Creates and reviews executable implementation plans grounded in repository evidence, with vertical slices, explicit decisions, and verification criteria. Use when asked to "plan this feature", "stress-test this plan", "grill me", or "split this into tickets". For architecture use codebase-architecture; for code review use tidy.
Install
npx skills add mblode/agent-skills --skill planningnpx skills add mblode/agent-skills --skill planning -a claude-code -gnpx skills add mblode/agent-skills --skill planning -a codex -ggemini skills install https://github.com/mblode/agent-skills.git --path skills/planninggh skill install mblode/agent-skills planninggit clone --depth 1 https://github.com/mblode/agent-skills /tmp/mblode__agent-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mblode__agent-skills/skills/planning ~/.claude/skills/planning # Claude Code
cp -R /tmp/mblode__agent-skills/skills/planning ~/.agents/skills/planning # Codex, Cursor, Gemini CLI, Copilot, OpenCode