AI agents call appd_get_health_rule_violations to retrieve information from Appd without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries historical health rule violation data for an application. It retrieves information without creating, modifying, or deleting data. The read-only nature of the server and the retrieval-focused description confirm this is a passive data query operation. Severity is low because exposing monitoring/alerting history data has limited blast radius compared to operational changes or data destruction.
From the tool's definition Tool name includes 'get'; description states 'Retrieve' violations; server is explicitly described as 'read-only'; no mutations, deletions, or external side effects mentioned.
Attacks that exploit this kind of access
Retrieve open / recently-closed health rule violations for an application within a time window. It is categorised as a Read tool in the Appd MCP Server, which means it retrieves data without modifying state.
Register the Appd MCP server in PolicyLayer and add a rule for appd_get_health_rule_violations: 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 Appd. Nothing to install.
appd_get_health_rule_violations 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 appd_get_health_rule_violations 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 appd_get_health_rule_violations. 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.
appd_get_health_rule_violations is provided by the Appd MCP server (jagalliers/appd-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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