tengu_v3_origin_whale_holdings
What the tracked managers own, as filed on Form 13F: latest-period positions with value, share/principal count and portfolio weight, filterable by manager or issuer. Call it for whale positioning and conviction sizing. 13F is filed within 45 days of quarter end and covers LONG US equity only — it...
This record as markdown: /tools/tengu-mcp/tengu-v3-origin-whale-holdings.md
What tengu_v3_origin_whale_holdings does on Tengu
AI agents call tengu_v3_origin_whale_holdings to retrieve information from Tengu without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
limit | integer | — | |
ticker | string | — | |
manager | string | — |
Parameters from the server's own tool schema.
Why tengu_v3_origin_whale_holdings is rated Low
Even though tengu_v3_origin_whale_holdings only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs tengu_v3_origin_whale_holdings safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Tengu, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For tengu_v3_origin_whale_holdings, this is the rule to start with:
tengu_v3_origin_whale_holdings is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Tengu, apply this rule, and every tengu_v3_origin_whale_holdings call is checked against it from then on.
Questions about tengu_v3_origin_whale_holdings
What the tracked managers own, as filed on Form 13F: latest-period positions with value, share/principal count and portfolio weight, filterable by manager or issuer. Call it for whale positioning and conviction sizing. 13F is filed within 45 days of quarter end and covers LONG US equity only — it is a lagged, partial view of a book, never a live one. It is categorised as a Read tool in the Tengu MCP Server, which means it retrieves data without modifying state.
tengu_v3_origin_whale_holdings accepts 3 parameters: limit, ticker, manager. The full parameter table on this page comes from the server's own tool schema.
Register the Tengu MCP server in PolicyLayer and add a rule for tengu_v3_origin_whale_holdings: 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 Tengu. Nothing to install.
tengu_v3_origin_whale_holdings 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 tengu_v3_origin_whale_holdings 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 tengu_v3_origin_whale_holdings. 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.
tengu_v3_origin_whale_holdings is provided by the Tengu MCP server (Hlobo-dev/tengu-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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