Improve skill

A skill for incrementally improving other fabrik skills based on what just happened in the current conversation. The premise: every real session is a free user study. If a skill underperformed -- gave incomplete advice, missed something the user had to ask for manually, didn't trigger when it should have -- that's signal worth turning into a concrete improvement to the skill.

This skill harvests that signal and ships it back to maragudk/fabrik as a PR (when the fix is clear) or an issue (when the observation is real but the fix isn't).

When to use

Primarily user-invoked. The user runs /improve-skill or says things like "make the X skill better", "the brainstorm skill should ask fewer questions", "this skill missed something". They may also bring their own idea about what to fix; that idea joins the findings list rather than replacing it.

Proactively suggest at end-of-session moments only when there's concrete signal. Examples of concrete signal:

• The user corrected output that came from a skill's guidance
• The user asked manually for something the invoked skill should have done unprompted
• The assistant supplemented with knowledge that's literally another skill's job (a missed trigger)
• An invoked skill produced something out of date, contradicted another skill, or confused the assistant

No signal, no suggestion. Be quiet by default. The bar is the same as the decisions skill: only speak up when there's something specific to point at.