photos_create_album

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

Annotations only include destructiveHint: false, so the description carries the transparency burden. It discloses authentication requirements, the exact creation path (/albums/<name>), the 'not a path' parameter constraint, and the duplicate-name failure behavior—all beyond the annotation's minimal safety signal.

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?

Two sentences, front-loaded with the primary action, and every clause adds value: auth, parameter format, creation location, and failure condition. No filler or redundancy.

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 one-parameter create operation with no output schema, the description covers all essentials: what it does, how to pass the parameter, where it lands, failure mode, and authentication. It's fully complete for 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 coverage is 100% with a description for 'name', but the tool description adds valuable nuance: 'Pass the album name (not a path)' and explains the resulting path. This goes beyond the schema's example and non-empty constraint, enriching the parameter's meaning.

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+resource ('Create a new empty photo album in Proton Photos') and clearly distinguishes from siblings like photos_list_albums and photos_delete_album. It also specifies 'empty' and 'new' to disambiguate from add/remove operations.

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?

Provides clear context: requires authentication, expects a name not a path, and fails on duplicates. It doesn't explicitly name alternatives, but the context makes it obvious this is the creation tool among the sibling list. Slightly short of explicit when-not guidance.

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