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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds useful behavioral detail beyond annotations by disclosing the granularity of returned data: activity types, time spent listening/reading, and quiz results per attempt.

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 description is one compact sentence with no wasted words, and the key content (activity types) is front-loaded. It is perhaps overly terse, but structurally efficient.

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?

There is no output schema, so the description should fully explain the returned progress data; it enumerates the main pieces but not their structure or per-child grouping. It also omits any explanation of the required package_id, leaving an agent to infer the parameter from the name alone.

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?

The single required parameter package_id has 0% schema description coverage. The description refers to 'Lernpaket' contextually but never explains what package_id is, its expected format, or how it maps to a learning package, so it does not compensate for the schema gap.

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 specifies the resource content precisely: opened, listened/read with time, and quiz results per attempt. It lacks an explicit retrieval verb and does not name sibling tools, but the data scope makes clear it is a progress-detail read operation.

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?

Usage is implied by the phrase 'Was das Kind im Lernpaket gemacht hat' – check what a child did in a learning package. There is no explicit when-to-use guidance versus siblings such as list_student_packages or reset_support_progress, and no exclusions are stated.

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