diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 41a1e69229..61addafe3b 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -1,5 +1,8 @@
 # Core crate ownership.
+/codex-rs/arg0/ @openai/codex-core-agent-team
+/codex-rs/codex-mcp/ @openai/codex-core-agent-team
 /codex-rs/core/ @openai/codex-core-agent-team
+/codex-rs/exec-server/ @openai/codex-core-agent-team
 /codex-rs/exec-server-protocol/ @openai/codex-core-agent-team
 /codex-rs/ext/extension-api/ @openai/codex-core-agent-team
 /codex-rs/prompts/ @openai/codex-core-agent-team