Diagnostica falha em teste existente: identifica causa raiz, classifica o tipo (flaky, regression, environment) e sugere fix.
AI agents call diagnose_test_failure to retrieve information from GPA Backend Test Analyst MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs diagnostic analysis on existing test failures. It retrieves test metadata, analyzes logs or results, and provides suggestions—all read-only operations with no side effects. It does not execute tests, modify code, delete data, or trigger external operations. The most severe action is analysis and recommendation, which is characteristic of Read category tools.
From the tool's definition Tool description states 'diagnose_failure' identifies root cause, classifies failure type, and suggests fixes—operations that analyze and query test results without modifying test code, infrastructure, or data.
Attacks that exploit this kind of access
Diagnostica falha em teste existente: identifica causa raiz, classifica o tipo (flaky, regression, environment) e sugere fix. It is categorised as a Read tool in the GPA Backend Test Analyst MCP MCP Server, which means it retrieves data without modifying state.
Register the GPA Backend Test Analyst MCP server in PolicyLayer and add a rule for diagnose_test_failure: 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 GPA Backend Test Analyst MCP. Nothing to install.
diagnose_test_failure 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 diagnose_test_failure 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 diagnose_test_failure. 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.
diagnose_test_failure is provided by the GPA Backend Test Analyst MCP server (renanpires-tech/mcpautomation). 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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