suggest_tests
Suggest test cases for a symbol using AI
This record as markdown: /tools/nikolai-vysotskyi-trace-mcp/suggest-tests.md
What suggest_tests does on Trace
AI agents call suggest_tests to retrieve information from Trace without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why suggest_tests is rated Low
The tool performs analysis and suggestion of test cases based on existing code symbols. This is a read-only operation: it retrieves information about a symbol and generates recommendations without side effects such as creating, modifying, deleting, or executing code. Even though it involves AI-driven analysis, the output is purely advisory (suggestions), not an action that changes state or runs operations.
From the tool's definition Tool description states 'Suggest test cases for a symbol using AI' — a suggestive/analytical operation that reads code symbols and proposes test cases without modifying, deleting, or executing code.
Attacks that exploit this kind of access
The rule that runs suggest_tests safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Trace, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For suggest_tests, this is the rule to start with:
suggest_tests 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 Trace, apply this rule, and every suggest_tests call is checked against it from then on.
Questions about suggest_tests
Suggest test cases for a symbol using AI. It is categorised as a Read tool in the Trace MCP Server, which means it retrieves data without modifying state.
Register the Trace MCP server in PolicyLayer and add a rule for suggest_tests: 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 Trace. Nothing to install.
suggest_tests 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 suggest_tests 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 suggest_tests. 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.
suggest_tests is provided by the Trace MCP server (nikolai-vysotskyi/trace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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