diff --git a/src/agents/channel-tools.ts b/src/agents/channel-tools.ts
index b6c36682a1f..53affcf2399 100644
--- a/src/agents/channel-tools.ts
+++ b/src/agents/channel-tools.ts
@@ -6,6 +6,10 @@ import {
   resolveCurrentChannelMessageToolDiscoveryAdapter,
   __testing as messageActionTesting,
 } from "../channels/plugins/message-action-discovery.js";
+import {
+  channelPluginHasNativeApprovalPromptUi,
+  NATIVE_APPROVAL_PROMPT_RUNTIME_CAPABILITY,
+} from "../channels/plugins/native-approval-prompt.js";
 import type {
   ChannelAgentTool,
   ChannelMessageActionName,
@@ -144,9 +148,31 @@ export function resolveChannelMessageToolCapabilities(params: {
     return [];
   }
   const cfg = params.cfg ?? ({} as OpenClawConfig);
-  return (resolve({ cfg, accountId: params.accountId }) ?? [])
-    .map((entry) => entry.trim())
-    .filter(Boolean);
+  return normalizePromptCapabilities(resolve({ cfg, accountId: params.accountId }));
+}
+
+export function resolveChannelPromptCapabilities(params: {
+  cfg?: OpenClawConfig;
+  channel?: string | null;
+  accountId?: string | null;
+}): string[] {
+  const channelId = normalizeAnyChannelId(params.channel);
+  if (!channelId) {
+    return [];
+  }
+  const plugin = getChannelPlugin(channelId);
+  const cfg = params.cfg ?? ({} as OpenClawConfig);
+  const capabilities = normalizePromptCapabilities(
+    plugin?.agentPrompt?.messageToolCapabilities?.({ cfg, accountId: params.accountId }),
+  );
+  if (channelPluginHasNativeApprovalPromptUi(plugin)) {
+    capabilities.push(NATIVE_APPROVAL_PROMPT_RUNTIME_CAPABILITY);
+  }
+  return capabilities;
+}
+
+function normalizePromptCapabilities(capabilities?: readonly string[] | null): string[] {
+  return (capabilities ?? []).map((entry) => entry.trim()).filter(Boolean);
 }
 
 export function resolveChannelReactionGuidance(params: {
diff --git a/src/agents/pi-embedded-runner/compact.ts b/src/agents/pi-embedded-runner/compact.ts
index 6b14b2d9f93..61853e9e759 100644
--- a/src/agents/pi-embedded-runner/compact.ts
+++ b/src/agents/pi-embedded-runner/compact.ts
@@ -9,7 +9,6 @@ import {
 } from "@mariozechner/pi-coding-agent";
 import { isAcpRuntimeSpawnAvailable } from "../../acp/runtime/availability.js";
 import type { ThinkLevel } from "../../auto-reply/thinking.js";
-import { resolveChannelCapabilities } from "../../config/channel-capabilities.js";
 import type { OpenClawConfig } from "../../config/types.openclaw.js";
 import {
   captureCompactionCheckpointSnapshot,
@@ -30,7 +29,6 @@ import {
   transformProviderSystemPrompt,
 } from "../../plugins/provider-runtime.js";
 import { isCronSessionKey, isSubagentSessionKey } from "../../routing/session-key.js";
-import { normalizeOptionalLowercaseString } from "../../shared/string-coerce.js";
 import { buildTtsSystemPromptHint } from "../../tts/tts.js";
 import { resolveUserPath } from "../../utils.js";
 import { normalizeMessageChannel } from "../../utils/message-channel.js";
@@ -44,7 +42,6 @@ import {
 } from "../bootstrap-files.js";
 import {
   listChannelSupportedActions,
-  resolveChannelMessageToolCapabilities,
   resolveChannelMessageToolHints,
   resolveChannelReactionGuidance,
 } from "../channel-tools.js";
@@ -79,6 +76,7 @@ import { applyPiCompactionSettingsFromConfig } from "../pi-settings.js";
 import { createOpenClawCodingTools } from "../pi-tools.js";
 import { wrapStreamFnTextTransforms } from "../plugin-text-transforms.js";
 import { registerProviderStreamForModel } from "../provider-stream.js";
+import { collectRuntimeChannelCapabilities } from "../runtime-capabilities.js";
 import { buildAgentRuntimePlan } from "../runtime-plan/build.js";
 import type { AgentRuntimePlan } from "../runtime-plan/types.js";
 import { ensureRuntimePluginsLoaded } from "../runtime-plugins.js";
@@ -634,35 +632,11 @@ export async function compactEmbeddedPiSessionDirect(
     runtimePlan.tools.logDiagnostics(effectiveTools, runtimePlanModelContext);
     const machineName = await getMachineDisplayName();
     const runtimeChannel = normalizeMessageChannel(params.messageChannel ?? params.messageProvider);
-    let runtimeCapabilities = runtimeChannel
-      ? (resolveChannelCapabilities({
