diff --git a/packages/experimental/claude-code-mods/src/host-ops.ts b/packages/experimental/claude-code-mods/src/host-ops.ts
index 01f451e52d..c4ee68d1bc 100644
--- a/packages/experimental/claude-code-mods/src/host-ops.ts
+++ b/packages/experimental/claude-code-mods/src/host-ops.ts
@@ -293,9 +293,9 @@ export function createHostOps(options: HostOpsOptions): OpTable<AgentBinding> {
         description,
         parameters: inputSchema,
         output: {
-          // The answering hook's result text.
+          // The answering hook's result text; the schema admits only a string.
           schema: { type: 'string' },
-          render: (_args, value) => [{ type: 'text', text: String(value) }],
+          render: (_args, value) => [{ type: 'text', text: value as string }],
         },
         execute() {
           return Promise.reject(new Error(`${mod.name} registered ${fullName} but no tool.call hook answered it; add on('tool.call', { tool: '${fullName}' }, hook)`))
diff --git a/packages/experimental/claude-code-mods/tests/host-ops.spec.ts b/packages/experimental/claude-code-mods/tests/host-ops.spec.ts
index 1ee2e1bdce..cf9857db46 100644
--- a/packages/experimental/claude-code-mods/tests/host-ops.spec.ts
+++ b/packages/experimental/claude-code-mods/tests/host-ops.spec.ts
@@ -178,6 +178,8 @@ describe('processes through the subprocess seam', () => {
     expect(run.stdout.endsWith('|set')).toBe(true)
     const viaAgent = await call('process.run', { argv: ['node', '-e', 'process.stdout.write(process.cwd())'] }, fakeAgent(ctx, { cwd })) as { stdout: string }
     expect(viaAgent.stdout.length).toBeGreaterThan(0)
+    const bare = await call('process.run', { argv: ['node', '-e', 'process.stdout.write(process.cwd())'] }) as { exitCode: number; stdout: string }
+    expect(bare).toEqual({ exitCode: 0, stdout: process.cwd(), stderr: '' })
     // A Windows child that kills itself still reports an exit code, so the signal branch is POSIX evidence.
     if (process.platform !== 'win32') {
       await expect(call('process.run', { argv: ['node', '-e', 'process.kill(process.pid, "SIGKILL")'] })).rejects.toThrow(/was terminated by signal SIGKILL/)
diff --git a/packages/experimental/claude-code-mods/tests/module.spec.ts b/packages/experimental/claude-code-mods/tests/module.spec.ts
index c66388fa6d..7f717343d5 100644
--- a/packages/experimental/claude-code-mods/tests/module.spec.ts
+++ b/packages/experimental/claude-code-mods/tests/module.spec.ts
@@ -35,7 +35,8 @@ describe('createOn', () => {
     expect(() => on('session.start', { cwd: '/x' }, noop)).not.toThrow()
     expect(() => loose('turn.start', 'nope')).toThrow(/needs a hook function/)
     expect(() => loose('turn.start', 'nope', noop)).toThrow(/matcher must be an object/)
-    const attach = on('turn.complete', noop).catch as (handler: unknown) => void
+    const registration = on('turn.complete', noop)
+    const attach = registration.catch.bind(registration) as (handler: unknown) => void
     expect(() => { attach('nope') }).toThrow(/needs a handler function/)
   })
 })
diff --git a/scripts/release/families.spec.ts b/scripts/release/families.spec.ts
index 0cbba9d3c8..52704e8655 100644
--- a/scripts/release/families.spec.ts
+++ b/scripts/release/families.spec.ts
@@ -56,6 +56,7 @@ describe('release families', () => {
       '@deepseek-ai/dsh-experimental-browser-use-playwright-mcp',
       '@deepseek-ai/dsh-experimental-browser-use-runtime',
       '@deepseek-ai/dsh-experimental-browser-use-stagehand-native',
+      '@deepseek-ai/dsh-experimental-claude-code-mods',
       '@deepseek-ai/dsh-experimental-client-ui-agent-team',
       '@deepseek-ai/dsh-experimental-client-ui-voice-input',
       '@deepseek-ai/dsh-experimental-computer-use-cua-driver-mcp',