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Arenukvern

Flutter Inspector MCP Server

inspector_show

Show specific widget details and subtree in the Flutter inspector using the widget's object ID to inspect its properties and structure.

Instructions

RPC: Show specific widget details in the Flutter app inspector.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
portNoPort number where the Flutter app is running (defaults to 8181)
optionsYesOptions for showing widget details
Behavior2/5

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

No annotations provided, and the description does not disclose behavioral traits such as side effects, permissions, or return behavior. It only states the purpose without additional context.

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

Conciseness4/5

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

The description is very concise, consisting of a single sentence. It could be improved by front-loading key details but is appropriately sized.

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

Completeness2/5

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

The tool has nested object parameters and no output schema, yet the description does not explain what 'show' entails (e.g., returns data vs. visual highlight). It is incomplete for an agent to use correctly.

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

Parameters3/5

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

Schema coverage is 100%, and the description adds no extra meaning beyond the schema. The baseline for high coverage is 3.

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 clearly states it shows specific widget details in the Flutter app inspector, using a specific verb and resource. However, it does not differentiate from sibling tools like inspector_get_selected_widget or inspector_get_details_subtree.

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 on when to use this tool versus alternatives. The description lacks context about prerequisites, scenarios, or exclusions.

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

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