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

Annotations already cover safety (read-only, idempotent, non-destructive), and the description adds a small amount of behavioral context by saying the result includes a description and key sources. It does not disclose how the 'current' date is determined or how the israel flag affects results, so transparency is only partial.

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?

A single compact sentence delivers the essential purpose, the two kind values, and the output contents with no filler. The key decision information is front-loaded.

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 simple read-only lookup with only one required parameter, the description covers what the tool returns and when to use it. The main gap is the unexplained israel flag and the exact behavior with a custom date, but given the low complexity and rich annotations, the missing context 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 only 33%; the description helps by mapping the kind enum to 'parasha' and 'holiday' and adding the 'curated topic' meaning. However, it adds nothing about the israel parameter and only restates the date behavior that the schema already provides, leaving a real semantic 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 states a clear verb ('Get'), a specific resource ('curated topic for the current parsha ... or the current/upcoming holiday'), and the expected contents (description and key sources). It does not explicitly distinguish itself from sibling tools like get_parasha or holiday_sources, so it falls short of a 5.

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 gives concrete temporal triggers: use for the current parsha or the current/upcoming holiday. It does not name alternative tools or explain when not to use it, but the context is clear enough for a read-only lookup.

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