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

Annotations already declare readOnlyHint=false, destructiveHint=true, and openWorldHint=true. The description adds useful context by stating it is app-only, reuses the web write gateway, has validation and budgets, and requires the selected participant token. It still does not explain what is destroyed, whether edits are reversible, or what the payload operations do.

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 short and front-loads the app-only transport context, then adds gateway reuse and token requirements without repetition. Some phrases are opaque, but the structure is efficient and no sentence is pure filler.

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 is a destructive write tool with a nested payload object, 7 largely undocumented parameters, and no output schema. The description provides some operational context, but it is not complete enough for an agent to safely determine how to invoke it or what the payload should contain.

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% across 7 parameters, so the description must compensate but only hints at participant_token. Critical required parameters like operation and payload are unexplained, as are plan, participant_id, and the target participant 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?

The description indicates a write/transport tool for shared web components and mentions saved-plan edits, so the general purpose is inferable. However, it does not specify the concrete operations or payload effects, and it does not distinguish this tool from siblings such as widget_lookup, widget_select_participant, or planner mutation tools.

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 phrase 'for saved-plan edits' implies a usage context, and the token requirement gives a prerequisite. But there is no explicit guidance on when to use this versus widget_lookup, widget_select_participant, or other planner write tools, nor any when-not-to-use guidance.

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