Files
codex/codex-rs/protocol
jif a397079287 Preserve MCP resource origins across compaction (#39192)
## Why

Compaction can remove the tool-call events that associate an MCP app widget with
the tool, account, and URI needed to authorize later resource reads.

## What changed

- Store a bounded MCP resource-origin checkpoint with each compacted rollout.
- Restore the checkpoint when resuming a session so existing widgets remain
  readable after compaction and restart.
- Discard saved origins when rollback rewrites history across the compaction
  boundary, and reject oversized or invalid checkpoints during restoration.

## Testing

- Extend the app-server MCP resource-origin test to compact a paginated thread,
  continue the conversation, and read the original widgets before and after a
  restart.
- Verify rollback clears provenance that no longer matches retained history.

GitOrigin-RevId: 7f91c6202fe8d9be21c78dda42fa205937c44263
2026-08-18 12:37:41 +00:00
..

codex-protocol

This crate defines the "types" for the protocol used by Codex CLI, which includes both "internal types" for communication between codex-core and codex-tui, as well as "external types" used with codex app-server.

This crate should have minimal dependencies.

Ideally, we should avoid "material business logic" in this crate, as we can always introduce Ext-style traits to add functionality to types in other crates.