Lagaam MCP Server

io.github.lagaam-ai/lagaam

Repository Registry

What is the Lagaam MCP server?

Stops an agent's Trino or Pinot query before it runs if it costs too much or reads outside its grant

How to install Lagaam

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

LAGAAM_ALLOWED_TABLES
required
Comma list of catalog.schema.table grants; the server will not start without it
LAGAAM_ALLOW_ALL_TABLES
true to run with no grant at all: an explicit opt-out, off by default
LAGAAM_ENGINE
Which adapter to run
TRINO_HOST
Trino coordinator host
TRINO_PORT
Trino coordinator port
TRINO_USER
Trino user
PINOT_CONTROLLER_URL
Pinot controller URL
PINOT_BROKER_URL
Pinot broker URL
PINOT_USER
Pinot user; unset means no auth
PINOT_PASSWORD
secret
Pinot password; unset means no auth
LAGAAM_AGENT_NAME
Identity stamped on the audit trail
LAGAAM_MAX_SCAN_BYTES
Scan-bytes budget per query, checked before it runs (default 50 GiB)
LAGAAM_MAX_ROWS
Scanned-row estimate budget per query; unset means ungated
LAGAAM_MAX_INTERMEDIATE_ROWS
Rows the engine would build at its widest step, not rows returned, so a LIMIT doesn't lower it
LAGAAM_MAX_RETURNED_ROWS
Rows returned to the agent per query, capped at 100000; a bigger LIMIT in the query is lowered to it
LAGAAM_QUERY_TIMEOUT
Wall-clock seconds per query
LAGAAM_METADATA_TTL
Metadata cache TTL, seconds
LAGAAM_AUDIT_LOG
Audit JSONL file path; unset means stderr

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "lagaam": {
      "command": "uvx",
      "args": [
        "lagaam"
      ],
      "env": {
        "LAGAAM_ALLOWED_TABLES": "<YOUR_LAGAAM_ALLOWED_TABLES>",
        "LAGAAM_ALLOW_ALL_TABLES": "<YOUR_LAGAAM_ALLOW_ALL_TABLES>",
        "LAGAAM_ENGINE": "<YOUR_LAGAAM_ENGINE>",
        "TRINO_HOST": "<YOUR_TRINO_HOST>",
        "TRINO_PORT": "<YOUR_TRINO_PORT>",
        "TRINO_USER": "<YOUR_TRINO_USER>",
        "PINOT_CONTROLLER_URL": "<YOUR_PINOT_CONTROLLER_URL>",
        "PINOT_BROKER_URL": "<YOUR_PINOT_BROKER_URL>",
        "PINOT_USER": "<YOUR_PINOT_USER>",
        "PINOT_PASSWORD": "<YOUR_PINOT_PASSWORD>",
        "LAGAAM_AGENT_NAME": "<YOUR_LAGAAM_AGENT_NAME>",
        "LAGAAM_MAX_SCAN_BYTES": "<YOUR_LAGAAM_MAX_SCAN_BYTES>",
        "LAGAAM_MAX_ROWS": "<YOUR_LAGAAM_MAX_ROWS>",
        "LAGAAM_MAX_INTERMEDIATE_ROWS": "<YOUR_LAGAAM_MAX_INTERMEDIATE_ROWS>",
        "LAGAAM_MAX_RETURNED_ROWS": "<YOUR_LAGAAM_MAX_RETURNED_ROWS>",
        "LAGAAM_QUERY_TIMEOUT": "<YOUR_LAGAAM_QUERY_TIMEOUT>",
        "LAGAAM_METADATA_TTL": "<YOUR_LAGAAM_METADATA_TTL>",
        "LAGAAM_AUDIT_LOG": "<YOUR_LAGAAM_AUDIT_LOG>"
      }
    }
  }
}

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