create_event

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

No annotations are provided, so the description carries full burden. It explicitly declares that it's a write operation and lists required permission. This is good but could add more details about behavior (e.g., idempotency, error scenarios). The examples provide context but don't fully cover all behavioral traits.

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 with two sentences plus a bolded line. It is front-loaded with the purpose. The examples are somewhat repetitive, but there is no fluff. Could be slightly more streamlined, but overall effective.

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 presence of an output schema (context says true), the description does not need to explain return values. It covers purpose, permission, and usage examples. However, it lacks details on constraints (e.g., past events allowed, business account requirement) and could be more thorough for a write operation.

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 baseline is 3. The description does not add any additional parameter meaning beyond the schema. The examples imply parameter usage but do not explicitly explain them. Thus, it adds minimal value over 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 'Create an upcoming event on your Instagram profile.' The verb 'create' and resource 'event' are explicit. It distinguishes from sibling tools like 'list_events' and other write operations (e.g., 'publish_photo') by indicating the specific action of event creation.

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 provides concrete examples of when to use the tool: 'Great for hospital health camps, free checkup days, AI workshops, webinars.' It also notes that it's a write operation requiring 'instagram_manage_upcoming_events permission.' However, it does not explicitly state when not to use it or compare to alternatives, slightly lowering the score.

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