
principle-migrate-callers-then-delete-legacy-apis
Apply when introducing a new internal API while old callers still exist. Migrate callers and delete the old API in the same wave instead of preserving compatibility layers.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/poteto/plugins --skill principle-migrate-callers-then-delete-legacy-apis- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads principle-migrate-callers-then-delete-legacy-apis automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Migrate Callers Then Delete Legacy APIs
When we decide a new API is the right design, migrate callers and remove the old API in the same refactor wave instead of preserving compatibility layers.
Rule:
- Do not keep legacy API paths alive only because internal callers still exist
- Inventory callers, migrate them, and delete the old API immediately
- Treat temporary adapters as exceptional and time-boxed, not default architecture
- Update tests to assert the new contract, and delete tests that only protect pre-refactor implementation details
When this applies:
- No external users depend on backward compatibility
- The project can absorb coordinated breaking changes
- The new API is part of a simplification or refactor initiative
Keeping both old and new APIs creates dual-path complexity, slows cleanup, and makes the codebase feel append-only.
FAQ
What does the principle-migrate-callers-then-delete-legacy-apis skill do?
Apply when introducing a new internal API while old callers still exist. Migrate callers and delete the old API in the same wave instead of preserving compatibility layers.
How do I install principle-migrate-callers-then-delete-legacy-apis?
Run npx skills add https://github.com/poteto/plugins --skill principle-migrate-callers-then-delete-legacy-apis in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/principle-migrate-callers-then-delete-legacy-apis/ (personal) or .claude/skills/principle-migrate-callers-then-delete-legacy-apis/ (project).
Which AI agents can use principle-migrate-callers-then-delete-legacy-apis?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is principle-migrate-callers-then-delete-legacy-apis safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains principle-migrate-callers-then-delete-legacy-apis?
It is published by poteto in poteto/plugins. It has 82 recorded installs.
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