uidf.parse_possible_value

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. The description only says 'Parse', implying a read-like operation, but does not explicitly state whether it is idempotent, safe, or if it has side effects. For a tool with no annotation safety hints, this is insufficient.

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 sentence with no wasted words, achieving conciseness. However, it is too terse to be informative; a balance between conciseness and completeness would be better. The front-loading of the verb is good, but the resource could be clarified.

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 tool has 4 parameters with no schema descriptions, no output schema, and no annotations, the description should compensate by explaining the purpose, parameters, return value, and side effects. It does none of these, leaving the agent with minimal information to decide when and how to invoke this tool correctly.

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%, meaning none of the four parameters (here, state, value, session_id) are documented in the schema. The description also adds no explanation of what these parameters mean, their expected formats, or how they relate to parsing. The property names alone are not self-explanatory in this domain.

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 states a verb ('Parse') and a resource ('user-informed possible value set string'), giving a basic sense of the tool's function. However, the resource is vague ('possible value set' is not defined in context) and it does not differentiate this tool from sibling tools like uidf.set_user_var_value or uidf.list_user_var_values, which also deal with user-defined variables.

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?

There is no guidance on when to use this tool versus alternatives. The description does not mention prerequisites, typical use cases, or when not to use it. Given the number of sibling tools, this lack of usage direction is a significant gap.

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