Document CQRS command/query separation rule for API endpoints#252
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Adds explicit guidance that command endpoints must not return domain data — only a status code — and that queries are the sole place to read state. Updates the REST controller example to show a command returning 201 with no body alongside a query returning data, and adds the pattern to the anti-patterns list. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
CreateGamecontroller example (which incorrectly returnedGameDtofrom a command) with two clearly labelled examples showing a command endpoint returning201 Createdwith no body and a query endpoint returning dataTest plan
agents.mdguidance for clarity and accuracy🤖 Generated with Claude Code