pacifica/.specify/templates/plan-template.md

Implementation Plan: [FEATURE]

Branch: [###-feature-name] | Date: [DATE] | Spec: [link] Input: Feature specification from /specs/[###-feature-name]/spec.md

Execution Flow (/plan command scope)

1. Load feature spec from Input path
   → If not found: ERROR "No feature spec at {path}"
2. Fill Technical Context (scan for NEEDS CLARIFICATION)
   → Detect Project Type from file system structure or context (web=frontend+backend, mobile=app+api)
   → Set Structure Decision based on project type
3. Fill the Constitution Check section based on the content of the constitution document.
4. Evaluate Constitution Check section below
   → If violations exist: Document in Complexity Tracking
   → If no justification possible: ERROR "Simplify approach first"
   → Update Progress Tracking: Initial Constitution Check
5. Execute Phase 0 → research.md
   → If NEEDS CLARIFICATION remain: ERROR "Resolve unknowns"
6. Execute Phase 1 → contracts, data-model.md, quickstart.md, agent-specific template file (e.g., `CLAUDE.md` for Claude Code, `.github/copilot-instructions.md` for GitHub Copilot, `GEMINI.md` for Gemini CLI, `QWEN.md` for Qwen Code or `AGENTS.md` for opencode).
7. Re-evaluate Constitution Check section
   → If new violations: Refactor design, return to Phase 1
   → Update Progress Tracking: Post-Design Constitution Check
8. Plan Phase 2 → Describe task generation approach (DO NOT create tasks.md)
9. STOP - Ready for /tasks command

IMPORTANT: The /plan command STOPS at step 7. Phases 2-4 are executed by other commands:

• Phase 2: /tasks command creates tasks.md
• Phase 3-4: Implementation execution (manual or via tools)

Summary

[Extract from feature spec: primary requirement + technical approach from research]

Technical Context

Language/Version: [e.g., Python 3.11, Swift 5.9, Rust 1.75 or NEEDS CLARIFICATION]
Primary Dependencies: [e.g., FastAPI, UIKit, LLVM or NEEDS CLARIFICATION]
Storage: [if applicable, e.g., PostgreSQL, CoreData, files or N/A]
Testing: [e.g., pytest, XCTest, cargo test or NEEDS CLARIFICATION]
Target Platform: [e.g., Linux server, iOS 15+, WASM or NEEDS CLARIFICATION] Project Type: [single/web/mobile - determines source structure]
Performance Goals: [domain-specific, e.g., 1000 req/s, 10k lines/sec, 60 fps or NEEDS CLARIFICATION]
Constraints: [domain-specific, e.g., <200ms p95, <100MB memory, offline-capable or NEEDS CLARIFICATION]
Scale/Scope: [domain-specific, e.g., 10k users, 1M LOC, 50 screens or NEEDS CLARIFICATION]

Constitution Check

GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.

Modular Architecture Compliance

• Each component has single, well-defined responsibility
• Clear module boundaries with standardized interfaces
• High cohesion within modules, loose coupling between modules
• Self-contained, independently deployable components

Layered Architecture Validation

• Clear separation: Presentation → Business Logic → Data Access
• Each layer communicates only with adjacent layers
• Well-defined interfaces between layers

SOLID Principles Verification

• Single Responsibility: Each class/module has one reason to change
• Open/Closed: Open for extension, closed for modification
• Dependency Inversion: Depend on abstractions, not concretions

Integration-First Design

• Seamless integration with existing systems prioritized
• Configuration-driven behavior where possible
• Minimal disruption to existing workflows

Simplicity Check

• No unnecessary abstractions or over-engineering
• Simpler solution chosen when it meets requirements
• Every design decision justified by business needs

Project Structure

Documentation (this feature)

specs/[###-feature]/
├── plan.md              # This file (/plan command output)
├── research.md          # Phase 0 output (/plan command)
├── data-model.md        # Phase 1 output (/plan command)
├── quickstart.md        # Phase 1 output (/plan command)
├── contracts/           # Phase 1 output (/plan command)
└── tasks.md             # Phase 2 output (/tasks command - NOT created by /plan)

Source Code (repository root)

