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

The annotations declare readOnlyHint=false and destructiveHint=true, so the agent already knows this is a mutation with destructive potential. The description adds useful behavior around saved_template_id seeding and replacement, plus the return value artifact_id, but it does not explain the scope of destructive effects or what may be overwritten.

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 front-loaded with the core purpose and remains reasonably compact despite the long first sentence. “Views are free: no watermark and nothing to unlock” is product context that does not help an agent decide or invoke the tool, keeping it from a 5.

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 five-parameter tool with 100% schema coverage and no output schema, the description covers purpose, inputs, template-seeding behavior, and the returned artifact_id. The main remaining gaps are explicit routing against related tools and a fuller warning about the destructiveHint=true behavior.

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 coverage is 100%, so the schema already documents all five parameters, establishing a baseline of 3. The description adds meaning beyond the schema by explaining that source is the whole view in the view language, spec_version is the library version, title/state are optional, and saved_template_id seeds values while passed values replace them.

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 clear verb and resource: save a view in the view language that renders with live data, with concrete examples like dashboard, Markdown document, feed, and generated emails/images. It is clearly a save/create-view operation, but it does not explicitly distinguish itself from sibling tools such as update_view or show_view.

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?

Usage is only implied by “Save a view the user wants to keep” and by noting that saved_template_id comes from a template saved earlier. It does not state when to use this versus update_view, show_view, list_templates, or save_as_template, nor does it give explicit prerequisites.

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