How do I install the Migration skill?

Run npx skillmds@latest add fedify-dev/migration in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Migration safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Migration?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Migration free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Migration?

fedify-dev (@fedify-dev) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Migration

Name: Migration
Author: fedify-dev

Help the user migrate Fedify code between versions. Use when the user needs to upgrade their Fedify version, fix breaking-change errors, or update deprecated API usage.

fedify-dev 09e1082 1.1 KB Updated Sep 17, 2026

Integrations & APIs

Install

Press C to copy

$ npx skillmds@latest add fedify-dev/migration

Installs into ~/.claude/skills (or .claude/skills inside a project). Restart Claude Code to pick it up.

Download SKILL.md

＋ Add to collection

README badge

[![SkillMD](https://skillmd.com/badge/fedify-dev/migration.svg)](https://skillmd.com/skills/fedify-dev/migration)

Trust & safety

Audits pending

Not yet audited · commit 09e1082

Works with: Claude Code Claude.ai OpenAI Codex +

File contents

Help the user migrate Fedify code from “$ARGUMENTS”.

Migration workflow

Fetch CHANGES.md from the repo to identify breaking changes between the versions in question: https://raw.githubusercontent.com/fedify-dev/fedify/main/CHANGES.md
List every breaking change that affects the user's code range.
For each breaking change, show the old API, the new API, and a concrete before/after code snippet.
Search the user's codebase for usages of deprecated symbols and suggest the replacement.
Note any dependency changes (e.g., vocabulary moved to @fedify/vocab, runtime to @fedify/vocab-runtime).

Key migration hints

@fedify/fedify/vocab → @fedify/vocab (dedicated package)
@fedify/fedify/runtime → @fedify/vocab-runtime
In-tree src/webfinger → @fedify/webfinger
src/x/ exports removed in 2.0.0

fedify-dev/fedify/tree/main/claude-plugin/skills/migration commit 09e1082ee8

Frequently asked questions

npx skillmds@latest add fedify-dev/migration