---
description: Execute the implementation planning workflow using the plan template to generate design artifacts.
handoffs: 
  - label: Create Tasks
    agent: speckit.tasks
    prompt: Break the plan into tasks
    send: true
  - label: Create Checklist
    agent: speckit.checklist
    prompt: Create a checklist for the following domain...
---

## User Input

```text
$ARGUMENTS
```

You **MUST** consider the user input before proceeding (if not empty).

## Outline

1. **Setup**: Run `.specify/scripts/bash/setup-plan.sh --json` from repo root and parse JSON for FEATURE_SPEC, IMPL_PLAN, SPECS_DIR, BRANCH. For single quotes in args like "I'm Groot", use escape syntax: e.g 'I'\''m Groot' (or double-quote if possible: "I'm Groot").

2. **Load context**: Read `.ai/ROOT.md` and `.ai/PROJECT_MAP.md` to understand the project structure and navigation. Then read required standards: `.ai/standards/constitution.md` and `.ai/standards/semantics.md`. Load IMPL_PLAN template.

3. **Execute plan workflow**: Follow the structure in IMPL_PLAN template to:
   - Fill Technical Context (mark unknowns as "NEEDS CLARIFICATION")
   - Fill Constitution Check section from constitution
   - Evaluate gates (ERROR if violations unjustified)
   - Phase 0: Generate research.md (resolve all NEEDS CLARIFICATION)
   - Phase 1: Generate data-model.md, contracts/, quickstart.md
   - Phase 1: Update agent context by running the agent script
   - Re-evaluate Constitution Check post-design

4. **Stop and report**: Command ends after Phase 2 planning. Report branch, IMPL_PLAN path, and generated artifacts.

## Phases

### 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**:

   ```text
   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

0. **Validate Design against UX Reference**:
    - Check if the proposed architecture supports the latency, interactivity, and flow defined in `ux_reference.md`.
    - **Linkage**: Ensure key UI states from `ux_reference.md` map to Component Contracts (`@UX_STATE`).
    - **CRITICAL**: If the technical plan compromises the UX (e.g. "We can't do real-time validation"), you **MUST STOP** and warn the user.

1. **Extract entities from feature spec** → `data-model.md`:
    - Entity name, fields, relationships, validation rules.

2. **Design & Verify Contracts (Semantic Protocol)**:
    - **Drafting**: Define `[DEF:id:Type]` Headers, Contracts, and closing `[/DEF:id:Type]` for all new modules based on `.ai/standards/semantics.md`.
    - **TIER Classification**: Explicitly assign `@TIER: [CRITICAL|STANDARD|TRIVIAL]` to each module.
    - **CRITICAL Requirements**: For all CRITICAL modules, define full `@PRE`, `@POST`, and (if UI) `@UX_STATE` contracts. **MUST** also define testing contracts: `@TEST_CONTRACT`, `@TEST_FIXTURE`, `@TEST_EDGE`, and `@TEST_INVARIANT`.
    - **Self-Review**:
      - *Completeness*: Do `@PRE`/`@POST` cover edge cases identified in Research? Are test contracts present for CRITICAL?
      - *Connectivity*: Do `@RELATION` tags form a coherent graph?
      - *Compliance*: Does syntax match `[DEF:id:Type]` exactly and is it closed with `[/DEF:id:Type]`?
    - **Output**: Write verified contracts to `contracts/modules.md`.

3. **Simulate Contract Usage**:
    - Trace one key user scenario through the defined contracts to ensure data flow continuity.
    - If a contract interface mismatch is found, fix it immediately.

4. **Generate API contracts**:
    - Output OpenAPI/GraphQL schema to `/contracts/` for backend-frontend sync.

3. **Agent context update**:
   - Run `.specify/scripts/bash/update-agent-context.sh agy`
   - These scripts detect which AI agent is in use
   - Update the appropriate agent-specific context file
   - Add only new technology from current plan
   - Preserve manual additions between markers

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

## Key rules

- Use absolute paths
- ERROR on gate failures or unresolved clarifications
