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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world), yet the description adds substantial content-level disclosure: no transcript/audio, unverified speaker attribution, omitted caller titles/summaries, opaque IDs, and links that don't resolve to a single clip. These prevent false expectations about the payload. It stops short of covering error behavior for an invalid/nonexistent ID.

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?

Four short sentences, all information-bearing, with the core verb+resource front-loaded in the first clause. It reads as a compressed caveat list, which is efficient but slightly list-like rather than flowing prose.

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?

With no output schema, the description carries the burden of describing the return contents, and it does so by enumerating what is and is not available in the clip. Only error/not-found behavior and the meaning of 'canonical original' resolution are left unexplained.

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 coverage is 0% and the single clip_id property has only a regex pattern documented. The description partially compensates by warning that IDs are opaque and require exact match, but it gives no format guidance or indication of where a valid ID originates (e.g., from search results), leaving a real gap.

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 ('Return one historical clip by exact ID') plus the scope caveat of the canonical original mapping, which clearly sets it apart from search_moneytalk and list_moneytalk_episodes (ID lookup vs. browse/search). It never names a sibling explicitly, so differentiation is inferred rather than stated.

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?

'By exact ID' implies this is the wrong tool when you only have topic/date text, and the note that only reviewed topic/date labels are searchable hints the search tool is the alternative. However, there is no explicit when-to-use/when-not statement or pointer to search_moneytalk for discovering IDs.

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