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@cniska
Last active April 27, 2026 13:01
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Plan Skill
name plan
description Design a feature or behavior change through dialogue. Use when asked to plan, scope, design, or break down work before coding.

Plan

Design a feature or behavior change through dialogue. The plan emerges from the conversation, not in isolation.

If an issue number is given, fetch it with gh issue view $ARGUMENTS and use it as the starting point.

Have a design conversation about this task. Read the relevant code, share what you find, say what you think, and let the user shape the direction. The plan emerges from the dialogue — do not build it in isolation.

If a question can be answered by reading the code, read the code instead of asking.

Ground every recommendation in current code, docs, and project rules.

Task sizing

  • Small (1-2 files): single endpoint, component, or utility
  • Medium (3-5 files): one feature slice through the stack
  • Large (5-8 files): multi-component feature — consider splitting

Anything larger needs further decomposition. Slice vertically (complete paths through the stack), not horizontally (all types, then all implementations, then all tests).

When aligned

Summarize what was agreed: Outcome | Decisions made | Change list | Validation | Open questions.

Split into phases if the work is large. Each phase independently valuable and verifiable. Reference concrete files.

For non-trivial plans, track agreed steps in a checklist as the conversation progresses. When planning is done, the checklist is ready — start executing.

See also

  • explore for pre-planning discovery
  • build for execution discipline per slice
  • sdd when plan decisions depend on external APIs or libraries

Red flags

  • Disappearing to build a plan and returning with a document for approval
  • Presenting options instead of surfacing the underlying problem
  • Planning from intuition without reading current code
  • Hiding uncertainty instead of stating assumptions

Do not implement inside this skill flow unless the user explicitly switches to execution.

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