Keep the change small
Prefer existing patterns, standard features, and installed dependencies. Add only what the requirement needs.
Development skill
Updated
Make the smallest correct development change and match the proof to its risk.
Prefer existing patterns, standard features, and installed dependencies. Add only what the requirement needs.
Understand the affected flow, inspect callers, and repair a shared cause when evidence supports that scope.
Keep security, accessibility, data-loss protection, and required error handling intact.
Use a focused test, build, type check, linter, probe, or direct behavior check. Broaden checks only when risk requires it.
Claude Code: Marketplace skill. Codex: candidate; selection smoke passed (October 2026).
npx skills add jamditis/claude-skills-journalism --skill ponytail-dev
Credit: Adapted from DietrichGebert/ponytail under the MIT license.