[Bug] `/insights` command generates duplicate suggestions despite reading project catalog

Bug Description
▎ /insights had read access to my repo (.gzkit/skills/, AGENTS.md, .claude/rules/) and still produced suggestions that
▎ duplicated existing skills (proposed /ghi-fix while ghi-close v2.4.0 sat one ls away) and restated rules already in
▎ canon (slash-command literalism was already drafted as Behavior Rule § Never #9 in the same session). The
▎ recommender appears to follow the shape of a usage-insights report from training — "what works / hindering / quick
▎ wins / features to try" with bullet remediations — rather than grounding suggestions against the corpus it can
▎ actually read. Net: ~half the suggestions in the 2026-05-18 report were Captain Obvious or duplicative. A grounding
▎ pass against the project's skill/rule catalog before generating "features to try" would close the gap.

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.143
• Feedback ID: 69b81a98-3eec-4ca1-94f8-5ebf4cdb4032

Errors

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