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Channing Conger 3b78f58fb2 [codex] extend code-mode host IPC transport (#30108 )

## Summary

- add an `EncodedFrame` type so IPC payloads are serialized and
size-checked before entering bounded queues
- add the V1 `operation/cancel` client-to-host message
- pin the new wire shape with protocol tests

## Why

The process-owned code-mode host needs bounded, pre-encoded outbound
messages and a best-effort cancellation signal. Keeping these wire
primitives in a protocol-only change lets their compatibility contract
be reviewed independently from either endpoint.

## Stack

This is **1 of 4** in the process-owned code-mode session stack. The
next PR targets this branch.

## Validation

- `just test -p codex-code-mode-protocol` — 22 passed
- `just fix -p codex-code-mode-protocol`
- `just fmt`

3b78f58fb2 · 2026-06-25 13:26:47 -07:00

History

.cargo

Ignore proc-macro-error2 advisory (#26974 )

2026-06-08 11:39:08 +02:00

.config

[codex] Speed up local nextest runs (#26479 )

2026-06-09 12:48:04 -07:00

.github/workflows

Uprev Rust toolchain pins to 1.95.0 (#24684 )

2026-05-26 20:59:47 -07:00

agent-graph-store

[codex] Inject agent graph store into ThreadManager (#29736 )

2026-06-24 13:24:10 -07:00

agent-identity

Allow ChatGPT accounts without email (#28991 )

2026-06-22 13:19:40 -07:00

analytics

[plugins] Track plugin install requests by ID (#29684 )

2026-06-24 21:29:11 +00:00

ansi-escape

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

app-server

feat: add provider-aware model fallback to thread start (#29942 )

2026-06-25 18:24:34 +00:00

app-server-client

Support openai/form extended form elicitations (#27500 )

2026-06-18 11:54:49 -07:00

app-server-daemon

feat(remote-control): add daemon pairing command (#29913 )

2026-06-24 18:00:06 -07:00

app-server-protocol

feat: add provider-aware model fallback to thread start (#29942 )

2026-06-25 18:24:34 +00:00

app-server-test-client

feat(app-server): list descendant threads by ancestor (#29591 )

2026-06-24 13:08:14 -07:00

app-server-transport

[codex] dedupe remote control account header (#29893 )

2026-06-24 15:06:53 -07:00

apply-patch

path-uri: clarify host-native path conversion (#29501 )

2026-06-23 00:02:33 +00:00

arg0

apply-patch: carry paths as PathUri (#28854 )

2026-06-18 19:31:19 +00:00

async-utils

[codex] Remove async_trait from first-party code (#27475 )

2026-06-11 18:16:39 -07:00

aws-auth

feat: enable AWS login credentials for Bedrock auth (#21623 )

2026-05-08 04:07:59 +00:00

backend-client

Add workspace messages app-server API (#29001 )

2026-06-22 04:25:07 -07:00

bwrap

build: run buildifier from just fmt (#28125 )

2026-06-13 21:43:39 -07:00

chatgpt

[apps] Thread structured icon assets through app list (#29889 )

2026-06-24 13:25:44 -07:00

cli

cli: rename sandbox permission profile flag (#30095 )

2026-06-25 11:25:19 -07:00

cloud-config

Allow ChatGPT accounts without email (#28991 )

2026-06-22 13:19:40 -07:00

cloud-tasks

PAC 2 - Add shared auth system proxy contract (#26707 )

2026-06-22 13:03:11 -07:00

cloud-tasks-client

[codex] Remove async_trait from first-party code (#27475 )

2026-06-11 18:16:39 -07:00

cloud-tasks-mock-client

[codex] Remove async_trait from first-party code (#27475 )

2026-06-11 18:16:39 -07:00

code-mode

code-mode: Remove Session::is_alive() (#29732 )

2026-06-23 15:14:13 -07:00

code-mode-host

code-mode standalone: extract protocol and add host crate (#27724 )

2026-06-11 22:37:26 -07:00

code-mode-protocol

[codex] extend code-mode host IPC transport (#30108 )

2026-06-25 13:26:47 -07:00

codex-api

feat: use run agent task auth for inference (#19051 )

2026-06-24 22:31:41 -07:00

codex-backend-openapi-models

feat: show enterprise monthly credit limits in status (#24812 )

2026-06-01 21:25:42 -07:00

codex-client

PAC 4 - Add macOS system proxy resolver (#26709 )

2026-06-22 17:56:04 -07:00

codex-experimental-api-macros

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

codex-home

[codex] Bind shell snapshots to retained thread environments (#28421 )

