get_render_status

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

With no annotations provided, the description must disclose behavioral traits, but it only states that the tool 'Check[s]' availability and returns a dictionary. This implies a read-only operation, but it does not explicitly mention whether any state is modified or if there are side effects. The example and return type add some detail, but the behavioral scope is minimal.

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 well-structured with a clear purpose, an important note, return description, and an example. The example is somewhat redundant but does not hurt clarity. The 'IMPORTANT' note is directive but concise, and the overall length is appropriate for a simple status check tool.

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 (0 parameters, output schema present), the description covers the essential aspects: purpose, return type, and an example. It could add context about when to use it (e.g., before rendering), but the existing content is sufficient for a basic status tool. The note about not writing scripts adds broader context to the MCP environment.

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 0 parameters, and the schema coverage is 100% (empty set). According to the rubric, a 0-parameter tool gets a baseline score of 4. The description adds an example call with no arguments, which aligns with the schema and clarifies usage without needing parameter details.

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 function: 'Check if manimgl and OpenGL are available for rendering.' It uses a specific verb ('Check') and resource (manimgl/OpenGL availability), and this purpose distinguishes it from sibling rendering tools like render_scene. The additional note about not using standalone scripts reinforces its role within the MCP tool suite.

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 a general directive to 'Always use this MCP tool for scene operations' and to not write standalone scripts, but this is not specific to get_render_status. It does not explicitly state when to call this tool (e.g., before rendering) or contrast it with sibling tools. The guidance is implied but not targeted, earning a mid-range score.

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