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

No annotations are provided, so the description carries the full behavioral burden, yet it discloses nothing beyond the one-line purpose: no note that this is a read-only lookup, no error behavior for out-of-range chapters/verses, and no mention that locale changes returned translation. It also fails to clarify whether verses are returned with surrounding context.

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 with no wasted words, front-loading the verb and resource. It is efficient but arguably too terse given the gaps in behavioral and usage information.

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 three-parameter read tool with full schema coverage and no output schema, the definition is minimally adequate. However, with no annotations and no output schema, it should say more about what locale is for and what the response contains.

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 the schema already documents all three parameters (chapter as surah number, verse as 1-indexed ayah, locale defaulting to en). The description adds little beyond that, so the baseline applies, though it confirms the surah/verse addressing model implicitly.

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?

States a specific verb and resource: get a specific verse from a Quran surah. Clear enough to distinguish from get-chapter (whole chapter) and search-content (query-based), though it never names those siblings explicitly.

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?

No when-to-use or when-not-to-use guidance, no mention of prerequisites such as needing the chapter and verse numbers, and no routing toward search-content when the verse number is unknown. Usage is only implied by the name.

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