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

With no annotations provided, the description carries the full behavioral burden and does not meet it. It never indicates whether the listing must currently be saved, whether the operation is idempotent, what happens if the id is absent, or whether authentication is required for a mutation.

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 words with zero redundancy and a front-loaded verb, but the brevity leans toward under-specification rather than efficient concision. Nothing extra is said, yet nothing necessary is said either.

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 mutation tool with no annotations and no output schema, the description should disclose at least the effect of the operation and any error conditions. It explains none of this, leaving the agent without enough context to call it correctly in edge cases.

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 100%, so the single 'id' parameter is already documented as the Dayplay listing id. The description adds no syntax, format, or referencing detail beyond the schema, so the baseline of 3 applies.

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 verb 'Remove' plus the resource 'save' conveys the basic action, and the tool name unsave_listing reinforces it. However, it never states that the target is a listing or which record, and it does not differentiate itself from siblings like save_listing or unmark_going. Purpose is inferable but vague.

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 when-to-use guidance, no prerequisites, and no mention of alternatives such as save_listing or list_saves. The agent gets no help deciding between this and the other save/going-related tools.

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