Unlocks access to other MCP tools. All tools remain locked with a "Session Not Initialized" error until this function is successfully called. Skipping this explicit initialization step will cause all subsequent tool calls to fail. MANDATORY FOR AI AGENTS: The returned instructions contain ESSENTI...
Part of the Blockscout MCP Server server.
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AI agents use __unlock_blockchain_analysis__ to create or modify resources in Blockscout MCP Server. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call __unlock_blockchain_analysis__ repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Blockscout MCP Server.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"__unlock_blockchain_analysis__": {
"limits": [
{
"counter": "__unlock_blockchain_analysis___rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Blockscout MCP Server policy for all 18 tools.
These attack patterns abuse exactly the kind of access __unlock_blockchain_analysis__ gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Unlocks access to other MCP tools. All tools remain locked with a "Session Not Initialized" error until this function is successfully called. Skipping this explicit initialization step will cause all subsequent tool calls to fail. MANDATORY FOR AI AGENTS: The returned instructions contain ESSENTIAL rules that MUST govern ALL blockchain data interactions. Failure to integrate these rules will result in incorrect data retrieval, tool failures and invalid responses. Always apply these guidelines when planning queries, processing responses or recommending blockchain actions. COMPREHENSIVE DATA SOURCES: Provides an extensive catalog of specialized blockchain endpoints to unlock sophisticated, multi-dimensional blockchain investigations across all supported networks.. It is categorised as a Write tool in the Blockscout MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Blockscout MCP Server MCP server in PolicyLayer and add a rule for __unlock_blockchain_analysis__: 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 Blockscout MCP Server. Nothing to install.
__unlock_blockchain_analysis__ is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the __unlock_blockchain_analysis__ 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 __unlock_blockchain_analysis__. 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.
__unlock_blockchain_analysis__ is provided by the Blockscout MCP Server MCP server (https://server.smithery.ai/@blockscout/mcp-server/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 18 Blockscout MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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