Paths: File paths (shared/, references/, ../ln-*) are relative to skills repo root. If not found at CWD, locate this SKILL.md directory and go up one level for repo root.

Project Documentation Coordinator

L2 Coordinator that gathers project context once and delegates document creation to specialized L3 workers.

Purpose & Scope

• Single context gathering — analyzes project once, builds Context Store
• Project type detection — determines hasBackend, hasDatabase, hasFrontend, hasDocker
• Delegates to 5 workers — passes Context Store to each worker
• Aggregates results — collects status from all workers, returns summary
• Solves the "context loss" problem by gathering data once and passing explicitly

Invocation (who/when)

• ln-100-documents-pipeline: Invoked as first L2 coordinator in documentation pipeline
• Never called directly by users

Inputs

From ln-100 (via Phase 0 Legacy Migration):

{
  "LEGACY_CONTENT": {
    "legacy_architecture": { "sections": [...], "diagrams": [...] },
    "legacy_requirements": { "functional": [...] },
    "legacy_principles": { "principles": [...], "anti_patterns": [...] },
    "legacy_tech_stack": { "frontend": "...", "backend": "...", "versions": {} },
    "legacy_api": { "endpoints": [...], "authentication": "..." },
    "legacy_database": { "tables": [...], "relationships": [...] },
    "legacy_runbook": { "prerequisites": [...], "install_steps": [...], "env_vars": [...] },
    "legacy_infrastructure": { "servers": [...], "domains": [...], "ports": {} }
  }
}

LEGACY_CONTENT is passed to workers as base content. Priority: Legacy > Auto-discovery > Template defaults.

Architecture

ln-110-project-docs-coordinator (this skill)
├── Phase 1: Context Gathering (ONE TIME)
├── Phase 2: Delegate to Workers
│   ├── ln-111-root-docs-creator → 4 root docs (ALWAYS)
│   ├── ln-112-project-core-creator → 3 core docs (ALWAYS)
│   ├── ln-113-backend-docs-creator → 2 docs (if hasBackend/hasDatabase)
│   ├── ln-114-frontend-docs-creator → 1 doc (if hasFrontend)
│   └── ln-115-devops-docs-creator → 2 docs (1 always + 1 if hasDocker)
└── Phase 3: Aggregate Results

Workflow

Phase 1: Context Gathering (ONE TIME)

1.1 Auto-Discovery (scan project files):

1.2 Detect Project Type:

1.3 User Materials Request:

• Ask: "Do you have existing materials (requirements, designs, docs)?"
• If provided: Extract answers for Context Store

1.4 MCP Research (for detected technologies):

• Use Context7/Ref for best practices
• Store in Context Store for workers

1.5 Build Context Store:

{
  "PROJECT_NAME": "my-project",
  "PROJECT_DESCRIPTION": "...",
  "TECH_STACK": { "frontend": "React 18", "backend": "Express 4.18", "database": "PostgreSQL 15" },
  "DEPENDENCIES": [...],
  "SRC_STRUCTURE": { "controllers": [...], "services": [...] },
  "ENV_VARIABLES": ["DATABASE_URL", "JWT_SECRET"],
  "DEV_COMMANDS": { "dev": "npm run dev", "test": "npm test" },
  "DOCKER_SERVICES": ["app", "db"],
  "DEPLOYMENT_SCALE": "single",
  "DEVOPS_CONTACTS": [],
  "HAS_GPU": false,
  "SERVER_INVENTORY": [],
  "DOMAIN_DNS": [],
  "ARTIFACT_REPOSITORY": {},
  "HOST_REQUIREMENTS": {},
  "flags": { "hasBackend": true, "hasDatabase": true, "hasFrontend": true, "hasDocker": true }
}

DEPLOYMENT_SCALE detection rules:

• "single" (default): No deploy.replicas, no scaling keywords in README
• "multi": deploy.replicas > 1 OR load balancer mentioned
• "auto-scaling": auto-scaling keywords in README/docker-compose
• "gpu-based": runtime: nvidia in docker-compose

DEVOPS_CONTACTS fallback chain:

1. CODEOWNERS file → extract maintainers
2. package.json author/contributors → extract names/emails
3. git log → top 3 frequent committers
4. If all empty → [TBD: Provide DevOps team contacts]

