feat: adapter model discovery, reasoning effort, and improved codex formatting

Add dynamic OpenAI model list fetching for codex adapter with caching,
async listModels interface, reasoning effort support for both claude and
codex adapters, optional timeouts (default to unlimited), wakeCommentId
context propagation, and richer codex stdout event parsing/formatting.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/adapter-utils/src/index.ts

@@ -6,6 +6,7 @@ export type {
   AdapterInvocationMeta,
   AdapterExecutionContext,
   AdapterSessionCodec,
+  AdapterModel,
   ServerAdapterModule,
   TranscriptEntry,
   StdoutLineParser,

packages/adapter-utils/src/server-utils.ts

@@ -201,15 +201,18 @@ export async function runChildProcess(
     let stderr = "";
     let logChain: Promise<void> = Promise.resolve();
 
-    const timeout = setTimeout(() => {
-      timedOut = true;
-      child.kill("SIGTERM");
-      setTimeout(() => {
-        if (!child.killed) {
-          child.kill("SIGKILL");
-        }
-      }, Math.max(1, opts.graceSec) * 1000);
-    }, Math.max(1, opts.timeoutSec) * 1000);
+    const timeout =
+      opts.timeoutSec > 0
+        ? setTimeout(() => {
+            timedOut = true;
+            child.kill("SIGTERM");
+            setTimeout(() => {
+              if (!child.killed) {
+                child.kill("SIGKILL");
+              }
+            }, Math.max(1, opts.graceSec) * 1000);
+          }, opts.timeoutSec * 1000)
+        : null;
 
     child.stdout?.on("data", (chunk) => {
       const text = String(chunk);
@@ -228,7 +231,7 @@ export async function runChildProcess(
     });
 
     child.on("error", (err) => {
-      clearTimeout(timeout);
+      if (timeout) clearTimeout(timeout);
       runningProcesses.delete(runId);
       const errno = (err as NodeJS.ErrnoException).code;
       const pathValue = mergedEnv.PATH ?? mergedEnv.Path ?? "";
@@ -240,7 +243,7 @@ export async function runChildProcess(
     });
 
     child.on("close", (code, signal) => {
-      clearTimeout(timeout);
+      if (timeout) clearTimeout(timeout);
       runningProcesses.delete(runId);
       void logChain.finally(() => {
         resolve({

packages/adapter-utils/src/types.ts

@@ -77,12 +77,18 @@ export interface AdapterExecutionContext {
   authToken?: string;
 }
 
+export interface AdapterModel {
+  id: string;
+  label: string;
+}
+
 export interface ServerAdapterModule {
   type: string;
   execute(ctx: AdapterExecutionContext): Promise<AdapterExecutionResult>;
   sessionCodec?: AdapterSessionCodec;
   supportsLocalAgentJwt?: boolean;
-  models?: { id: string; label: string }[];
+  models?: AdapterModel[];
+  listModels?: () => Promise<AdapterModel[]>;
   agentConfigurationDoc?: string;
 }
 
@@ -122,6 +128,7 @@ export interface CreateConfigValues {
   cwd: string;
   promptTemplate: string;
   model: string;
+  thinkingEffort: string;
   dangerouslySkipPermissions: boolean;
   search: boolean;
   dangerouslyBypassSandbox: boolean;