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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so the safety profile is covered. The description usefully adds what content comes back (Sanskrit with transliteration and English), but says nothing about out-of-range verses, range size limits, or error behavior for invalid chapters.

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 first sentence is tight and front-loaded, but the second is a stream of app-level feature nouns ('daily verses, plans, search and verse lookup; whole books from the Library, read a passage at a time') that does not describe this tool's behavior and reads like scraped marketing copy.

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 only two fully-documented parameters, strong annotations, and no output schema, the core facts an agent needs are present plus the return-content note. Still missing are boundaries the description should supply, such as maximum range width, behavior across chapter boundaries, and what happens on an invalid reference.

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%: the schema already documents 'chapter' as 1-18 and gives '47-51' as the verse example. The description repeats the same range example without adding syntax rules such as whether ranges may span chapters or how a single verse should be passed. Baseline 3 applies when the schema carries the parameter burden.

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 identifies the resource (a verse or a range such as 47-51) and its payload (Sanskrit, transliteration, English), but there is no explicit verb and no differentiation from siblings like get_chapter or get_reading. The second sentence drifts into describing the whole Bhagavad Gita app (daily verses, plans, search, Library books) rather than this tool, which muddies rather than sharpens the purpose.

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 phrase 'verse lookup' hints at when to use it, but there is no comparison to get_chapter (whole chapter), get_reading, or search_readings, and no stated conditions for choosing a range versus a single verse. An agent gets no routing guidance from this text.

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