Kickoff

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Kit Preamble — kickoff

Kit Script Root

Kit root: ${CLAUDE_PLUGIN_ROOT}

• Absolute path above → plugin install (substituted at load time; no project scripts/ dir): prefix every kit script command with it, e.g. bash <kit-root>/scripts/checkpoint.sh …. Absolute paths also work from worktrees.
• Literal ${…} placeholder above → standalone layout: run commands as written.

Project Context Detection

Run these checks silently at the start. Use results to adapt behavior:

• [ -f issues.md ] — if true, this project uses the sprint system. Respect issue numbering and STATUS.md.
• [ -f docs/sprint_state.md ] — if true and Status shows running, a sprint is active. Be aware of parallel work in worktrees.
• [ -f docs/prd_digest.md ] — if true, read it for quick project context before starting.

Kit Rules

• Verify gh auth status before any GitHub operation.

Checkpoint Verification Pattern

Every phase has a checkpoint. Run the verification command and check the exit code.

• Exit non-zero (blocking gate): STOP immediately, report failure, do NOT proceed.
• Exit 0 with an ADVISORY: line (advisory gate): report the gap, self-correct, continue. Standard prefix:

bash scripts/checkpoint.sh

Append --skill <name> --phase <phase> --issue <ID> for the specific check. checkpoint.sh resolves the main repo root internally, so the command stays a single prefix-matchable form (safe to allowlist as Bash(bash scripts/checkpoint.sh *)).

Worktree Setup Pattern

Pipeline skills operate in git worktrees to isolate changes from main.

• Create + freeze: WT="$(bash scripts/wt_setup.sh <branch>)" — creates the worktree via scripts/worktree.sh create and writes .claude-kit/freeze-dir.txt inside it in a single step.
• Resolve main root: bash scripts/worktree.sh root
• Remove safely: bash scripts/wt_cleanup.sh <branch> — cd's to main root inside a subshell, then removes the worktree (never leaves CWD dangling). All file operations happen inside $WT/. Shared files live on main only.

Registry Update Pattern

Shared files (issues.md, STATUS.md, CHANGELOG.md) are managed on main only. Always use registry_edit.sh for concurrent-safe writes — it resolves the main repo root internally and delegates to flock_edit.sh:

bash scripts/registry_edit.sh issues.md -- bash -c '<update command>'

Never commit these files to feature branches.

Algorithm

Phase 1 — Setup

1. Ensure docs/ directory exists.
2. Read PRD ($ARGUMENTS or PRD.md). If not found, stop immediately and report.
3. Read existing project files if any (README, pyproject.toml, etc.) to understand tech stack context.

Phase 1.5 — PRD Digest (MUST run before Phase 2)

Regardless of PRD length, always generate a summary with the following structure and save it to docs/prd_digest.md:

• Goals (3 lines or fewer)
• Target User (1 line)
• Must-have Features (numbered list, 1 line each)
• Key NFRs (numbered list, 1 line each)
• Scope Boundaries (In/Out, 3 lines or fewer each)

When passing context to subsequent subagents: include both the original PRD and docs/prd_digest.md.

CHECKPOINT — MANDATORY — NEVER SKIP Verify docs/prd_digest.md exists and contains all required sections (Goals, Target User, Must-have Features, Key NFRs, Scope Boundaries). If the file is missing or any section is empty: STOP and regenerate before proceeding.

Phase 2 — Run Subagents (dependency-aware, parallel where possible)

Step 1: requirement-analyst → docs/requirements.md

• Context to pass: Full PRD content + docs/prd_digest.md
• Agent produces: Goals, prioritized user stories with AC, FRs, NFRs with measurable targets, scope, assumptions, risks
• Verify output exists before proceeding

CHECKPOINT — MANDATORY — NEVER SKIP Verify docs/requirements.md exists and contains Goals, User Stories, and NFRs sections. If missing or incomplete: STOP and retry the requirement-analyst subagent before proceeding.

Step 2 & 3 — MUST invoke both subagents simultaneously via two parallel Task tool calls in a single message: Both agents depend on requirements but NOT on each other. Run them in parallel to save ~5-8 minutes.

ux-designer → docs/ux_spec.md

• Context to pass: PRD + docs/prd_digest.md + docs/requirements.md
• Agent produces: IA, key flows with error paths, screen list with 5 states each, copy guidelines, accessibility notes

architect → docs/architecture.md

• Context to pass: PRD + docs/prd_digest.md + docs/requirements.md
• Note: ux_spec is NOT available yet (running in parallel). Architect focuses on tech stack and module design from requirements. UX-driven API refinements happen during implementation.
• Agent produces: Tech stack, modules, data model, API design, security, deployment, tradeoffs table

After both Task calls return, verify both outputs exist before proceeding.

CHECKPOINT — MANDATORY — NEVER SKIP Verify both docs/ux_spec.md and docs/architecture.md exist.

• docs/ux_spec.md must contain Key Flows and screen definitions.
• docs/architecture.md must contain tech stack and module design. If either file is missing or empty: STOP and retry the failed subagent before proceeding.

