check_outline
Check Outline wiki/knowledge base health via GET /api/_healthcheck. Returns healthy state.
This record as markdown: /tools/aaronckj-mcp-nettools/check-outline.md
What check_outline does on Mcp Nettools
AI agents call check_outline to retrieve information from Mcp Nettools without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why check_outline is rated Low
Health check endpoints are diagnostic reads that query system status. The GET method and explicit description of returning 'healthy state' indicate no data modification, execution of commands, or irreversible actions. The tool fits the 'Read' category as it retrieves diagnostic information. Severity is low because even if misused, a health check query cannot cause data loss, financial harm, or system damage.
From the tool's definition Tool performs a GET request to /api/_healthcheck endpoint, which is a read-only health check operation that retrieves status information without modifying any data or triggering external side effects.
Attacks that exploit this kind of access
The rule that runs check_outline safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Nettools, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For check_outline, this is the rule to start with:
check_outline 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 Mcp Nettools, apply this rule, and every check_outline call is checked against it from then on.
Questions about check_outline
Check Outline wiki/knowledge base health via GET /api/_healthcheck. Returns healthy state. It is categorised as a Read tool in the Mcp Nettools MCP Server, which means it retrieves data without modifying state.
Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_outline: 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 Mcp Nettools. Nothing to install.
check_outline 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 check_outline 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 check_outline. 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.
check_outline is provided by the Mcp Nettools MCP server (aaronckj/mcp-nettools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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