diff --git a/src/agent-runner-environment.test.ts b/src/agent-runner-environment.test.ts
index f972a02..4e8557d 100644
--- a/src/agent-runner-environment.test.ts
+++ b/src/agent-runner-environment.test.ts
@@ -108,6 +108,15 @@ const group: RegisteredGroup = {
   agentType: 'codex',
 };
 
+function writeSkill(dir: string, name: string): void {
+  const skillDir = path.join(dir, name);
+  fs.mkdirSync(skillDir, { recursive: true });
+  fs.writeFileSync(
+    path.join(skillDir, 'SKILL.md'),
+    `---\nname: ${name}\ndescription: ${name} skill\n---\n`,
+  );
+}
+
 describe('prepareGroupEnvironment codex auth handling', () => {
   let tempRoot: string;
   let previousCwd: string;
@@ -370,6 +379,133 @@ describe('prepareGroupEnvironment codex auth handling', () => {
   });
 });
 
+describe('prepareGroupEnvironment room skill overrides', () => {
+  let tempRoot: string;
+  let previousCwd: string;
+
+  beforeEach(() => {
+    tempRoot = fs.mkdtempSync(path.join('/tmp', 'ejclaw-agent-skills-'));
+    previousCwd = process.cwd();
+    process.chdir(tempRoot);
+    process.env.EJ_TEST_ROOT = tempRoot;
+    process.env.EJ_TEST_HOME = path.join(tempRoot, 'home');
+    fs.mkdirSync(path.join(process.env.EJ_TEST_HOME, '.codex'), {
+      recursive: true,
+    });
+    mockReadEnvFile.mockReset();
+    mockGetActiveCodexAuthPath.mockReset();
+  });
+
+  afterEach(() => {
+    process.chdir(previousCwd);
+    delete process.env.EJ_TEST_ROOT;
+    delete process.env.EJ_TEST_HOME;
+    fs.rmSync(tempRoot, { recursive: true, force: true });
+  });
+
+  it('filters Claude session skills with room overrides at spawn time', () => {
+    mockReadEnvFile.mockReturnValue({});
+    const homeSkills = path.join(
+      process.env.EJ_TEST_HOME!,
+      '.claude',
+      'skills',
+    );
+    const workDir = path.join(tempRoot, 'workdir');
+    const runnerSkills = path.join(tempRoot, 'runners', 'skills');
+    writeSkill(homeSkills, 'claude-keep');
+    writeSkill(path.join(workDir, '.claude', 'skills'), 'workdir-keep');
+    writeSkill(runnerSkills, 'runner-keep');
+    writeSkill(runnerSkills, 'runner-off');
+
+    prepareGroupEnvironment(
+      { ...group, agentType: 'claude-code', workDir },
+      false,
+      'dc:test',
+      {
+        skillOverrides: [
+          {
+            chatJid: 'dc:test',
+            agentType: 'claude-code',
+            skillScope: 'runner',
+            skillName: 'runner-off',
+            enabled: false,
+            createdAt: '2026-05-04T00:00:00.000Z',
+            updatedAt: '2026-05-04T00:00:00.000Z',
+          },
+        ],
+      },
+    );
+
+    const sessionSkills = path.join(
+      tempRoot,
+      'sessions',
+      group.folder,
+      'services',
+      'codex-main',
+      '.claude',
+      'skills',
+    );
