BMAD Document Project

BROWNFIELD entry point. When a project already has code, planning skills need ground truth — not guesses about the stack or conventions. This skill performs a systematic, READ-ONLY codebase scan and emits project-documentation.md, the authoritative current-state snapshot that every downstream BMAD planning skill loads.

No code is written, modified, or executed. Allowed tools are Read, Glob, Grep, Write (for the output document only), and TodoWrite (to track scan progress).

Output

bmad-output/project-documentation.md
(or the user-configured output folder — honor it)

Load bmad-output/project-context.md if it exists; merge any constraints already recorded there rather than rediscovering them from scratch.

Three Intents

Ask which intent applies if ambiguous; never silently regenerate an existing document.

Create — initial scan

Use TodoWrite to track the six scan passes below. Complete every pass before writing the final document.

Pass 1 — Repository skeleton

Glob: **/* (depth ≤ 3, exclude node_modules, .git, dist, build, __pycache__, .venv)
Glob: *.md, *.txt, *.rst at root and docs/

Capture: directory tree shape, presence of monorepo markers (packages/, apps/, libs/), top-level config files, documentation roots.

Pass 2 — Stack and toolchain

Read whichever of these exist (don't fail on missing files):

Record: primary language, frameworks, major libraries, runtime version pins, test frameworks (note them — do NOT run them), build tool, package manager.

Pass 3 — Entry points and key flows

Grep: "main\|entrypoint\|app\.listen\|createServer\|handler\|router\|routes"
Grep: "export default\|module\.exports\|@app\.route\|@Controller\|@RestController"

Read the top-level entry files surfaced (max 5–8 files; skim, don't exhaustively read).

Capture: how the app starts, primary routing layer, authentication/middleware chain (names only), background workers or queues detected.

Pass 4 — Module / domain structure

Read directory names and index.* / __init__.* files one level down from src/, app/, lib/, or the equivalent.

Glob: src/**/index.{ts,js,py,go,rb}
Glob: app/**/__init__.py

Capture: module names and inferred responsibility, layer boundaries (controllers / services / repositories / models / utils), shared utilities.

Pass 5 — Conventions and patterns

Sample 3–5 representative files per layer (prefer recently modified if discernible from file names / path depth):

Grep: "class \|interface \|type \|enum " — naming style
Grep: "async \|await \|Promise\|goroutine\|concurrent" — concurrency pattern
Grep: "import \|require\|from " — module resolution style
Grep: "console\.log\|logger\.\|log\." — logging approach
Grep: "\.env\|process\.env\|os\.environ\|config\." — config/secrets pattern

Capture: naming conventions (casing style for files, classes, functions), error handling style, logging approach, config/secrets management, test file location convention (name only — no execution).

Pass 6 — Integration points

Grep: "http[s]\?://\|fetch(\|axios\.\|requests\.\|http\.Get\|RestTemplate"
Grep: "database\|db\.\|pool\.\|prisma\.\|mongoose\.\|sqlx\.\|gorm\."
Grep: "redis\|kafka\|rabbitmq\|sqs\|pubsub\|queue\|event"
Grep: "s3\.\|storage\.\|blob\.\|bucket"

Capture: external HTTP APIs called (domains/service names, not secrets), database type and ORM/driver, message queues or event buses, object storage, third-party services (payment, email, auth providers — names only).

Write the document

Fill ${CLAUDE_PLUGIN_ROOT}/skills/bmad-document-project/templates/project-documentation.template.md → bmad-output/project-documentation.md.

Use the Write tool. Leave sections with a <!-- not detected --> comment rather than inventing content. Accuracy over completeness.

Update — re-scan changed areas

1. Read existing project-documentation.md.
2. Ask the user which areas changed (new module? new dependency? refactor?).
3. Re-run only the relevant passes above for those areas.
4. Edit the document surgically with precise rewrites of changed sections.
5. Append a dated update note at the bottom of the document.

Do NOT regenerate the full document from scratch if only part has changed.

Validate — check completeness

Read the existing project-documentation.md and verify:

• All six scan areas have content (not blank or "not detected" for everything)
• Stack section names the primary language, framework, and major deps
• Entry points section names at least one bootstrap/start file
• Module structure lists recognizable domain names
• Conventions covers naming style and error handling
• Integration points lists external dependencies (or explicitly states "none")
• No fabricated file paths (cross-check one or two with Glob)

Report a pass/fail checklist. Offer to fill gaps rather than silently editing.

Scope Boundary

This skill is READ-ONLY except for its single output document. It:

• Does NOT modify any source file.
• Does NOT run tests, build scripts, linters, or coverage tools.
• Does NOT generate application code, migration files, or fixtures.
• Does NOT implement features or review diffs.

If a scan reveals something worth fixing, record it as a planning note in the document — do not fix it.

Handoff

Once project-documentation.md is written, it becomes the brownfield input for:

• bmad-init — seed project-context.md with the detected stack and constraints.
• bmad-prd — ground truth for existing capabilities and integration constraints.
• bmad-architecture — baseline architecture to evolve rather than design from scratch.
• bmad-tech-spec (Quick Flow) — concrete starting point for a focused spec.

State the recommended next step when the document is ready.

Persona Note

This analysis role aligns with Mary (Business Analyst) in the BMAD Method — start with what exists before prescribing what should change. The document is her field notes: precise, sourced, free of conjecture.

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Part of the BMAD Planning & Orchestrator plugin — a Claude Code harness for the BMAD Method by the BMAD Code Organization (https://github.com/bmad-code-org/BMAD-METHOD). Implements the spirit of bmad-document-project. All methodology credit belongs to the BMAD Code Organization.