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Casr

Cross Agent Session Resumer. Convert and resume sessions across Claude Code, Codex, Gemini, and other providers. Use when switching AI agent providers mid-session or migrating an active chat history to a new tool.

majiayu000 Updated 567 repo stars
AI & ML

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casr — Cross Agent Session Resumer

Use casr when you need to keep working on the same session but switch providers.

Fast Path

casr list
casr info <session-id>
casr -cc <session-id>   # open in Claude Code
casr -cod <session-id>  # open in Codex
casr -gmi <session-id>  # open in Gemini

Helpful Commands

casr providers
casr list --workspace "$(pwd)" --sort date --limit 20
casr cod resume <session-id> --source cc
casr info <session-id> --json

Notes

  • casr list is project-scoped to your current working directory by default.
  • -cc, -cod, and -gmi auto-detect source provider from the session ID.
  • Use --json output mode for automation.

majiayu000/claude-skill-registry-data/tree/main/other/casr commit bc08d987c2

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Frequently asked questions

npx skillmds@latest add majiayu000/casr-2