Flutter Inspector MCP Server

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

With no annotations provided, the description carries full burden for behavioral disclosure. It mentions the tool connects to a Flutter debug port and has a default port, but doesn't describe what 'toggling opacity layers debugging' actually does behaviorally, whether it affects app performance or visual rendering, what permissions are needed, or what the expected outcome is. The description provides basic operational context but lacks important behavioral details.

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

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

The description is appropriately concise with two sentences that efficiently convey the core functionality and connection details. It's front-loaded with the main purpose and follows with implementation details. There's no wasted text, though it could potentially benefit from slightly more behavioral context given the lack of annotations.

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

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

Given the tool's moderate complexity (debugging toggle with port configuration), no annotations, and no output schema, the description provides basic operational context but lacks important details about what the tool actually does behaviorally, what effects to expect, or what happens after invocation. It's minimally adequate but leaves significant gaps in understanding the tool's impact and use cases.

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

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

With 100% schema description coverage, the input schema already fully documents both parameters. The description adds minimal value beyond the schema by mentioning the default port 8181 context, but doesn't provide additional semantic meaning about when to use custom ports or what the 'enabled' parameter actually controls beyond what's in the schema descriptions.

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

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

The description clearly states the tool's purpose: 'Toggle opacity layers debugging' with the specific RPC identifier 'ext.flutter.debugDisableOpacityLayers'. It distinguishes from siblings by mentioning the Flutter debug context, but doesn't explicitly differentiate from similar debug tools like 'debug_disable_clip_layers' or 'debug_disable_physical_shape_layers'.

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

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

The description implies usage context by mentioning 'Connects to the default Flutter debug port (8181) unless specified otherwise', which suggests this is for Flutter debugging scenarios. However, it doesn't provide explicit guidance on when to use this tool versus alternatives like other debug_disable_* tools or when debugging opacity layers is appropriate versus other debugging options.

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