---
name: fallow-rs-coverage-loop
description: "Iteratively improve Fallow Rust test coverage with cargo-llvm-cov, prioritizing meaningful untested behavior and preserving runtime correctness."
license: "MIT"
metadata:
  decimalai-skill-id: "4041cfb4-e4d7-424f-8371-4393fc7d16ce"
  decimalai-version-id: "78dd810c-3e30-4e32-8740-2a0011a8ad67"
  decimalai-version: "2"
  decimalai-body-sha256: "e8f435105ce0146345513ffc25e269c3c369734ab246e22aed717341bd347750"
  decimalai-name: "fallow-rs/coverage-loop"
  decimalai-format: "1"
  decimalai-invocation: "model"
  decimalai-category: "testing"
  decimalai-source: "https://app.decimal.ai/s/fallow-rs-coverage-loop@2/SKILL.md"
---
<!-- Generated from .agents/skills. Do not edit. -->

# Coverage loop

1. Capture a coverage baseline with the repository-supported command.
2. Select uncovered behavior by risk, not by easiest lines.
3. Add behavior-focused tests that survive refactors.
4. Re-run targeted tests and the same coverage command.
5. Keep only tests that improve meaningful coverage or lock a real invariant.
6. Repeat until the selected risk area is covered or remaining gaps require a
   separate design change.
7. Run `review`.

Do not add assertions that merely execute code without checking behavior.