Clink 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. It does reveal some important behavioral traits: the validation rules for dependencies (same-milestone deps must reference earlier checkpoints, cross-milestone deps are validated for cycles) and the requirement for full URLs for git references. However, it doesn't disclose whether this is a destructive operation, what permissions are needed, how errors are handled, or what the response format looks like.

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 sized and well-structured with a clear opening sentence followed by detailed parameter explanations. Every sentence serves a purpose, though the parameter documentation could be slightly more concise. The information is front-loaded with the core purpose stated first.

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 complexity (8 parameters, mutation operation) and the presence of an output schema, the description is reasonably complete. It thoroughly documents all parameters, explains validation rules, and since an output schema exists, it doesn't need to describe return values. The main gap is the lack of behavioral context about permissions, error handling, and workflow constraints.

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 0% schema description coverage, the description provides excellent compensation by explaining all 8 parameters in detail. It clarifies the meaning of 'order' (1-based numbering), explains the complex 'depends_on' format with examples for both same-milestone and cross-milestone references, and specifies that git URLs must be full URLs. This adds substantial value beyond what the bare schema provides.

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 specific action ('Update') and the resource ('checkpoint'), listing exactly which fields can be modified (title, description, dependencies, git references). It distinguishes this from sibling tools like 'add_checkpoint' and 'delete_checkpoint' by specifying it's for modifying existing checkpoints rather than creating or removing them.

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 prerequisites (e.g., checkpoint must exist), doesn't specify when to use 'update_checkpoint' versus 'complete_checkpoint' or 'delete_checkpoint', and offers no context about permissions or workflow constraints. The agent must infer usage from the tool name alone.

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