Node Dev 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 of behavioral disclosure. 'Show commit log' implies a read-only operation, but it doesn't specify aspects like output format, pagination, error handling, or any constraints (e.g., repository state). This is a significant gap for a tool with potential complexity.

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 extremely concise with 'Show commit log', a single phrase that front-loads the core purpose without waste. It's appropriately sized for a simple tool, though this brevity contributes to gaps in other dimensions.

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 no annotations and no output schema, the description is incomplete. It doesn't address behavioral traits, usage context, or return values, which are crucial for an agent to invoke the tool effectively. The simplicity of the tool doesn't compensate for these omissions.

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 input schema has 100% description coverage, with the 'limit' parameter well-documented. The description adds no additional meaning beyond the schema, as it doesn't explain parameter usage or context. This meets the baseline of 3 since the schema handles the heavy lifting.

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 'Show commit log' clearly indicates the tool displays commit history, which is a specific action. However, it doesn't distinguish this from sibling tools like 'vcs_diff' or 'vcs_status' that also relate to version control, making it vague about its unique scope. The purpose is understandable but lacks differentiation.

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 no guidance on when to use this tool versus alternatives. It doesn't mention scenarios like reviewing history, debugging, or comparing with other VCS tools, nor does it exclude use cases. This leaves the agent without context for selection among siblings.

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