scope
groups spatial/temporal filters so the flat namespace stays readable.
How to use it
scope is exposed by the Signal MCP Spec MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the scope tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
FULL SIGNAL MCP SPEC LISTINGOther tools in Signal MCP Spec (3)
uses the same enum as the resource (signal://lexicon), so an agent that's read the lexicon knows exactly what to pass.
is a string, not a keyword array. The agent thinks in natural language; making it pre-extract keywords is asking it to do the server's job.
is optional — the server picks intelligently by default. This is progressive disclosure: easy path is one parameter (query), power path is five.