+    expect(fs.existsSync(path.join(sessionSkills, 'claude-keep'))).toBe(true);
+    expect(fs.existsSync(path.join(sessionSkills, 'workdir-keep'))).toBe(true);
+    expect(fs.existsSync(path.join(sessionSkills, 'runner-keep'))).toBe(true);
+    expect(fs.existsSync(path.join(sessionSkills, 'runner-off'))).toBe(false);
+  });
+
+  it('uses a session-scoped Codex home when room overrides disable skills', () => {
+    mockReadEnvFile.mockReturnValue({});
+    const codexSkills = path.join(
+      process.env.EJ_TEST_HOME!,
+      '.agents',
+      'skills',
+    );
+    const runnerSkills = path.join(tempRoot, 'runners', 'skills');
+    writeSkill(codexSkills, 'codex-keep');
+    writeSkill(codexSkills, 'codex-off');
+    writeSkill(runnerSkills, 'runner-keep');
+    writeSkill(runnerSkills, 'runner-off');
+
+    const prepared = prepareGroupEnvironment(group, false, 'dc:test', {
+      skillOverrides: [
+        {
+          chatJid: 'dc:test',
+          agentType: 'codex',
+          skillScope: 'codex-user',
+          skillName: 'codex-off',
+          enabled: false,
+          createdAt: '2026-05-04T00:00:00.000Z',
+          updatedAt: '2026-05-04T00:00:00.000Z',
+        },
+        {
+          chatJid: 'dc:test',
+          agentType: 'codex',
+          skillScope: 'runner',
+          skillName: 'runner-off',
+          enabled: false,
+          createdAt: '2026-05-04T00:00:00.000Z',
+          updatedAt: '2026-05-04T00:00:00.000Z',
+        },
+      ],
+    });
+
+    const sessionRoot = path.join(
+      tempRoot,
+      'sessions',
+      group.folder,
+      'services',
+      'codex-main',
+    );
+    const sessionHome = path.join(sessionRoot, 'home');
+    const sessionSkills = path.join(sessionHome, '.agents', 'skills');
+    expect(prepared.env.HOME).toBe(sessionHome);
+    expect(prepared.env.CODEX_HOME).toBe(path.join(sessionRoot, '.codex'));
+    expect(fs.existsSync(path.join(sessionSkills, 'codex-keep'))).toBe(true);
+    expect(fs.existsSync(path.join(sessionSkills, 'runner-keep'))).toBe(true);
+    expect(fs.existsSync(path.join(sessionSkills, 'codex-off'))).toBe(false);
+    expect(fs.existsSync(path.join(sessionSkills, 'runner-off'))).toBe(false);
+    expect(fs.existsSync(path.join(codexSkills, 'codex-off'))).toBe(true);
+  });
+});
+
 describe('prepareGroupEnvironment Codex goals handling', () => {
   let tempRoot: string;
   let previousCwd: string;
diff --git a/src/agent-runner-environment.ts b/src/agent-runner-environment.ts
index 433b62f..1d779be 100644
--- a/src/agent-runner-environment.ts
+++ b/src/agent-runner-environment.ts
@@ -33,6 +33,7 @@ import {
   hasReviewerLease,
 } from './service-routing.js';
 import type { AgentType, RegisteredGroup } from './types.js';
+import type { StoredRoomSkillOverride } from './db/rooms.js';
 
