_get_sketch_data

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

No annotations are provided, so the description carries the full disclosure burden. It does not state that this is a read-only operation, whether it mutates any state, permission requirements, or how large/complete the returned definition is.

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?

One short, front-loaded sentence with no padding. Brevity is appropriate for a single-parameter getter, though the brevity also costs it guidance.

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 simple getter the definition is minimally adequate, but with no output schema and no annotations it never explains what 'full sketch definition' contains or whether the result is safe to call repeatedly. It leaves the agent guessing about the return payload.

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 a single required parameter and 100% schema description coverage, the schema already documents sketchId as 'ID of the sketch to fetch'. The description adds no format or sourcing detail (e.g. where the ID comes from), so baseline 3 applies.

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?

Specific verb ('Get') plus resource ('full sketch definition'), with a hint of the consumer ('rendering in the preview app'). It does not differentiate from nearby siblings such as open_sketch, get_editor_state, or preview_sketch, so an agent must infer which read path to take.

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?

There is no statement of when to use this versus the many sibling retrieval tools (open_sketch, get_editor_state, preview_sketch, list_sketches). The 'for rendering in the preview app' clause implies a context but names no alternative or exclusion.

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