MCP SQLite Bridge: Every query gets stopped at the border.

Ask the agent a question below. Nothing reaches the database unchecked - try to break it if you want.

✓ SCHEMA VALIDATED✓ PARAMETERS BOUND✓ READ-ONLY ENFORCED

MCP Tool Registry3 Tools

Try it - ask the agent a questionInput Controls

Natural Language Prompt:

✓ Schema Validated · ✓ Bound ParametersCLEARED

Click ASK THE AGENT to send query through security checkpoint.

// Response payload will appear here

// Request JSON-RPC 2.0 payload

MANIFEST INSPECTION STREAM

SELECT * FROM initiatives WHERE category=?CLEARED

DROP TABLE recordsBLOCKED

Protocol Dispatch: POST /api/mcp
Zod Validation: Passed
Security Policy: READ_ONLY Allowed
Query Parameterization: Bound statement parameters

Inline Server Guardrail Enforcement Code:

if (isMutation(sql) && process.env.READ_ONLY === 'true') {
  throw new MCPError(-32601, 'SECURITY_POLICY_VIOLATION: Write trapped before SQL engine');
}

writes blocked

queries cleared

302ms

avg latency

MCP SSE / Transport Activity Stream Log

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