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

readOnlyHint=true already tells the agent this is a safe read. The description adds scope context ('bank payments in and out') but says nothing about pagination defaults, the limit ceiling, or that count_all changes the response shape. Moderate added value on top of 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?

Two economical sentences: purpose and scope first, filter dimensions second, API mapping last. No filler or redundancy.

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 read-only, zero-required-parameter list tool with no output schema, the description covers what is returned and what can be filtered, which is the bulk of what an agent needs. It could be slightly stronger by noting paging behavior, but nothing critical is missing.

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 every parameter is already documented with format hints (ISO 8601, 1-1000 limits, embed syntax). The description only groups the filter family at a high level, adding no new semantics beyond the schema, so baseline 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?

Specific verb (List) plus resource (check-account transactions), with a clarifying gloss 'bank payments in and out' and a summary of the filter dimensions. It is clearly distinguishable from siblings such as sevdesk_list_check_accounts and sevdesk_get_check_account_balance.

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?

The description implies usage by enumerating filter dimensions, so an agent can infer this is the read path for transaction listings. However, it never states when to prefer it over related tools (e.g. balance or account listing) nor any exclusions or prerequisites.

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