Agent skill

spec-driven-lifecycle

Coordinates spec-driven development lifecycle from Epic -> Sprint -> Story -> Architecture -> Development -> QA -> Release with structural anti-skip enforcement. Manages story lifecycle across 11 workflow states, enforces 4 quality gates, and orchestrates skill invocation. Replaces spec-driven-lifecycle as the unified lifecycle coordinator. Use when starting sprints, managing story workflow progression, auditing deferrals, running sprint retrospectives, or coordinating multi-story releases. Always use this skill when /orchestrate, /create-sprint, or /audit-deferrals is invoked.

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Forks 31

Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/spec-driven-lifecycle

SKILL.md

Spec-Driven Lifecycle

Coordinate the complete story lifecycle from Backlog through Released, enforcing quality gates at every transition and invoking specialized skills at the right time.

Context files are THE LAW: tech-stack.md, source-tree.md, dependencies.md, coding-standards.md, architecture-constraints.md, anti-patterns.md

If ambiguous or conflicts detected: HALT and use AskUserQuestion


Execution Model

This skill expands inline. After invocation, execute Phase State Initialization immediately. Do not wait passively, ask permission, or offer execution options.

Self-Check (if ANY box is true = VIOLATION):

  • Stopping to ask about token budget
  • Stopping to offer execution options
  • Waiting passively for results
  • Asking "should I execute this?"

IF any box checked: EXECUTION MODEL VIOLATION. Go directly to Phase State Initialization now.


Anti-Skip Enforcement Contract

This skill enforces 4 independent anti-skip layers. ALL FOUR must fail for a step to be skipped:

  1. Fresh-context subagent execution - Subagents run in isolated context without accumulated bias
  2. Binary CLI gates - Compiled Rust in src/commands/phase.rs, cannot be forged by LLM
  3. Hook enforcement - Shell scripts in .claude/hooks/ run outside LLM control
  4. Step registry + artifact verification - .claude/hooks/phase-steps-registry.json tracks every mandatory step

Execute-Verify-Gate Pattern: Every mandatory step in every phase file has three parts:

  • EXECUTE: The exact action to perform
  • VERIFY: How to confirm the action happened (Glob, Grep, exit code, Task result)
  • RECORD: CLI command to record completion (devforgeai-validate phase-record)

Token Optimization Bias is PROHIBITED. Do not skip, compress, or shortcut any step. Every phase step exists because a previous failure proved it necessary. (Reference: RCA-001, RCA-002)


Parameter Extraction

Extract parameters from conversation context. See references/parameter-extraction.md for the extraction algorithm.

Command Integration

Context Marker Set By Description
$STORY_ID /orchestrate Story identifier (STORY-NNN)
**Operation:** plan-sprint /create-sprint Sprint planning mode trigger
**Command:** audit-deferrals /audit-deferrals Audit deferrals mode trigger
**Sprint Name:** {name} /create-sprint Sprint name for planning
**Selected Stories:** {ids} /create-sprint Story IDs for sprint
**Duration:** {days} days /create-sprint Sprint duration
**Start Date:** {date} /create-sprint Sprint start date
**Epic:** {id} /create-sprint Epic linkage
**Auto-Resume:** Enabled /orchestrate Checkpoint resume flag

Phase State Initialization [MANDATORY FIRST]

bash
devforgeai-validate phase-init ${STORY_ID} --project-root=.
Exit Code Meaning Action
0 New workflow State file created. Set CURRENT_PHASE = "01".
1 Existing workflow Resume. Run devforgeai-validate phase-status ${STORY_ID} to get CURRENT_PHASE.
2 Invalid story ID HALT. Must match STORY-XXX pattern.
127 CLI not installed Continue without enforcement (backward compatibility).

Iteration counter: iteration_count = 1, max_iterations = 5. If resuming, read from phase-state.json.

Note: For Sprint Planning and Audit Deferrals modes, use a synthetic ID (e.g., SPRINT-{name} or AUDIT-{timestamp}) if no story ID is available.


Mode Router [MANDATORY - AFTER Phase State Initialization]

Detect operating mode from conversation context markers. Mode determines which phases execute.