-          cfg: params.config,
-          channel: runtimeChannel,
-          accountId: params.agentAccountId,
-        }) ?? [])
-      : undefined;
-    const promptCapabilities =
-      runtimeChannel && params.config
-        ? resolveChannelMessageToolCapabilities({
-            cfg: params.config,
-            channel: runtimeChannel,
-            accountId: params.agentAccountId,
-          })
-        : [];
-    if (promptCapabilities.length > 0) {
-      runtimeCapabilities ??= [];
-      const seenCapabilities = new Set(
-        runtimeCapabilities.map((cap) => normalizeOptionalLowercaseString(cap)).filter(Boolean),
-      );
-      for (const capability of promptCapabilities) {
-        const normalizedCapability = normalizeOptionalLowercaseString(capability);
-        if (!normalizedCapability || seenCapabilities.has(normalizedCapability)) {
-          continue;
-        }
-        seenCapabilities.add(normalizedCapability);
-        runtimeCapabilities.push(capability);
-      }
-    }
+    const runtimeCapabilities = collectRuntimeChannelCapabilities({
+      cfg: params.config,
+      channel: runtimeChannel,
+      accountId: params.agentAccountId,
+    });
     const reactionGuidance =
       runtimeChannel && params.config
         ? resolveChannelReactionGuidance({
diff --git a/src/agents/pi-embedded-runner/run/attempt.ts b/src/agents/pi-embedded-runner/run/attempt.ts
index 180e381afad..545aa1c5acb 100644
--- a/src/agents/pi-embedded-runner/run/attempt.ts
+++ b/src/agents/pi-embedded-runner/run/attempt.ts
@@ -9,7 +9,6 @@ import {
 } from "@mariozechner/pi-coding-agent";
 import { isAcpRuntimeSpawnAvailable } from "../../../acp/runtime/availability.js";
 import { filterHeartbeatPairs } from "../../../auto-reply/heartbeat-filter.js";
-import { resolveChannelCapabilities } from "../../../config/channel-capabilities.js";
 import { getRuntimeConfig } from "../../../config/config.js";
 import { emitTrustedDiagnosticEvent } from "../../../infra/diagnostic-events.js";
 import {
@@ -36,7 +35,6 @@ import {
 import { getPluginToolMeta } from "../../../plugins/tools.js";
 import { isAcpSessionKey, isSubagentSessionKey } from "../../../routing/session-key.js";
 import { annotateInterSessionPromptText } from "../../../sessions/input-provenance.js";
-import { normalizeOptionalLowercaseString } from "../../../shared/string-coerce.js";
 import { normalizeOptionalString } from "../../../shared/string-coerce.js";
 import {
   buildTrajectoryArtifacts,
@@ -71,7 +69,6 @@ import {
 import { createCacheTrace } from "../../cache-trace.js";
 import {
   listChannelSupportedActions,
-  resolveChannelMessageToolCapabilities,
   resolveChannelMessageToolHints,
   resolveChannelReactionGuidance,
 } from "../../channel-tools.js";
@@ -122,6 +119,7 @@ import {
 import { wrapStreamFnTextTransforms } from "../../plugin-text-transforms.js";
 import { describeProviderRequestRoutingSummary } from "../../provider-attribution.js";
 import { registerProviderStreamForModel } from "../../provider-stream.js";
+import { collectRuntimeChannelCapabilities } from "../../runtime-capabilities.js";
 import {
   logAgentRuntimeToolDiagnostics,
   normalizeAgentRuntimeTools,
@@ -1006,35 +1004,11 @@ export async function runEmbeddedAttempt(
 
     const machineName = await getMachineDisplayName();
     const runtimeChannel = normalizeMessageChannel(params.messageChannel ?? params.messageProvider);
-    let runtimeCapabilities = runtimeChannel
-      ? (resolveChannelCapabilities({
-          cfg: params.config,
-          channel: runtimeChannel,
-          accountId: params.agentAccountId,
-        }) ?? [])
-      : undefined;
-    const promptCapabilities =
-      runtimeChannel && params.config
-        ? resolveChannelMessageToolCapabilities({
-            cfg: params.config,
-            channel: runtimeChannel,
-            accountId: params.agentAccountId,
-          })
-        : [];
-    if (promptCapabilities.length > 0) {
-      runtimeCapabilities ??= [];
-      const seenCapabilities = new Set(
-        runtimeCapabilities.map((cap) => normalizeOptionalLowercaseString(cap)).filter(Boolean),
-      );