Step 4: data-modeler → docs/data_model.md

• Context to pass: PRD + docs/prd_digest.md + docs/requirements.md + docs/ux_spec.md + docs/architecture.md
• Agent produces: Access patterns, detailed schema (tables, columns, types, constraints), indexes with justification, migration strategy, seed data, query patterns, scaling notes
• Verify output exists before proceeding

CHECKPOINT — MANDATORY — NEVER SKIP Verify docs/data_model.md exists and contains schema definitions with tables, columns, and types. If missing or incomplete: STOP and retry the data-modeler subagent before proceeding.

Step 5 & 6 — MUST invoke both subagents simultaneously via two parallel Task tool calls in a single message (no dependency between them):

planner → issues.md

• Context to pass: PRD + docs/prd_digest.md + docs/requirements.md + docs/ux_spec.md + docs/architecture.md + docs/data_model.md + recalled review lessons (native memory; passed in your prompt when you run as a subagent)
• Agent produces: Issues sized 0.5d–1.5d with AC, tests, dependencies, implementation notes
• Instruct the planner to set the UI field on each issue: true if the issue involves UI/frontend work (screens, components, styling, user-facing interactions), false otherwise.

qa-designer → docs/test_plan.md

• Context to pass: PRD + docs/prd_digest.md + docs/requirements.md + docs/ux_spec.md + docs/architecture.md + docs/data_model.md
• Agent produces: Risk matrix, critical flow test cases, edge cases, fixtures, automation candidates, smoke checklist

After both Task calls return, verify both outputs exist before proceeding to Phase 3.

CHECKPOINT — MANDATORY — NEVER SKIP Verify both issues.md and docs/test_plan.md exist.

• issues.md must contain at least one ### ISSUE- block with AC and metadata fields.
• docs/test_plan.md must contain Strategy and Critical Flows sections. If either file is missing or empty: STOP and retry the failed subagent before proceeding.

Phase 3 — Supporting Documents

4. Create/update docs/README.md:
   • Project name and description (from PRD)
   • Prerequisites (from architecture tech stack)
   • Setup instructions (install, configure, run)
   • Test instructions
5. Create/update STATUS.md:
   • Current milestone (from PRD goals)
   • Issue summary (total, by priority, by track)
   • Key risks (from requirements)
   • Next issues to implement (top 3 P0 issues)

Phase 4 — Verification

6. Run scripts/validate_issues.py issues.md to validate issue quality:
   • If violations are found, re-invoke the planner subagent once with the violation list and ask it to fix the issues.
   • If violations remain after the retry, log them in STATUS.md under ## Warnings and proceed. 6.5) Cross-document validation — verify consistency between subagent outputs:
   • data_model ↔ architecture: Entity names in docs/data_model.md should match the data model overview in docs/architecture.md. Flag mismatches.
   • issues ↔ requirements: Every FR/NFR referenced in issues.md (PRD-Ref field) should exist in docs/requirements.md. Flag dangling references.
   • test_plan ↔ requirements: Critical flows in docs/test_plan.md should map to high-priority requirements. Flag uncovered Must-have FRs.
   • ux_spec ↔ requirements: Every user story in docs/requirements.md should have at least one screen or flow in docs/ux_spec.md. Flag orphans.
   • If mismatches are found: log them in STATUS.md under ## Cross-Validation Warnings and proceed. These are informational — they do NOT block the pipeline.
7. Verify all required outputs exist:
   • docs/requirements.md
   • docs/ux_spec.md
   • docs/architecture.md
   • docs/data_model.md
   • docs/test_plan.md
   • issues.md
   • STATUS.md
8. Report summary to the user:
   • Number of FRs/NFRs identified
   • Number of screens in UX spec
   • Architecture style chosen
   • Number of issues created
   • Suggest next step: /uiux (web UI project), /mobile-uiux (mobile app project), or /implement ISSUE-001

Subagent Invocation Pattern

When invoking each subagent via the Task tool:

• Include the agent name in the prompt (e.g., "You are the requirement-analyst agent")
• Pass the full content of input documents — do NOT just pass file paths
• Specify the exact output file path
• Include: "Write your output to docs/<file>.md. Follow your agent guidelines precisely."

Error Handling

• If a subagent fails (Task tool returns error):
  1. Retry the failed subagent once with the same context.
  2. If it fails again, skip with a warning message and continue with remaining subagents.
  3. Log the skipped subagent in STATUS.md under a ## Warnings section.
• If the PRD file is not found: stop immediately and report the missing path.
• If docs/ cannot be created: stop immediately and report the filesystem error.
• If a subagent produces empty or malformed output: treat as failure, retry once.

Rollback

• Kickoff is additive (writes new files); no destructive rollback is needed.
• If partially completed, re-running /kickoff overwrites all outputs — safe to retry.
• If a subagent was skipped, re-run /kickoff after fixing the root cause to regenerate the missing document.

Guidelines

• The dependency order is critical: requirements → (UX + architecture in parallel) → data model → (planner + QA in parallel).
• ux-designer + architect MUST be invoked in parallel: Both subagents only need requirements and have no dependency on each other.
• planner + QA MUST be invoked in parallel: Both subagents have no dependency on each other, so they must be executed as two Task tool calls simultaneously in a single message.
• Each subagent should receive ALL prior outputs as context for maximum coherence.
• Do NOT modify subagent outputs after they are written — each agent owns its document.
• PRD Digest is always generated in Phase 1.5 (no length condition). Individual subagents should not create their own summaries.