Priority order: Sprint > Audit > Story > Default (first match wins)

1. IF "**Operation:** plan-sprint" found in conversation:
   MODE = "sprint-planning"
   PHASE_SEQUENCE = [01, 03S, 08]
   Display: "Mode: Sprint Planning"

2. ELSE IF "**Command:** audit-deferrals" found in conversation:
   MODE = "audit-deferrals"
   PHASE_SEQUENCE = [01, 03A, 04A, 08]
   Display: "Mode: Audit Deferrals"

3. ELSE IF "**Story ID:** STORY-NNN" found in conversation:
   MODE = "story-management"
   PHASE_SEQUENCE = [01, 02, 03, 04, 05, 06, 07, 08]
   Display: "Mode: Story Management"

4. ELSE:
   MODE = "default"
   Read references/mode-detection.md for inference logic.
   IF inference fails:
     HALT with AskUserQuestion:
       Question: "Cannot determine operating mode. What would you like to do?"
       Header: "Mode"
       Options:
         - label: "Orchestrate a story"
           description: "Manage story lifecycle (dev -> QA -> release)"
         - label: "Plan a sprint"
           description: "Create a sprint with story selection"
         - label: "Audit deferrals"
           description: "Audit deferred work in completed stories"
       multiSelect: false

See references/mode-detection.md for complete detection algorithm and edge cases.


Phase Orchestration Loop

FOR phase_id in PHASE_SEQUENCE:

    1. ENTRY GATE: devforgeai-validate phase-check ${STORY_ID} --from={prev} --to={phase_id}
       IF exit != 0: HALT

    2. LOAD: Read(file_path="phases/{phase_files[phase_id]}")

    3. EXECUTE: Follow every step in the phase file (EXECUTE-VERIFY-GATE triplets)
       - Each step's EXECUTE instruction tells you exactly what to do
       - Each step's VERIFY instruction tells you how to confirm it happened
       - Each step's RECORD instruction tells you what CLI command to call

    4. RECORD: devforgeai-validate phase-record ${STORY_ID} --phase={phase_id} --subagent={name}

    5. EXIT GATE: devforgeai-validate phase-complete ${STORY_ID} --phase={phase_id} --checkpoint-passed
       IF exit != 0: HALT

Story Management Mode Phases (01-08)

Phase Name File
01 Pre-Flight Validation phases/phase-01-preflight.md
02 Checkpoint Detection phases/phase-02-checkpoint.md
03 Story Validation phases/phase-03-story-validation.md
04 Skill Invocation phases/phase-04-skill-invocation.md
05 Status Update phases/phase-05-status-update.md
06 QA Retry Loop phases/phase-06-qa-retry.md
07 Next Action phases/phase-07-next-action.md
08 Finalization phases/phase-08-finalization.md

Sprint Planning Mode Phases (01, 03S, 08)

Phase Name File
01 Pre-Flight Validation phases/phase-01-preflight.md
03S Sprint Planning phases/phase-03S-sprint-planning.md
08 Finalization phases/phase-08-finalization.md

Audit Deferrals Mode Phases (01, 03A, 04A, 08)

Phase Name File
01 Pre-Flight Validation phases/phase-01-preflight.md
03A Audit Deferrals phases/phase-03A-audit-deferrals.md
04A Hook Integration phases/phase-04A-hook-integration.md
08 Finalization phases/phase-08-finalization.md

Sprint Retrospective Mode Phases (01, 03R, 08)

Phase Name File
01 Pre-Flight Validation phases/phase-01-preflight.md
03R Sprint Retrospective phases/phase-03R-retrospective.md
08 Finalization phases/phase-08-finalization.md

Required Subagents Per Phase

Phase Required Subagents Enforcement
01 (none) N/A
02 (none) N/A
03 (none) N/A
04 (skills invoked: spec-driven-dev, spec-driven-qa, spec-driven-release) BLOCKING
05 (none) N/A
06 (none - delegates to skills) N/A
07 (none) N/A
08 (none) N/A
03S sprint-planner BLOCKING
03A deferral-validator BLOCKING
04A (none) N/A
03R technical-debt-analyzer BLOCKING

Deviation Protocol: Any skip requires explicit user consent via AskUserQuestion. See references/troubleshooting.md.


