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

No annotations are provided, so the description carries the full burden, and it discloses almost nothing behavioral. It does not say whether the spectrum is read from a file or supplied another way, whether a reference library or api_key is required, whether results are ranked, or what happens when no match is found.

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?

A single front-loaded sentence with a colon-delimited output list; every word is doing work and the action is stated first. It is terse to the point of under-specification, but there is no filler to trim.

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?

An output schema exists, so return values need not be explained, but for a three-parameter tool with zero annotation coverage and 0% schema description coverage the definition is far too thin. Nothing explains the auth/API-key requirement, the optional library override, or the input format, leaving the agent unable to call it correctly without guessing.

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% across three parameters (path, api_key, library_path), and the description supplies no parameter-level information. The phrase 'unknown IR spectrum' only loosely implies that 'path' points to a spectrum file; the roles of api_key and library_path are completely undocumented.

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?

States a specific verb and resource ('Identify unknown IR spectrum') and enumerates the outputs it produces (functional groups, substance class, contaminants). It is clear what the tool does, but it never distinguishes itself from IR siblings such as covair_annotate, covair_auto_analyze, or covair_predict_ir.

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 when-to-use guidance is given: nothing says when identification is preferable to annotation, verification, or quality checking, nor when a full pipeline (covair_auto_analyze) should be used instead. The agent must infer usage entirely from the tool name.

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