diff --git a/codex-cli/src/utils/agent/agent-loop.ts b/codex-cli/src/utils/agent/agent-loop.ts
index 5cde3b16..3d34dee3 100644
--- a/codex-cli/src/utils/agent/agent-loop.ts
+++ b/codex-cli/src/utils/agent/agent-loop.ts
@@ -649,7 +649,7 @@ export class AgentLoop {
                           "The maximum time to wait for the command to complete in milliseconds.",
                       },
                     },
-                    required: ["command"],
+                    required: ["command", "workdir", "timeout"],
                     additionalProperties: false,
                   },
                 },