mirror of https://github.com/openai/codex.git synced 2026-11-13 21:30:47 +00:00

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Charlie Marsh 6d99161bce Limit MCP status discovery to the requested page (#61365 )

## Why

Paginated MCP server status requests previously discovered all configured servers before selecting the response page, causing unnecessary connections to servers outside that page.

## What changed

Select and deduplicate server identities before discovery, then collect status only for servers on the requested page. Include thread runtime statuses when selecting pages and preserve separate entries for same-named servers in different environments. Empty pages skip discovery.

## Testing

Add coverage that counts MCP initialization requests across successive pages and an empty final page. Extend environment inventory coverage to verify that pagination preserves each registration's identity, authentication status, and tools.

GitOrigin-RevId: 0c9c9ca6c8016147eb9a12b53ffe533ac3334444

2026-11-13 19:50:06 +00:00

src

Limit MCP status discovery to the requested page (#61365 )

2026-11-13 19:50:06 +00:00

BUILD.bazel

Expose a verified sandbox launcher to local MCP servers (#52182 )

2026-10-08 17:25:09 +00:00

Cargo.toml

Use runtime authentication for OpenAI MCP and app requests (#59749 )

2026-11-05 22:03:29 +00:00

README.md

Separate MCP sandbox policy from launcher metadata (#53709 )

2026-10-13 16:23:44 +00:00

README.md

Codex MCP runtime

This crate manages Codex's MCP connections, tool calls, and their captured authority.

Sandbox request metadata

An MCP server advertises the experimental codex/sandbox-state capability to receive sandbox metadata on tool calls. The deprecated capability name codex/sandbox-state-meta opts into the same contract during migration.

Codex supplies these entries in the request's _meta object:

Key	Value
`codex/sandbox-state`	Opaque policy to pass to `codex sandbox --sandbox-state-json`.
`codex/sandbox-state-meta`	An identical copy of that policy under the deprecated name.
`codex/sandbox-launcher`	When available, an object with an absolute `codexExecutable` path to a verified full Codex CLI on the MCP server's host.

Use the launcher path to invoke sandbox --sandbox-state-json with the entire state value serialized as one argument, followed by -- and the command to run. The state contains neither launcher discovery data nor deprecation messages. Preserve unknown policy fields by forwarding the original value rather than deserializing and reconstructing it. The two state names are aliases, not separate policies; new consumers should prefer codex/sandbox-state.

Launcher metadata is currently available only for local stdio servers. An HTTP endpoint, including loopback, or a remote executor does not establish a shared filesystem with the harness. Codex omits the launcher when its path is unknown, not representable as UTF-8, or fails the cached capability probe. Absence does not authorize a PATH search or unsandboxed fallback. Servers that require a launcher must fail closed or require an explicit operator opt-out.

The state and launcher describe the issuing call. Retain both when starting a long-lived subprocess or caching policy-bound results; reject changed authority before reusing them. Tool arguments supplied by the model are not authority. See sandbox_metadata.rs for the wire types and binding.rs for execution-environment selection.