Workflow States

Stories progress through 11 sequential states:

Backlog -> Architecture -> Ready for Dev -> In Development -> Dev Complete ->
QA In Progress -> [QA Approved | QA Failed] -> Releasing -> Released

See references/workflow-states.md for complete state definitions. See references/state-transitions.md for valid transitions, prerequisites, and quality gate requirements.


Quality Gate Enforcement

Four gates block workflow progression when requirements not met:

Gate Transition Key Requirements
Gate 1: Context Validation Architecture -> Ready for Dev 6 context files present and valid
Gate 2: Test Passing Dev Complete -> QA In Progress All tests pass, coverage 95%/85%/80%
Gate 3: QA Approval QA Approved -> Releasing All ACs verified, no unresolved deferrals
Gate 4: Release Readiness Releasing -> Released Smoke tests pass, rollback plan documented

See references/quality-gates.md for complete gate requirements and enforcement logic.


State Persistence

Location: devforgeai/workflows/${STORY_ID}-phase-state.json


Workflow Completion Validation

Story Management mode:
  IF completed_count < 8: HALT "WORKFLOW INCOMPLETE - {completed_count}/8 phases"
  IF completed_count == 8: "All 8 phases completed - Workflow validation passed"

Sprint Planning mode:
  IF completed_count < 3: HALT "WORKFLOW INCOMPLETE - {completed_count}/3 phases"

Audit Deferrals mode:
  IF completed_count < 4: HALT "WORKFLOW INCOMPLETE - {completed_count}/4 phases"

IF iteration_count >= 4: Display "Approaching limit" IF iteration_count >= max_iterations: HALT "Maximum iterations reached"


Success Criteria

Story Management Mode

  • Story progresses through appropriate workflow states
  • Skills invoked at correct transition points
  • Quality gates enforced at every transition
  • Status history updated with complete timeline
  • Story status reflects actual completion state

Sprint Planning Mode

  • Sprint file created in devforgeai/specs/Sprints/
  • Stories updated to "Ready for Dev" status
  • Capacity validated within 20-40 point range

Audit Deferrals Mode

  • All QA Approved and Released stories scanned
  • Deferrals categorized (resolvable, valid, invalid)
  • Audit report generated and saved
  • Hooks invoked if eligible

Reference Files

Phase Execution (phases/ directory)

File Phase Mode
phase-01-preflight.md Pre-Flight Validation All
phase-02-checkpoint.md Checkpoint Detection Story
phase-03-story-validation.md Story Validation Story
phase-03S-sprint-planning.md Sprint Planning Sprint
phase-03A-audit-deferrals.md Audit Deferrals Audit
phase-03R-retrospective.md Sprint Retrospective Retro
phase-04-skill-invocation.md Skill Invocation Story
phase-04A-hook-integration.md Hook Integration Audit
phase-05-status-update.md Status Update Story
phase-06-qa-retry.md QA Retry Loop Story
phase-07-next-action.md Next Action Story
phase-08-finalization.md Finalization All

Supporting References (references/ directory)

File Purpose
parameter-extraction.md Parameter extraction algorithm
mode-detection.md Mode detection logic and context markers
workflow-states.md 11 state definitions
state-transitions.md Valid transitions and rules
quality-gates.md 4 gate requirements and enforcement
story-management.md Story lifecycle procedures
subagent-registry.md Subagent coordination patterns
troubleshooting.md Common issues and solutions
error-handling-patterns.md Error recovery patterns
deferred-tracking.md Technical debt tracking and analysis
user-input-guidance.md AskUserQuestion templates and patterns

Asset Templates (assets/templates/ directory)

File Purpose
sprint-template.md Sprint document template
story-template.md Story document template
technical-debt-register-template.md Debt register template

Common Issues

Top 5 issues and quick solutions:

  1. Mode detection fails - Check context markers match expected format (see references/mode-detection.md)
  2. Checkpoint not detected - Verify Status History format in story file (see references/workflow-states.md)
  3. Quality gate blocks - Review gate requirements for the specific transition (see references/quality-gates.md)
  4. QA retry exceeds 3 - Address root cause, consider splitting story (see phase-06-qa-retry.md)
  5. Sprint capacity exceeded - Remove lower-priority stories or adjust capacity (see phase-03S-sprint-planning.md)

See references/troubleshooting.md for comprehensive troubleshooting guide.

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