# [REMOVE IF UNUSED] Option 1: Single project (DEFAULT)
src/
├── models/
├── services/
├── cli/
└── lib/

tests/
├── contract/
├── integration/
└── unit/

# [REMOVE IF UNUSED] Option 2: Web application (when "frontend" + "backend" detected)
backend/
├── src/
│   ├── models/
│   ├── services/
│   └── api/
└── tests/

frontend/
├── src/
│   ├── components/
│   ├── pages/
│   └── services/
└── tests/

# [REMOVE IF UNUSED] Option 3: Mobile + API (when "iOS/Android" detected)
api/
└── [same as backend above]

ios/ or android/
└── [platform-specific structure: feature modules, UI flows, platform tests]

Structure Decision: [Document the selected structure and reference the real directories captured above]

Phase 0: Outline & Research

1. Extract unknowns from Technical Context above:

   • For each NEEDS CLARIFICATION → research task
   • For each dependency → best practices task
   • For each integration → patterns task

2. Generate and dispatch research agents:

   For each unknown in Technical Context:
    Task: "Research {unknown} for {feature context}"
   For each technology choice:
    Task: "Find best practices for {tech} in {domain}"
   

3. Consolidate findings in research.md using format:

   • Decision: [what was chosen]
   • Rationale: [why chosen]
   • Alternatives considered: [what else evaluated]

Output: research.md with all NEEDS CLARIFICATION resolved

Phase 1: Design & Contracts

Prerequisites: research.md complete

1. Extract entities from feature spec → data-model.md:

   • Entity name, fields, relationships
   • Validation rules from requirements
   • State transitions if applicable

2. Generate API contracts from functional requirements:

   • For each user action → endpoint
   • Use standard REST/GraphQL patterns
   • Output OpenAPI/GraphQL schema to /contracts/

3. Generate contract tests from contracts:

   • One test file per endpoint
   • Assert request/response schemas
   • Tests must fail (no implementation yet)

4. Extract test scenarios from user stories:

   • Each story → integration test scenario
   • Quickstart test = story validation steps

5. Update agent file incrementally (O(1) operation):

   • Run .specify/scripts/bash/update-agent-context.sh cursor IMPORTANT: Execute it exactly as specified above. Do not add or remove any arguments.
   • If exists: Add only NEW tech from current plan
   • Preserve manual additions between markers
   • Update recent changes (keep last 3)
   • Keep under 150 lines for token efficiency
   • Output to repository root

Output: data-model.md, /contracts/*, failing tests, quickstart.md, agent-specific file

Phase 2: Task Planning Approach

This section describes what the /tasks command will do - DO NOT execute during /plan

Task Generation Strategy:

• Load .specify/templates/tasks-template.md as base
• Generate tasks from Phase 1 design docs (contracts, data model, quickstart)
• Each contract → contract test task [P]
• Each entity → model creation task [P]
• Each user story → integration test task
• Implementation tasks to make tests pass

Ordering Strategy:

• TDD order: Tests before implementation
• Dependency order: Models before services before UI
• Mark [P] for parallel execution (independent files)

Estimated Output: 25-30 numbered, ordered tasks in tasks.md

IMPORTANT: This phase is executed by the /tasks command, NOT by /plan

Phase 3+: Future Implementation

These phases are beyond the scope of the /plan command

Phase 3: Task execution (/tasks command creates tasks.md)
Phase 4: Implementation (execute tasks.md following constitutional principles)
Phase 5: Validation (run tests, execute quickstart.md, performance validation)

Complexity Tracking

Fill ONLY if Constitution Check has violations that must be justified

Violation	Why Needed	Simpler Alternative Rejected Because
[e.g., 4th project]	[current need]	[why 3 projects insufficient]
[e.g., Repository pattern]	[specific problem]	[why direct DB access insufficient]

Progress Tracking

This checklist is updated during execution flow

Phase Status:

• Phase 0: Research complete (/plan command)
• Phase 1: Design complete (/plan command)
• Phase 2: Task planning complete (/plan command - describe approach only)
• Phase 3: Tasks generated (/tasks command)
• Phase 4: Implementation complete
• Phase 5: Validation passed

Gate Status:

• Initial Constitution Check: PASS
• Post-Design Constitution Check: PASS
• All NEEDS CLARIFICATION resolved
• Complexity deviations documented

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Based on Constitution v1.1.0 - See /memory/constitution.md