edit_list

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

No annotations provided, so description carries full burden. It only states editing metadata and clearing description, but lacks disclosure about authentication requirements, rate limits, error conditions, or side effects beyond the stated edits.

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?

Description is extremely concise and well-structured: one-line purpose, usage constraint, then parameter list. No unnecessary words; every sentence adds value.

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 annotations and presence of output schema, description adequately covers parameter usage and main constraints. Missing error scenarios (e.g., when list does not exist) but otherwise complete for a simple metadata edit tool.

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?

Descriptions for each parameter add meaning beyond schema: clarifies list_id is required, explains empty string clears description, and defines boolean semantics for is_private. Schema coverage is 0%, so description compensates well.

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?

Description explicitly states 'Edit a Twitter List's metadata', clearly identifying the verb (edit) and resource (Twitter List's metadata). It distinguishes from siblings like create_list and get_list.

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?

Provides clear constraints: at least one of name, description, or is_private must be provided, and empty string for description clears it. However, no explicit comparison to alternatives like add_list_member or create_list.

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