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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and a closed-world scope, so the safety profile is fully covered without the description. The description adds only that the result includes transliteration and English, which is useful return context but no extra behavioral detail such as invalid-id handling. With annotations carrying the load, a 3 is appropriate.

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 purpose is front-loaded in the first sentence, which is good. The second sentence is a loose catalogue of unrelated Gurbani features that does not clearly attach to this tool, adding length without routing value.

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?

With no output schema, the description must carry return-value information, and it does minimally state that transliteration and English are included. It says nothing about the shape of the result (verses/lines) or behavior on an unknown id, which leaves gaps for a fetch-by-id tool.

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?

There is a single parameter with 100% schema description coverage ('A BaniDB shabad ID'), so the schema already documents it fully. The description reinforces 'by BaniDB id' but adds no format, range, or validity information beyond that. Baseline 3 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?

The first sentence states a specific verb-less but unambiguous action: retrieve a whole shabad identified by BaniDB id, with transliteration and English. That distinguishes it reasonably from get_ang (whole Ang) and search_readings. It stops short of explicitly naming siblings, so it is clear but not fully differentiated.

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 second sentence is a domain catalogue ('daily shabad, plans, search, Ang and shabad lookup; whole books from the Library') rather than guidance for this tool. It never says when to call get_shabad instead of get_ang, get_reading, or get_today, leaving the agent to infer selection from sibling names alone.

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