diff --git a/worker/src/routes/auth.ts b/worker/src/routes/auth.ts
index 4d87260..10f3270 100644
--- a/worker/src/routes/auth.ts
+++ b/worker/src/routes/auth.ts
@@ -973,7 +973,17 @@ export async function handleAgentManifest(c: Context<{ Bindings: Env }>) {
   // keep the machine contract unchanged, just point callers at `migration-help`.
   const service = c.env.RAFT_CLIENT_ID || "hands-4cc7a2";
   const DEPRECATION_PREFIX = `Deprecated — run raft integration invoke --service ${service} --action migration-help for Hands CLI installation and migration guidance. `;
-  const NEW_ACTIONS = new Set(["agent-login", "migration-help"]);
+  const NEW_ACTIONS = new Set([
+    "agent-login",
+    "migration-help",
+    // Decision (2026-09, #167 follow-up / #175): these three are newly added actions, so they are
+    // registered here deliberately. This set is what stops the migration nudge from being
+    // prepended; without it a brand-new action would ship labelled "Deprecated". Membership is a
+    // statement about provenance (added after the migration), not about stability or support.
+    "list-builds",
+    "update-channel",
+    "delete-channel",
+  ]);
   const applyDeprecation = (
     list: Array<{ name: string; description: string; [k: string]: unknown }>,
   ) => list.map((a) => (NEW_ACTIONS.has(a.name) ? a : { ...a, description: DEPRECATION_PREFIX + a.description }));
@@ -1195,6 +1205,32 @@ export async function handleAgentManifest(c: Context<{ Bindings: Env }>) {
         description:
           "Create a release channel on an app (channels are never auto-created by publish). Requires app admin. Creating a channel activates nothing.",
       },
+      {
+        name: "update-channel",
+        description:
+          "Change a release channel's settings. Requires app admin. Fields omitted from the body are left unchanged; a body with none of them is rejected with \"nothing to update\".",
+        endpoint: { method: "PATCH", path: "/api/apps/{app_id}/channels/{channel_id}" },
+        parameters: {
+          app_id: { type: "string", in: "path", required: true, description: "App UUID." },
+          channel_id: { type: "string", in: "path", required: true, description: "Channel UUID." },
+          name: { type: "string", in: "body", required: false, description: "New display name." },
+          bundle_id: { type: "string", in: "body", required: false, description: "New bundle id; an empty string clears it." },
+          password: { type: "string", in: "body", required: false, description: "New shared password; an empty string clears it." },
+          git_url: { type: "string", in: "body", required: false, description: "New git url; an empty string clears it." },
+          enabled_product_types: { type: "array", in: "body", required: false, description: "Replacement product-type allowlist; stored as JSON." },
+          metadata: { type: "object", in: "body", required: false, description: "Opaque metadata object; stored as JSON." },
+        },
+      },
+      {
+        name: "delete-channel",
+        description:
+          "Delete a release channel. Requires app admin. Refused (not cascaded) while any build or release still references the channel.",
+        endpoint: { method: "DELETE", path: "/api/apps/{app_id}/channels/{channel_id}" },
+        parameters: {
+          app_id: { type: "string", in: "path", required: true, description: "App UUID." },
+          channel_id: { type: "string", in: "path", required: true, description: "Channel UUID." },
+        },
+      },
       {
         name: "list-device-groups",
         description: "List app-scoped rollout device groups and their installation device ids. Requires app publisher.",
@@ -1611,6 +1647,19 @@ export async function handleAgentManifest(c: Context<{ Bindings: Env }>) {
           bundle_id: { type: "string", in: "query", required: false, description: "Optional bundle-id assertion; it must match immutable build metadata, and is only a fallback when metadata is absent." },
         },
       },
+      {
+        name: "list-builds",
+        description:
+          "List an app's builds, newest first, capped at 200, with the same product/channel/status filters the CLI uses. Requires app viewer.",
+        endpoint: { method: "GET", path: "/api/apps/{app_id}/builds" },
+        parameters: {
+          app_id: { type: "string", in: "path", required: true, description: "App UUID." },
+          product_type: { type: "string", in: "query", required: false, description: "Filter by product type (e.g. cli-binary)." },
+          channel: { type: "string", in: "query", required: false, description: "Filter by channel id or slug." },
+          status: { type: "string", in: "query", required: false, description: "Filter by build status." },
+          version_name: { type: "string", in: "query", required: false, description: "Filter by version name." },
+        },
+      },
       {
         name: "list-build-assets",
         description:
diff --git a/worker/test/agent_login_routes.test.ts b/worker/test/agent_login_routes.test.ts
index 678351d..fa9bb31 100644
--- a/worker/test/agent_login_routes.test.ts
+++ b/worker/test/agent_login_routes.test.ts
@@ -232,6 +232,41 @@ describe("manifest: actions retained + deprecated, migration-help added", () =>
     expect(body.actions.find((a: any) => a.name === "migration-help").description.startsWith("Deprecated")).toBe(false);
     // machine contract unchanged: help still GET /api/agent/help
     expect(body.actions.find((a: any) => a.name === "help").endpoint).toEqual({ method: "GET", path: "/api/agent/help" });
+
+    // 2026-09 (#167 follow-up / #175): three actions added for surfaces that previously had no
+    // agent action. They are NEW, so the migration nudge must not label them deprecated.
+    for (const n of ["list-builds", "update-channel", "delete-channel"]) {
+      expect(names).toContain(n);
+      expect(body.actions.find((a: any) => a.name === n).description.startsWith("Deprecated")).toBe(false);
+    }
+    // Each maps to an endpoint the worker already serves, and declares the fields the handler reads.
+    const listBuilds = body.actions.find((a: any) => a.name === "list-builds");
+    expect(listBuilds.endpoint).toEqual({ method: "GET", path: "/api/apps/{app_id}/builds" });
+    expect(Object.keys(listBuilds.parameters).sort()).toEqual(
+      ["app_id", "channel", "product_type", "status", "version_name"].sort(),
+    );
+    const updateChannel = body.actions.find((a: any) => a.name === "update-channel");
+    expect(updateChannel.endpoint).toEqual({ method: "PATCH", path: "/api/apps/{app_id}/channels/{channel_id}" });
+    // The handler reads six body fields; listing fewer silently hides settable fields.
+    expect(Object.keys(updateChannel.parameters).sort()).toEqual(
+      ["app_id", "bundle_id", "channel_id", "enabled_product_types", "git_url", "metadata", "name", "password"].sort(),
+    );
+    const deleteChannel = body.actions.find((a: any) => a.name === "delete-channel");
+    expect(deleteChannel.endpoint).toEqual({ method: "DELETE", path: "/api/apps/{app_id}/channels/{channel_id}" });
+    // The Raft-side parser reads `parameters` only (a `params` key is ignored), so actions added
+    // here must use the key the parser actually reads.
+    for (const n of ["list-builds", "update-channel", "delete-channel"]) {
+      const a = body.actions.find((x: any) => x.name === n);
+      expect(a.parameters).toBeDefined();
+      expect(a.params).toBeUndefined();
+    }
+
+    // Structured body fields must use the labels the Raft side recognises. `invoke` treats only
+    // `array` and `object` as structured types (slock commands/integration/invoke.ts:308-316), so a
+    // `string[]` or `string` label for a structured field silently loses the value. Assert the
+    // labels, not just the field names.
+    expect(updateChannel.parameters.enabled_product_types.type).toBe("array");
+    expect(updateChannel.parameters.metadata.type).toBe("object");
   });
 
   it("migration-help endpoint returns install + login guidance", async () => {