Retrieve acknowledgements

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so the safety profile is fully covered by structured data. The description's only additive behavior context is the 'current session' scoping, which is useful but thin; it says nothing about what an acknowledgement represents or how the response is shaped.

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?

It is short and front-loaded, but the first line is a verbatim restatement of the title and the second sentence largely paraphrases it. The only genuinely new content is 'for the current session' and the endpoint/tag line, so roughly half the text is redundant.

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?

With no parameters and rich annotations, the structural burden is low, but there is no output schema and the description never explains what a sync acknowledgement contains or why an agent would want it. For an obscure internal sync endpoint, that domain context is the missing piece.

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?

The tool takes zero parameters, so there is nothing for the description to disambiguate and the baseline is 4. The description correctly implies no input is required.

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 (retrieve) and resource (synchronization acknowledgments), plus a scope qualifier ('for the current session'). It does not name or contrast itself with the obvious siblings immich_send_sync_ack and immich_delete_sync_ack, so differentiation is left to the reader.

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?

There is no guidance on when an agent should call this versus send_sync_ack, delete_sync_ack, or the broader sync stream. No prerequisites, no mention of when the result is relevant. The 'current session' phrase implies a context but does not instruct.

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