列出所有可用的 Web API 類別，從 Can I Use 資料庫中取得完整的類別列表
AI agents call list_api_categories to retrieve information from Dev Advisor MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates metadata about Web API categories from a public database (Can I Use). It performs a query operation with no capability to modify, execute, delete, or trigger external actions. The output is informational reference data used to support the analysis workflow. This is a straightforward Read operation with minimal risk if misused.
From the tool's definition Tool description states it 列出所有可用的 Web API 類別 (lists all available Web API categories) and retrieves from Can I Use database. The verb 'list' and 'retrieve' indicate read-only data retrieval with no modifications or side effects.
Attacks that exploit this kind of access
列出所有可用的 Web API 類別，從 Can I Use 資料庫中取得完整的類別列表. It is categorised as a Read tool in the Dev Advisor MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Dev Advisor MCP Server MCP server in PolicyLayer and add a rule for list_api_categories: 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 Dev Advisor MCP Server. Nothing to install.
list_api_categories 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 list_api_categories 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 list_api_categories. 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.
list_api_categories is provided by the Dev Advisor MCP Server MCP server (mukiwu/dev-advisor-mcp). 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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