Entity-axis navigation primitive — the front door for company research. Returns a single response containing identity, filing inventory by form type, signal availability inline, indexed range, and ranked drill-down pointers. Use this BEFORE any deeper tool — it tells you which signals fire for th...
Risk signalsAccepts freeform code/query input (query)
Part of the MetricDuck — Financial Analysis server.
Free to start. No card required.
AI agents call browse_company to retrieve information from MetricDuck — Financial Analysis 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 browse_company 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.
{
"version": "1",
"default": "deny",
"tools": {
"browse_company": {}
}
}See the full MetricDuck — Financial Analysis policy for all 22 tools.
These attack patterns abuse exactly the kind of access browse_company gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Entity-axis navigation primitive — the front door for company research. Returns a single response containing identity, filing inventory by form type, signal availability inline, indexed range, and ranked drill-down pointers. Use this BEFORE any deeper tool — it tells you which signals fire for the company so your next call lands on the right axis (signal-axis, source-axis, or metric-axis). When to use: - Starting a research thread on a single company - Confirming what data MetricDuck has indexed before deep-diving - Discovering which signals fire (M&A, partnerships, guidance shifts, accounting flags) without needing to fetch a filing first When NOT to use: - Cross-company screening → use screen_companies (metrics) or screen_filing_signals (signals) - Concept/theme discovery → use search_sec_filings Drill-down map (the response will recommend specific calls based on what's available): - browse_signal(signal_id, ticker=X) — descend into a specific signal's payload + see_also accessions - get_filing_index(ticker) — full signal map for the latest filing - get_xbrl_facts(ticker) — dimensional financial drill-down _(atom v1: revisit response shape after first 5 q001/q012/q003 traces)_. It is categorised as a Read tool in the MetricDuck — Financial Analysis MCP Server, which means it retrieves data without modifying state.
Register the MetricDuck — Financial Analysis MCP server in PolicyLayer and add a rule for browse_company: 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 MetricDuck — Financial Analysis. Nothing to install.
browse_company 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 browse_company 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 browse_company. 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.
browse_company is provided by the MetricDuck — Financial Analysis MCP server (https://mcp.metricduck.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 22 MetricDuck — Financial Analysis tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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