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prestonmcgowan

tesla-powerwall

powerwall_get_grid_status

Check whether your Tesla Powerwall is connected to the grid. Retrieve current grid connection status to monitor system availability.

Instructions

Get grid connection status

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3.4/5.0
Behavior3/5

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

The verb 'Get' implies a read-only operation with no side effects, which is useful given no annotations are provided. However, the description does not disclose additional behavioral details such as authentication requirements, response shape, or whether the status is live or cached.

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?

A single, front-loaded sentence with no wasted words. For a zero-parameter status getter, this is appropriately sized and easy to parse.

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

Completeness3/5

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

The definition is minimally viable for a simple no-parameter getter, but it lacks usage guidance and behavioral context that would help an agent choose it confidently among many sibling status tools. Since there is no output schema, a bit more detail about what 'grid connection status' actually contains would improve completeness.

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?

The tool takes zero parameters and the input schema is empty and fully covered. There are no parameter semantics for the description to add, so the baseline for zero-parameter tools applies.

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

Purpose4/5

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

The description uses a specific verb and resource ('Get grid connection status'), clearly identifying what the tool does. It is not vague, though it essentially restates the tool name and does not explicitly differentiate itself from siblings like powerwall_get_system_status.

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

Usage Guidelines2/5

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

No guidance is provided about when to use this tool versus alternatives. With many sibling getters, an agent is not told whether to prefer this over system status or meters aggregates.

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