Portable Resume Enables Context Transfer Between Coding Agents

The open-source tool Portable Resume has been released to address the repeated context resets that coding agent users face when switching tools. This tool reads local session files and passes the current project's context to a new agent session.

Key Features and Support Scope

• Support for Various Agents: Currently supports 17 session source readers and 18 tool installation profiles, including Claude Code, Codex, Cursor, OpenCode, Gemini CLI, and GitHub CLI.
• How It Works: After installation via pipx in a Python 3.11+ environment, running the /resume-codex command in the target agent (e.g., Claude Code) reads the latest session history from the previous tool (Codex).
• Data Processing: The original session storage remains unchanged, and only the recovered text context is transferred. Security information masking is provided on a best-effort basis, so verification is required before sharing.

Limitations

It does not restore running sessions or the model's internal state (hidden model state), and the transferred text context may be incomplete or outdated, requiring the next agent to verify the actual code.