Docs Ssot

docs-ssot: Documentation SSOT Setup

This skill migrates existing Markdown documentation into a modular Single Source of Truth (SSOT) structure managed by docs-ssot, then builds and validates the output.

When to use this skill

• You have existing documentation (README.md, CLAUDE.md, AGENTS.md, etc.) to manage as SSOT
• You want to set up docs-ssot in a new or existing repository
• You want to regenerate documentation after editing source templates

Workflow

Step 1 — Check prerequisites

Verify docs-ssot is installed:

docs-ssot version

If not installed:

# Homebrew (macOS/Linux)
brew tap hiromaily/tap && brew install docs-ssot

# or Go install
go install github.com/hiromaily/docs-ssot/cmd/docs-ssot@latest

Step 2 — Identify existing documentation files

List Markdown files in the repository root:

ls *.md

Common candidates: README.md, CLAUDE.md, AGENTS.md, CONTRIBUTING.md

Step 3 — Preview the migration plan

Run a dry-run to see what sections will be created without writing any files:

docs-ssot migrate --dry-run README.md CLAUDE.md

Review the output to understand:

• How many sections will be created and their categories
• Which sections are detected as duplicates (shared across files)
• The proposed template structure under template/sections/ and template/pages/

Step 4 — Run the migration

Migrate the identified files:

docs-ssot migrate README.md CLAUDE.md AGENTS.md

This will:

1. Split each file by H2 headings into section files under template/sections/<category>/
2. Create template files under template/pages/ with @include directives
3. Create or update docsgen.yaml with build targets
4. Verify round-trip: build and compare output against originals

Step 5 — Review the generated structure

docs-ssot index

Inspect:

• template/sections/ — modular section files (edit these, not the generated outputs)
• template/pages/*.tpl.md — template files defining document structure
• docsgen.yaml — build targets mapping templates to output files

Step 6 — Build documentation

Regenerate all output files from the templates:

docs-ssot build
# or, if a Makefile target exists:
make docs

Step 7 — Validate

Check that all include directives resolve correctly:

docs-ssot validate

Step 8 — Check for SSOT violations

Scan for near-duplicate sections that should be merged into a single source:

docs-ssot check

If duplicates are found, consolidate the content into one section file under template/sections/ and update the templates to reference it with @include.

Key Commands Reference

Editing documentation after migration

After migration, the ongoing workflow is:

1. Edit source files in template/sections/
2. Run docs-ssot build to regenerate outputs
3. Verify with git diff README.md

Never edit README.md, CLAUDE.md, or AGENTS.md directly — they are overwritten on every build.

docsgen.yaml structure

targets:
  - input: template/pages/README.tpl.md
    output: README.md
  - input: template/pages/CLAUDE.tpl.md
    output: CLAUDE.md

Add or remove targets to control which output files are generated.

Include directive syntax

Templates use include directives to compose sections:

<!-- @include: sections/project/overview.md -->
<!-- @include: sections/development/ -->
<!-- @include: sections/**/*.md level=+1 -->

The optional level=+N parameter adjusts heading depth of the included content.