scaffold-pipeline

name	scaffold-pipeline
description	Static reference for scaffold pipeline ordering, dependencies, and phase structure. Use ONLY for questions about pipeline design, step ordering, or dependency constraints — NOT for status, progress, or "what's next" queries (those go through scaffold-runner).

Scaffold Pipeline Reference

This skill is a static reference for pipeline ordering and dependency constraints. It does NOT handle status checks, progress queries, or navigation.

Activation boundary: If the user asks "where am I?", "what's next?", "pipeline status", or anything about their current progress → do not use this skill. The scaffold-runner skill handles all status/navigation via the scaffold CLI.

Use this skill ONLY when the user asks about:

• Pipeline design: "what phases are there?", "what's the ordering?"
• Dependency rules: "what depends on what?", "can I run X before Y?"
• Step reference: "what commands are in phase 3?", "is design-system optional?"

Phases

16 phases, each with a slug (used in frontmatter) and display name. Canonical source: src/types/frontmatter.ts PHASES constant.

#	Slug	Display Name	Description
0	vision	Product Vision	Transforms your idea into a strategic vision document covering who it's for, what makes it different, and what success looks like.
1	pre	Product Definition	Translates your vision into a PRD with features, personas, and success criteria, then breaks it into user stories with testable acceptance criteria.
2	foundation	Project Foundation	Researches and documents technology choices, creates coding standards with linter configs, defines testing strategy, and designs directory layout.
3	environment	Development Environment	Sets up local dev environment, design system (web only), git workflow with CI and worktrees, automated PR review, and AI memory persistence.
4	integration	Testing Integration	Auto-detects platform and configures E2E testing — Playwright for web, Maestro for mobile. Skips for backend-only.
5	modeling	Domain Modeling	Identifies core concepts (entities, relationships, invariants, events) and establishes a shared vocabulary across all docs and code.
6	decisions	Architecture Decisions	Documents every significant design decision with alternatives and consequences, so future contributors know why.
7	architecture	System Architecture	Designs the system blueprint — components, data flows, module structure, and extension points.
8	specification	Specifications	Creates interface specs: database schema with constraints, API contracts with error codes, UX flows with accessibility. Each conditional.
9	quality	Quality Gates	Reviews testing, generates test skeletons, creates eval checks, designs deployment pipeline, and conducts security review.
10	parity	Platform Parity	Audits documentation for platform-specific gaps. Skips for single-platform projects.
11	consolidation	Consolidation	Optimizes {{INSTRUCTIONS_FILE}} under 200 lines and audits all workflow docs for consistency.
12	planning	Planning	Decomposes stories into concrete tasks scoped to ~150 lines and 3 files max, with clear acceptance criteria.
13	validation	Validation	Seven cross-cutting audits: scope creep, dependency cycles, implementability, traceability, naming drift, broken handoffs, decision completeness.
14	finalization	Finalization	Applies validation findings, freezes docs, creates onboarding guide, and writes the implementation playbook.
15	build	Build	Stateless TDD execution: single/multi-agent modes, session resume, quick tasks, and new feature enhancements.

