document-code

Documents

Add and update the documentation website for Syncpack. Use when making user-facing changes to the codebase.

QUICK START

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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/JamieMason/syncpack/blob/HEAD/.claude/skills/document-code/SKILL.md

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Document Code

Guide for adding and updating Syncpack's documentation website.

Quick Decision

What are you documenting?

Adding/Updating...	Location
Command docs	`site/src/content/docs/command/[cmd].mdx`
Config property	`site/src/content/docs/config/[prop].mdx`
Version group variant	`site/src/content/docs/version-groups/[var].mdx`
Semver group variant	`site/src/content/docs/semver-groups/[var].mdx`
Status code	`site/src/content/docs/status/[code].mdx`
FAQ	`site/src/faq/[id].mdx`
Shared option partial	`site/src/_partials/option/[opt].mdx`
Reusable component	`site/src/components/[name].astro`

Workflow

Read source — cli.rs for commands, rcfile.rs for config, instance_state.rs for status codes
Create/update MDX — Match existing structure exactly
Add link identifier — Update globalReferenceLinks in astro.config.mjs
Test locally — pnpm run dev from site/
Verify links — Check all (IDENTIFIER) links resolve

Source to Docs Mapping

Source	Documentation
`src/cli.rs` Subcommand	`site/src/content/docs/command/*.mdx`
`src/rcfile.rs` Rcfile	`site/src/content/docs/config/*.mdx`
`src/instance_state.rs`	`site/src/content/docs/status/*.mdx`
`src/specifier.rs`	`site/src/content/docs/reference/specifier-types.mdx`

Local Development

cd site
pnpm run dev          # Start at http://localhost:4321/syncpack
pnpm run build        # Verify build succeeds

Site Overview

Source located at site/src/
Built with Starlight on top of Astro
Content at site/src/content/docs/**/*.mdx
Reusable partials at site/src/_partials/**/*.mdx
Reusable components at site/src/components/*.astro

Command Documentation

Each command has a corresponding file at site/src/content/docs/command/[command].mdx.

Required Structure (in order)

Description of the command's purpose from end user perspective
## Examples — Single bash code block with commented examples
## Options — Start with <QuoteFilters /> callout, then ### for each option alphabetically (--help last)

Shared Option Partials

Many commands share options. Define reusable partials at site/src/_partials/option/*.mdx:

import ConfigOption from "@partials/option/config.mdx";

<ConfigOption command="update" />

Config Documentation

Each config property has a file at site/src/content/docs/config/[property].mdx.

Required Structure

Description of the config's purpose from end user perspective
## Default Value — Code block showing default (when applicable)
## Examples — Code blocks with commented examples

Version Groups and Semver Groups

Each variant has its own page:

site/src/content/docs/version-groups/*.mdx
site/src/content/docs/semver-groups/*.mdx

Required Structure

Description of the group's purpose from end user perspective
## Examples — Code block per example, capture novel use cases
## Configuration — ### for each config property

Status Code Documentation

Each status code has a file at site/src/content/docs/status/[code].mdx.

Reference page at site/src/content/docs/reference/status-codes.mdx explains the InstanceState enum and its nested enums (ValidInstance, InvalidInstance, SuspectInstance).

FAQ Documentation

Create FAQ files at site/src/faq/[id].mdx
Listed at /syncpack/faq via site/src/pages/faq.astro
Individual pages via site/src/pages/faq/[id].astro

Linking Between Pages

Use named identifiers in markdown links:

When using the [update](COMMAND_UPDATE) command

Define identifiers in globalReferenceLinks function in site/astro.config.mjs.

Open Graph Images

Generated by site/src/pages/og/[...path].png.ts using Satori.

Troubleshooting

Problem	Fix
Link not working	Check identifier in `globalReferenceLinks`
Partial not rendering	Verify import path uses `@partials/` alias
OG image broken	Check `og/[...path].png.ts` handles new route
Build fails	Run `pnpm run build` locally to see error
Page not appearing in sidebar	Check frontmatter and Starlight config

Checklist

Before submitting documentation:

Structure matches existing pages of same type
Link identifier added to astro.config.mjs
Local dev server renders correctly
Build succeeds (pnpm run build)
All internal links resolve