haiku_discover_yields

Part of the Haiku DeFi MCP MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

// WHEN AI AGENTS USE THIS TOOL

AI agents call haiku_discover_yields to retrieve information from Haiku DeFi MCP 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.

// WHY ENFORCE A POLICY ON HAIKU_DISCOVER_YIELDS

Even though haiku_discover_yields 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.

// RECOMMENDED POLICY

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

haiku-defi-mcp.yaml

tools:
  haiku_discover_yields:
    rules:
      - action: allow

See the full Haiku DeFi MCP policy for all 7 tools.

// DETAILS

Tool Name haiku_discover_yields

Category Read

MCP Server Haiku DeFi MCP MCP Server

Risk Level Low

// MORE HAIKU DEFI MCP TOOLS

Execute haiku_execute Write haiku_prepare_signatures Read haiku_analyze_portfolio Read haiku_get_balances Read haiku_get_quote Read haiku_get_tokens

// WHAT CAN GO WRONG

Agents calling read-class tools like haiku_discover_yields have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER READ TOOLS ACROSS MCP SERVERS

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

Firecrawl Web Scraping Server firecrawl_check_crawl_status Firecrawl Web Scraping Server firecrawl_crawl Firecrawl Web Scraping Server firecrawl_deep_research Firecrawl Web Scraping Server firecrawl_extract Firecrawl Web Scraping Server firecrawl_map Firecrawl Web Scraping Server firecrawl_scrape

// RELATED READING

// FAQ

What does the haiku_discover_yields tool do? +

Discover yield-bearing opportunities across DeFi protocols. Returns APY, TVL, risk parameters, and token IIDs ready for haiku_get_quote. Use this to answer questions like 'best lending yields on Arbitrum', 'highest APY vaults with at least $1M TVL', or 'what can I do with USDC on BNB Chain'. The iid field in results can be used directly as a targetWeight key in haiku_get_quote.. It is categorised as a Read tool in the Haiku DeFi MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on haiku_discover_yields? +

Add a rule in your Intercept YAML policy under the tools section for haiku_discover_yields. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Haiku DeFi MCP MCP server.

What risk level is haiku_discover_yields? +

haiku_discover_yields is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit haiku_discover_yields? +

Yes. Add a rate_limit block to the haiku_discover_yields 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.

How do I block haiku_discover_yields completely? +

Set action: deny in the Intercept policy for haiku_discover_yields. 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.

What MCP server provides haiku_discover_yields? +

haiku_discover_yields is provided by the Haiku DeFi MCP MCP server (haiku-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

haiku_discover_yields

Let agents act without letting them run wild.