fix

codex-rs/app-server-protocol/src/protocol/common.rs

@@ -133,7 +133,7 @@ client_request_definitions! {
         params: v2::ReviewStartParams,
         response: v2::ReviewStartResponse,
     },
-    CompactStart => "compact/start" {
+    CompactStart => "thread/compact" {
         params: v2::CompactStartParams,
         response: v2::TurnStartResponse,
     },

codex-rs/app-server/README.md

@@ -75,7 +75,7 @@ Example (from OpenAI's official VSCode extension):
 - `turn/start` — add user input to a thread and begin Codex generation; responds with the initial `turn` object and streams `turn/started`, `item/*`, and `turn/completed` notifications.
 - `turn/interrupt` — request cancellation of an in-flight turn by `(thread_id, turn_id)`; success is an empty `{}` response and the turn finishes with `status: "interrupted"`.
 - `review/start` — kick off Codex’s automated reviewer for a thread; responds like `turn/start` and emits `item/started`/`item/completed` notifications with `enteredReviewMode` and `exitedReviewMode` items, plus a final assistant `agentMessage` containing the review.
-- `compact/start` — compact (summarize) a thread’s history to reduce context usage; responds like `turn/start` and emits `thread/compacted` when the new compacted history is installed.
+- `thread/compact` — compact (summarize) a thread’s history to reduce context usage; responds like `turn/start` and emits `thread/compacted` when the new compacted history is installed.
 - `command/exec` — run a single command under the server sandbox without starting a thread/turn (handy for utilities and validation).
 - `model/list` — list available models (with reasoning effort options).
 - `skills/list` — list skills for one or more `cwd` values.

codex-rs/app-server/tests/common/mcp_process.rs

@@ -391,13 +391,13 @@ impl McpProcess {
         self.send_request("review/start", params).await
     }
 
-    /// Send a `compact/start` JSON-RPC request (v2).
+    /// Send a `thread/compact` JSON-RPC request (v2).
     pub async fn send_compact_start_request(
         &mut self,
         params: CompactStartParams,
     ) -> anyhow::Result<i64> {
         let params = Some(serde_json::to_value(params)?);
-        self.send_request("compact/start", params).await
+        self.send_request("thread/compact", params).await
     }
 
     /// Send a `cancelLoginChatGpt` JSON-RPC request.