AI agents call init_semantic to retrieve information from Lucid without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
init_semantic only reads and returns schema information, sample data, and profiling summaries. The description explicitly states it returns data for the host Agent to infer semantics, with actual saving deferred to a separate tool (update_semantic). This is a read/query operation with no side effects of its own.
From the tool's definition 'Return all connected table schemas, sample data, and profiling summaries' — purely retrieves existing metadata and samples; no modification occurs in this tool itself.
Attacks that exploit this kind of access
Return all connected table schemas, sample data, and profiling summaries for the host Agent to infer business semantics. After inference, call update_semantic to save results. It is categorised as a Read tool in the Lucid MCP Server, which means it retrieves data without modifying state.
Register the Lucid MCP server in PolicyLayer and add a rule for init_semantic: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Lucid. Nothing to install.
init_semantic is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the init_semantic rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for init_semantic. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
init_semantic is provided by the Lucid MCP server (wiseriaai/lucid-skill). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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