Circuitry MCP Server

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

With no annotations provided, the description carries the full burden. It discloses key behavioral traits: it initiates a connection request, triggers a permission dialog requiring user approval, and is a prerequisite for other tools. However, it doesn't mention potential outcomes (success/failure states), timeout behavior, or what happens after approval. For a zero-parameter authentication tool, this provides basic but incomplete behavioral context.

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 perfectly concise and well-structured: two sentences that directly state the action and its prerequisite role. Every word serves a purpose with no redundancy. It's front-loaded with the core purpose and follows with critical usage guidance.

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 simplicity (zero parameters, no output schema, no annotations), the description is reasonably complete. It explains what the tool does and when to use it. However, for an authentication tool, it could benefit from mentioning what 'connection' enables or typical next steps after calling it. The absence of output schema means the description doesn't clarify what the tool returns upon success/failure.

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?

The tool has zero parameters with 100% schema description coverage (empty schema). The description doesn't need to explain parameters, and it appropriately doesn't mention any. Since there are no parameters to document, this earns a high score as the description focuses on behavior rather than redundant parameter explanations.

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: 'Request connection to Circuitry. Shows permission dialog in Circuitry for user approval.' It specifies the verb ('Request connection') and resource ('Circuitry'), and mentions the user interaction aspect. However, it doesn't explicitly differentiate from sibling 'circuitry.disconnect' or 'circuitry.status' beyond being the initial connection step.

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 provides explicit usage guidance: 'Call this first before using other tools.' This clearly indicates when to use it (as an initial step) and implies it's a prerequisite for other operations. It effectively distinguishes it from alternatives by establishing its role in the workflow sequence.

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