Judge0 CE MCP Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Get statuses' reveals nothing about whether this is a read-only operation, if it requires authentication, what rate limits apply, what format the output takes, or any side effects. It fails to provide any behavioral context beyond the minimal implication of retrieval.

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 ('Get statuses.'), which could be efficient if it were informative, but here it's under-specified rather than appropriately brief. It's front-loaded in the sense that it's only one sentence, but that sentence fails to convey necessary information, making it feel incomplete rather than well-structured.

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 lack of annotations and output schema, the description is incomplete for a tool that likely retrieves status information. It doesn't explain what 'statuses' refer to, what the return values might be, or any behavioral traits. While the parameter situation is simple (0 params), the overall context demands more clarity about the tool's purpose and output to be useful.

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 0 parameters with 100% coverage, meaning there are no parameters to document. The description doesn't need to compensate for any gaps, so it meets the baseline expectation. While it doesn't add parameter-specific details (as there are none), it doesn't detract from the schema's completeness.

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 'Get statuses' is a tautology that essentially restates the tool name 'get_statuses' without adding meaningful specificity. It doesn't clarify what kind of statuses (submission statuses? system statuses?), what resource they belong to, or what scope is involved. While it includes a verb ('Get'), it lacks the specificity needed to distinguish this tool from its siblings like 'get_a_submission' or 'get_a_batched_submission'.

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. There are no contextual hints, prerequisites, or comparisons to sibling tools (e.g., whether this retrieves statuses for submissions, batches, or something else). The agent receives no help in determining appropriate usage scenarios or exclusions.

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