Given a natural-language goal like 'find DEX trades on Arbitrum' or 'get lending liquidation data', returns the best matching subgraphs with reliability scores and query URLs. Automatically infers domain and protocol type from the goal. Each result includes a query_url — replace [api-key] with yo...
Part of the Subgraph Registry MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call recommend_subgraph to retrieve information from Subgraph Registry without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though recommend_subgraph only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
tools:
recommend_subgraph:
rules:
- action: allowSee the full Subgraph Registry policy for all 4 tools.
Agents calling read-class tools like recommend_subgraph have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.
Given a natural-language goal like 'find DEX trades on Arbitrum' or 'get lending liquidation data', returns the best matching subgraphs with reliability scores and query URLs. Automatically infers domain and protocol type from the goal. Each result includes a query_url — replace [api-key] with your Graph API key to query live data.. It is categorised as a Read tool in the Subgraph Registry MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for recommend_subgraph. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Subgraph Registry MCP server.
recommend_subgraph 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 recommend_subgraph 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 recommend_subgraph. 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.
recommend_subgraph is provided by the Subgraph Registry MCP server (subgraph-registry-mcp). 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