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/claude.py

@@ -0,0 +1,49 @@
+"""Claude-specific CLI agent hooks."""
+
+from __future__ import annotations
+
+from clink.models import ResolvedCLIRole
+from clink.parsers.base import ParserError
+
+from .base import AgentOutput, BaseCLIAgent
+
+
+class ClaudeAgent(BaseCLIAgent):
+    """Claude CLI agent with system-prompt injection support."""
+
+    def _build_command(self, *, role: ResolvedCLIRole, system_prompt: str | None) -> list[str]:
+        command = list(self.client.executable)
+        command.extend(self.client.internal_args)
+        command.extend(self.client.config_args)
+
+        if system_prompt and "--append-system-prompt" not in self.client.config_args:
+            command.extend(["--append-system-prompt", system_prompt])
+
+        command.extend(role.role_args)
+        return command
+
+    def _recover_from_error(
+        self,
+        *,
+        returncode: int,
+        stdout: str,
+        stderr: str,
+        sanitized_command: list[str],
+        duration_seconds: float,
+        output_file_content: str | None,
+    ) -> AgentOutput | None:
+        try:
+            parsed = self._parser.parse(stdout, stderr)
+        except ParserError:
+            return None
+
+        return AgentOutput(
+            parsed=parsed,
+            sanitized_command=sanitized_command,
+            returncode=returncode,
+            stdout=stdout,
+            stderr=stderr,
+            duration_seconds=duration_seconds,
+            parser_name=self._parser.name,
+            output_file_content=output_file_content,
+        )