Retrieve a single conversation field definition by ID
AI agents call get_conversation_field to retrieve information from SparrowDesk without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves/queries a conversation field definition with no side effects. It is a data retrieval operation (get/fetch pattern), not creating, modifying, deleting, or executing operations. The blast radius of misuse is minimal—an agent could only access metadata about conversation fields.
From the tool's definition Retrieve a single conversation field definition by ID
Attacks that exploit this kind of access
Retrieve a single conversation field definition by ID. It is categorised as a Read tool in the SparrowDesk MCP Server, which means it retrieves data without modifying state.
Register the SparrowDesk MCP server in PolicyLayer and add a rule for get_conversation_field: 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 SparrowDesk. Nothing to install.
get_conversation_field 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_conversation_field 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_conversation_field. 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_conversation_field is provided by the SparrowDesk MCP server (sparrowdesk/sparrowdesk-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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