core-agent-ide/codex-rs/app-server/src/dynamic_tools.rs
jif-oai d594693d1a
feat: dynamic tools injection (#9539)
## Summary
Add dynamic tool injection to thread startup in API v2, wire dynamic
tool calls through the app server to clients, and plumb responses back
into the model tool pipeline.

### Flow (high level)
- Thread start injects `dynamic_tools` into the model tool list for that
thread (validation is done here).
- When the model emits a tool call for one of those names, core raises a
`DynamicToolCallRequest` event.
- The app server forwards it to the client as `item/tool/call`, waits
for the client’s response, then submits a `DynamicToolResponse` back to
core.
- Core turns that into a `function_call_output` in the next model
request so the model can continue.

### What changed
- Added dynamic tool specs to v2 thread start params and protocol types;
introduced `item/tool/call` (request/response) for dynamic tool
execution.
- Core now registers dynamic tool specs at request time and routes those
calls via a new dynamic tool handler.
- App server validates tool names/schemas, forwards dynamic tool call
requests to clients, and publishes tool outputs back into the session.
- Integration tests
2026-01-26 10:06:44 +00:00

58 lines
1.8 KiB
Rust

use codex_app_server_protocol::DynamicToolCallResponse;
use codex_core::CodexThread;
use codex_protocol::dynamic_tools::DynamicToolResponse as CoreDynamicToolResponse;
use codex_protocol::protocol::Op;
use std::sync::Arc;
use tokio::sync::oneshot;
use tracing::error;
pub(crate) async fn on_call_response(
call_id: String,
receiver: oneshot::Receiver<serde_json::Value>,
conversation: Arc<CodexThread>,
) {
let response = receiver.await;
let value = match response {
Ok(value) => value,
Err(err) => {
error!("request failed: {err:?}");
let fallback = CoreDynamicToolResponse {
call_id: call_id.clone(),
output: "dynamic tool request failed".to_string(),
success: false,
};
if let Err(err) = conversation
.submit(Op::DynamicToolResponse {
id: call_id.clone(),
response: fallback,
})
.await
{
error!("failed to submit DynamicToolResponse: {err}");
}
return;
}
};
let response = serde_json::from_value::<DynamicToolCallResponse>(value).unwrap_or_else(|err| {
error!("failed to deserialize DynamicToolCallResponse: {err}");
DynamicToolCallResponse {
output: "dynamic tool response was invalid".to_string(),
success: false,
}
});
let response = CoreDynamicToolResponse {
call_id: call_id.clone(),
output: response.output,
success: response.success,
};
if let Err(err) = conversation
.submit(Op::DynamicToolResponse {
id: call_id,
response,
})
.await
{
error!("failed to submit DynamicToolResponse: {err}");
}
}