Supported platforms

This page lists the supported version. Even if your favorite platform is not listed, it might still work as we support many industry standards.

Agents

Tessl can automatically configure AGENTS.md context & MCP server setup for several agents. See Guided setup.

Alpha

Agents marked as "Alpha" during setup are likely to show degraded results. This typically manifests in inconsistent invocation of tools or instruction following. Prompting the agent with instructions like "use Tessl" or "create a spec" is likely to help. We will remove the alpha label once we get the agent to pass our internal evaluation with good enough results.

Experimental

It should be possible to get Tessl working with any agent, ensuring AGENTS.md is picked up in their context and the agent is configured to use our stdio MCP server. Experimental agents may need extra prompting, as described under Alpha.

• You may need to rename AGENTS.md to whatever filename your agent uses to pick up context (or otherwise include AGENTS.md in its context).

• You will need to configure your agent to use our MCP server. Config formats vary, but it will likely look something like this in .mcp.json or similar:

  {
    "type": "stdio",
    "command": "tessl",
    "args": ["mcp"]
  }

Node runtime

• You need to have a modern version of Node.js installed (we use v22.17.0 or higher)

Operating system

• Supported: Mac, Linux - (both x64 and arm64)

• Experimental: Windows via Windows Subsystem for Linux