Pipeline Order

#	Phase	Command	Notes
0.1	Product Vision	/scaffold:create-vision	Interactive — requires user input
0.2	Product Vision	/scaffold:review-vision	Multi-pass vision review
0.3	Product Vision	/scaffold:innovate-vision	(optional) Strategic innovation
1	Product Definition	/scaffold:create-prd	Interactive — requires user input
2	Product Definition	/scaffold:review-prd	Multi-pass PRD review
2.5	Product Definition	/scaffold:innovate-prd	(optional) Feature-level innovation
3	Product Definition	/scaffold:user-stories	Covers every PRD feature
4	Product Definition	/scaffold:review-user-stories	Multi-pass story review; depth 4+ adds requirements index
4.5	Product Definition	/scaffold:innovate-user-stories	(optional) UX-level enhancements
5	Project Foundation	/scaffold:beads	(optional) Creates {{INSTRUCTIONS_FILE}} + task tracking
6	Project Foundation	/scaffold:tech-stack	Drives all technical decisions
7	Project Foundation	/scaffold:coding-standards	References tech-stack.md
8	Project Foundation	/scaffold:tdd	References tech-stack.md + coding-standards.md
9	Project Foundation	/scaffold:project-structure	References all Phase 2 docs
10	Dev Environment	/scaffold:dev-env-setup	Creates lint/test/install commands
11	Dev Environment	/scaffold:design-system	(optional) Frontend projects only
12	Dev Environment	/scaffold:git-workflow	Branching, CI, worktrees, permissions
12.5	Dev Environment	/scaffold:automated-pr-review	(optional) Local CLI or external reviewer
13	Dev Environment	/scaffold:ai-memory-setup	Modular rules, optional MCP memory + external docs
14	Testing Integration	/scaffold:add-e2e-testing	(optional) Playwright (web) and/or Maestro (mobile)
15	Domain Modeling	/scaffold:domain-modeling	Entities, aggregates, events, bounded contexts
16	Domain Modeling	/scaffold:review-domain-modeling	10-pass domain model review
17	Architecture Decisions	/scaffold:adrs	Architecture Decision Records
18	Architecture Decisions	/scaffold:review-adrs	Review for contradictions, missing decisions
19	System Architecture	/scaffold:system-architecture	Components, data flows, module structure
20	System Architecture	/scaffold:review-architecture	Coverage gaps, constraint violations
21	Specifications	/scaffold:database-schema	(optional) Tables, indexes, constraints
22	Specifications	/scaffold:review-database	(optional) Schema review
23	Specifications	/scaffold:api-contracts	(optional) Endpoints, error codes, auth
24	Specifications	/scaffold:review-api	(optional) API contracts review
25	Specifications	/scaffold:ux-spec	(optional) Flows, states, accessibility
26	Specifications	/scaffold:review-ux	(optional) UX spec review
27	Quality Gates	/scaffold:review-testing	Reviews TDD strategy for coverage gaps
27.5	Quality Gates	/scaffold:story-tests	Tagged test skeletons from user story ACs
28	Quality Gates	/scaffold:create-evals	Generates eval checks from standards docs
29	Quality Gates	/scaffold:operations	Deployment, monitoring, incident response
30	Quality Gates	/scaffold:review-operations	Reviews operations runbook
31	Quality Gates	/scaffold:security	Threat model, auth, data protection
32	Quality Gates	/scaffold:review-security	Reviews security posture
33	Platform Parity	/scaffold:platform-parity-review	(optional) Multi-platform projects
34	Consolidation	/scaffold:claude-md-optimization	Run BEFORE workflow-audit
35	Consolidation	/scaffold:workflow-audit	Run AFTER claude-md-optimization
36	Planning	/scaffold:implementation-plan	Creates full task graph
37	Planning	/scaffold:implementation-plan-review	Second pass for quality + multi-model validation (depth 4+)
38	Validation	/scaffold:cross-phase-consistency	Naming, assumptions, interfaces
39	Validation	/scaffold:traceability-matrix	PRD → Stories → Architecture → Tasks
40	Validation	/scaffold:decision-completeness	All decisions recorded and justified
41	Validation	/scaffold:critical-path-walkthrough	End-to-end critical journey trace
42	Validation	/scaffold:implementability-dry-run	Simulate agent picking up tasks
43	Validation	/scaffold:dependency-graph-validation	Verify task DAG is acyclic
44	Validation	/scaffold:scope-creep-check	Specs stay within PRD boundaries
45	Finalization	/scaffold:apply-fixes-and-freeze	Apply findings, freeze docs
46	Finalization	/scaffold:developer-onboarding-guide	"Start here" for new devs/agents
47	Finalization	/scaffold:implementation-playbook	Operational guide for agent execution
48	Execution	/scaffold:single-agent-start	Single-agent TDD execution loop
48	Execution	/scaffold:multi-agent-start	Multi-agent — one per worktree

Phase 15 — Build (stateless, on-demand)

6 steps. Available once Phase 14 is complete. These steps are stateless — they don't track completion state and are always available for repeated use.

