get_twitterapi_url

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

No annotations are provided, so the description must disclose behavioral traits. It states that content comes from an offline snapshot and that live fetching is possible but restricted to allowed hosts. However, it does not detail error handling, authentication, or what happens if live fetch fails. Adequate but not fully transparent.

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: two sentences plus a 'USE THIS WHEN' and 'RETURNS' section. Every sentence is purposeful, front-loaded, and wastes no words.

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 the tool's low complexity (2 params, 1 required, output schema exists), the description provides sufficient context for basic usage. It covers purpose, when to use, and parameter details. However, it could mention more about the output or potential errors, but the output schema likely covers that.

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?

Input schema coverage is 100%, so baseline is 3. The description adds value by providing examples for the 'url' parameter and clarifying the behavior of 'fetch_live' (restricted to allowed hosts). This helps the agent understand usage beyond the schema.

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 verb 'Fetch' and the resource 'URL' with a specific context of 'TwitterAPI.io or docs.twitterapi.io'. It distinguishes from sibling tools like get_twitterapi_endpoint or search_twitterapi_docs, as this tool is for fetching full content of a specific link.

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 explicitly provides a 'USE THIS WHEN' section: 'You have a specific link and want its full content.' It also hints at alternatives (fetch_live for missing content) but does not explicitly mention when not to use it or compare with siblings. Clear positive guidance, but lacking explicit exclusion criteria.

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