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 instructio...
Part of the Blockscout MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
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. Intercept'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.
tools:
__unlock_blockchain_analysis__:
rules:
- action: allow
rate_limit:
max: 30
window: 60 See the full Blockscout MCP Server policy for all 18 tools.
Agents calling write-class tools like __unlock_blockchain_analysis__ have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.
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.
Add a rule in your Intercept YAML policy under the tools section for __unlock_blockchain_analysis__. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Blockscout MCP Server MCP server.
__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 Intercept 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 Intercept 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 (blockscout/mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept