Read an uploaded file's contents by name.
AI agents call read_file to retrieve information from Cryptosense without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves file data without modifying, executing code, deleting, or creating financial obligations. It is a straightforward read operation. Severity is low because accessing file contents has minimal blast radius in a crypto market intelligence context, assuming the files contain public or user-owned data. The crypto server context does not change the fundamental nature of a read operation.
From the tool's definition Tool description states 'Read an uploaded file's contents by name' — the verb 'read' and phrase 'contents' indicate data retrieval with no modification or deletion.
Attacks that exploit this kind of access
Read an uploaded file's contents by name. It is categorised as a Read tool in the Cryptosense MCP Server, which means it retrieves data without modifying state.
Register the Cryptosense MCP server in PolicyLayer and add a rule for read_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 Cryptosense. Nothing to install.
read_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 read_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 read_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.
read_file is provided by the Cryptosense MCP server (josephibra/cryptosense-mcp). 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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