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

readOnlyHint=true already covers the safety profile, so the bar is lower; the description adds that results are paged, which is meaningful operational context. It does not disclose default page size, sort order, or the maximum page window, which matter for paging behavior. Useful but thin given how much the schema already carries.

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 short fragments with zero filler and the core purpose front-loaded. It is arguably over-compressed: the fragments are efficient but the terseness is part of why usage and behavior detail are missing.

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 zero-required-parameter list tool with full schema coverage and a readOnly annotation, this is minimally adequate. An agent still lacks the relationship between tasks and time entries (whether a task carries time entries, what fields identify a task), which is the one gap the structured fields cannot fill.

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 all six parameters are already documented, making the 3 baseline appropriate. The description does add useful gloss ('product/service' for proposition_id), which the schema name alone would obscure, but adds nothing about order_by/order_direction pairing or page defaults beyond what the schema states.

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 and resource ('List time-tracking tasks') and notes the two filter axes, which is enough to distinguish it from get_task or create_task. It stops short of naming the closest sibling (papierkram_list_time_entries), so an agent must infer the boundary between tasks and time entries.

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 explicit when-to-use or when-not-to-use guidance, and no alternatives are named. The filtering sentence implies a retrieval use case, but nothing tells an agent whether to reach for list_time_entries, get_task, or this tool when both tasks and time entries are relevant.

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