chore: Fix TypeScript errors 2/n.

src/agents/pi-embedded-runner/run/attempt.ts

@@ -2,7 +2,7 @@ import fs from "node:fs/promises";
 import os from "node:os";
 
 import type { AgentMessage } from "@mariozechner/pi-agent-core";
-import type { AssistantMessage, ImageContent } from "@mariozechner/pi-ai";
+import type { ImageContent } from "@mariozechner/pi-ai";
 import { streamSimple } from "@mariozechner/pi-ai";
 import {
   createAgentSession,
@@ -869,7 +869,7 @@ export async function runEmbeddedAttempt(
       const lastAssistant = messagesSnapshot
         .slice()
         .toReversed()
-        .find((m) => m?.role === "assistant") as AssistantMessage | undefined;
+        .find((m) => m?.role === "assistant");
 
       const toolMetasNormalized = toolMetas
         .filter(

src/agents/tools/sessions-announce-target.ts

@@ -2,6 +2,7 @@ import { getChannelPlugin, normalizeChannelId } from "../../channels/plugins/ind
 import { callGateway } from "../../gateway/call.js";
 import type { AnnounceTarget } from "./sessions-send-helpers.js";
 import { resolveAnnounceTargetFromKey } from "./sessions-send-helpers.js";
+import { SessionListRow } from "./sessions-helpers.js";
 
 export async function resolveAnnounceTarget(params: {
   sessionKey: string;
@@ -20,7 +21,7 @@ export async function resolveAnnounceTarget(params: {
   }
 
   try {
-    const list = await callGateway({
+    const list = await callGateway<{ sessions: Array<SessionListRow> }>({
       method: "sessions.list",
       params: {
         includeGlobal: true,

src/agents/tools/sessions-helpers.ts

@@ -167,7 +167,7 @@ async function resolveSessionKeyFromSessionId(params: {
 }): Promise<SessionReferenceResolution> {
   try {
     // Resolve via gateway so we respect store routing and visibility rules.
-    const result = await callGateway({
+    const result = await callGateway<{ key?: string }>({
       method: "sessions.resolve",
       params: {
         sessionId: params.sessionId,
@@ -220,7 +220,7 @@ async function resolveSessionKeyFromKey(params: {
 }): Promise<SessionReferenceResolution | null> {
   try {
     // Try key-based resolution first so non-standard keys keep working.
-    const result = await callGateway({
+    const result = await callGateway<{ key?: string }>({
       method: "sessions.resolve",
       params: {
         key: params.key,

src/agents/tools/sessions-history-tool.ts

@@ -10,6 +10,7 @@ import {
   resolveSessionReference,
   resolveMainSessionAlias,
   resolveInternalSessionKey,
+  SessionListRow,
   stripToolMessages,
 } from "./sessions-helpers.js";
 
@@ -28,7 +29,7 @@ async function isSpawnedSessionAllowed(params: {
   targetSessionKey: string;
 }): Promise<boolean> {
   try {
-    const list = await callGateway({
+    const list = await callGateway<{ sessions: Array<SessionListRow> }>({
       method: "sessions.list",
       params: {
         includeGlobal: false,
@@ -126,7 +127,7 @@ export function createSessionsHistoryTool(opts?: {
           ? Math.max(1, Math.floor(params.limit))
           : undefined;
       const includeTools = Boolean(params.includeTools);
-      const result = await callGateway({
+      const result = await callGateway<{ messages: Array<unknown> }>({
         method: "chat.history",
         params: { sessionKey: resolvedKey, limit },
       });

src/agents/tools/sessions-list-tool.ts

@@ -79,7 +79,7 @@ export function createSessionsListTool(opts?: {
           : 0;
       const messageLimit = Math.min(messageLimitRaw, 20);
 
-      const list = await callGateway({
+      const list = await callGateway<{ sessions: Array<SessionListRow>; path: string }>({
         method: "sessions.list",
         params: {
           limit,
@@ -196,7 +196,7 @@ export function createSessionsListTool(opts?: {
             alias,
             mainKey,
           });
-          const history = await callGateway({
+          const history = await callGateway<{ messages: Array<unknown> }>({
             method: "chat.history",
             params: { sessionKey: resolvedKey, limit: messageLimit },
           });

src/agents/tools/sessions-send-tool.a2a.ts

@@ -33,7 +33,7 @@ export async function runSessionsSendA2AFlow(params: {
     let latestReply = params.roundOneReply;
     if (!primaryReply && params.waitRunId) {
       const waitMs = Math.min(params.announceTimeoutMs, 60_000);
-      const wait = await callGateway({
+      const wait = await callGateway<{ status: string }>({
         method: "agent.wait",
         params: {
           runId: params.waitRunId,