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

Annotations already declare readOnlyHint/destructiveHint, so safety is covered. The description adds real behavioral context beyond that: pagination behavior (25 default, up to 100) and an authentication requirement (Cotlet API key with access to this app). It does not, however, describe ordering or filter semantics.

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?

Front-loaded with purpose, then usage, then auth; every sentence carries information. The leading 'Bokio:' fragment slightly echoes the title, a minor redundancy rather than a defect.

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?

No output schema exists, but the description conveys the returned row structure, pagination, and the auth prerequisite, which is enough to call the tool correctly. It omits filtering/date-range semantics and ordering, a small gap.

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 page/page_size/date_from/date_to are already documented. The description only restates the page-size default (25, up to 100), which duplicates the schema and adds no new meaning. Baseline 3 is appropriate when the schema does the heavy lifting.

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 (Lists) and resource (journal entries of the company with their rows), and even characterizes the record shape (date, title, debit/credit rows). An agent can distinguish this read tool from the sibling bokio_create_journal_entry without opening either schema.

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?

Gives a concrete use case ('check whether an entry for the month is already booked before creating another'), which implicitly routes the agent relative to the create sibling. It stops short of naming bokio_create_journal_entry explicitly, so it is clear context rather than full when/when-not routing.

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