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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=false and destructiveHint=false, so the safety profile is covered. The description adds genuine value by forecasting the content of the response (photos needed, roles, requirements, deliverable, page), which matters since there is no output schema. It stops short of return format or how the page reference is expressed.

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 front-loaded sentence that leads with the action, then the contents. It is dense but each clause maps to a distinct piece of the returned payload; slightly list-like phrasing rather than wasted space.

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 read-only single-parameter lookup with no output schema, the description tells the agent what it will get back and for which template, which is the essential information. Only minor gaps remain: no note on what happens for an invalid template name and no explicit sibling routing.

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 100%, so the single 'template' parameter — including its enumerated name list — is fully documented in structured data. The description only reinforces that it takes one template ('one template's meme video'), adding no syntax or matching rules beyond the schema. Baseline 3 is appropriate.

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?

States a specific verb and resource: it returns step-by-step instructions for making one named template's video, and enumerates the payload (photos per person with roles, photo requirements, output, page). It scopes itself to a single template, which separates it from broad reference siblings like get_faq, though it never names an alternative directly.

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 implied rather than stated — an agent can infer it should call this when a user asks how to make a particular template's video. There is no explicit when-to-use/when-not, and no routing guidance versus get_example_prompts, list_templates, or recommend_settings.

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