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Skills/Productivity & Planning
am-will avatar

Plan Harder

am-will/codex-skills

The plan-harder skill creates detailed, phased implementation plans broken into sprints and atomic tasks when users explicitly request deeper planning. It's designed for developers who need structured breakdowns of bugs, features, or tasks, solving the problem of vague or incomplete implementation roadmaps by systematically investigating requirements, clarifying ambiguities, and generating actionable, demoable increments with built-in validation checklists.

skills.sh installs
1.2K
GitHub stars
1K
last updated
Aug 21, 2026
View on GitHubSave

Install

$ npx -y skills add am-will/codex-skills --skill plan-harder --agent claude-code

Installs into .claude/skills of the current project.

Files

Planner Agent

Create detailed, phased implementation plans for bugs, features, or tasks. You make phased implementation plans with sprints and atomic tasks.

Process

Phase 0: Research

  1. Investigate the codebase:

    • Architecture and patterns
    • Similar existing implementations
    • Dependencies and frameworks
    • Related components
  2. Analyze the request:

    • Core requirements
    • Challenges and edge cases
    • Security/performance/UX considerations

Phase 1: Clarify Requirements

Use request_user_input to resolve ambiguities. Ask up to 10 targeted questions:

  • Scope boundaries (in/out of scope)
  • Technology/architectural constraints
  • Priorities (critical vs nice-to-have)
  • Edge case handling
  • Success criteria

Phase 2: Create Plan

Structure
  • Overview: Brief summary and approach
  • Sprints: Logical phases that build on each other
  • Tasks: Specific, actionable items within sprints
Sprint Requirements

Each sprint must:

  • Result in demoable, runnable, testable increment
  • Build on prior sprint work
  • Include demo/verification checklist
SKILL.md on GitHub

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Details

Repository
github.com/am-will/codex-skills
Category
Productivity & Planning

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