List all work item types with compact field summaries
AI agents call discover_work_item_types to retrieve information from Azure DevOps MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only discovery/listing operation to retrieve information about work item type definitions. It has no side effects, does not execute code, create, modify, or delete any data. The blast radius of misuse is minimal—an agent could only learn metadata about the system's structure. This clearly fits the Read category (retrieves or queries data; no side effects).
From the tool's definition Tool name 'discover_work_item_types' and description 'List all work item types with compact field summaries' indicate a retrieval operation that enumerates metadata about available work item types without modifying any data.
Attacks that exploit this kind of access
List all work item types with compact field summaries. It is categorised as a Read tool in the Azure DevOps MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Azure DevOps MCP Server MCP server in PolicyLayer and add a rule for discover_work_item_types: 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 Azure DevOps MCP Server. Nothing to install.
discover_work_item_types 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 discover_work_item_types 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 discover_work_item_types. 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.
discover_work_item_types is provided by the Azure DevOps MCP Server MCP server (jaybird-us/azure-devops-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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