Agent Signal

Monday digest for agent builders

Agent Signal / Directory / Sequential Thinking

Local stdio

Sequential Thinking

Reference MCP server that gives the model a numbered, revisable chain of thought for problems that should not be one-shot.

Published as @modelcontextprotocol/server-sequential-thinking. The model calls a single tool with a thought number, a running total, and optional revision or branch fields. History lasts for the connection and is capped by MAX_THOUGHT_HISTORY (default 1000).

The package asks for Node.js 24 or later when you launch it with npx. Set DISABLE_THOUGHT_LOGGING=true if you do not want each thought printed to stderr.

Setup snippet

{
  "mcpServers": {
    "sequential-thinking": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-sequential-thinking"]
    }
  }
}

Client config shape varies. Cursor and Claude Desktop use mcpServers. VS Code often uses servers. The values above are the part that matters.

Homepage
modelcontextprotocol.io/
Source
github.com/modelcontextprotocol/servers/tree/main/src/sequentialthinking
Maintainer
MCP steering group
Transport
Local stdio
Auth
No token. The thought history stays in the server process for the life of the connection.
Last verified
Tags
Reference, Local, Reasoning