core-agent-ide/codex-rs/rmcp-client/Cargo.toml
Michael Bolin 66447d5d2c
feat: replace custom mcp-types crate with equivalents from rmcp (#10349)
We started working with MCP in Codex before
https://crates.io/crates/rmcp was mature, so we had our own crate for
MCP types that was generated from the MCP schema:


8b95d3e082/codex-rs/mcp-types/README.md

Now that `rmcp` is more mature, it makes more sense to use their MCP
types in Rust, as they handle details (like the `_meta` field) that our
custom version ignored. Though one advantage that our custom types had
is that our generated types implemented `JsonSchema` and `ts_rs::TS`,
whereas the types in `rmcp` do not. As such, part of the work of this PR
is leveraging the adapters between `rmcp` types and the serializable
types that are API for us (app server and MCP) introduced in #10356.

Note this PR results in a number of changes to
`codex-rs/app-server-protocol/schema`, which merit special attention
during review. We must ensure that these changes are still
backwards-compatible, which is possible because we have:

```diff
- export type CallToolResult = { content: Array<ContentBlock>, isError?: boolean, structuredContent?: JsonValue, };
+ export type CallToolResult = { content: Array<JsonValue>, structuredContent?: JsonValue, isError?: boolean, _meta?: JsonValue, };
```

so `ContentBlock` has been replaced with the more general `JsonValue`.
Note that `ContentBlock` was defined as:

```typescript
export type ContentBlock = TextContent | ImageContent | AudioContent | ResourceLink | EmbeddedResource;
```

so the deletion of those individual variants should not be a cause of
great concern.

Similarly, we have the following change in
`codex-rs/app-server-protocol/schema/typescript/Tool.ts`:

```
- export type Tool = { annotations?: ToolAnnotations, description?: string, inputSchema: ToolInputSchema, name: string, outputSchema?: ToolOutputSchema, title?: string, };
+ export type Tool = { name: string, title?: string, description?: string, inputSchema: JsonValue, outputSchema?: JsonValue, annotations?: JsonValue, icons?: Array<JsonValue>, _meta?: JsonValue, };
```

so:

- `annotations?: ToolAnnotations` ➡️ `JsonValue`
- `inputSchema: ToolInputSchema` ➡️ `JsonValue`
- `outputSchema?: ToolOutputSchema` ➡️ `JsonValue`

and two new fields: `icons?: Array<JsonValue>, _meta?: JsonValue`

---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/10349).
* #10357
* __->__ #10349
* #10356
2026-02-02 17:41:55 -08:00

72 lines
2 KiB
TOML

[package]
name = "codex-rmcp-client"
version.workspace = true
edition.workspace = true
license.workspace = true
[lints]
workspace = true
[dependencies]
anyhow = "1"
axum = { workspace = true, default-features = false, features = [
"http1",
"tokio",
] }
codex-keyring-store = { workspace = true }
codex-protocol = { workspace = true }
codex-utils-home-dir = { workspace = true }
futures = { workspace = true, default-features = false, features = ["std"] }
keyring = { workspace = true, features = ["crypto-rust"] }
oauth2 = "5"
reqwest = { version = "0.12", default-features = false, features = [
"json",
"stream",
"rustls-tls",
] }
rmcp = { workspace = true, default-features = false, features = [
"auth",
"base64",
"client",
"macros",
"schemars",
"server",
"transport-child-process",
"transport-streamable-http-client-reqwest",
"transport-streamable-http-server",
] }
schemars = { workspace = true }
serde = { workspace = true, features = ["derive"] }
serde_json = { workspace = true }
sha2 = { workspace = true }
tiny_http = { workspace = true }
tokio = { workspace = true, features = [
"io-util",
"macros",
"process",
"rt-multi-thread",
"sync",
"io-std",
"time",
] }
tracing = { workspace = true, features = ["log"] }
urlencoding = { workspace = true }
webbrowser = { workspace = true }
which = { workspace = true }
[dev-dependencies]
codex-utils-cargo-bin = { workspace = true }
pretty_assertions = { workspace = true }
serial_test = { workspace = true }
tempfile = { workspace = true }
[target.'cfg(target_os = "linux")'.dependencies]
keyring = { workspace = true, features = ["linux-native-async-persistent"] }
[target.'cfg(target_os = "macos")'.dependencies]
keyring = { workspace = true, features = ["apple-native"] }
[target.'cfg(target_os = "windows")'.dependencies]
keyring = { workspace = true, features = ["windows-native"] }
[target.'cfg(any(target_os = "freebsd", target_os = "openbsd"))'.dependencies]
keyring = { workspace = true, features = ["sync-secret-service"] }