Added call functionality for 11labs by lchavasse · Pull Request #101 · StackOneHQ/mcp-connectors

lchavasse · 2025-08-28T18:57:48Z

Ever been stuck in hyper-focused coding in Cursor or ClaudeCode or your agent of choice? And been like: "Oh fuck! I'm supposed to be at the pub in five minutes but I've got to finish this! And you don't wanna break the flow and call your friends? Well now we have the solution!

Get elevenlabs to call them up for you and tell them all the things that would keep them occupied on the phone for the half an hour you're gonna be gone. Use your own voice clone, and it's even better. What could possibly go wrong?

Summary by cubic

Adds outbound call support to the ElevenLabs connector with tools to create agents, list phone numbers, and place calls. Also adds a local MCP dev server and test coverage for new and existing ElevenLabs features.

New Features
- ElevenLabs tools: create-agent, list-phone-numbers, make-phone-call (supports optional message; returns conversation_id and callSid).
- Updated example prompt to guide listing numbers, creating an agent, and calling a target number.
- Added scripts/start-server.ts to run any connector over an HTTP MCP endpoint for local testing.
- Added CLAUDE.md with repo overview, commands, and connector architecture.
- Added Vitest + MSW tests covering TTS, STT, voice listing, sound generation, agent creation, phone numbers, and phone calls.
Dependencies
- Added tsx as a dev dependency.

cubic-dev-ai

10 issues found across 6 files

_{React with 👍 or 👎 to teach cubic. You can also tag @cubic-dev-ai to give feedback, ask questions, or re-run the review.}

cubic-dev-ai · 2025-08-28T19:08:46Z

package.json

        "lint-staged": "^15.2.0",
        "msw": "^2.10.4",
        "tsdown": "^0.14.0",
+        "tsx": "^4.20.5",


Unused devDependency added: tsx is not referenced by any scripts or packages, adding unnecessary install weight and maintenance overhead.

Prompt for AI agents

Address the following comment on package.json at line 32: <comment>Unused devDependency added: tsx is not referenced by any scripts or packages, adding unnecessary install weight and maintenance overhead.</comment> <file context> @@ -29,6 +29,7 @@ "lint-staged": "^15.2.0", "msw": "^2.10.4", "tsdown": "^0.14.0", + "tsx": "^4.20.5", "turbo": "latest", "typescript": "^5.9.0", </file context>

@claude reverse this change

cubic-dev-ai · 2025-08-28T19:08:46Z

packages/mcp-connectors/src/connectors/elevenlabs.spec.ts

+        it("includes the additional context", async () => {
+          server.use(
+            http.post("https://api.elevenlabs.io/v1/convai/twilio/outbound-call", (req) => {
+              // Verify the request body includes additional_context


Test claims to verify inclusion of additional_context/message but never asserts the request body; add an assertion by reading req.json() and checking the field.

Prompt for AI agents

Address the following comment on packages/mcp-connectors/src/connectors/elevenlabs.spec.ts at line 428: <comment>Test claims to verify inclusion of additional_context/message but never asserts the request body; add an assertion by reading req.json() and checking the field.</comment> <file context> @@ -0,0 +1,654 @@ + it("includes the additional context", async () => { + server.use( + http.post("https://api.elevenlabs.io/v1/convai/twilio/outbound-call", (req) => { + // Verify the request body includes additional_context + return HttpResponse.json({ + success: true, </file context>

cubic-dev-ai · 2025-08-28T19:08:46Z

packages/mcp-connectors/src/connectors/elevenlabs.spec.ts

+import { http, HttpResponse } from "msw";
+import { setupServer } from "msw/node";
+
+const server = setupServer();


MSW server lifecycle is managed per-test without beforeAll/afterAll and no afterEach reset; handlers can accumulate and server may not close if a test fails, risking flaky tests.

