plankit

Generates structured plan documents from rough feature ideas grounded in the existing codebase.

1|Updated Jul 12, 2026
One-click install
npx skills add https://github.com/mimukit/skills --skill plankit-mimukit
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: plankit
Source: https://github.com/mimukit/skills/tree/main/skills/plankit
Command: npx skills add https://github.com/mimukit/skills --skill plankit-mimukit

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Turning a rough feature idea into an actionable plan usually means scattered notes, uninvestigated assumptions, and documents that ignore what the codebase already does. This Skill produces a structured, codebase-grounded plan document before any code is written, so downstream steps like hardening, issue filing, and implementation have a consistent input. ## Core Features & Use Cases - Codebase-grounded brainstorming: Reads the existing repo to find patterns and utilities the plan should reuse, then proposes genuinely distinct approaches (minimal, ideal, lateral) with a recommendation. - Canonical plan-doc format: Writes docs/plans/plan-<slug>-YYYY-MM-DD.md with Context, Design decisions, Approach, Open questions, and Non-goals sections that downstream skills (grillkit, issuekit, implementkit) read directly. - Workflow handoff: Records open questions for adversarial hardening and hands off to issue filing or phase-by-phase implementation without writing code or creating issues itself. - Use Case: You say "plan this feature" for a new SSO login flow. The Skill reads your auth code, proposes three approaches, settles the structural decisions with you, and writes docs/plans/plan-sso-login-2026-07-23.md ready for hardening. ## Quick Start Ask the agent to plan a feature, for example: "Use plankit to brainstorm and write a plan document for adding SSO login to the app."

Frequently Asked Questions about plankit

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I turn a feature idea into a plan document with an AI agent?

Invoke plankit with a request like "plan this feature" and describe the idea. It asks scoping questions, reads your codebase for reusable patterns, proposes distinct approaches with a recommendation, and writes a structured plan file under docs/plans/.

What is the difference between plankit and grillkit?

plankit is generative: it drafts a coherent plan and records thin spots as open questions. grillkit is adversarial: it pressure-tests those open questions one decision at a time and stamps the plan as grilled once it survives.

Does plankit write code or create GitHub issues?

No. plankit stops at the plan document. Issue filing is handled by issuekit and implementation by implementkit; plankit only hands off to whichever applies and never crosses into those steps itself.

Can I use plankit for a greenfield project with no existing repo?

Yes. In greenfield scenarios it skips code research and grounds the plan in your stated goals and constraints instead. The output format and downstream handoff remain the same.

What if my repo already has its own plan or RFC template?

plankit follows the repository's existing plan, RFC, or PRD location and template rather than forcing docs/plans, and it tells you when it does so.