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

The description adds behavioral context beyond the readOnlyHint/destructiveHint annotations: it reveals that the image links are time-limited and that the tool refreshes them when expired. This is useful and consistent with the annotations, since renewal appears to be a non-destructive read-like operation.

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 short, front-loaded with the scope restriction, and has no filler. The German and English versions are near-duplicates, which is a minor redundancy, but it improves accessibility without bloating the text.

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 no output schema, 0% parameter coverage, and two parameters including a mysterious versionId, the description is too sparse. It does not explain what the agent should do with the result, what versionId controls, or what qualifies as the 'interactive template card'.

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 0%, so the description bears the burden of explaining the parameters. It never mentions templateId or versionId, and versionId is left completely unexplained. The word 'Vorlagenseiten' weakly implies that templateId identifies the template, but that is not enough for correct invocation.

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 identifies the action ('erneuert die ... Bildlinks', renews image links), the resource ('Vorlagen-Karte', template card), and the narrow scope ('Nur fuer die interaktive Vorlagen-Karte'). This makes it readily distinguishable from sibling page-URL tools like approval_page_urls_app and letter_page_urls_app.

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 gives a clear use condition: use it only for the interactive template card and only when older image links have expired. It does not explicitly name alternative tools or when not to use it beyond the 'Nur fuer' scope restriction, but the condition is specific enough for an agent to decide.

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