get_usage_guide
Use this tool to look up the official Genkit usage guide, including project setup instructions and API best practices. ALWAYS call this before implementing Genkit features.
This record as markdown: /tools/firebase-genkit/get-usage-guide.md
What get_usage_guide does on Genkit MCP
AI agents call get_usage_guide to retrieve information from Genkit MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_usage_guide is rated Low
This tool retrieves and queries documentation (the Genkit usage guide). It performs no creation, modification, deletion, code execution, or financial operations. It is a straightforward information retrieval tool with no capability to alter state or trigger external operations. The blast radius of misuse is minimal—an AI agent could only retrieve documentation, which poses no security risk.
From the tool's definition Tool name is 'get_usage_guide' and description states it is used to 'look up the official Genkit usage guide.' The verb 'look up' and the action of retrieving documentation indicates a read-only retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs get_usage_guide safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Genkit MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_usage_guide, this is the rule to start with:
get_usage_guide 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 Genkit MCP, apply this rule, and every get_usage_guide call is checked against it from then on.
Questions about get_usage_guide
Use this tool to look up the official Genkit usage guide, including project setup instructions and API best practices. ALWAYS call this before implementing Genkit features. It is categorised as a Read tool in the Genkit MCP MCP Server, which means it retrieves data without modifying state.
Register the Genkit MCP server in PolicyLayer and add a rule for get_usage_guide: 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 Genkit MCP. Nothing to install.
get_usage_guide 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 get_usage_guide 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 get_usage_guide. 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.
get_usage_guide is provided by the Genkit MCP server (genkit-ai/genkit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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