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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile is covered. The description adds useful behavioral context beyond that: events are content-free/bounded and the call will not mutate publishing state. It does not describe where events go or how failures are surfaced, keeping it below 5.

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?

Three short sentences, no filler, with the core action front-loaded and the disambiguation and audience following. Every sentence adds distinct 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?

For a two-parameter, simple tool with an output schema present (so returns needn't be explained), the description covers purpose, non-mutation, and intended caller. The main remaining gap is that the parameters are undocumented in both schema and description, but the overall picture is sufficient to call it correctly.

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 carry parameter meaning and it does not. It conveys only that payloads are 'content-free' but never explains the 'event' enum values or the meaning/format of 'studioOperationId'. The agent gets no help interpreting the two required fields.

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?

States a specific verb and resource ('Record ... panel event') and immediately bounds the scope ('bounded, content-free, client-reported'). It also disambiguates from the sibling scheduling/publishing tools by explicitly denying 'approve, schedule, or publish' behavior, so an agent can tell what this is without opening the schema.

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 context and exclusions: it is diagnostics recording, must not be used to approve/schedule/publish, and is 'Intended only for the app UI.' This tells the agent when it applies, but names no alternative tool and gives no explicit trigger conditions, so it stops short of the top band.

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