uri_to_base62

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

With no annotations provided, the description carries the full behavioral burden and does disclose two important behaviors: the operation happens locally and returns null when no extractable ID exists. It does not detail edge cases like malformed URLs or behavior across all URI kinds, but the core behavioral contract is visible.

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 a single front-loaded sentence with no filler. It states the action, the input, the output, the locality, and the null behavior efficiently.

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 local utility with two well-documented parameters, the description covers the essential behavior: input forms, output type, and null case. It is slightly incomplete in not clarifying how response_format affects the output, but the schema already documents that parameter.

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 parameters are already well documented in the schema. The description adds general context about the output but does not materially extend the meaning of the uri or response_format parameters beyond what the schema provides.

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 uses a specific verb ("Strip") and a specific resource (a Spotify URI/URL down to its raw base62 ID string), which clearly identifies the tool's function. It also distinguishes it from nearby URI utilities by emphasizing the extraction of the raw base62 ID and the local, non-network nature of the operation.

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 no explicit guidance about when to use this tool versus alternatives such as extract_spotify_id, format_spotify_uri, or normalize_spotify_uri. The phrase "locally" implies a lightweight local transformation, but no alternatives or exclusion criteria are stated.

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