manage_watchlist

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

No annotations are provided, so the description carries full burden. It discloses the local storage path and the action behavior (get returns live quotes), which is helpful. However, it does not specify side effects of add/remove/clear, error handling, or any limitations (e.g., max symbols). The description adds some transparency but not comprehensive behavior details.

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 extremely concise with two sentences. It front-loads the primary purpose (personal watchlist stored locally) and then succinctly lists all actions. No fluff or redundancy.

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 no output schema and no annotations, the description is incomplete. It does not specify which parameters are required for each action, the return format for add/remove/clear, or any constraints. For a tool with two parameters and multiple actions, this leaves critical gaps that an agent would need to guess.

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%, so the description must compensate. It explains the action parameter values but does not clarify which actions require symbols_list (e.g., add and remove presumably need it, clear does not). It also does not elaborate on the format of symbols beyond the schema's array of strings. The description adds minimal value beyond the schema for symbols_list.

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 tool manages a personal watchlist stored locally, with a specific set of actions (get, add, remove, clear). It distinguishes itself from sibling tools by focusing on personal watchlist management rather than market data retrieval, making its purpose unambiguous.

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 implies usage for personal watchlist operations but does not explicitly state when to use it versus alternatives like search_stocks or get_stock_quote. It lacks exclusions or guidance on context, though the nature of the tool makes its use case fairly obvious. No direct mention of alternatives.

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