CraftBot Skill Improver

Refine one existing skill using evidence from one task that used it. The handler that spawned this task already gathered everything you need into a single markdown file — read it, diff it against the live skill, apply small surgical edits, send the user a one-message summary of the changes, end the task. The handler has already posted "Improving skill <name>…" in chat for you, so do not duplicate that message. Your only chat message is the final presentation right before end_turn. Do not iterate with test cases. Do not run subagents.

What you receive

Your task instruction contains five lines (the two paths are absolute — pass them verbatim to read_file / stream_edit, do NOT prepend or modify any prefix):

Source file (read this — absolute path, use verbatim): <absolute path to SKILL_SOURCE_<id>.md>
Target file (edit this — absolute path, use verbatim): <absolute path to skills/<existing-name>/SKILL.md>
Mode: improve
Skill name: <existing-skill-name>

⚠️ Do not invent your own path for the target file. Using the literal value of Target file: ensures stream_edit modifies the actual installed SKILL.md.

SKILL_SOURCE_<task_id>.md has YAML frontmatter (mode: improve, target_skill, source_task_id, generated_at) and these body sections: