Returns the REST API contract for an AdCritter entity. Without an action parameter, returns a summary with available action names - use this to discover what you can do. With an action parameter (e.g., 'create', 'list', 'get'), returns the full details for that action: route, HTTP method, request...
Part of the AdCritter for Builders server.
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AI agents call adcritter_get_api_reference to retrieve information from AdCritter for Builders 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 adcritter_get_api_reference 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": {
"adcritter_get_api_reference": {}
}
}See the full AdCritter for Builders policy for all 7 tools.
These attack patterns abuse exactly the kind of access adcritter_get_api_reference 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.
Returns the REST API contract for an AdCritter entity. Without an action parameter, returns a summary with available action names - use this to discover what you can do. With an action parameter (e.g., 'create', 'list', 'get'), returns the full details for that action: route, HTTP method, request schema, response schema, error codes, and constraints. Available entities: ad, advertiser, audience, authentication, blueprint, campaign, domain, geo, media-asset, me, plan, report, segment, settings, targeting.. It is categorised as a Read tool in the AdCritter for Builders MCP Server, which means it retrieves data without modifying state.
Register the AdCritter for Builders MCP server in PolicyLayer and add a rule for adcritter_get_api_reference: 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 AdCritter for Builders. Nothing to install.
adcritter_get_api_reference 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 adcritter_get_api_reference 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 adcritter_get_api_reference. 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.
adcritter_get_api_reference is provided by the AdCritter for Builders MCP server (https://mcp.adcritter.com/mcp/dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 7 AdCritter for Builders tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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