Prompt for AI agents

Address the following comment on packages/mcp-connectors/src/connectors/elevenlabs.spec.ts at line 8: <comment>MSW server lifecycle is managed per-test without beforeAll/afterAll and no afterEach reset; handlers can accumulate and server may not close if a test fails, risking flaky tests.</comment> <file context> @@ -0,0 +1,654 @@ +import { http, HttpResponse } from "msw"; +import { setupServer } from "msw/node"; + +const server = setupServer(); + +describe("#ElevenLabsConnector", () => { </file context>

cubic-dev-ai · 2025-08-28T19:08:46Z

scripts/start-server.ts

+  const dataStore = new Map<string, unknown>();
+  const cacheStore = new Map<string, string>();
+
+  return {


Error responses from tool handlers should include isError: true so clients can reliably detect failures.

Prompt for AI agents

Address the following comment on scripts/start-server.ts at line 41: <comment>Error responses from tool handlers should include isError: true so clients can reliably detect failures.</comment> <file context> @@ -0,0 +1,364 @@ + const dataStore = new Map<string, unknown>(); + const cacheStore = new Map<string, string>(); + + return { + getCredentials: async () => credentials, + getSetup: async () => setup, </file context>

cubic-dev-ai · 2025-08-28T19:08:46Z

scripts/start-server.ts

+  });
+
+  for (const tool of Object.values(connectorConfig.tools)) {
+    server.tool(tool.name, tool.description, tool.schema.shape, async (args: unknown) => {


Accessing tool.schema.shape directly can be undefined for non-object Zod schemas; use a safe fallback to prevent runtime errors.

Prompt for AI agents

Address the following comment on scripts/start-server.ts at line 193: <comment>Accessing tool.schema.shape directly can be undefined for non-object Zod schemas; use a safe fallback to prevent runtime errors.</comment> <file context> @@ -0,0 +1,364 @@ + }); + + for (const tool of Object.values(connectorConfig.tools)) { + server.tool(tool.name, tool.description, tool.schema.shape, async (args: unknown) => { + const startTime = Date.now(); + customLogger(`Tool invoked: ${tool.name}`, 'info'); </file context>

cubic-dev-ai · 2025-08-28T19:08:46Z

packages/mcp-connectors/src/connectors/elevenlabs.ts

+              country_code: phone.country_code || phone.country,
+            })),
+            count: phoneNumbers.length,
+            raw_response: result,


Do not include the raw API response in returned data; it can expose sensitive information. Remove this field or gate it behind a debug flag.

Prompt for AI agents

Address the following comment on packages/mcp-connectors/src/connectors/elevenlabs.ts at line 703: <comment>Do not include the raw API response in returned data; it can expose sensitive information. Remove this field or gate it behind a debug flag.</comment> <file context> @@ -505,5 +556,239 @@ export const ElevenLabsConnectorConfig = mcpConnectorConfig({ + country_code: phone.country_code || phone.country, + })), + count: phoneNumbers.length, + raw_response: result, + message: + phoneNumbers.length > 0 </file context>

Suggested change

raw_response: result,

raw_response: undefined,

cubic-dev-ai · 2025-08-28T19:08:47Z

packages/mcp-connectors/src/connectors/elevenlabs.ts

+            phoneNumbers = result;
+          } else {
+            // Log the actual response structure for debugging
+            console.log('Unexpected API response structure:', JSON.stringify(result, null, 2));


Avoid logging full API responses; this may leak phone numbers or other sensitive data. Log a minimal message without payload or remove the log.

Prompt for AI agents

Address the following comment on packages/mcp-connectors/src/connectors/elevenlabs.ts at line 689: <comment>Avoid logging full API responses; this may leak phone numbers or other sensitive data. Log a minimal message without payload or remove the log.</comment> <file context> @@ -505,5 +556,239 @@ export const ElevenLabsConnectorConfig = mcpConnectorConfig({ + phoneNumbers = result; + } else { + // Log the actual response structure for debugging + console.log('Unexpected API response structure:', JSON.stringify(result, null, 2)); + } + </file context>

Suggested change

console.log('Unexpected API response structure:', JSON.stringify(result, null, 2));

console.warn('Unexpected API response structure');

cubic-dev-ai · 2025-08-28T19:08:47Z

CLAUDE.md

+
+# With credentials for production connectors
+bun start --connector asana --credentials '{"apiKey":"your-api-key"}'
+bun start --connector github --credentials '{"token":"ghp_xxx"}' --setup '{"org":"myorg"}'


CLI example doesn’t forward arguments past Turbo; use "--" so connector flags reach the server process.

