mcp-electron-driver

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 the no-op behavior (useful context) and implies mutation (checking), but does not cover permissions, error handling, or response format. It adds some behavioral insight but leaves gaps for a mutation tool.

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 a single, efficient sentence that front-loads the core action and includes essential behavioral detail (no-op). Every word earns its place with no redundancy or fluff.

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?

For a mutation tool with no annotations and no output schema, the description is minimal but functional. It covers the basic action and a key behavioral trait (no-op), but lacks details on errors, side effects, or return values, leaving room for improvement given the complexity.

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?

Schema description coverage is 67% (2 of 3 parameters described). The description does not mention parameters directly, but it implies the 'selector' parameter's purpose. It adds no syntax details beyond the schema, but with moderate coverage and implied mapping, it compensates adequately.

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 action ('Check a checkbox or radio button') and the target ('matching a selector'), distinguishing it from siblings like 'uncheck' (opposite action) and 'click' (general interaction). It also specifies the no-op behavior for already-checked elements, adding precision.

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 for checkboxes/radio buttons via selectors, with no-op guidance for already-checked states, but does not explicitly mention when to use alternatives like 'click' for non-checkable elements or 'uncheck' for toggling off. It provides clear context but lacks explicit exclusions.

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