speckit-plan

name	speckit-plan
description	Execute the implementation planning workflow using the plan template to generate design artifacts.
argument-hint	Optional guidance for the planning phase
compatibility	Requires spec-kit project structure with .specify/ directory
metadata	{"author":"github-spec-kit","source":"templates/commands/plan.md"}
user-invocable	true
disable-model-invocation	false

User Input

$ARGUMENTS

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

Pre-Execution Checks

Check for extension hooks (before planning):

• Check if .specify/extensions.yml exists in the project root.
• If it exists, read it and look for entries under the hooks.before_plan key
• If the YAML cannot be parsed or is invalid, skip hook checking silently and continue normally
• Filter out hooks where enabled is explicitly false. Treat hooks without an enabled field as enabled by default.
• For each remaining hook, do not attempt to interpret or evaluate hook condition expressions:
  • If the hook has no condition field, or it is null/empty, treat the hook as executable
  • If the hook defines a non-empty condition, skip the hook and leave condition evaluation to the HookExecutor implementation
• When constructing slash commands from hook command names, replace dots (.) with hyphens (-). For example, speckit.git.commit → /speckit-git-commit.
• For each executable hook, output the following based on its optional flag:
  • Optional hook (optional: true):

    ## Extension Hooks
    
    **Optional Pre-Hook**: {extension}
    Command: `/{command}`
    Description: {description}
    
    Prompt: {prompt}
    To execute: `/{command}`
    

  • Mandatory hook (optional: false):

    ## Extension Hooks
    
    **Automatic Pre-Hook**: {extension}
    Executing: `/{command}`
    EXECUTE_COMMAND: {command}
    
    Wait for the result of the hook command before proceeding to the Outline.
    

    After emitting the block above you MUST actually invoke the hook and wait for it to finish before continuing. Run it the same way you would run the command yourself in this agent/session (the invocation may differ from the literal {command} id shown above, e.g. a skills-mode agent runs it as /skill:speckit-... or $speckit-...). Emitting the block alone does not run the hook.
• If no hooks are registered or .specify/extensions.yml does not exist, skip silently

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 FEATURE_SPEC and .specify/memory/constitution.md. Load IMPL_PLAN template (already copied).

3. Execute Nunchi's existing-slice 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)
   • Resolve every NEEDS CLARIFICATION inside the existing plan.md
   • Record entity, interface, validation-guide, and ordinary-path target planning inside the existing plan.md
   • Do not create research.md, data-model.md, contracts/, or quickstart.md inside the bound slice
   • Re-evaluate Constitution Check post-design

Mandatory Post-Execution Hooks

You MUST complete this section before reporting completion to the user.

Check if .specify/extensions.yml exists in the project root.

• If it does not exist, or no hooks are registered under hooks.after_plan, skip to the Completion Report.
• If it exists, read it and look for entries under the hooks.after_plan key.
• If the YAML cannot be parsed or is invalid, skip hook checking silently and continue to the Completion Report.
• Filter out hooks where enabled is explicitly false. Treat hooks without an enabled field as enabled by default.
• For each remaining hook, do not attempt to interpret or evaluate hook condition expressions:
  • If the hook has no condition field, or it is null/empty, treat the hook as executable
  • If the hook defines a non-empty condition, skip the hook and leave condition evaluation to the HookExecutor implementation
• When constructing slash commands from hook command names, replace dots (.) with hyphens (-). For example, speckit.git.commit → /speckit-git-commit.
• For each executable hook, output the following based on its optional flag:
  • Mandatory hook (optional: false) — You MUST emit EXECUTE_COMMAND: for each mandatory hook:

    ## Extension Hooks
    
    **Automatic Hook**: {extension}
    Executing: `/{command}`
    EXECUTE_COMMAND: {command}
    

    After emitting the block above you MUST actually invoke the hook and wait for it to finish before continuing. Run it the same way you would run the command yourself in this agent/session (the invocation may differ from the literal {command} id shown above, e.g. a skills-mode agent runs it as /skill:speckit-... or $speckit-...). Emitting the block alone does not run the hook.
  • Optional hook (optional: true):

    ## Extension Hooks
    
    **Optional Hook**: {extension}
    Command: `/{command}`
    Description: {description}
    
    Prompt: {prompt}
    To execute: `/{command}`
    

Completion Report

Command ends after design planning. Report the bound slice, branch, IMPL_PLAN path, and the ordinary repository paths planned for later authorized work.

Phases

Nunchi Existing-Slice Override (NON-NEGOTIABLE)

This installed skill is customized for Nunchi's control-plane-only boundary. The bound slice already exists. You MUST update its existing plan.md only. You MUST NOT create or replace a feature, create research.md, or generate data-model.md, contracts/, quickstart.md, product schemas, runnable docs, tests, evals, evidence, or source under .specify/ or specs/.

Phase 0: Outline & Research in plan.md

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 the existing plan.md using format:

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

Output: existing plan.md with all NEEDS CLARIFICATION resolved

Phase 1: Design and Ordinary-Path Targets

Prerequisites: planning research in plan.md complete

1. Extract entities from feature spec into the relevant plan.md sections:

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

2. Plan interface contracts (if the slice has external interfaces):

   • Identify what interfaces the project exposes to users or other systems
   • Document the contract format appropriate for the project type
   • Examples: public APIs for libraries, command schemas for CLI tools, endpoints for web services, grammars for parsers, UI contracts for applications
   • Name exact future ordinary paths under schemas/; do not create them during planning

3. Plan validation and runnable guidance:

   • Document runnable validation scenarios that prove the feature works end-to-end
   • Include prerequisites, setup commands, test/run commands, and expected outcomes
   • Use links or references to contracts and data model details instead of duplicating them
   • Do not include full implementation code, model/service/controller bodies, migrations, or complete test suites
   • Name exact future paths under tests/, evals/, evidence/, and docs/; do not create those artifacts during planning

4. Complete the documentation-impact matrix in plan.md, naming README.md and every known affected ordinary document with UPDATE, evidence-backed NO_IMPACT, or exact-owner HANDOFF.

Output: the existing plan.md only

Key rules

• Use absolute paths for filesystem operations; use project-relative paths for references in documentation
• ERROR on gate failures or unresolved clarifications

Done When

• Existing bound slice plan updated without creating managed product artifacts
• Extension hooks dispatched or skipped according to the rules in Mandatory Post-Execution Hooks above
• Completion reported with bound slice, branch, plan path, and planned ordinary targets