trmnl_complete_photo_selection

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

Annotations already declare readOnlyHint=false, openWorldHint=true, idempotentHint=false and destructiveHint=false, so the safety profile is largely covered. The description adds that it 'changes remote state or starts work' and warns about authorization scope, which is real added context. However, it omits the critical behavioral detail that the required ticket/revision tokens presumably come from trmnl_start_photo_selection and that confirmation is non-idempotent and cannot be replayed.

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 purpose is front-loaded in a short opening clause followed by the endpoint. Two of the three sentences are boilerplate safety text, but they are brief enough not to bloat the definition.

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 mutating, non-idempotent tool with nested objects, no output schema, and two opaque required tokens (ticket, revision) that are undocumented anywhere. Without a statement of where those tokens originate or what the call returns, an agent cannot reliably invoke this tool even though the annotations cover the safety profile.

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 only 33% (just the optional 'profile' field), and the description does not explain the required body fields 'ticket' and 'revision' at all — the two parameters an agent must actually supply. The path template mentions plugin_setting_id but adds nothing the schema doesn't already show.

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 states a specific verb and resource ('Confirm Google Photos selection') and names the exact endpoint (PATCH /api/plugin_settings/{plugin_setting_id}/configuration/photo_selection), so the agent knows precisely what is being mutated. It does not explicitly name the sibling trmnl_start_photo_selection, but the pairing is inferable from the operation name.

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?

'Confirm ... selection' implies this follows a selection started elsewhere, and the sibling list contains trmnl_start_photo_selection, but the description never says to use that tool first or what happens if no selection is in progress. 'Run only within the user-authorized scope' is a generic caution rather than actionable when-to-use guidance.

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