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

With no annotations, the description carries the full behavioral burden. It discloses the output shape (a complete, runnable HTML page) and that the agent must save and open it, but says nothing about whether the HTML is self-contained, how large it may be, whether it requires prior setup, or any limits on generating pages.

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?

Two short sentences, front-loaded with the output description and followed by the action to take. There is no filler, though the extreme brevity is what creates the coverage gaps rather than a model of efficient completeness.

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 tool with four parameters, low schema coverage, no annotations, and no output schema, the two-line description is substantially under-specified. An agent would not know how to choose noodle/mode values, how to obtain multiple examples, or what the returned page assumes about its 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?

Schema description coverage is only 25% (just the 'example' index), so the description should compensate. It names noodle and mode implicitly and conveys that both are freely selectable, but never explains what a 'noodle' means, what happens when it or mode is omitted, or how 'example' selects among multiple examples — leaving three enum parameters semantically opaque.

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 states a concrete verb+resource: it returns a complete HTML page rendering the requested component. It adds the scoping detail that the page can be produced for a chosen noodle (theme/variant) and mode, which separates it from a source-snippet tool, though it never names a sibling like get_component or get_component_source explicitly.

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?

'Save and open it' is a light usage hint but there is no guidance on when to pick this over the many sibling tools (get_component, get_component_source, get_template, get_noodle_css). Nothing says when to omit vs. supply noodle/mode, or what to do with the result beyond saving it.

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