2026-06-15 20:10:53 -07:00

codex-mcp

Support OAuth for HTTP MCP servers from selected executor plugins (#28529 )

2026-06-25 10:31:17 +01:00

collaboration-mode-templates

[prompting] updated plan mode prompt (#29301 )

2026-06-21 13:35:25 -07:00

config

Represent MCP authentication with an enum (#29924 )

2026-06-24 19:51:51 -07:00

connectors

Add a connector declaration snapshot (#29851 )

2026-06-24 23:24:01 +01:00

context-fragments

core: rename metadata -> internal_chat_message_metadata_passthrough (#28968 )

2026-06-22 11:11:25 -07:00

core

[codex] impl delivery_mode: current time reminders on response boundaries (#30033 )

2026-06-25 19:28:50 +00:00

core-api

[codex] Inject agent graph store into ThreadManager (#29736 )

2026-06-24 13:24:10 -07:00

core-plugins

[codex] Populate remote plugin local versions (#29956 )

2026-06-25 03:13:03 +00:00

core-skills

Parallelize environment skill loading (#29990 )

2026-06-25 10:02:07 +01:00

docs

protocol: remove submission-side serde from Op (#26674 )

2026-06-05 15:41:13 -07:00

exec

feat(app-server): list descendant threads by ancestor (#29591 )

2026-06-24 13:08:14 -07:00

exec-server

[codex] Retry temporarily offline exec-server recovery (#30098 )

2026-06-25 19:25:04 +00:00

exec-server-protocol

Support OAuth for HTTP MCP servers from selected executor plugins (#28529 )

2026-06-25 10:31:17 +01:00

execpolicy

[codex] Use expect in integration tests (#28441 )

2026-06-15 21:53:47 -07:00

execpolicy-legacy

build: run buildifier from just fmt (#28125 )

2026-06-13 21:43:39 -07:00

ext

Support HTTP MCP servers from selected executor plugins (#28522 )

2026-06-25 10:10:36 +01:00

external-agent-migration

[codex] Preserve skill descriptions outside model context (#29006 )

2026-06-19 12:47:53 -07:00

external-agent-sessions

core: rename metadata -> internal_chat_message_metadata_passthrough (#28968 )

2026-06-22 11:11:25 -07:00

features

[codex] add current time reminder delivery mode config (#30031 )

2026-06-25 19:06:43 +00:00

feedback

Attach Windows sandbox log to feedback reports (#24623 )

2026-05-26 15:59:25 -07:00

file-search

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

file-system

Pipeline bounded AGENTS.md and Git root probes (#29870 )

2026-06-24 22:58:34 +01:00

file-watcher

Fix fs/watch debounce batching (#24716 )

2026-05-28 23:09:55 -07:00

git-utils

Pipeline bounded AGENTS.md and Git root probes (#29870 )

2026-06-24 22:58:34 +01:00

hooks

Respect blocking PostToolUse hooks in code mode (#28365 )

2026-06-15 15:12:26 -07:00

install-context

cli: add package path from install context (#26189 )

2026-06-03 19:08:19 -07:00

keyring-store

feat: add auth-specific encrypted secret namespaces (#27535 )

2026-06-12 19:52:49 +00:00

linux-sandbox

Add network environment ID plumbing (#28766 )

2026-06-18 14:09:38 +02:00

lmstudio

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

feat: use run agent task auth for inference (#19051 )

2026-06-24 22:31:41 -07:00

mcp-server

[codex] Inject agent graph store into ThreadManager (#29736 )

2026-06-24 13:24:10 -07:00

memories

feat: add provider-aware model fallback to thread start (#29942 )

2026-06-25 18:24:34 +00:00

message-history

Optimize unbounded byte scans with memchr (#26265 )

2026-06-04 09:53:08 -04:00

model-provider

feat: use run agent task auth for inference (#19051 )

2026-06-24 22:31:41 -07:00

model-provider-info

auth: move domain mode below app wire types (#29721 )

2026-06-24 03:10:20 +00:00

models-manager

feat: add provider-aware model fallback to thread start (#29942 )

2026-06-25 18:24:34 +00:00

network-proxy

feat(network-proxy): experimental local credential broker (#28034 )

2026-06-24 13:21:16 -07:00

ollama

Optimize unbounded byte scans with memchr (#26265 )

2026-06-04 09:53:08 -04:00

otel

[codex] Record exec-server lifecycle metrics (#27467 )

