phx:learn
Learn From Fix
After fixing a bug or receiving a correction, capture the lesson to prevent future mistakes.
Usage
/phx:learn Fixed N+1 query in user listing - was missing preload
/phx:learn String vs atom key mismatch in params handling
/phx:learn LiveView assign_async needs render_async in tests
Workflow
Step 1: Identify the Pattern
Look at recent conversation context. Ask yourself:
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Ecto patterns — schemas, changesets, queries, migrations, Multi, associations, preloads, upserts. Use when editing Repo calls, Ecto.Query, or schema fields. Skip for Ash.
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