check_linkwarden
Check Linkwarden bookmark manager availability via GET /api/v1/auth/session (returns 401 without auth, confirming service is running).
This record as markdown: /tools/aaronckj-mcp-nettools/check-linkwarden.md
What check_linkwarden does on Mcp Nettools
AI agents call check_linkwarden 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_linkwarden is rated Low
This is a read-only network probe that queries the status of a remote service endpoint using HTTP GET. It retrieves information (service availability) without creating, modifying, deleting, or executing operations on data. The unauthenticated nature (expects 401) indicates it's a simple availability check, making it a benign Read operation with low severity and blast radius.
From the tool's definition Tool description states it checks Linkwarden availability 'via GET /api/v1/auth/session' with a read-only GET request that returns status codes without modifying any state. The tool 'confirms service is running' through a health-check-style probe.
Attacks that exploit this kind of access
The rule that runs check_linkwarden 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_linkwarden, this is the rule to start with:
check_linkwarden 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_linkwarden call is checked against it from then on.
Questions about check_linkwarden
Check Linkwarden bookmark manager availability via GET /api/v1/auth/session (returns 401 without auth, confirming service is running). 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_linkwarden: 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_linkwarden 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_linkwarden 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_linkwarden. 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_linkwarden 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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