2026-06-25 11:02:11 -07:00

plugin

Make selected plugin roots URI-native (#28918 )

2026-06-23 22:51:19 +01:00

process-hardening

fix(process-hardening): preserve macos malloc diagnostics (#24479 )

2026-05-25 17:26:10 -03:00

prompts

chore(core) rm AskForApproval::OnFailure (#28418 )

2026-06-23 12:13:54 -07:00

protocol

Persist selected capability roots and resolve availability per model step (#29856 )

2026-06-25 17:49:43 +00:00

realtime-webrtc

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

response-debug-context

Add safety check notification and error handling (#19055 )

2026-04-22 22:24:12 -07:00

responses-api-proxy

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

rmcp-client

Support OAuth for HTTP MCP servers from selected executor plugins (#28529 )

2026-06-25 10:31:17 +01:00

rollout

Persist selected capability roots and resolve availability per model step (#29856 )

2026-06-25 17:49:43 +00:00

rollout-trace

[codex] Use input items for Responses Lite tools (#27946 )

2026-06-22 23:56:16 -07:00

sandboxing

[codex] Preserve proxy state for filesystem sandbox helpers (#29671 )

2026-06-23 12:29:46 -07:00

scripts

Uprev Rust toolchain pins to 1.95.0 (#24684 )

2026-05-26 20:59:47 -07:00

secrets

feat: add auth-specific encrypted secret namespaces (#27535 )

2026-06-12 19:52:49 +00:00

shell-command

[codex] Reject unlowered PowerShell AST regions (#24092 )

2026-06-23 03:09:20 +00:00

shell-escalation

[codex] Remove async_trait from first-party code (#27475 )

2026-06-11 18:16:39 -07:00

skills

[codex] Update bundled skill installer guidance (#29768 )

2026-06-23 19:36:17 -07:00

state

Persist selected capability roots and resolve availability per model step (#29856 )

2026-06-25 17:49:43 +00:00

stdio-to-uds

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

terminal-detection

feat(cli): add codex doctor diagnostics (#22336 )

2026-05-13 21:23:19 +00:00

test-binary-support

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

thread-manager-sample

[codex] Inject agent graph store into ThreadManager (#29736 )

2026-06-24 13:24:10 -07:00

thread-store

Persist selected capability roots and resolve availability per model step (#29856 )

2026-06-25 17:49:43 +00:00

tools

mcp: keep elicitation requests below app wire types (#29724 )

2026-06-24 20:53:27 +00:00

tui

[codex] Add Ultra reasoning effort (#29899 )

2026-06-24 20:13:52 -07:00

uds

Disable empty Cargo test targets (#21584 )

2026-05-07 15:44:17 -07:00

utils

path-uri: normalize parent segments in absolute joins (#29903 )

2026-06-24 22:33:18 +00:00

v8-poc

build: run buildifier from just fmt (#28125 )

2026-06-13 21:43:39 -07:00

vendor

build: run buildifier from just fmt (#28125 )

2026-06-13 21:43:39 -07:00

windows-sandbox-rs

Skip credential refresh for WindowsApps launch failures (#29637 )

2026-06-24 20:59:53 +01:00

.gitignore

[MCP] Prefix MCP tools names with mcp__ (#5309 )

2025-10-19 20:41:55 -04:00

BUILD.bazel

Remove js_repl feature (#19410 )

2026-04-24 17:49:29 -07:00

Cargo.lock

Support OAuth for HTTP MCP servers from selected executor plugins (#28529 )

2026-06-25 10:31:17 +01:00

Cargo.toml

Read connector declarations from executor plugins (#29852 )

2026-06-24 23:56:50 +01:00

clippy.toml

chore: document intentional await-holding cases (#18423 )

2026-04-20 22:41:54 -07:00

config.md

Fix link to MCP Servers config section (#5301 )

2025-10-17 14:58:27 -07:00

default.nix

fix(nix): include libcap dependency on linux builds (#12415 )

2026-02-20 19:32:15 -08:00

deny.toml

[codex] Remove async_trait from first-party code (#27475 )

2026-06-11 18:16:39 -07:00

README.md

Simplify Codex CLI README (#26313 )

2026-06-04 09:16:03 -07:00

rust-toolchain.toml

Uprev Rust toolchain pins to 1.95.0 (#24684 )

2026-05-26 20:59:47 -07:00

rustfmt.toml

Update cargo to 2024 edition (#842 )

2025-05-07 08:37:48 -07:00

README.md

Codex CLI

Codex CLI Documentation