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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, covering the safety profile entirely. The description contributes the notion of sequential progression ('carries on into the next chapter'), which is a genuine behavioral trait, but says nothing about return format, how 'next' is determined, or pagination limits.

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?

Structure is poor: the leading sentence looks like a stray continuation directive, and the trailing clause ('daily verses, plans, search and verse lookup') advertises the whole app rather than this tool. Much of the text does not earn its place and the actual purpose is buried.

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 4 well-described parameters and annotations covering safety, the essentials for invoking the tool are recoverable from structured data. However, for a 4-param content-reading tool with no output schema, the description should clarify what a passage response contains and how sequential reads advance; it does so only obliquely.

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 100%, so book, section, n and ref are all documented in the schema with examples and override/default rules. The description adds no parameter meaning beyond that, so the baseline 3 applies.

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 tool's actual job – reading whole books from the Library one passage at a time – appears only in the second half of the description. The opening sentence ('Follow next for the next passage; it carries on into the next chapter') reads like output text from a previous response rather than a statement of what this tool does, blurring its purpose against siblings like get_chapter and get_verse.

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 guidance and no alternatives are named. The phrase 'whole books from the Library, read a passage at a time' implies sequential reading, but an agent gets no signal about choosing this over get_chapter, get_verse, or get_today.

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