craft-tune

Installation
SKILL.md

craft-tune

Purpose

Diagnose an existing prompt or skill and apply targeted edits that preserve its core intent.

A pass over a working artifact is two jobs in one: figure out what's actually broken, then change only what's blocking the goal. Diagnosis without edits leaves the user holding the bag; edits without diagnosis silently drift the artifact's scope and lose the lessons its phrasing already encodes. craft-tune does both in one pass and lets the user stop after diagnosis when that's what they need.

Use this when

  • a prompt or skill is close but needs sharpening
  • a prompt "feels off" or behaves inconsistently across runs
  • a working artifact needs review before being generalized or shipped
  • a large rewrite is tempting and a diagnostic pass should anchor the next edit
  • minimal-diff improvement is better than rewriting from scratch

Switch to diagnose-only mode when the user explicitly wants findings without edits — typical signals: "review only," "diagnose only," "what's wrong with this but don't change it yet," "audit before I touch it." See § Diagnose-only mode.

Inputs

Related skills

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Installs
9
First Seen
Apr 15, 2026