Open a connection to an MCP target server (stdio or HTTP) and return a connectionId plus the server's name, version, capabilities, and counts.

Run the lint rules over the target's tool schemas and return a list of findings with stable codes, severities, locations, and fix hints.

Generate one valid and several malformed inputs per target tool, call each, and record the outcome (ok, toolError, protocolCrash), whether malformed inputs were silently accepted, and call latency. Tools annotated destructiveHint:true are skipped by default (set fuzzDestructive to include them). Returns a coverage summary of which tools were fuzzed vs skipped.

Run introspect + lint (and fuzz when requested) against the target, score the result on four dimensions, and return a Markdown report with the overall score, letter grade, per-dimension breakdown, findings, and fuzz table.

Enumerate the target's tools (name, description, input schema) using the default or a specific connection.

Close a single connection (by id) or all connections if id is omitted.