Agents: add pluggable CLIs

Co-authored-by: RealSid08 <RealSid08@users.noreply.github.com>

src/agents/index.ts

@@ -0,0 +1,19 @@
+import { claudeSpec } from "./claude.js";
+import { codexSpec } from "./codex.js";
+import { opencodeSpec } from "./opencode.js";
+import { piSpec } from "./pi.js";
+import type { AgentKind, AgentSpec } from "./types.js";
+
+const specs: Record<AgentKind, AgentSpec> = {
+  claude: claudeSpec,
+  codex: codexSpec,
+  opencode: opencodeSpec,
+  pi: piSpec,
+};
+
+export function getAgentSpec(kind: AgentKind): AgentSpec {
+  return specs[kind];
+}
+
+export { AgentKind, AgentMeta, AgentParseResult } from "./types.js";
+