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

Annotations (destructiveHint=false, readOnlyHint=false) already flag it as a non-destructive write, and the description adds meaningful context beyond them: it runs without a confirmation prompt, it is reversible because add_place puts the entry back, and it requires the user's Cotlet API key with app access. The reversibility and auth notes are genuinely useful and consistent with the annotations.

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 action is front-loaded ('Remove a place from a day or list'), followed by scoping, ID guidance, reversibility, and auth. 'Removes one entry from the itinerary' mildly restates the opener, but overall it is compact and well-ordered.

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 mutation with no output schema and safety carried by annotations, the description covers purpose, ID provenance, immediate-execution behavior, reversibility, and auth. Only the post-removal result state is unstated, which is minor.

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 coverage is 100%, so both parameters are already documented (block_id explicitly as 'Place entry ID from get_trip'). The description's 'Use block_id from get_trip' essentially restates the schema and adds no syntax or format detail; baseline 3 applies when the schema carries the load.

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 gives a specific verb (remove) and resource (a place / one entry from the itinerary), with the scope clarified as 'from a day or list.' It is unambiguous which operation it performs and does not name a confusing sibling, though routing against other Wanderlog removal/listing tools is left implicit.

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?

It implicitly says when to use it by tying the block_id to get_trip and framing removal as the counterpart to add_place, but gives no explicit when-to-use-vs-alternative or when-not guidance. Adequate but inferential.

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