diff --git a/src/__tests__/runtime-guidance-plan-ralph.test.ts b/src/__tests__/runtime-guidance-plan-ralph.test.ts
index 5c254c3ea9..d4b4567da9 100644
--- a/src/__tests__/runtime-guidance-plan-ralph.test.ts
+++ b/src/__tests__/runtime-guidance-plan-ralph.test.ts
@@ -1,13 +1,15 @@
 import { beforeEach, describe, expect, it, vi } from 'vitest';
+import type { CliAgentType } from '../team/model-contract.js';
 
 const availability = vi.hoisted(() => ({
   claude: true,
   codex: false,
   gemini: false,
+  cursor: false,
 }));
 
 vi.mock('../team/model-contract.js', () => ({
-  isCliAvailable: (agentType: 'claude' | 'codex' | 'gemini') => availability[agentType],
+  isCliAvailable: (agentType: CliAgentType) => availability[agentType],
 }));
 
 import {
@@ -20,6 +22,7 @@ describe('runtime-guidance: ralplan/plan/ralph Codex availability', () => {
     availability.claude = true;
     availability.codex = false;
     availability.gemini = false;
+    availability.cursor = false;
   });
 
   describe('renderSkillRuntimeGuidance for plan-family skills', () => {
@@ -75,7 +78,7 @@ describe('runtime-guidance: ralplan/plan/ralph Codex availability', () => {
 
   describe('detectSkillRuntimeAvailability safety', () => {
     it('returns false for a provider whose detector throws instead of crashing', () => {
-      const throwingDetector = (agentType: 'claude' | 'codex' | 'gemini') => {
+      const throwingDetector = (agentType: CliAgentType) => {
         if (agentType === 'codex') {
           throw new Error(
             'External LLM provider "codex" is blocked by security policy (disableExternalLLM).',
diff --git a/src/cli/team.ts b/src/cli/team.ts
index def0629199..f3054701a0 100644
--- a/src/cli/team.ts
+++ b/src/cli/team.ts
@@ -14,7 +14,7 @@ import { isProcessAlive } from '../platform/index.js';
 import { getGlobalOmcStatePath } from '../utils/paths.js';
 
 const JOB_ID_PATTERN = /^omc-[a-z0-9]{1,16}$/;
-const VALID_CLI_AGENT_TYPES = new Set(['claude', 'codex', 'gemini']);
+const VALID_CLI_AGENT_TYPES = new Set(['claude', 'codex', 'gemini', 'cursor']);
 const SUBCOMMANDS = new Set(['start', 'status', 'wait', 'cleanup', 'resume', 'shutdown', 'api', 'help', '--help', '-h']);
 
 const SUPPORTED_API_OPERATIONS = new Set([
@@ -685,7 +685,7 @@ export async function teamCleanupCommand(
 
 export const TEAM_USAGE = `
 Usage:
-  omc team start --agent <claude|codex|gemini>[,<agent>...] --task "<task>" [--count N] [--name TEAM] [--cwd DIR] [--new-window] [--json]
+  omc team start --agent <claude|codex|gemini|cursor>[,<agent>...] --task "<task>" [--count N] [--name TEAM] [--cwd DIR] [--new-window] [--json]
   omc team status <job_id|team_name> [--json] [--cwd DIR]
   omc team wait <job_id> [--timeout-ms MS] [--json]
   omc team cleanup <job_id> [--grace-ms MS] [--json]
diff --git a/src/team/capabilities.ts b/src/team/capabilities.ts
index 892b53afc7..d0bfbd541c 100644
--- a/src/team/capabilities.ts
+++ b/src/team/capabilities.ts
@@ -18,6 +18,7 @@ const DEFAULT_CAPABILITIES: Record<WorkerBackend, WorkerCapability[]> = {
   'tmux-claude': ['code-edit', 'testing', 'general'],
   'tmux-codex': ['code-review', 'security-review', 'architecture', 'refactoring'],
   'tmux-gemini': ['ui-design', 'documentation', 'research', 'code-edit'],
+  'tmux-cursor': ['code-edit', 'refactoring', 'general'],
 };
 
 /**
diff --git a/src/team/cli-detection.ts b/src/team/cli-detection.ts
index a7f6f4122f..e4a21107e6 100644
--- a/src/team/cli-detection.ts
+++ b/src/team/cli-detection.ts
@@ -35,5 +35,6 @@ export function detectAllClis(): Record<string, CliInfo> {
     claude: detectCli('claude'),
     codex: detectCli('codex'),
     gemini: detectCli('gemini'),
+    cursor: detectCli('cursor-agent'),
   };
 }
diff --git a/src/team/cli-worker-contract.ts b/src/team/cli-worker-contract.ts
index d76eade8dc..dac44a8bfd 100644
--- a/src/team/cli-worker-contract.ts
+++ b/src/team/cli-worker-contract.ts
@@ -57,7 +57,14 @@ export function shouldInjectContract(
   provider: CliAgentType | null | undefined,
 ): boolean {
   if (!role || !provider) return false;
-  if (provider === 'claude') return false;
+  // Claude workers speak through the team messaging API directly.
+  // Cursor workers run as interactive REPLs — they cannot perform the
+  // write-verdict-and-exit dance the contract requires, so reviewer
+  // roles must not be assigned to cursor in the first place. The
+  // role-router and worker-bootstrap guidance both flag this; here we
+  // simply skip contract injection if a cursor worker somehow lands on
+  // a CONTRACT_ROLES role rather than emit instructions it cannot follow.
+  if (provider === 'claude' || provider === 'cursor') return false;
   return CONTRACT_ROLES.has(role);
 }
 
