BM25 search over all 232 AINumbers ChainGraph chains. Returns ranked chains with their full recipe: ordered node sequence, deep-links, composer URL, and entry tool mcp_name. Agent flow: find_chain(query) → read recipe → call the listed node MCP tools in order, passing parent_hashes between steps....
AI agents call find_chain to retrieve information from Ainumbers Mcp Apps without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
query | string | Yes | Natural-language or keyword search (e.g. "AML programme", "DORA ICT readiness", "MiCA CASP", "PQC migration", "Basel capital"). |
top_n | number | — | Max results to return (default 5). |
Parameters from the server's own tool schema.
find_chain is a search and retrieval tool that queries a database of chains and returns structured information (recipes, node sequences, links, URLs). It performs no modifications, deletions, or executions—it only searches and reads. The tool's purpose is to discover available chains, not to execute them.
From the tool's definition Tool description states 'BM25 search over all 232 AINumbers ChainGraph chains. Returns ranked chains with their full recipe' and 'read recipe'.
Risk signalsAccepts freeform code/query input (query)
Attacks that exploit this kind of access
BM25 search over all 232 AINumbers ChainGraph chains. Returns ranked chains with their full recipe: ordered node sequence, deep-links, composer URL, and entry tool mcp_name. Agent flow: find_chain(query) → read recipe → call the listed node MCP tools in order, passing parent_hashes between steps. Do NOT use prompts/list or resources for agent chain discovery — use this tool. It is categorised as a Read tool in the Ainumbers Mcp Apps MCP Server, which means it retrieves data without modifying state.
find_chain accepts 2 parameters: query, top_n. Required: query. The full parameter table on this page comes from the server's own tool schema.
Register the Ainumbers Mcp Apps MCP server in PolicyLayer and add a rule for find_chain: 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 Ainumbers Mcp Apps. Nothing to install.
find_chain 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 find_chain 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 find_chain. 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.
find_chain is provided by the Ainumbers Mcp Apps MCP server (postoaklabs/ainumbers-mcp-apps). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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