Detect performative speech acts where divine speech IS the creative act.
AI agents call detect_performatives to retrieve information from BigContext MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a document analysis tool that performs pattern recognition on text to identify performative speech acts. It reads and interprets content semantically but does not create, modify, delete, execute code, or initiate external operations. It falls clearly into the Read category as a detection/analysis function.
From the tool's definition Tool name 'detect_performatives' and description 'Detect performative speech acts where divine speech IS the creative act' indicate analysis and detection of linguistic patterns.
Attacks that exploit this kind of access
Detect performative speech acts where divine speech IS the creative act. It is categorised as a Read tool in the BigContext MCP MCP Server, which means it retrieves data without modifying state.
Register the BigContext MCP server in PolicyLayer and add a rule for detect_performatives: 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 BigContext MCP. Nothing to install.
detect_performatives 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 detect_performatives 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 detect_performatives. 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.
detect_performatives is provided by the BigContext MCP server (rixmerz/bigcontext_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
detect_performatives is one line of BigContext's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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