Building Skills for Claude — Complete Guide

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2.4 Success Criteria Checklist

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Success Criteria Checklist

Measure what matters for skill quality

A well-designed Skill should meet these criteria to be considered production-ready.

Core Quality Criteria

✓Triggers on the right prompts — activates when the user needs it

✓Produces consistent output — same quality every time

✓Handles errors gracefully — does not crash on edge cases

✓Works on the first or second attempt — reliable enough for daily use

Measurable Metrics

Quantitative Metrics

Skill triggers on 90% of relevant queries (test with 10-20 variations). Completes workflow in X tool calls. 0 failed API calls per workflow.

Qualitative Metrics

Users do not need to tell Claude next steps. Workflow completes without user correction. Consistent results across sessions.

Testing Checklist

✓Tested with at least 10 different prompt variations

✓Verified output format matches expectations

✓Tested with missing or incomplete inputs

✓Measured token consumption compared to manual approach

✓Confirmed skill does not trigger for unrelated prompts

Quality Gate

Do not ship a Skill until it passes 5 consecutive successful runs with different inputs. This minimum bar ensures basic reliability.

Section Summary

Good planning prevents bad Skills. The time invested in planning pays off exponentially during execution. Define clear success criteria before you start building.