Test Prompt Skill
Skill Verified ActiveUse when creating or editing any prompt (commands, hooks, skills, subagent instructions) to verify it produces desired behavior - applies RED-GREEN-REFACTOR cycle to prompt engineering using subagents for isolated testing
To apply TDD principles to prompt engineering, ensuring prompts are robust, reliable, and produce desired agent behavior through systematic testing and refinement.
Features
- Applies RED-GREEN-REFACTOR cycle to prompt engineering
- Uses isolated subagents for baseline testing
- Provides structured guidance for prompt optimization
- Supports testing of various prompt types (commands, hooks, skills)
Use Cases
- Testing new prompts before deploying them to production
- Verifying prompt changes do not introduce regressions
- Comparing different prompt variations for optimal performance
- Ensuring prompt clarity and consistency for agent instructions
Non-Goals
- Writing the initial prompt from scratch without prior testing
- Testing prompts within an existing conversation history
- Directly modifying agent behavior outside of prompt updates
Workflow
- Design test scenarios for the prompt type.
- Launch subagent WITHOUT the prompt to observe baseline behavior (RED Phase).
- Document agent failures verbatim.
- Write a minimal prompt addressing specific baseline failures (GREEN Phase).
- Test with the prompt using subagent and verify improvement.
- Optimize the prompt while keeping tests passing (REFACTOR Phase).
- Re-verify with fresh subagents after refactoring.
Practices
- Prompt Engineering
- Test-Driven Development
- Agent Workflow Design
Prerequisites
- Understanding of TDD: RED-GREEN-REFACTOR cycle
- Familiarity with prompt-engineering skill
Trust
- info:Issues AttentionThere are 6 open issues and 8 closed issues in the last 90 days, indicating active but potentially slower-than-ideal maintainer engagement.
Installation
First, add the marketplace
/plugin marketplace add NeoLabHQ/context-engineering-kit/plugin install customaize-agent@context-engineering-kitQuality Score
VerifiedTrust Signals
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