setStickerKeywords

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

With no annotations, the description must carry the behavioral transparency burden. It discloses that the operation mutates an existing sticker, requires bot ownership of the sticker set, and returns True on success. However, it omits failure behavior and the important default behavior when 'keywords' is omitted (e.g., whether existing keywords are cleared).

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 concise and well-structured: action first, then ownership prerequisite, then return value. Each sentence contributes useful information without redundancy or filler.

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?

The description covers the core purpose, a key prerequisite, and the success return value, but with no output schema and no annotations, it leaves notable gaps such as what happens on failure and the effect of omitting the optional 'keywords' parameter. It is adequate for a simple tool but not fully complete.

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 100%, so the schema fully documents both parameters, including the 0-20 keyword limit and 64-character total length. The description does not add meaning beyond naming 'search keywords', so the baseline score of 3 is appropriate.

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 states the action ('Change search keywords') and the resource ('a regular or custom emoji sticker'), which is specific enough to distinguish it from sibling sticker-editing tools by attribute. However, it does not explicitly name or contrast any sibling tools, so it stops short of the strongest differentiation.

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 gives clear usage context: it applies to stickers belonging to a sticker set created by the bot, which is an important precondition. It does not explicitly mention alternatives or when not to use this tool, but the action and target resource make the primary use case evident.

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