Tek dosyadan text çıkar (PDF, DOCX, PPTX, XLSX)
AI agents call extract_text_from_file to retrieve information from KnowledgeBaseMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs read-only retrieval of text content from existing documents. No data is created, modified, deleted, or executed. The operation has no side effects beyond returning extracted content. It falls squarely into the Read category with low severity since it only retrieves information without capability to alter system state or expose sensitive operations.
From the tool's definition Tool name 'extract_text_from_file' and description indicate it extracts/reads text content from documents (PDF, DOCX, PPTX, XLSX). The description in Turkish states 'Extract text from a single file' with no modification or deletion capability mentioned.
Attacks that exploit this kind of access
Tek dosyadan text çıkar (PDF, DOCX, PPTX, XLSX). It is categorised as a Read tool in the KnowledgeBaseMCP MCP Server, which means it retrieves data without modifying state.
Register the KnowledgeBase MCP server in PolicyLayer and add a rule for extract_text_from_file: 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 KnowledgeBaseMCP. Nothing to install.
extract_text_from_file 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 extract_text_from_file 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 extract_text_from_file. 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.
extract_text_from_file is provided by the KnowledgeBase MCP server (mehmetozcan-zz/knowledgebasemcp). 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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