tickets_get_attachment_link

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

With no annotations provided, the description carries the burden of behavioral disclosure. It explains the size-dependent behavior, the JSON-only request behavior, and the reasoning that binary content is not useful over MCP. This is meaningful transparency beyond the schema, though it does not cover aspects like error handling or authentication expectations.

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 compact and front-loaded with the core purpose. The additional sentences about size limits and JSON formatting earn their place by explaining behavior an agent needs to know before calling the tool. There is no filler or redundant restating of the schema.

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-oriented attachment fetch tool with an output schema available, the description covers the main behavioral quirk (size-based response format) and the MCP-specific constraint. It does not mention possible failure modes or authentication requirements, but those are less critical given the schema and the straightforward get-like nature of the tool.

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 baseline is 3 even though the description itself does not explain parameters. The size-based behavior is relevant to the unzip parameter, and file_uid is sourced from tickets_list_attachments, but both are already documented in the schema. The description adds context rather than parameter-level detail.

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 opens with a specific verb and resource: 'Fetch metadata or a download link for an attachment.' It also clarifies that raw bytes are not returned, which separates it from file-transfer or upload/download sibling tools. This gives an agent enough to know what the tool is for without inspecting the schema.

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 clear behavioral context: attachments under 5MB may be returned inline, while larger ones produce a cloud-storage link. It also explains that the tool always requests JSON, so callers should expect metadata or a link rather than binary content. It does not explicitly name alternatives or state when to prefer this over tickets_list_attachments, but the usage context is strong enough to guide selection.

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