> ## Documentation Index
> Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Beta Limitations

The Agent Control Plane is in beta. This page lists what the current release does not do yet, or does with a constraint. Each line links to the page that explains it.

| Area | Limitation | Details |
| - | - | - |
| Releases | `@telnyx/acp` is a pre-release on npm, and a release can change documented behavior. | [Deploy and Operate](/docs/agents/deploy-and-operate#beta-limitations) |
| Control plane | There is no control plane API yet, so `telnyx-acp list` is not available. | [Deploy and Operate](/docs/agents/deploy-and-operate#beta-limitations) |
| Environments | One project has one address, with no staging slot or traffic split. | [Deploy and Operate](/docs/agents/deploy-and-operate#beta-limitations) |
| Rollback | Rollback is refused for agents the CLI deploys. | [Deploy and Operate](/docs/agents/deploy-and-operate#beta-limitations) |
| Conversations | One conversation cannot be ended on its own. | [Deploy and Operate](/docs/agents/deploy-and-operate#beta-limitations) |
| Packages | `deploy` bundles the CLI's own managed packages, whatever an exported project pins. | [Deploy and Operate](/docs/agents/deploy-and-operate#beta-limitations) |
| Speech | STT and TTS run with their default language and model. | [Voice](/docs/agents/voice#beta-limitations) |
| TeXML | `texml_application` channels answer 501. | [Voice](/docs/agents/voice#beta-limitations) |
| Approvals | A tool marked `ask` works under `dev` only; a deployed run with one pauses and cannot be decided yet. | [Tools](/docs/agents/tools#approvals) |
| Tools on calls | Tools on a call need `voice.harness`, and a tool marked `ask` stays off calls. | [Tools](/docs/agents/tools#limits) |
| MCP | Only remote servers over Streamable HTTP, with a bearer token or API-key header, and only their tools. | [MCP Servers](/docs/agents/tools/mcp-servers) |
| Preview tools | Gateway, Browser, Sandbox and File System are not available yet. | [Tools](/docs/agents/tools#on-the-roadmap) |