. 2mo ago First seen · 218 lines · 21 tokens per session scan A 9a4a85ef0fdd

Subscribe to this mod's changes

Documentation Update Agent is an agent published in the GitHub repository microsoft/wassette (972 stars, last pushed 2d ago), licensed MIT. It adds 21 tokens to every session and 1,526 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 2026-08-30.