decrypt_data
Decrypt data using a cryptographic key
This record as markdown: /tools/coder-rl-claude-mcpserver-dev1/decrypt-data.md
What decrypt_data does on Claude MCP Server Ecosystem
AI agents call decrypt_data to retrieve information from Claude MCP Server Ecosystem without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why decrypt_data is rated Low
Decryption is a read operation—it retrieves data in plaintext form without creating, modifying, or destroying anything. However, severity is high because decryption with an available key exposes sensitive encrypted data, and misuse by an AI agent could leak confidential information if the agent has access to cryptographic material and encrypted datasets.
From the tool's definition Tool name 'decrypt_data' and description 'Decrypt data using a cryptographic key' indicates retrieval of plaintext from encrypted data without modification.
Attacks that exploit this kind of access
The rule that runs decrypt_data safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Claude MCP Server Ecosystem, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For decrypt_data, this is the rule to start with:
decrypt_data is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Claude MCP Server Ecosystem, apply this rule, and every decrypt_data call is checked against it from then on.
Questions about decrypt_data
Decrypt data using a cryptographic key. It is categorised as a Read tool in the Claude MCP Server Ecosystem MCP Server, which means it retrieves data without modifying state.
Register the Claude MCP Server Ecosystem MCP server in PolicyLayer and add a rule for decrypt_data: 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 Claude MCP Server Ecosystem. Nothing to install.
decrypt_data 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 decrypt_data 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 decrypt_data. 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.
decrypt_data is provided by the Claude MCP Server Ecosystem MCP server (coder-rl/claude_mcpserver_dev1). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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