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

Annotations already cover read-only, idempotent, open-world, and non-destructive behavior. The description adds the claim that it returns status in 'every market' and includes official list sources, which provides useful scope and provenance context. However, it does not disclose error behavior, data freshness, or what happens when an ingredient is not 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?

The description is a single, information-dense sentence with no redundant filler. The opening phrase 'One ingredient, and its status in every market' is slightly indirect but still communicates the core purpose up front. Overall it is concise and efficient.

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 one-parameter read-only tool with an output schema, the description provides adequate context about the returned data, including the scope and content of the record. It does not cover edge cases or input formats, but the simple interface and output schema mitigate the need for more detail.

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 define the single 'ingredient' parameter. It clarifies cardinality by saying 'One ingredient' but does not specify whether input should be an INCI name, common name, alias, or any exact format. This leaves ambiguity about acceptable inputs.

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 identifies the resource as an ingredient record and states the output: status per market, INCI name, aliases, and per-rule-set restriction/listing details. It is specific enough to infer its purpose, but it does not explicitly differentiate from similar siblings like get_market_status or get_availability.

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 focuses entirely on what the tool returns, with no guidance on when to use this tool versus alternatives. It does not state when to select this tool, such as needing regulatory compliance data, nor does it mention any exclusion criteria or preferred sibling.

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