1.6 Merge Legacy Content (if provided by ln-100):

• Check if LEGACY_CONTENT was passed from ln-100 Phase 0
• If exists, merge into Context Store:

  contextStore.LEGACY_CONTENT = input.LEGACY_CONTENT
  

• Merge priority for workers:
  • LEGACY_CONTENT.legacy_architecture → used by ln-112 for architecture.md
  • LEGACY_CONTENT.legacy_requirements → used by ln-112 for requirements.md
  • LEGACY_CONTENT.legacy_tech_stack → merged with auto-discovered TECH_STACK
  • LEGACY_CONTENT.legacy_principles → used by ln-111 for principles.md
  • LEGACY_CONTENT.legacy_api → used by ln-113 for api_spec.md
  • LEGACY_CONTENT.legacy_database → used by ln-113 for database_schema.md
  • LEGACY_CONTENT.legacy_runbook → used by ln-115 for runbook.md
  • LEGACY_CONTENT.legacy_infrastructure → used by ln-115 for infrastructure.md
• If no LEGACY_CONTENT: workers use auto-discovery + template defaults

Phase 2: Delegate to Workers

2.1 Always invoke (parallel):

• ln-111-root-docs-creator with Context Store
• ln-112-project-core-creator with full Context Store
• ln-115-devops-docs-creator with Context Store (infrastructure.md always; runbook.md internally conditional on hasDocker)

2.2 Conditionally invoke:

• ln-113-backend-docs-creator if hasBackend OR hasDatabase
• ln-114-frontend-docs-creator if hasFrontend

Delegation Pattern:

• Pass Context Store and flags to workers via direct Skill tool invocation
• Wait for completion
• Collect result (created, skipped, tbd_count, validation)

Phase 3: Aggregate Results

1. Collect status from all workers
2. Sum totals: created files, skipped files, TBD markers
3. Report any validation warnings
4. Return aggregated summary to ln-100
5. Include Context Store for subsequent workers (ln-120 needs TECH_STACK)

Output:

{
  "workers_invoked": 5,
  "total_created": 11,
  "total_skipped": 0,
  "total_tbd": 8,
  "validation_status": "OK",
  "files": [
    "CLAUDE.md",
    "docs/README.md",
    "docs/documentation_standards.md",
    "docs/principles.md",
    "docs/project/requirements.md",
    "docs/project/architecture.md",
    "docs/project/tech_stack.md",
    "docs/project/api_spec.md",
    "docs/project/database_schema.md",
    "docs/project/design_guidelines.md",
    "docs/project/infrastructure.md",
    "docs/project/runbook.md"
  ],
  "context_store": {
    "PROJECT_NAME": "...",
    "TECH_STACK": { "frontend": "React 18", "backend": "Express 4.18", "database": "PostgreSQL 15" },
    "DEPENDENCIES": [...],
    "flags": { "hasBackend": true, "hasDatabase": true, "hasFrontend": true, "hasDocker": true }
  }
}

Critical Notes

• Context gathered ONCE — never duplicated in workers
• Context Store passed explicitly — no implicit state
• Workers self-validate — coordinator only aggregates
• Idempotent — workers skip existing files
• Parallel where possible — ln-111 and ln-112 can run in parallel

Documentation Standards (passed to workers)

• NO_CODE Rule: Documents describe contracts, not implementations
• Stack Adaptation: Links must match TECH_STACK (Context Store)
• Format Priority: Tables/ASCII > Lists > Text

Definition of Done

• Context Store built with all discovered data
• Project type flags determined
• All applicable workers invoked
• Results aggregated
• Actuality verified: all document facts match current code (paths, functions, APIs, configs exist and are accurate)
• Summary returned to ln-100

Phase 4: Meta-Analysis

MANDATORY READ: Load shared/references/meta_analysis_protocol.md

Skill type: planning-coordinator. Run after all phases complete. Output to chat using the planning-coordinator format.

Reference Files

• Guides: references/guides/automatic_analysis_guide.md, critical_questions.md, troubleshooting.md

Version: 2.1.0 Last Updated: 2025-01-12