Create share link

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds that the link is time-limited and pre-signed, which is useful context, but it does not disclose expiration behavior, auth requirements, or any side effects beyond the annotation hints. Given the annotation coverage, this is adequate but not rich.

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 two sentences, with the primary purpose in the first sentence and a helpful alternative in the second. No wasted words; every part earns its place.

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, the description effectively implies the return value (the pre-signed URL) by calling it 'a pre-signed URL suitable for sharing.' It covers the core behavior, required parameter, and provides an alternative path for advanced use. Minor gap: expiration details aren't specified, but the tool is simple and the description is sufficient for selection and invocation.

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 parameters are already well-documented. The description mentions that bucketName is required and repeats the schema's purpose of filePath, but adds no new meaning beyond the schema. Baseline 3 is appropriate since the schema carries the load.

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 states the tool creates a shareable, time-limited pre-signed URL for a file, using the verb 'Create' with a specific resource (link) and scope (file). It distinguishes from siblings like download_file and upload_file by focusing on share-link generation, and mentions the dashboard as an alternative for richer management.

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 provides clear context: it is for creating simple time-limited share links and requires the bucket name. It also gives an explicit alternative (CloudSee dashboard) for richer share management, though it does not explicitly state when not to use this tool or compare to sibling tools directly.

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