Get all OmniFocus health metrics in a single call. Returns counts for inbox, projects (by status), tasks (by status), tags, flagged tasks, and untagged tasks. Includes health indicators (🟢/🟡/🔴) and percentages. Much faster than multiple filter_tasks calls for dashboards.
AI agents call get_system_health to retrieve information from OmniFocus MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries and retrieves aggregated health statistics from OmniFocus without creating, modifying, deleting, or executing any operations. This is a pure read operation with no blast radius if misused by an AI agent.
From the tool's definition Tool returns system health metrics and counts with no side effects. Performs data retrieval only: 'Returns counts for inbox, projects (by status), tasks (by status), tags, flagged tasks, and untagged tasks.' No create, modify, delete, or execute operations.
Attacks that exploit this kind of access
Get all OmniFocus health metrics in a single call. Returns counts for inbox, projects (by status), tasks (by status), tags, flagged tasks, and untagged tasks. Includes health indicators (🟢/🟡/🔴) and percentages. Much faster than multiple filter_tasks calls for dashboards. It is categorised as a Read tool in the OmniFocus MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OmniFocus MCP Server MCP server in PolicyLayer and add a rule for get_system_health: 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 OmniFocus MCP Server. Nothing to install.
get_system_health 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 get_system_health 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 get_system_health. 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.
get_system_health is provided by the OmniFocus MCP Server MCP server (mojenmojen/of-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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