feat! Claude Code as a CLI agent now supported. Mix and match: spawn claude code from within claude code, or claude code from within codex.

Stay in codex, plan review and fix complicated bugs, then ask it to spawn claude code and implement the plan.

This uses your current subscription instead of API tokens.

clink/agents/base.py

@@ -57,6 +57,7 @@ class BaseCLIAgent:
         *,
         role: ResolvedCLIRole,
         prompt: str,
+        system_prompt: str | None = None,
         files: Sequence[str],
         images: Sequence[str],
     ) -> AgentOutput:
@@ -64,7 +65,7 @@ class BaseCLIAgent:
         # accepted here only to keep parity with SimpleTool callers.
         _ = (files, images)
         # The runner simply executes the configured CLI command for the selected role.
-        command = self._build_command(role=role)
+        command = self._build_command(role=role, system_prompt=system_prompt)
         env = self._build_environment()
 
         # Resolve executable path for cross-platform compatibility (especially Windows)
@@ -189,7 +190,7 @@ class BaseCLIAgent:
             output_file_content=output_file_content,
         )
 
-    def _build_command(self, *, role: ResolvedCLIRole) -> list[str]:
+    def _build_command(self, *, role: ResolvedCLIRole, system_prompt: str | None) -> list[str]:
         base = list(self.client.executable)
         base.extend(self.client.internal_args)
         base.extend(self.client.config_args)