Order	Step	Description
1510	single-agent-start	Start single-agent TDD execution loop
1520	single-agent-resume	Resume single-agent work after a break
1530	multi-agent-start	Start multi-agent execution loop in a worktree
1540	multi-agent-resume	Resume multi-agent work after a break
1550	quick-task	Create a focused task for a bug fix, refactor, or small improvement
1560	new-enhancement	Add a new feature to an existing project

Standalone Commands

Command	When to Use
/scaffold:single-agent-resume	Resume work after a break
/scaffold:multi-agent-resume	Resume multi-agent work after a break
/scaffold:new-enhancement	Add a feature to an existing project
/scaffold:quick-task	Create a focused task for a bug fix, refactor, or small improvement
/scaffold:version-bump	Bump version and update changelog without tagging or releasing
/scaffold:release	Run the target project's release ceremony with changelog generation and project-specific release artifacts
/scaffold:prompt-pipeline	Show the full pipeline reference
/scaffold:dashboard	Open visual pipeline dashboard in browser

Execution Model

Two Parallel Tracks

After Phase 1 (Product Definition), the pipeline splits into two independent tracks that can run concurrently. They converge at Phase 12 (Planning).

                           ┌─ Track A: Infrastructure ──────────────────────┐
                           │                                                │
Phase 1                    │  Phase 2 (foundation)                          │
create-prd ─→ review-prd  │    tech-stack → coding-standards → tdd         │
    ↓                      │                     ↓                          │
user-stories               │    project-structure → dev-env-setup           │
    ↓                      │         ↓                                      │
review-user-stories ──┐    │    git-workflow → claude-md-optimization       │
                      │    │         ↓              ↓                       │
                      │    │    ai-memory-setup  workflow-audit              │
                      │    │                                                │
                      │    └────────────────────────────────────────────────┘
                      │
                      │    ┌─ Track B: Domain & Quality ───────────────────┐
                      │    │                                                │
                      └──→ │  Phase 5-8: domain-modeling → adrs →           │
                           │    system-architecture → specs (DB/API/UX)     │
                           │                                                │
                           │  Phase 9: tdd → review-testing → operations    │
                           │    → security (+ reviews for each)             │
                           │                                                │
                           └────────────────────────────────────────────────┘
                                              ↓
                              ┌───────────────┴───────────────┐
                              │   Phase 12: Planning          │
                              │   (convergence point —        │
                              │    depends on both tracks)    │
                              └───────────────┬───────────────┘
                                              ↓
                              Phase 13: Validation (7 parallel checks)
                                              ↓
                              Phase 14: Finalization → Execution

How Order Numbers Work

The order field is a tiebreaker, not a sequence number. Execution order is determined by:

1. Dependency graph (primary) — topological sort ensures prerequisites complete first
2. Order field (secondary) — when multiple steps are eligible simultaneously, lower order runs first

Order numbers are phase-aligned: Phase N uses orders in the N00 range (Phase 1 = 100s, Phase 2 = 200s, etc.). This makes it easy to identify which phase a step belongs to from its order alone.

Which Phases Can Run in Parallel

Steps within the same track that don't depend on each other can run in parallel (in separate sessions/worktrees):

• Track A and Track B are fully independent until Phase 12
• Within Track B, specification steps (Phase 8) can parallelize: DB schema, API contracts, and UX spec all depend on review-architecture but not each other
• Validation steps (Phase 13) all depend on implementation-plan-review but not each other — all 7 can run in parallel

Critical Ordering Constraints

1. Tech Stack before Coding Standards and TDD — they reference it
2. Dev Setup before Git Workflow — Git Workflow references lint/test commands
3. Git Workflow before AI Memory Setup — memory rules are extracted from project docs
4. User Stories before Domain Modeling — domain models derive from stories
5. Domain Modeling → ADRs → Architecture — linear chain through modeling phases
6. Architecture before Specification — DB, API, UX specs derive from architecture (can parallelize)
7. TDD → Review Testing → Operations → Security — quality gate chain
8. Both tracks converge at Implementation Plan — depends on tdd, operations, security, AND review-architecture
9. Quality Gates before Consolidation — consolidation verifies all docs including operations/security
10. Claude.md Optimization before Workflow Audit — optimize first, verify second
11. Implementation Plan Review before Validation — 7 checks run after plan review
12. All 7 Validation checks before Apply Fixes & Freeze — freeze requires all findings
13. Finalization before Execution — agents need frozen docs and playbook

Status & Navigation

For all status, progress, and navigation queries, use the scaffold-runner skill, which delegates to the scaffold CLI:

• scaffold status — current pipeline progress
• scaffold status --compact — show only actionable steps (pending/in-progress)
• scaffold next — next eligible steps
• scaffold list — full pipeline with status indicators
• scaffold skip <step> [<step2>...] --reason "..." — skip one or more steps
• scaffold reset <step> --force — reset a step to re-run it