Cross-environment handoff
A handoff transfers durable work, not hidden authority.
For example, one engineer can complete discovery and specification with Claude Code. They commit the Execution Package and publish the agreed tracker state. A second engineer pulls the repository and continues with OpenCode/Qwen.
The receiving environment:
- verifies package and source digests;
- resolves its own qualified driver;
- rebuilds local credentials and capabilities;
- resumes from the last idempotent checkpoint;
- appends evidence without rewriting accepted history.
Provider-specific prompts are never the handoff contract. Jira or Confluence may expose a human-readable projection, but the signed repository package remains the executable source of truth.