diff --git a/AgentCompany-New/src/main/services/chat-service.ts b/AgentCompany-New/src/main/services/chat-service.ts
index 2a7d0822..8c6a9efd 100644
--- a/AgentCompany-New/src/main/services/chat-service.ts
+++ b/AgentCompany-New/src/main/services/chat-service.ts
@@ -1,6 +1,7 @@
 import type { DatabaseSync } from "node:sqlite";
 import type { CreateChatSpaceInput, DeleteMessageInput, EditMessageInput, MarkChatSpaceReadInput, SendMessageInput } from "../../shared/commands";
 import {
+  APPROVAL_STATE,
   CHAT_THREAD_BOARD_STATE,
   FILE_SCAN_STATE,
   RISK_LEVEL,
@@ -230,6 +231,9 @@ export class ChatService {
         now,
       });
     }
+    if (slash.command === "approve" || slash.command === "deny") {
+      return this.decideApprovalFromSlash(input, sender, slash);
+    }
     if (slash.command !== "escalate") return null;
     const requester = approvalRequester(input.senderType, sender);
     return this.approvals.create({
@@ -243,6 +247,18 @@ export class ChatService {
     }, { sourceMessageId: messageId, sourceThreadId: threadId, sourceEntityType: "chat_message", sourceEntityId: messageId });
   }
 
+  private decideApprovalFromSlash(input: SendMessageInput, sender: PrincipalRef | null, slash: SlashInvocation): string {
+    if (!sender || sender.type !== "employee") throw new Error("Approval decision requires employee sender.");
+    const approvalId = parseApprovalDecisionTarget(slash);
+    this.approvals.decide({
+      orgId: input.orgId,
+      approvalId,
+      state: slash.command === "approve" ? APPROVAL_STATE.APPROVED : APPROVAL_STATE.DECLINED,
+      decidedByEmployeeId: sender.id,
+    });
+    return approvalId;
+  }
+
   private recordSlashInvocation(messageId: string, slash: SlashInvocation, resultRef: string | null, now: string): void {
     this.db.prepare(`
       insert into chat_slash_invocations(id, message_id, command, args_json, result_ref, created_at)
@@ -408,9 +424,16 @@ function validateSlashInvocation(slash: SlashInvocation): void {
   if (slash.command === "escalate" && slash.args.trim().length === 0) {
     throw new Error("Slash command /escalate requires details.");
   }
+  if (slash.command === "approve" || slash.command === "deny") parseApprovalDecisionTarget(slash);
   if (slash.command === "board") parseBoardCommand(slash.args);
 }
 
+function parseApprovalDecisionTarget(slash: SlashInvocation): string {
+  const approvalId = slash.args.trim().split(/\s+/, 1)[0] ?? "";
+  if (!approvalId) throw new Error(`Slash command /${slash.command} requires an approval id.`);
+  return approvalId;
+}
+
 function approvalRequester(senderType: SendMessageInput["senderType"], sender: PrincipalRef | null): ApprovalRequester {
   if (senderType === "system") return { type: "system", id: null };
   if (!sender) throw new Error("Approval requester is missing.");
diff --git a/AgentCompany-New/tests/unit/chat-governance.test.ts b/AgentCompany-New/tests/unit/chat-governance.test.ts
index 1edf58b7..ff1dbc3e 100644
--- a/AgentCompany-New/tests/unit/chat-governance.test.ts
+++ b/AgentCompany-New/tests/unit/chat-governance.test.ts
@@ -3,9 +3,11 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { describe, expect, test } from "vitest";
 import { DatabaseConnection } from "../../src/main/database/connection";
+import { ApprovalService } from "../../src/main/services/approval-service";
 import { ChatService } from "../../src/main/services/chat-service";
 import { OrganizationService } from "../../src/main/services/organization-service";
 import { SnapshotService } from "../../src/main/services/snapshot-service";
+import { RISK_LEVEL } from "../../src/shared/domain";
 
 function createConnection(): DatabaseConnection {
   return new DatabaseConnection(join(tmpdir(), `agentcompany-new-chat-${randomUUID()}.db`));
@@ -140,6 +142,79 @@ describe("chat governance", () => {
     connection.close();
   });
 