diff --git a/src/team/model-contract.ts b/src/team/model-contract.ts
index f8324dd837..7a88c3d697 100644
--- a/src/team/model-contract.ts
+++ b/src/team/model-contract.ts
@@ -5,7 +5,7 @@ import { normalizeToCcAlias } from '../features/delegation-enforcer.js';
 import { isBedrock, isVertexAI, isProviderSpecificModelId } from '../config/models.js';
 import { isExternalLLMDisabled } from '../lib/security-config.js';
 
-export type CliAgentType = 'claude' | 'codex' | 'gemini';
+export type CliAgentType = 'claude' | 'codex' | 'gemini' | 'cursor';
 
 export interface CliAgentContract {
   agentType: CliAgentType;
@@ -224,6 +224,24 @@ const CONTRACTS: Record<CliAgentType, CliAgentContract> = {
       return rawOutput.trim();
     },
   },
+  cursor: {
+    agentType: 'cursor',
+    binary: 'cursor-agent',
+    installInstructions: 'Install Cursor Agent CLI: see https://docs.cursor.com/cli',
+    // cursor-agent runs as an interactive REPL — no exit-on-complete prompt mode.
+    // Keep supportsPromptMode false so the verdict-file contract path
+    // (CONTRACT_ROLES + shouldInjectContract) skips this provider; cursor
+    // workers participate as executors only.
+    supportsPromptMode: false,
+    buildLaunchArgs(_model?: string, extraFlags: string[] = []): string[] {
+      // Minimal flags — cursor-agent owns its own session/auth state.
+      // The model is selected interactively inside cursor-agent itself.
+      return [...extraFlags];
+    },
+    parseOutput(rawOutput: string): string {
+      return rawOutput.trim();
+    },
+  },
 };
 
 export function getContract(agentType: CliAgentType): CliAgentContract {
diff --git a/src/team/types.ts b/src/team/types.ts
index a5eb8719f5..319d418f81 100644
--- a/src/team/types.ts
+++ b/src/team/types.ts
@@ -138,7 +138,7 @@ export interface TaskFailureSidecar {
 }
 
 /** Worker backend type */
-export type WorkerBackend = 'claude-native' | 'mcp-codex' | 'mcp-gemini' | 'tmux-claude' | 'tmux-codex' | 'tmux-gemini';
+export type WorkerBackend = 'claude-native' | 'mcp-codex' | 'mcp-gemini' | 'tmux-claude' | 'tmux-codex' | 'tmux-gemini' | 'tmux-cursor';
 
 /** Worker capability tag */
 export type WorkerCapability =
@@ -253,7 +253,7 @@ export interface WorkerInfo {
   name: string;
   index: number;
   role: string;
-  worker_cli?: 'codex' | 'claude' | 'gemini';
+  worker_cli?: 'codex' | 'claude' | 'gemini' | 'cursor';
   assigned_tasks: string[];
   pid?: number;
   pane_id?: string;
diff --git a/src/team/worker-bootstrap.ts b/src/team/worker-bootstrap.ts
index a49b48e5ba..7695c7541d 100644
--- a/src/team/worker-bootstrap.ts
+++ b/src/team/worker-bootstrap.ts
@@ -73,6 +73,13 @@ function agentTypeGuidance(agentType: CliAgentType): string {
         '- Keep commit-sized changes scoped to assigned files only; no broad refactors.',
         `- CRITICAL: You MUST run \`${claimTaskCommand}\` before starting work and \`${transitionTaskStatusCommand}\` when done. Do not exit without transitioning the task status.`,
       ].join('\n');
+    case 'cursor':
+      return [
+        '### Agent-Type Guidance (cursor)',
+        '- You are an interactive REPL (cursor-agent), not a one-shot CLI. Stay in the session; the leader will continue to send prompts via mailbox.',
+        `- You MUST run \`${claimTaskCommand}\` before starting work and \`${transitionTaskStatusCommand}\` when done. Then keep waiting for the next mailbox message; do NOT type \`/exit\` unless the leader sends an explicit shutdown.`,
+        '- Reviewer/critic/security-review roles are NOT supported for cursor workers — those require a verdict-file write-and-exit which the REPL does not perform. Take only executor-style tasks.',
+      ].join('\n');
     case 'claude':
     default:
       return [