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

With no annotations, the description carries the burden and does disclose meaningful behavioral traits: the content is 'gathered and attributed, never authored,' anchored to a frozen Greek text, and the tool returns either one teaching or a queue. It does not state return format or side effects, but the curated, read-oriented nature is reasonably transparent.

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 description is just two sentences, front-loaded with the resource name and purpose, then immediately provides usage logic. No words are wasted, and the structure makes the fallback behavior explicit.

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 one-parameter tool with no output schema, the description is largely complete: it covers what is returned, the nature of the content, and the id/queue behavior. It lacks an explicit return shape and direct sibling differentiation, but these are not critical for such a focused 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?

The single parameter `id` is explained: passing it retrieves one teaching, while omitting it returns the queue. This compensates well for the 0% schema description coverage, though it does not specify the exact format or provenance of the id.

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 identifies a specific resource (teachings of Christ / Words in Red) and conveys the retrieval behavior: pass an id for one teaching, otherwise get the queue. It stops short of an explicit verb like 'get' or 'list' and does not clearly differentiate from siblings such as original_words or commentary.

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 clear conditional usage ('Pass id for one teaching; else the queue'), which tells an agent how to invoke the tool. However, it does not explicitly state when to choose this tool over alternatives or mention any exclusions or prerequisites.

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