get_rank_table_czce

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

Annotations already declare readOnly/idempotent/openWorld/non-destructive, so the safety profile is covered. The description goes further by disclosing the upstream source URL and, importantly, the full shape of the returned record fields — meaningful when no output schema exists.

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?

It is a raw docstring: title, URL, note, :param, :return, then a long field-by-field listing. The purpose is front-loaded and the field list earns its place given no output schema, but the structure is not tuned for an agent and mixes languages and markup.

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-optional-parameter, read-only data fetch with no output schema, the definition covers returns in detail and the parameter fully, and annotations cover safety. The notable gap is the absence of any guidance on when to prefer this over the other exchange rank-table tools.

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% (only a string 'date' with a default), so the description carries the burden and does so well: it lists three accepted formats (YYYY-MM-DD, YYYYMMDD, datetime.date) and states that empty means today. That is the essential format/default behavior an agent needs.

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 resource: CZCE top-20 member holding rank detail, and adds the caveat that the exchange publishes both variety-level and contract-level rankings. An agent knows this is CZCE holding-rank data, but the description never names the sibling alternatives (get_rank_table, get_dce_rank_table, get_cffex_rank_table, futures_dce_position_rank) to sharpen selection.

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, when-not, or alternative-tool guidance is given. The note about the exchange publishing both variety and contract ranks is context, not a usage rule. With dozens of near-identical rank-table siblings, the definition leaves routing entirely to inference.

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