Retrieves messages from a Gmail thread using its `thread_id`, where the thread must be accessible by the specified `user_id`.
Part of the Google Super MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call GOOGLESUPER_FETCH_MESSAGE_BY_THREAD_ID to retrieve information from Google Super 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 GOOGLESUPER_FETCH_MESSAGE_BY_THREAD_ID 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.
tools:
GOOGLESUPER_FETCH_MESSAGE_BY_THREAD_ID:
rules:
- action: allowSee the full Google Super policy for all 200 tools.
Retrieves messages from a Gmail thread using its `thread_id`, where the thread must be accessible by the specified `user_id`.. It is categorised as a Read tool in the Google Super MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for GOOGLESUPER_FETCH_MESSAGE_BY_THREAD_ID. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Google Super MCP server.
GOOGLESUPER_FETCH_MESSAGE_BY_THREAD_ID 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 GOOGLESUPER_FETCH_MESSAGE_BY_THREAD_ID rule in your Intercept 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 Intercept policy for GOOGLESUPER_FETCH_MESSAGE_BY_THREAD_ID. 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.
GOOGLESUPER_FETCH_MESSAGE_BY_THREAD_ID is provided by the Google Super MCP server (googlesuper). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept