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WLAN-Pi
by WLAN-Pi

renew_dhcp_lease

Renew the DHCP lease for a specified network interface to obtain a fresh IP address assignment from the DHCP server.

Instructions

Renew the DHCP lease for an interface.

The renewal happens in the interface's current namespace, and the interface IP address may change as a result.

Args: interface: Interface name (e.g. 'eth0')

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
interfaceYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.2/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the behavioral disclosure burden. It usefully reveals that the renewal occurs in the interface's current namespace and that the IP address may change, which is important side-effect information. It does not mention broader risks like temporary connectivity loss, but it covers the most critical behavioral traits.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is short, front-loaded with the core purpose, and contains no filler. The key side effect is stated immediately after the purpose, and the parameter documentation is compact and useful.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a single-parameter tool with an output schema, the description is largely complete: it names the action, describes where it happens, notes a possible IP change, and defines the parameter. It could be improved by noting prerequisites or failure modes, but nothing essential is missing for a basic invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0%, so the description must compensate for the parameter. It defines 'interface' as an interface name and gives a concrete example ('eth0'), which is sufficient for an agent to understand the expected value. It does not enumerate constraints like DHCP-enabled interfaces, but the example and name provide adequate guidance.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly specifies the verb ('Renew') and resource ('DHCP lease for an interface'), making the tool's purpose immediately obvious. It is distinct from sibling getters like get_dhcp_leases because it describes an action, not a query.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The usage is implied by the action: use this when you want to renew an interface's DHCP lease. However, it does not explicitly state when to prefer this over alternatives or note exclusions, such as not using it for static interfaces.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.