Agent skill · software engineering · rtk-ai
tdd-rust
TDD workflow for RTK filter development. Red-Green-Refactor with Rust idioms. Real fixtures, token savings assertions, snapshot tests with insta. Auto-triggers on new filter implementation.
Why this skill is useful
Adds specific Rust idioms and TDD patterns for RTK filter development that the AI wouldn't reliably generate on its own.
What it needs
Requires cargo installed locally. About 4k tokens when loaded. Last updated 2026-08-06. 75,070 stars on the source repository.
What this skill does
RTK TDD Workflow Enforce Red-Green-Refactor for all RTK filter development. The Loop Step 1: Real Fixture First Never write synthetic test data. Capture real command output: Fixture naming: tests/fixtures/<command>raw.txt Step 2: Write the Test (Red) Run: cargo test → should fail (function doesn't exist yet). Step 3: Minimum Implementation (Green) Run: cargo test → green. Step 4: Accept Snapshot Step 5: Wire to main.rs (Integration) Step 6: Quality Gate All 3 must pass. Zero clippy warnings. Arrange-Act-Assert Pattern RTK-Specific Test Patterns Test ANSI stripping Test fallback behavior Test savings at multiple sizes What "Done" Looks Like Checklist before moving on: [ ] tests/fixtures/<cmd>raw.txt — real command output [ ] filter<cmd>() function returns Result<String> [ ] Snapshot test passes and accepted via cargo insta review [ ] Token savings test: ≥60% verified [ ] Empty input test: no panic [ ] Malformed input test: no panic [ ] run() function with fallback pattern [ ] Registered in main.rs Commands enum [ ] cargo fmt --all && cargo clippy --all-targets && cargo test — all green Never Do This
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills rtk-ai/tdd-rust