supabase_get_public_url

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

No annotations are provided, so the description must carry full behavioral disclosure. It successfully notes the public bucket constraint but omits error handling behavior (what happens if the file doesn't exist), return value structure, and whether this operation is idempotent or has any side effects.

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 appropriately brief at two sentences with the purpose front-loaded. Structure is efficient, though the '[UNIFIED]' prefix wastes space without adding semantic value.

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 simple read operation with three parameters and no output schema, the description covers the primary constraint (public buckets) but lacks explanation of the return value—the very thing this tool is designed to retrieve. The 'site' parameter remains unexplained.

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?

With 0% schema description coverage, the description must compensate for all three parameters. It implicitly hints at 'bucket' and 'path' through mentions of 'public buckets' and 'file,' but provides no explanation for the 'site' parameter (likely the Supabase project identifier) or expected formats for any parameter.

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 retrieves a public URL for a file and specifies the critical constraint that it only works for public buckets. However, it includes the '[UNIFIED]' metadata prefix which adds noise, and fails to describe what the tool returns (the URL format).

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 implicit usage guidance by stating 'Only works for files in public buckets,' which signals when the tool will fail. However, it does not explicitly name alternatives for private buckets (e.g., signed URLs) or distinguish when to use this versus supabase_download_file.

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