 // writeCodexApiKeyAuth removed — Codex uses OAuth only.
 // API key auth caused unintended billing.
@@ -53,6 +54,72 @@ function syncDirectoryEntries(sources: string[], destination: string): void {
   }
 }
 
+type SkillSyncScope = 'codex-user' | 'claude-user' | 'runner' | 'workdir';
+
+interface SkillSyncSource {
+  dir: string;
+  scope: SkillSyncScope;
+}
+
+function getDisabledSkillNamesByScope(
+  overrides: StoredRoomSkillOverride[] | undefined,
+  agentType: AgentType,
+): Map<SkillSyncScope, Set<string>> {
+  const disabled = new Map<SkillSyncScope, Set<string>>();
+  for (const override of overrides ?? []) {
+    if (override.agentType !== agentType || override.enabled !== false)
+      continue;
+    if (
+      override.skillScope !== 'codex-user' &&
+      override.skillScope !== 'claude-user' &&
+      override.skillScope !== 'runner'
+    ) {
+      continue;
+    }
+    const names = disabled.get(override.skillScope) ?? new Set<string>();
+    names.add(override.skillName);
+    disabled.set(override.skillScope, names);
+  }
+  return disabled;
+}
+
+function hasDisabledSkillOverrides(
+  overrides: StoredRoomSkillOverride[] | undefined,
+  agentType: AgentType,
+): boolean {
+  return (overrides ?? []).some(
+    (override) =>
+      override.agentType === agentType && override.enabled === false,
+  );
+}
+
+function syncRoomSkillDirectories(args: {
+  sources: SkillSyncSource[];
+  destination: string;
+  agentType: AgentType;
+  overrides?: StoredRoomSkillOverride[];
+}): void {
+  const disabledNamesByScope = getDisabledSkillNamesByScope(
+    args.overrides,
+    args.agentType,
+  );
+
+  fs.rmSync(args.destination, { recursive: true, force: true });
+  fs.mkdirSync(args.destination, { recursive: true });
+
+  for (const source of args.sources) {
+    if (!fs.existsSync(source.dir)) continue;
+    for (const entry of fs.readdirSync(source.dir, { withFileTypes: true })) {
+      if (!entry.isDirectory()) continue;
+      if (disabledNamesByScope.get(source.scope)?.has(entry.name)) continue;
+
+      const srcPath = path.join(source.dir, entry.name);
+      const dstPath = path.join(args.destination, entry.name);
+      fs.cpSync(srcPath, dstPath, { recursive: true });
+    }
+  }
+}
+
 function readOptionalPromptFile(
   projectRoot: string,
   filename: string,
@@ -301,6 +368,7 @@ function prepareCodexSessionEnvironment(args: {
   isPairedRoom: boolean;
   useFailoverPromptPack: boolean;
   memoryBriefing?: string;
+  skillOverrides?: StoredRoomSkillOverride[];
 }): void {
   // API key auth intentionally removed — Codex uses OAuth only.
   // Never pass any API key to Codex child process to prevent API billing.
@@ -385,15 +453,39 @@ function prepareCodexSessionEnvironment(args: {
 
   // Codex reads skills from ~/.agents/skills/ (user-level) and
   // {workDir}/.agents/skills/ (project-level), NOT from .codex/skills/.
-  // Sync to the user-level path so all Codex sessions can discover them.
-  const codexSkillsDir = path.join(os.homedir(), '.agents', 'skills');
-  syncDirectoryEntries(
-    [
-      path.join(os.homedir(), '.claude', 'skills'),
-      path.join(args.projectRoot, 'runners', 'skills'),
-    ],
-    codexSkillsDir,
-  );
+  if (hasDisabledSkillOverrides(args.skillOverrides, 'codex')) {
+    const sessionHomeDir = path.join(args.sessionRootDir, 'home');
+    args.env.HOME = sessionHomeDir;
+    syncRoomSkillDirectories({
+      sources: [
+        {
+          dir: path.join(os.homedir(), '.claude', 'skills'),
+          scope: 'codex-user',
+        },
+        {
+          dir: path.join(os.homedir(), '.agents', 'skills'),
+          scope: 'codex-user',
+        },
+        {
+          dir: path.join(args.projectRoot, 'runners', 'skills'),
+          scope: 'runner',
+        },
+      ],
+      destination: path.join(sessionHomeDir, '.agents', 'skills'),
+      agentType: 'codex',
+      overrides: args.skillOverrides,
+    });
+  } else {
+    // Preserve the historical global sync path when no room override exists.
+    const codexSkillsDir = path.join(os.homedir(), '.agents', 'skills');
+    syncDirectoryEntries(
+      [
+        path.join(os.homedir(), '.claude', 'skills'),
+        path.join(args.projectRoot, 'runners', 'skills'),
+      ],
+      codexSkillsDir,
+    );
+  }
 
   const mcpServerPath = path.join(
     args.projectRoot,
@@ -411,7 +503,7 @@ function prepareCodexSessionEnvironment(args: {
       chatJid: args.chatJid,
       groupFolder: args.group.folder,
       isMain: args.isMain,
-      agentType: args.group.agentType || 'claude-code',
+      agentType: 'codex',
       workDir:
         args.env.EJCLAW_WORK_DIR || args.group.workDir || args.projectRoot,
     });
@@ -430,6 +522,10 @@ export interface PreparedGroupEnvironment {
   runnerDir: string;
 }
 
