fix(agents): default agent dir to multi-agent path

src/agents/agent-paths.test.ts

@@ -0,0 +1,58 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+
+import { afterEach, describe, expect, it } from "vitest";
+
+import { resolveClawdbotAgentDir } from "./agent-paths.js";
+
+describe("resolveClawdbotAgentDir", () => {
+  const previousStateDir = process.env.CLAWDBOT_STATE_DIR;
+  const previousAgentDir = process.env.CLAWDBOT_AGENT_DIR;
+  const previousPiAgentDir = process.env.PI_CODING_AGENT_DIR;
+  let tempStateDir: string | null = null;
+
+  afterEach(async () => {
+    if (tempStateDir) {
+      await fs.rm(tempStateDir, { recursive: true, force: true });
+      tempStateDir = null;
+    }
+    if (previousStateDir === undefined) {
+      delete process.env.CLAWDBOT_STATE_DIR;
+    } else {
+      process.env.CLAWDBOT_STATE_DIR = previousStateDir;
+    }
+    if (previousAgentDir === undefined) {
+      delete process.env.CLAWDBOT_AGENT_DIR;
+    } else {
+      process.env.CLAWDBOT_AGENT_DIR = previousAgentDir;
+    }
+    if (previousPiAgentDir === undefined) {
+      delete process.env.PI_CODING_AGENT_DIR;
+    } else {
+      process.env.PI_CODING_AGENT_DIR = previousPiAgentDir;
+    }
+  });
+
+  it("defaults to the multi-agent path when no overrides are set", async () => {
+    tempStateDir = await fs.mkdtemp(path.join(os.tmpdir(), "clawdbot-agent-"));
+    process.env.CLAWDBOT_STATE_DIR = tempStateDir;
+    delete process.env.CLAWDBOT_AGENT_DIR;
+    delete process.env.PI_CODING_AGENT_DIR;
+
+    const resolved = resolveClawdbotAgentDir();
+
+    expect(resolved).toBe(path.join(tempStateDir, "agents", "main", "agent"));
+  });
+
+  it("honors CLAWDBOT_AGENT_DIR overrides", async () => {
+    tempStateDir = await fs.mkdtemp(path.join(os.tmpdir(), "clawdbot-agent-"));
+    const override = path.join(tempStateDir, "agent");
+    process.env.CLAWDBOT_AGENT_DIR = override;
+    delete process.env.PI_CODING_AGENT_DIR;
+
+    const resolved = resolveClawdbotAgentDir();
+
+    expect(resolved).toBe(path.resolve(override));
+  });
+});