watchlist_add_bulk

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

With no annotations provided, the description carries the burden of disclosing behavior. It reveals that adds are performed sequentially and results are reported per symbol, which implies partial success is possible. However, it omits details about duplicate handling, read-back confirmation, or any side effects, which are only partially covered in the schema description.

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 concise sentence with the action front-loaded. It wastes no words and communicates the core behavior efficiently.

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?

No output schema is provided, and the description's mention of 'report per-symbol results' is vague about the exact response structure. The tool also lacks any guidance on error handling, limits, or potential side effects, which leaves an agent uncertain about how to interpret results or handle failures.

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 100%, and the schema property description thoroughly explains the 'symbols' parameter including format, examples, duplicate collapsing, and success condition. The tool description adds no additional parameter meaning, so the baseline of 3 applies.

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 names a specific action (add), the resource (multiple symbols), and the execution mode (sequentially) with a clear outcome (per-symbol results). It distinguishes itself from watchlist_add (single) and watchlist_remove_bulk (removal) without needing to open schemas.

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 explicit statement on when to use this tool versus watchlist_add or when not to use it. The word 'multiple' implies it is for bulk additions, but the description does not name alternatives or conditions, leaving usage to inference.

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