simulate_facebook_event

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

With no annotations, the description carries the behavioral disclosure burden. It usefully reveals that the event is signed with X-Hub-Signature-256 and that 'app' overrides set_app for this call. However, it does not disclose expected outcomes, side effects, response behavior, or validation behavior for payload/event_type.

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 and front-loaded: the first sentence states the primary purpose, and the second adds essential parameter context. No wasted words or redundant information.

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?

This tool has no annotations, no output schema, and zero schema description coverage, so the description must be more complete. It covers the core action but omits meaning for payload and event_type, any usage guidance, and any indication of expected results or errors.

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 for all three parameters. It only explains 'app' (target and override behavior). The 'payload' and 'event_type' parameters remain undefined in both the schema and the description, leaving important semantics missing.

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 a specific action ('Fire a Facebook Graph API webhook event'), the target ('the app's registered Facebook webhook'), and a key technical detail (signed with X-Hub-Signature-256). This differentiates it from sibling tools like simulate_stripe_event or trigger_webhook by naming the Facebook-specific context.

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 does not explicitly state when to use this tool versus alternatives. It implies use for Facebook webhook simulation and mentions the target app, but provides no exclusions, prerequisites, or comparisons with sibling simulation tools.

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