fix: msteams attachments + plugin prompt hints

Co-authored-by: Christof <10854026+Evizero@users.noreply.github.com>

src/agents/pi-embedded-runner/compact.ts

@@ -5,7 +5,7 @@ import { createAgentSession, SessionManager, SettingsManager } from "@mariozechn
 
 import { resolveHeartbeatPrompt } from "../../auto-reply/heartbeat.js";
 import type { ReasoningLevel, ThinkLevel } from "../../auto-reply/thinking.js";
-import { listChannelSupportedActions } from "../channel-tools.js";
+import { listChannelSupportedActions, resolveChannelMessageToolHints } from "../channel-tools.js";
 import { resolveChannelCapabilities } from "../../config/channel-capabilities.js";
 import type { ClawdbotConfig } from "../../config/config.js";
 import { getMachineDisplayName } from "../../infra/machine-name.js";
@@ -245,6 +245,13 @@ export async function compactEmbeddedPiSession(params: {
               channel: runtimeChannel,
             })
           : undefined;
+        const messageToolHints = runtimeChannel
+          ? resolveChannelMessageToolHints({
+              cfg: params.config,
+              channel: runtimeChannel,
+              accountId: params.agentAccountId,
+            })
+          : undefined;
 
         const runtimeInfo = {
           host: machineName,
@@ -287,6 +294,7 @@ export async function compactEmbeddedPiSession(params: {
           docsPath: docsPath ?? undefined,
           promptMode,
           runtimeInfo,
+          messageToolHints,
           sandboxInfo,
           tools,
           modelAliasLines: buildModelAliasLines(params.config),

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

@@ -7,7 +7,10 @@ import { streamSimple } from "@mariozechner/pi-ai";
 import { createAgentSession, SessionManager, SettingsManager } from "@mariozechner/pi-coding-agent";
 
 import { resolveHeartbeatPrompt } from "../../../auto-reply/heartbeat.js";
-import { listChannelSupportedActions } from "../../channel-tools.js";
+import {
+  listChannelSupportedActions,
+  resolveChannelMessageToolHints,
+} from "../../channel-tools.js";
 import { resolveChannelCapabilities } from "../../../config/channel-capabilities.js";
 import { getMachineDisplayName } from "../../../infra/machine-name.js";
 import { resolveTelegramInlineButtonsScope } from "../../../telegram/inline-buttons.js";
@@ -260,6 +263,13 @@ export async function runEmbeddedAttempt(
           channel: runtimeChannel,
         })
       : undefined;
+    const messageToolHints = runtimeChannel
+      ? resolveChannelMessageToolHints({
+          cfg: params.config,
+          channel: runtimeChannel,
+          accountId: params.agentAccountId,
+        })
+      : undefined;
 
     const defaultModelRef = resolveDefaultModelForAgent({
       cfg: params.config ?? {},
@@ -305,6 +315,7 @@ export async function runEmbeddedAttempt(
       reactionGuidance,
       promptMode,
       runtimeInfo,
+      messageToolHints,
       sandboxInfo,
       tools,
       modelAliasLines: buildModelAliasLines(params.config),

src/agents/pi-embedded-runner/system-prompt.ts

@@ -35,6 +35,7 @@ export function buildEmbeddedSystemPrompt(params: {
     /** Supported message actions for the current channel (e.g., react, edit, unsend) */
     channelActions?: string[];
   };
+  messageToolHints?: string[];
   sandboxInfo?: EmbeddedSandboxInfo;
   tools: AgentTool[];
   modelAliasLines: string[];
@@ -56,6 +57,7 @@ export function buildEmbeddedSystemPrompt(params: {
     reactionGuidance: params.reactionGuidance,
     promptMode: params.promptMode,
     runtimeInfo: params.runtimeInfo,
+    messageToolHints: params.messageToolHints,
     sandboxInfo: params.sandboxInfo,
     toolNames: params.tools.map((tool) => tool.name),
     toolSummaries: buildToolSummaryMap(params.tools),