Prepare portable version export

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

Annotations already indicate readOnlyHint=true and destructiveHint=false, so the tool is safe. The description adds valuable behavioral context: the download URL expires in five minutes and the source is delivered via an external download route, not embedded in MCP model output. This goes beyond what annotations provide, though it could mention specific authentication or rate-limit implications.

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 extremely concise: two sentences with no filler. The first sentence states the core action and result, the second adds a crucial behavioral note. Every word earns its place, and the most important information is front-loaded.

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?

Given the low complexity (two UUID parameters) and the absence of an output schema, the description partially covers what is returned (a five-minute download URL). However, it does not explicitly specify the output format (e.g., JSON with a 'url' field) or mention error conditions, prerequisites, or what happens on failure. It is adequate but leaves some ambiguity for an agent needing to handle the result.

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 full responsibility for clarifying parameters. It mentions 'exact saved version' (implying version_id) and implicitly requires project_id for context, but it does not explain the meaning of either parameter, their expected format beyond UUID, or how they affect the export. The description adds minimal semantic value over the raw schema.

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's purpose: 'Create a five-minute download URL for an exact saved version.' It uses a specific verb-resource pair and distinguishes from siblings like 'prepare_artifact_download' (for individual artifacts) and 'create_version_share_link' (likely for persistent sharing). The additional note about source delivery reinforces the tool's unique value.

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 does not explicitly state when to use this tool versus alternatives or mention prerequisites. It implies usage for exporting a complete version via a temporary URL, but no 'when not to' or comparison with sibling tools like 'create_version_share_link' or 'prepare_artifact_download' is provided. The guidance is implicit rather than explicit.

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