Find usages of deprecated APIs in the codebase
AI agents call deprecated_usage to retrieve information from code-intel 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 analysis and retrieval of information about code patterns without creating, modifying, or deleting any data. It is a static analysis query operation analogous to grep or code search, which are foundational Read operations. The blast radius is low because misuse only reveals information about existing code structure; it cannot alter systems or trigger unintended side effects.
From the tool's definition The tool name 'deprecated_usage' and description 'Find usages of deprecated APIs in the codebase' indicate a search/query operation that scans code to locate references to deprecated APIs.
Attacks that exploit this kind of access
Find usages of deprecated APIs in the codebase. It is categorised as a Read tool in the code-intel MCP Server MCP Server, which means it retrieves data without modifying state.
Register the code-intel MCP Server MCP server in PolicyLayer and add a rule for deprecated_usage: 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 code-intel MCP Server. Nothing to install.
deprecated_usage 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 deprecated_usage 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 deprecated_usage. 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.
deprecated_usage is provided by the code-intel MCP Server MCP server (vohongtho/code-intel-platform). 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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