+  test("decides approvals from chat slash commands", () => {
+    const connection = createConnection();
+    const organization = new OrganizationService(connection.db);
+    const approvals = new ApprovalService(connection.db);
+    const chat = new ChatService(connection.db);
+    const snapshot = new SnapshotService(connection.db);
+    let orgId = "";
+    let employeeId = "";
+    let spaceId = "";
+    let approvalId = "";
+    let declinedApprovalId = "";
+
+    connection.transaction(() => {
+      orgId = organization.createOrganization({
+        organizationName: "Acme Operations",
+        employeeName: "Dana Lee",
+        mission: "Coordinate agents with auditable approvals.",
+        goal: "Ship a verified control plane.",
+      });
+      employeeId = (connection.db.prepare("select id from employees where org_id = ?").get(orgId) as { id: string }).id;
+      spaceId = chat.createSpace({ orgId, spaceType: "project", name: "release", topic: "Release coordination", visibility: "workspace" });
+      approvalId = approvals.create({
+        orgId,
+        kind: "release_gate",
+        title: "Release gate",
+        details: "Review the release window.",
+        risk: RISK_LEVEL.HIGH,
+        requestedByType: "employee",
+        requestedById: employeeId,
+      });
+      declinedApprovalId = approvals.create({
+        orgId,
+        kind: "release_gate",
+        title: "Rollback gate",
+        details: "Review rollback window.",
+        risk: RISK_LEVEL.HIGH,
+        requestedByType: "employee",
+        requestedById: employeeId,
+      });
+      chat.sendMessage({
+        orgId,
+        spaceId,
+        threadId: null,
+        senderType: "employee",
+        senderId: employeeId,
+        bodyMd: `/approve ${approvalId} release window cleared`,
+        attachmentFileIds: [],
+      });
+      chat.sendMessage({
+        orgId,
+        spaceId,
+        threadId: null,
+        senderType: "employee",
+        senderId: employeeId,
+        bodyMd: `/deny ${declinedApprovalId} rollback window blocked`,
+        attachmentFileIds: [],
+      });
+    });
+
+    const state = snapshot.load();
+    expect(state.approvals.find((item) => item.id === approvalId)?.state).toBe("approved");
+    expect(state.approvals.find((item) => item.id === declinedApprovalId)?.state).toBe("declined");
+    expect(state.chatSlashInvocations).toEqual(expect.arrayContaining([
+      expect.objectContaining({ command: "approve", resultRef: approvalId }),
+      expect.objectContaining({ command: "deny", resultRef: declinedApprovalId }),
+    ]));
+    expect(state.auditEvents).toEqual(expect.arrayContaining([
+      expect.objectContaining({ entityType: "approval", entityId: approvalId, action: "approved" }),
+      expect.objectContaining({ entityType: "approval", entityId: declinedApprovalId, action: "declined" }),
+    ]));
+    connection.close();
+  });
+
   test("records board interventions and enforces thread control", () => {
     const connection = createConnection();
     const organization = new OrganizationService(connection.db);
@@ -357,6 +432,15 @@ describe("chat governance", () => {
       bodyMd: "/escalate",
       attachmentFileIds: [],
     }))).toThrow("Slash command /escalate requires details.");
+    expect(() => connection.transaction(() => chat.sendMessage({
+      orgId,
+      spaceId: workspaceSpaceId,
+      threadId: null,
+      senderType: "employee",
+      senderId: employeeId,
+      bodyMd: "/approve",
+      attachmentFileIds: [],
+    }))).toThrow("Slash command /approve requires an approval id.");
     expect(() => connection.transaction(() => chat.sendMessage({
       orgId,
       spaceId: workspaceSpaceId,