Grok for Coding: Reproduce Bugs and Check Fixes
Product details checked: 4 October 2026

Prompt
Debug this filter [code]. Keep valid numeric zero, reject missing or invalid scores according to [rule], and preserve other behavior. Explain the cause, propose a minimal patch, and provide distinguishing test cases.

Review
- Zero is handled intentionally.
- The original requirement is preserved.
- Tests exercise the actual defect.

Practice
Use positive, zero, missing, and invalid scores in a minimal filter example. Write expected membership before requesting a patch. Run every case and inspect neighboring behavior. Save the original failure and correction rationale. A reviewer should be able to reproduce the defect without access to the chat.

Official resources
https://docs.x.ai/build/overview

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