+export interface PreparedReadonlySessionEnvironment {
+  codexHomeDir?: string;
+}
+
 export function prepareGroupEnvironment(
   group: RegisteredGroup,
   isMain: boolean,
@@ -438,6 +534,7 @@ export function prepareGroupEnvironment(
     memoryBriefing?: string;
     runtimeTaskId?: string;
     useTaskScopedSession?: boolean;
+    skillOverrides?: StoredRoomSkillOverride[];
   },
 ): PreparedGroupEnvironment {
   const projectRoot = process.cwd();
@@ -463,12 +560,26 @@ export function prepareGroupEnvironment(
   const workDirClaude = group.workDir
     ? path.join(group.workDir, '.claude')
     : null;
-  const skillSources = [
-    path.join(os.homedir(), '.claude', 'skills'),
-    ...(workDirClaude ? [path.join(workDirClaude, 'skills')] : []),
-    path.join(projectRoot, 'runners', 'skills'),
-  ];
-  syncDirectoryEntries(skillSources, path.join(groupSessionsDir, 'skills'));
+  syncRoomSkillDirectories({
+    sources: [
+      {
+        dir: path.join(os.homedir(), '.claude', 'skills'),
+        scope: 'claude-user',
+      },
+      ...(workDirClaude
+        ? [
+            {
+              dir: path.join(workDirClaude, 'skills'),
+              scope: 'workdir' as const,
+            },
+          ]
+        : []),
+      { dir: path.join(projectRoot, 'runners', 'skills'), scope: 'runner' },
+    ],
+    destination: path.join(groupSessionsDir, 'skills'),
+    agentType: 'claude-code',
+    overrides: options?.skillOverrides,
+  });
 
   const groupIpcDir = runtimeTaskId
     ? resolveTaskRuntimeIpcPath(group.folder, runtimeTaskId)
@@ -566,6 +677,7 @@ export function prepareGroupEnvironment(
       isPairedRoom,
       useFailoverPromptPack: useCodexReviewFailoverPromptPack,
       memoryBriefing: options?.memoryBriefing,
+      skillOverrides: options?.skillOverrides,
     });
   } else {
     prepareClaudeEnvironment({ env, envVars, group });
@@ -594,7 +706,8 @@ export function prepareReadonlySessionEnvironment(args: {
   ipcDir?: string;
   hostIpcDir?: string;
   workDir?: string;
-}): void {
+  skillOverrides?: StoredRoomSkillOverride[];
+}): PreparedReadonlySessionEnvironment {
   const {
     sessionDir,
     chatJid,
@@ -606,6 +719,7 @@ export function prepareReadonlySessionEnvironment(args: {
     ipcDir = '/workspace/ipc',
     hostIpcDir = ipcDir,
     workDir = '/workspace/project',
+    skillOverrides,
   } = args;
   const projectRoot = process.cwd();
 
@@ -614,11 +728,40 @@ export function prepareReadonlySessionEnvironment(args: {
   ensureClaudeGlobalSettingsFile(sessionDir);
 
