Plans substantial features through research, approval gates, and phased parallel execution.
npx skills add https://github.com/Takkuya/claude-skills --skill plan-phases-takkuya
Please help me install this Agent Skill. Skill: plan-phases Source: https://github.com/Takkuya/claude-skills/tree/main/plan-phases Command: npx skills add https://github.com/Takkuya/claude-skills --skill plan-phases-takkuya
.plan/<slug>/ folder with specs.md, research.md, decisions.md, an HTML plan overview, and one detailed Markdown file per phase, each gated by explicit user approval. - Phased execution with validation: Fans out parallel agents per task within a phase, reconciles their output, runs tests, then has a blind three-agent validator panel (acceptance, correctness, regressions) review the result before the user sees it. - Use Case: You want to add a major feature to a monorepo. The Skill reads your PRD, scopes research to apps/mobile and services/api, challenges the approach, writes a reviewable HTML plan, then builds phase by phase — stopping for your approval at every gate. ## Quick Start Ask the assistant to plan a new feature or project before writing any code, for example by saying "help me plan this project" or invoking /plan-phases.High-intent search queries and answers about installing and using this skill.
Invoke the plan-phases workflow with a request like "help me plan this project". It reads your product specs, researches the codebase and web in parallel, asks clarifying questions, then writes an HTML plan and per-phase Markdown files for your approval before any code is written.
Each phase is built by parallel task agents, reconciled, tested, and reviewed by a blind validator panel covering acceptance, correctness, and regressions. The phase is marked complete only after tests pass, and the workflow stops for your approval before starting the next phase.
Yes. It detects monorepo layouts such as apps/*, packages/*, and services/*, then asks which areas the feature touches. Research agents are dispatched only within the chosen scope, with cross-cutting dependencies flagged explicitly.
Skip it for bug fixes, small tweaks, or single-file changes — the full research, HTML plan, and approval gates are deliberately heavyweight. It is designed for new projects, major features, refactors, and migrations where a wrong direction is costly.
It creates a .plan/<slug>/ folder containing specs.md, research.md, decisions.md, a plan.html overview, and a phases/ subfolder with one detailed Markdown file per phase plus per-phase validator review files. The folder is working scaffolding and can be gitignored.
v1-ioTransform Linear tickets into structured PRDs and upload them back.
toderianExecutes approved implementation plans phase-by-phase with per-phase commits, independent reviews, and resumable run state.
toderianVerifies completed tasks against acceptance criteria with fresh test runs and independent reviews.
TMI-appsAutomate a three-phase plan, implement, and validate workflow for small tasks.