-      for (const capability of promptCapabilities) {
-        const normalizedCapability = normalizeOptionalLowercaseString(capability);
-        if (!normalizedCapability || seenCapabilities.has(normalizedCapability)) {
-          continue;
-        }
-        seenCapabilities.add(normalizedCapability);
-        runtimeCapabilities.push(capability);
-      }
-    }
+    const runtimeCapabilities = collectRuntimeChannelCapabilities({
+      cfg: params.config,
+      channel: runtimeChannel,
+      accountId: params.agentAccountId,
+    });
     const reactionGuidance =
       runtimeChannel && params.config
         ? resolveChannelReactionGuidance({
diff --git a/src/agents/runtime-capabilities.ts b/src/agents/runtime-capabilities.ts
new file mode 100644
index 00000000000..8d439846c80
--- /dev/null
+++ b/src/agents/runtime-capabilities.ts
@@ -0,0 +1,39 @@
+import { resolveChannelCapabilities } from "../config/channel-capabilities.js";
+import type { OpenClawConfig } from "../config/types.openclaw.js";
+import { normalizeOptionalLowercaseString } from "../shared/string-coerce.js";
+import { resolveChannelPromptCapabilities } from "./channel-tools.js";
+
+export function mergeRuntimeCapabilities(
+  base?: readonly string[] | null,
+  additions: readonly string[] = [],
+): string[] | undefined {
+  const merged = [...(base ?? [])];
+  const seen = new Set(
+    merged.map((capability) => normalizeOptionalLowercaseString(capability)).filter(Boolean),
+  );
+
+  for (const capability of additions) {
+    const normalizedCapability = normalizeOptionalLowercaseString(capability);
+    if (!normalizedCapability || seen.has(normalizedCapability)) {
+      continue;
+    }
+    seen.add(normalizedCapability);
+    merged.push(capability);
+  }
+
+  return merged.length > 0 ? merged : undefined;
+}
+
+export function collectRuntimeChannelCapabilities(params: {
+  cfg?: OpenClawConfig;
+  channel?: string | null;
+  accountId?: string | null;
+}): string[] | undefined {
+  if (!params.channel) {
+    return undefined;
+  }
+  return mergeRuntimeCapabilities(
+    resolveChannelCapabilities(params),
+    params.cfg ? resolveChannelPromptCapabilities(params) : [],
+  );
+}
diff --git a/src/agents/system-prompt.test.ts b/src/agents/system-prompt.test.ts
index cb252c88f94..c7dfb768cad 100644
--- a/src/agents/system-prompt.test.ts
+++ b/src/agents/system-prompt.test.ts
@@ -812,6 +812,18 @@ describe("buildAgentSystemPrompt", () => {
     expect(prompt).toContain("do not also send plain chat /approve instructions");
   });
 
+  it("suppresses plain chat approval commands for native approval channels", () => {
+    const prompt = buildAgentSystemPrompt({
+      workspaceDir: "/tmp/openclaw",
+      runtimeInfo: {
+        channel: "slack",
+      },
+    });
+
+    expect(prompt).toContain("rely on native approval card/buttons when they appear");
+    expect(prompt).toContain("do not also send plain chat /approve instructions");
+  });
+
   it("keeps approval slug guidance separate from command previews", () => {
     const prompt = buildAgentSystemPrompt({
       workspaceDir: "/tmp/openclaw",
diff --git a/src/agents/system-prompt.ts b/src/agents/system-prompt.ts
index 6305385fd48..949b6bdb7e6 100644
--- a/src/agents/system-prompt.ts
+++ b/src/agents/system-prompt.ts
@@ -2,8 +2,10 @@ import { createHmac, createHash } from "node:crypto";
 import type { SourceReplyDeliveryMode } from "../auto-reply/get-reply-options.types.js";
 import type { ReasoningLevel, ThinkLevel } from "../auto-reply/thinking.js";
 import { SILENT_REPLY_TOKEN } from "../auto-reply/tokens.js";
-import { resolveChannelApprovalCapability } from "../channels/plugins/approvals.js";
-import { getChannelPlugin } from "../channels/plugins/index.js";
+import {
+  hasNativeApprovalPromptRuntimeCapability,
+  isKnownNativeApprovalPromptChannel,
+} from "../channels/plugins/native-approval-prompt.js";
 import type { MemoryCitationsMode } from "../config/types.memory.js";
 import { buildMemoryPromptSection } from "../plugins/memory-state.js";
 import {
@@ -141,13 +143,13 @@ function buildHeartbeatSection(params: { isMinimal: boolean; heartbeatPrompt?: s
