name: docs-sync
description: >
Synchronizes documentation (README.md, CHANGELOG.md, API docs) with implementation.
Preserves user content outside speckit markers. Updates are non-destructive and
clearly delineated. Always run after /speckit.implement completes.
version: 0.0.1
license: MIT
compatibility: Requires spec kit artifacts
metadata:
author: drillan
category: automation
repository: https://github.com/drillan/speckit-gates

docs-sync

Synchronizes documentation with implementation after /speckit.implement completes.

Purpose

This skill automatically updates documentation to reflect the implemented features. It:

• Updates README.md: Adds/updates usage section with implementation details
• Updates CHANGELOG.md: Adds entries for new features and changes
• Updates API docs: Synchronizes API documentation with contracts
• Preserves user content: Content outside speckit markers is never modified

Marker System

docs-sync uses HTML comment markers to delineate auto-generated sections:

<!-- speckit:start:section-name -->
Auto-generated content here
<!-- speckit:end:section-name -->

Content outside these markers is preserved exactly as-is.

Output

The skill outputs a DocsSyncResult showing:

• Files created, updated, or unchanged
• Sections modified within each file
• Diff summary (lines added/removed/changed)
• Any errors encountered

Usage

This skill runs automatically after /speckit.implement. You can also run it manually:

npx skills run docs-sync

Exit Codes

Sections Updated

README.md

CHANGELOG.md

Preservation Rules

1. Content before the first marker is always preserved
2. Content after the last marker is always preserved
3. Content between different marker pairs is always preserved
4. Only content within matching marker pairs is updated
5. If no markers exist, content is appended with new markers

Error Handling

• Missing markers: Creates new markers and adds content
• Malformed markers: Reports error, skips that section
• File permissions: Reports error, continues with other files
• Missing source files: Reports which sources are unavailable