This PR rewrites the `crit` skill from a general description into a concrete CRIT (Context-Request-Input-Tone) workflow.
## Changes
- Transformed abstract skill description into structured 5-step workflow
- Added clear completion criteria for each step
- Implemented quality guardrails and trigger hints
- Followed established patterns from other skills (conversation-summary, knowledge-gardener)
## Impact
- Makes the crit skill more actionable and predictable
- Provides systematic brainstorming and idea evaluation
- Improves user experience with structured guidance
## Files Changed
- common/pkm/crit/SKILL.md
Co-authored-by: Steve Beaulac <steve@beaulac.me>
Reviewed-on: steve/Skills#6
- Create new `pkm` directory for Personal Knowledge Management skills
- Move conversation-summary, knowledge-gardener, and research-vault from `personal` to `pkm`
- Add new crit skill for brainstorming with the CRIT framework
- Update skill descriptions for clarity and consistency
- Add audio-product-dsp, grilling, and research-engineering to model-invoked listings
- Update skill paths across README files to reflect new directory structure
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