project_set_metadata

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

With no annotations, the description carries the full burden and does well: it discloses that non-empty fields are written, empty strings are ignored (preserving existing values), and repeat calls overwrite previous values. It also reveals the cross-format tag embedding behavior, a non-obvious side effect.

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 well-structured: a one-sentence summary, a short explanatory paragraph, and a bulleted Args list. Every sentence adds information, and the most important behavior (non-empty fields written) appears first.

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 absence of annotations and output schema, the description covers core behavior well, including edge cases like empty-string handling and overwrites. Minor gaps remain, such as explicit notes on return values or the effect of calling with all fields empty, but those are inferable from the described semantics.

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's Args list is essential. It provides concise but meaningful definitions for all 10 parameters (e.g., 'ISRC code', 'Year / date'), adding semantics absent from the raw schema. The definitions are adequate, though they could be more detailed.

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 'Set project render metadata fields,' using a clear verb and resource that distinguishes it from sibling tools like project_get_metadata and project_set_notes. The scope is unambiguous and specific to metadata tagging.

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?

No explicit when-to-use or alternative guidance is given, but the name and opening sentence imply its role as the setter for project metadata. The description focuses on mechanics (non-empty behavior, tag formats) rather than when to choose this over alternatives, so usage is only implied.

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