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What decode_uint64 does on Algorand MCP
AI agents call decode_uint64 to retrieve information from Algorand MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why decode_uint64 is rated Low
This is a utility function that performs data transformation (bytes → uint64) with no side effects. It retrieves/interprets data but does not create, modify, delete, execute code, or involve financial transactions. The context of Algorand blockchain operations does not change the nature of this specific tool, which is a simple decoding helper.
From the tool's definition Tool name 'decode_uint64' and description 'Decode bytes to a uint64' indicate a parsing/decoding operation that reads and transforms data without modifying state or executing arbitrary operations.
Attacks that exploit this kind of access
The rule that runs decode_uint64 safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Algorand MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For decode_uint64, this is the rule to start with:
decode_uint64 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 Algorand MCP, apply this rule, and every decode_uint64 call is checked against it from then on.
Questions about decode_uint64
Decode bytes to a uint64. It is categorised as a Read tool in the Algorand MCP MCP Server, which means it retrieves data without modifying state.
Register the Algorand MCP server in PolicyLayer and add a rule for decode_uint64: 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 Algorand MCP. Nothing to install.
decode_uint64 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 decode_uint64 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 decode_uint64. 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.
decode_uint64 is provided by the Algorand MCP server (goplausible/algorand-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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