feat(messages): add whatsapp messagePrefix and responsePrefix auto

src/agents/identity.test.ts

@@ -0,0 +1,65 @@
+import { describe, expect, it } from "vitest";
+import type { ClawdbotConfig } from "../config/config.js";
+import { resolveMessagePrefix, resolveResponsePrefix } from "./identity.js";
+
+describe("message prefix resolution", () => {
+  it("returns configured messagePrefix override", () => {
+    const cfg: ClawdbotConfig = {};
+    expect(
+      resolveMessagePrefix(cfg, "main", {
+        configured: "[x]",
+        hasAllowFrom: true,
+      }),
+    ).toBe("[x]");
+    expect(
+      resolveMessagePrefix(cfg, "main", {
+        configured: "",
+        hasAllowFrom: false,
+      }),
+    ).toBe("");
+  });
+
+  it("defaults messagePrefix based on allowFrom + identity", () => {
+    const cfg: ClawdbotConfig = {
+      agents: { list: [{ id: "main", identity: { name: "Richbot" } }] },
+    };
+    expect(resolveMessagePrefix(cfg, "main", { hasAllowFrom: true })).toBe("");
+    expect(resolveMessagePrefix(cfg, "main", { hasAllowFrom: false })).toBe(
+      "[Richbot]",
+    );
+  });
+
+  it("falls back to [clawdbot] when identity is missing", () => {
+    const cfg: ClawdbotConfig = {};
+    expect(resolveMessagePrefix(cfg, "main", { hasAllowFrom: false })).toBe(
+      "[clawdbot]",
+    );
+  });
+});
+
+describe("response prefix resolution", () => {
+  it("does not apply any default when unset", () => {
+    const cfg: ClawdbotConfig = {
+      agents: { list: [{ id: "main", identity: { name: "Richbot" } }] },
+    };
+    expect(resolveResponsePrefix(cfg, "main")).toBeUndefined();
+  });
+
+  it("returns explicit responsePrefix when set", () => {
+    const cfg: ClawdbotConfig = { messages: { responsePrefix: "PFX" } };
+    expect(resolveResponsePrefix(cfg, "main")).toBe("PFX");
+  });
+
+  it("supports responsePrefix: auto (identity-derived opt-in)", () => {
+    const withIdentity: ClawdbotConfig = {
+      agents: { list: [{ id: "main", identity: { name: "Richbot" } }] },
+      messages: { responsePrefix: "auto" },
+    };
+    expect(resolveResponsePrefix(withIdentity, "main")).toBe("[Richbot]");
+
+    const withoutIdentity: ClawdbotConfig = {
+      messages: { responsePrefix: "auto" },
+    };
+    expect(resolveResponsePrefix(withoutIdentity, "main")).toBeUndefined();
+  });
+});