 function buildExecApprovalPromptGuidance(params: {
   runtimeChannel?: string;
   inlineButtonsEnabled?: boolean;
+  runtimeCapabilities?: readonly string[];
 }) {
   const runtimeChannel = normalizeOptionalLowercaseString(params.runtimeChannel);
   const usesNativeApprovalUi =
     params.inlineButtonsEnabled ||
-    (runtimeChannel
-      ? Boolean(resolveChannelApprovalCapability(getChannelPlugin(runtimeChannel))?.native)
-      : false);
+    hasNativeApprovalPromptRuntimeCapability(params.runtimeCapabilities) ||
+    isKnownNativeApprovalPromptChannel(runtimeChannel);
   if (usesNativeApprovalUi) {
     return 'When exec returns approval-pending on this channel, rely on native approval card/buttons when they appear and do not also send plain chat /approve instructions. Only include the concrete /approve command if the tool result says chat approvals are unavailable or only manual approval is possible; when needed, copy the exact /approve command from the tool output\'s "Reply with:" line.';
   }
@@ -769,6 +771,7 @@ export function buildAgentSystemPrompt(params: {
         buildExecApprovalPromptGuidance({
           runtimeChannel: params.runtimeInfo?.channel,
           inlineButtonsEnabled,
+          runtimeCapabilities,
         }),
         "Never execute /approve through exec or any other shell/tool path; /approve is a user-facing approval command, not a shell command.",
         "Treat allow-once as single-command only: if another elevated command needs approval, request a fresh /approve and do not claim prior approval covered it.",
diff --git a/src/channels/plugins/native-approval-prompt.ts b/src/channels/plugins/native-approval-prompt.ts
new file mode 100644
index 00000000000..20d681479bc
--- /dev/null
+++ b/src/channels/plugins/native-approval-prompt.ts
@@ -0,0 +1,42 @@
+import { normalizeOptionalLowercaseString } from "../../shared/string-coerce.js";
+import { resolveChannelApprovalCapability } from "./approvals.js";
+import type { ChannelPlugin } from "./types.plugin.js";
+
+export const NATIVE_APPROVAL_PROMPT_RUNTIME_CAPABILITY = "nativeApprovals";
+
+const NATIVE_APPROVAL_PROMPT_RUNTIME_CAPABILITY_NORMALIZED = "nativeapprovals";
+
+// Keep prompt construction lightweight. Full plugin loading is too expensive on
+// prompt-only import paths; plugin-backed checks still cover loaded native
+// channels at runtime.
+const KNOWN_NATIVE_APPROVAL_PROMPT_CHANNELS = new Set([
+  "discord",
+  "matrix",
+  "qqbot",
+  "slack",
+  "telegram",
+]);
+
+export function channelPluginHasNativeApprovalPromptUi(
+  plugin?: Pick<ChannelPlugin, "approvalCapability"> | null,
+): boolean {
+  const capability = resolveChannelApprovalCapability(plugin);
+  return Boolean(capability?.native || capability?.nativeRuntime);
+}
+
+export function isKnownNativeApprovalPromptChannel(channel?: string | null): boolean {
+  const normalized = normalizeOptionalLowercaseString(channel);
+  return Boolean(normalized && KNOWN_NATIVE_APPROVAL_PROMPT_CHANNELS.has(normalized));
+}
+
+export function hasNativeApprovalPromptRuntimeCapability(
+  capabilities?: readonly string[] | null,
+): boolean {
+  return Boolean(
+    capabilities?.some(
+      (capability) =>
+        normalizeOptionalLowercaseString(capability) ===
+        NATIVE_APPROVAL_PROMPT_RUNTIME_CAPABILITY_NORMALIZED,
+    ),
+  );
+}
diff --git a/src/config/channel-capabilities.ts b/src/config/channel-capabilities.ts
index b7edc354596..16938cc548e 100644
--- a/src/config/channel-capabilities.ts
+++ b/src/config/channel-capabilities.ts
@@ -1,4 +1,4 @@
-import { normalizeChannelId } from "../channels/plugins/index.js";
+import { normalizeAnyChannelId } from "../channels/registry.js";
 import { resolveAccountEntry } from "../routing/account-lookup.js";
 import { normalizeAccountId } from "../routing/session-key.js";
 import type { OpenClawConfig } from "./config.js";
@@ -49,7 +49,7 @@ export function resolveChannelCapabilities(params: {
   accountId?: string | null;
 }): string[] | undefined {
   const cfg = params.cfg;
-  const channel = normalizeChannelId(params.channel);
+  const channel = normalizeAnyChannelId(params.channel);
   if (!cfg || !channel) {
     return undefined;
   }