   // Sync skills from host
-  const skillSources = [
-    path.join(os.homedir(), '.claude', 'skills'),
-    path.join(projectRoot, 'runners', 'skills'),
-  ];
-  syncDirectoryEntries(skillSources, path.join(sessionDir, 'skills'));
+  syncRoomSkillDirectories({
+    sources: [
+      {
+        dir: path.join(os.homedir(), '.claude', 'skills'),
+        scope: agentType === 'codex' ? 'codex-user' : 'claude-user',
+      },
+      { dir: path.join(projectRoot, 'runners', 'skills'), scope: 'runner' },
+    ],
+    destination: path.join(sessionDir, 'skills'),
+    agentType,
+    overrides: skillOverrides,
+  });
+  const codexHomeDir =
+    agentType === 'codex' && hasDisabledSkillOverrides(skillOverrides, 'codex')
+      ? sessionDir
+      : undefined;
+  if (codexHomeDir) {
+    syncRoomSkillDirectories({
+      sources: [
+        {
+          dir: path.join(os.homedir(), '.claude', 'skills'),
+          scope: 'codex-user',
+        },
+        {
+          dir: path.join(os.homedir(), '.agents', 'skills'),
+          scope: 'codex-user',
+        },
+        { dir: path.join(projectRoot, 'runners', 'skills'), scope: 'runner' },
+      ],
+      destination: path.join(codexHomeDir, '.agents', 'skills'),
+      agentType,
+      overrides: skillOverrides,
+    });
+  }
 
   // Build CLAUDE.md with role-appropriate prompts (reviewer or arbiter)
   const claudePlatformPrompt = readPlatformPrompt('claude-code', projectRoot);
@@ -688,4 +831,5 @@ export function prepareReadonlySessionEnvironment(args: {
   } else if (fs.existsSync(sessionClaudeMdPath)) {
     fs.unlinkSync(sessionClaudeMdPath);
   }
+  return { codexHomeDir };
 }
diff --git a/src/agent-runner.test.ts b/src/agent-runner.test.ts
index 962c85e..8428462 100644
--- a/src/agent-runner.test.ts
+++ b/src/agent-runner.test.ts
@@ -71,6 +71,10 @@ vi.mock('./service-routing.js', () => ({
   hasReviewerLease: vi.fn(() => true),
 }));
 
+vi.mock('./db.js', () => ({
+  getStoredRoomSkillOverrides: vi.fn(() => []),
+}));
+
 // Create a controllable fake ChildProcess
 function createFakeProcess() {
   const proc = new EventEmitter() as EventEmitter & {
@@ -108,6 +112,7 @@ vi.mock('child_process', async () => {
 
 import { runAgentProcess, AgentOutput } from './agent-runner.js';
 import * as agentRunnerEnvironment from './agent-runner-environment.js';
+import { getStoredRoomSkillOverrides } from './db.js';
 import type { RegisteredGroup } from './types.js';
 
 const testGroup: RegisteredGroup = {
@@ -681,10 +686,61 @@ OUROBOROS_LLM_BACKEND = "codex"
   });
 });
 