Prompt for AI agents

Address the following comment on CLAUDE.md at line 23: <comment>CLI example doesn’t forward arguments past Turbo; use "--" so connector flags reach the server process.</comment> <file context> @@ -0,0 +1,90 @@ + +# With credentials for production connectors +bun start --connector asana --credentials '{"apiKey":"your-api-key"}' +bun start --connector github --credentials '{"token":"ghp_xxx"}' --setup '{"org":"myorg"}' +``` + </file context>

Suggested change

bun start --connector github --credentials '{"token":"ghp_xxx"}' --setup '{"org":"myorg"}'

bun run start -- --connector github --credentials '{"token":"ghp_xxx"}' --setup '{"org":"myorg"}'

cubic-dev-ai · 2025-08-28T19:08:47Z

CLAUDE.md

+bun start --connector test
+
+# With credentials for production connectors
+bun start --connector asana --credentials '{"apiKey":"your-api-key"}'


CLI example doesn’t forward arguments past Turbo; use "--" so connector flags reach the server process.

Prompt for AI agents

Address the following comment on CLAUDE.md at line 22: <comment>CLI example doesn’t forward arguments past Turbo; use "--" so connector flags reach the server process.</comment> <file context> @@ -0,0 +1,90 @@ +bun start --connector test + +# With credentials for production connectors +bun start --connector asana --credentials '{"apiKey":"your-api-key"}' +bun start --connector github --credentials '{"token":"ghp_xxx"}' --setup '{"org":"myorg"}' +``` </file context>

Suggested change

bun start --connector asana --credentials '{"apiKey":"your-api-key"}'

bun run start -- --connector asana --credentials '{"apiKey":"your-api-key"}'

cubic-dev-ai · 2025-08-28T19:08:47Z

CLAUDE.md

+### Start a connector server for testing
+```bash
+# No credentials needed (test connector)
+bun start --connector test


CLI example doesn’t forward arguments past Turbo; use "--" so connector flags reach the server process.

Prompt for AI agents

Address the following comment on CLAUDE.md at line 19: <comment>CLI example doesn’t forward arguments past Turbo; use "--" so connector flags reach the server process.</comment> <file context> @@ -0,0 +1,90 @@ +### Start a connector server for testing +```bash +# No credentials needed (test connector) +bun start --connector test + +# With credentials for production connectors </file context>

Suggested change

bun start --connector test

bun run start -- --connector test

lchavasse · 2025-08-30T17:28:35Z

should be all ready :)

claude · 2025-10-08T13:10:55Z

Claude encountered an error —— View job

Failed with exit code 128

I'll analyze this and get back to you.

glebedel · 2025-10-09T09:52:25Z

@claude review PR & make relevant updates based on best practices of creating connectors per .md guidelines

claude · 2025-10-09T09:52:43Z

Claude encountered an error —— View job

Failed with exit code 128

I'll analyze this and get back to you.

git rm scripts/start-server.tsAdded call functionality for 11labs

1021946

cubic-dev-ai bot reviewed Aug 28, 2025

View reviewed changes

Added and phone call capability for 11 labs connector.

eb54daa

lchavasse closed this Aug 30, 2025

lchavasse reopened this Aug 30, 2025

Merge branch 'main' into feat/elevenlabs-call-functionality

1a535fc

ryoppippi force-pushed the main branch from f07f288 to c260667 Compare November 12, 2025 13:56

ryoppippi force-pushed the main branch from f26b184 to 648dc7d Compare November 20, 2025 19:37

	console.log('Unexpected API response structure:', JSON.stringify(result, null, 2));
	console.warn('Unexpected API response structure');

	bun start --connector github --credentials '{"token":"ghp_xxx"}' --setup '{"org":"myorg"}'
	bun run start -- --connector github --credentials '{"token":"ghp_xxx"}' --setup '{"org":"myorg"}'

	bun start --connector asana --credentials '{"apiKey":"your-api-key"}'
	bun run start -- --connector asana --credentials '{"apiKey":"your-api-key"}'

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lchavasse commented Aug 28, 2025 •

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