Files

pakrym-oai 3c90728a29 Add new thread items and rewire event parsing to use them (#5418 )

1. Adds AgentMessage,  Reasoning,  WebSearch items.
2. Switches the ResponseItem parsing to use new items and then also emit
3. Removes user-item kind and filters out "special" (environment) user
items when returning to clients.

2025-10-22 10:14:50 -07:00

src

Add new thread items and rewire event parsing to use them (#5418 )

2025-10-22 10:14:50 -07:00

tests

Add new thread items and rewire event parsing to use them (#5418 )

2025-10-22 10:14:50 -07:00

Cargo.toml

[otel] init otel for app-server (#5469 )

2025-10-21 12:34:27 -07:00

README.md

docs: add barebones README for codex-app-server crate (#4671 )

2025-10-03 09:26:44 -07:00

README.md

codex-app-server

codex app-server is the harness Codex uses to power rich interfaces such as the Codex VS Code extension. The message schema is currently unstable, but those who wish to build experimental UIs on top of Codex may find it valuable.

Protocol

Similar to MCP, codex app-server supports bidirectional communication, streaming JSONL over stdio. The protocol is JSON-RPC 2.0, though the "jsonrpc":"2.0" header is omitted.

Message Schema

Currently, you can dump a TypeScript version of the schema using codex generate-ts. It is specific to the version of Codex you used to run generate-ts, so the two are guaranteed to be compatible.

codex generate-ts --out DIR