+describe('agent-runner room skill overrides', () => {
+  beforeEach(() => {
+    vi.useRealTimers();
+    vi.clearAllMocks();
+    vi.mocked(getStoredRoomSkillOverrides).mockReturnValue([]);
+    fakeProc = createFakeProcess();
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+  });
+
+  it('passes room skill overrides into runner environment setup', async () => {
+    const skillOverride = {
+      chatJid: testInput.chatJid,
+      agentType: 'claude-code' as const,
+      skillScope: 'runner',
+      skillName: 'runner-off',
+      enabled: false,
+      createdAt: '2026-05-04T00:00:00.000Z',
+      updatedAt: '2026-05-04T00:00:00.000Z',
+    };
+    vi.mocked(getStoredRoomSkillOverrides).mockReturnValue([skillOverride]);
+    const prepareGroupEnvironmentSpy = vi.spyOn(
+      agentRunnerEnvironment,
+      'prepareGroupEnvironment',
+    );
+
+    const resultPromise = runAgentProcess(
+      testGroup,
+      testInput,
+      () => {},
+      async () => {},
+    );
+
+    fakeProc.emit('close', 0);
+    const result = await resultPromise;
+    expect(result.status).toBe('success');
+    expect(getStoredRoomSkillOverrides).toHaveBeenCalledWith(testInput.chatJid);
+    expect(prepareGroupEnvironmentSpy).toHaveBeenCalledWith(
+      testGroup,
+      testInput.isMain,
+      testInput.chatJid,
+      expect.objectContaining({
+        skillOverrides: [skillOverride],
+      }),
+    );
+  });
+});
+
 describe('agent-runner Codex goals', () => {
   beforeEach(() => {
     vi.useRealTimers();
     vi.clearAllMocks();
+    vi.mocked(getStoredRoomSkillOverrides).mockReturnValue([]);
     fakeProc = createFakeProcess();
     vi.mocked(fs.existsSync).mockImplementation((p: fs.PathLike) => {
       const str = String(p);
diff --git a/src/agent-runner.ts b/src/agent-runner.ts
index e64c239..f1b9a84 100644
--- a/src/agent-runner.ts
+++ b/src/agent-runner.ts
@@ -13,6 +13,7 @@ import {
   prepareGroupEnvironment,
 } from './agent-runner-environment.js';
 import { runSpawnedAgentProcess } from './agent-runner-process.js';
+import { getStoredRoomSkillOverrides } from './db.js';
 export {
   type AvailableGroup,
   writeGroupsSnapshot,
@@ -20,6 +21,7 @@ export {
 } from './agent-runner-snapshot.js';
 import { logger } from './logger.js';
 import { RegisteredGroup, RoomRoleContext } from './types.js';
+import type { StoredRoomSkillOverride } from './db/rooms.js';
 
 export interface AgentInput {
   prompt: string;
@@ -50,6 +52,23 @@ export interface AgentOutput {
   error?: string;
 }
 
+function readRoomSkillOverridesForRunner(
+  chatJid: string,
+): StoredRoomSkillOverride[] {
+  try {
+    return getStoredRoomSkillOverrides(chatJid);
+  } catch (err) {
+    logger.warn(
+      {
+        err,
+        chatJid,
+      },
+      'Failed to read room skill overrides; falling back to default skills',
+    );
+    return [];
+  }
+}
+
 export async function runAgentProcess(
   group: RegisteredGroup,
   input: AgentInput,
@@ -65,6 +84,7 @@ export async function runAgentProcess(
 
   // ── Host process mode (owner) ───────────────────────────────────
   const startTime = Date.now();
+  const skillOverrides = readRoomSkillOverridesForRunner(input.chatJid);
   const { env, groupDir, runnerDir } = prepareGroupEnvironment(
     group,
     input.isMain,
@@ -73,6 +93,7 @@ export async function runAgentProcess(
       memoryBriefing: input.memoryBriefing,
       runtimeTaskId: input.runtimeTaskId,
       useTaskScopedSession: input.useTaskScopedSession,
+      skillOverrides,
     },
   );
 
@@ -88,7 +109,7 @@ export async function runAgentProcess(
     (input.roomRoleContext?.role === 'reviewer' ||
       input.roomRoleContext?.role === 'arbiter')
   ) {
-    prepareReadonlySessionEnvironment({
+    const readonlySession = prepareReadonlySessionEnvironment({
       sessionDir: envOverrides.CLAUDE_CONFIG_DIR,
       chatJid: input.chatJid,
       isMain: input.isMain,
@@ -99,9 +120,13 @@ export async function runAgentProcess(
       ipcDir: env.EJCLAW_IPC_DIR,
       hostIpcDir: env.EJCLAW_HOST_IPC_DIR,
       workDir: envOverrides.EJCLAW_WORK_DIR || env.EJCLAW_WORK_DIR,
+      skillOverrides,
     });
     if ((group.agentType || 'claude-code') === 'codex') {
       env.CODEX_HOME = path.join(envOverrides.CLAUDE_CONFIG_DIR, '.codex');
+      if (readonlySession.codexHomeDir) {
+        env.HOME = readonlySession.codexHomeDir;
+      }
     }
   }
   if (input.runId) {