Api Migration Tool
Migrate APIs between versions with backward compatibility
- Type
- Plugin
- Repository
- jeremylongshore/tons-of-skills-marketplace
- GitHub stars
- 2.8k
- License
- MIT
- Repo last updated
- Sep 27, 2026
- Version
- 1.25.0
- Author
- Jeremy Longshore
What Api Migration Tool is
Api Migration Tool is a plugin published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”
A plugin is a package that bundles skills, slash commands, subagents, hooks, and MCP connectors so they install together. Plugins are plain files with a manifest at .claude-plugin/plugin.json, and they work in both Claude Code and Claude Cowork.
Installing Api Migration Tool adds everything it ships in one step. Connectors inside a plugin still need to be connected separately, and hooks and subagents only run in Cowork and Claude Code, not in regular chat.
How to install Api Migration Tool
Claude Code
- Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace
- Install the plugin: claude plugin install api-migration-tool@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
- Restart the session if the new skills or commands don't appear straight away.
Claude Cowork
- Open Customize → Plugins and choose Add marketplace.
- Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub).
- Find Api Migration Tool in the list, click Install, then connect any connectors it needs from its Connectors tab.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from plugins/api-development/api-migration-tool/.claude-plugin/plugin.json, shared under the repository's MIT license. Read the full file on GitHub.
Migrate APIs between versions with backward compatibility and smooth transitions.
Installation
/plugin install api-migration-tool@claude-code-plugins-plusUsage
/migrate-apiLicense
MIT
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Api Migration Tool?
Api Migration Tool is a plugin for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Migrate APIs between versions with backward compatibility
How do I install Api Migration Tool in Claude Code?
Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace Install the plugin: claude plugin install api-migration-tool@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json. Restart the session if the new skills or commands don't appear straight away.
Can I use Api Migration Tool in Claude Cowork?
Open Customize → Plugins and choose Add marketplace. Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub). Find Api Migration Tool in the list, click Install, then connect any connectors it needs from its Connectors tab.
Is Api Migration Tool safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
Similar resources
- Brief Draft and redline contracts and policies — NDAs, MSAs, employment agreements, vendor contracts — with stage-appropriate risk framing. Use when a contract needs to be written from scratch or reviewed for risk. Trigger with "draft an NDA", "redline this contract". Subagent · jeremylongshore/tons-of-skills-marketplace
- Brightdata Pack 18 Grade-A skills for governed Bright Data proxy, Browser API, and snapshot operations Plugin · jeremylongshore/tons-of-skills-marketplace
- Browser Test Cross-browser testing across browsers, devices, and cloud providers Slash Command · jeremylongshore/tons-of-skills-marketplace
- Browser Compatibility Tester Cross-browser testing with Playwright, BrowserStack, Sauce Labs, LambdaTest, and Kobiton - test across Chrome, Firefox, Safari, Edge on real devices Plugin · jeremylongshore/tons-of-skills-marketplace
- Api Mock Server Create mock API servers from OpenAPI specs for testing Plugin · jeremylongshore/tons-of-skills-marketplace
- Api Load Tester Load test APIs with k6, Gatling, or Artillery Plugin · jeremylongshore/tons-of-skills-marketplace
- Api Monitoring Dashboard Create monitoring dashboards for API health, metrics, and alerts Plugin · jeremylongshore/tons-of-skills-marketplace
- Api Gateway Builder Build API gateway with routing, authentication, and rate limiting Plugin · jeremylongshore/tons-of-skills-marketplace