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 fully covered. The description adds only the ranking behavior ('best match first'), which is mildly useful but is not a rich behavioral disclosure — no result count, no empty-result behavior, no scope of the corpus searched.

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 useful content is front-loaded in the first two sentences, but the third sentence is generic app-level boilerplate about daily readings, plans, and the Library that does not belong in a search tool's definition. It dilutes rather than earns its place.

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 single-parameter search with full annotation coverage and no output schema, the description is minimally adequate. It never states what a result contains or how many matches come back, which is a real gap given the absence of an output schema.

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?

One parameter with 100% schema description coverage, so the schema already documents 'q' with an example. The description adds no syntax, matching, or format guidance beyond the schema, 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 first two sentences give a specific verb and resource ('Search the curated readings, best match first'), which is clearer than most siblings. However, the trailing sentence ('Talmud: daily readings, plans, search and original text lookup; whole books from the Library...') describes the whole app rather than this tool, so it does not sharpen the distinction from talmud_list_readings or talmud_get_reading.

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 statement of when to use this over talmud_list_readings, talmud_get_reading, or talmud_get_talmud_text, and no prerequisites or exclusions. The agent must infer that 'search' means keyword lookup rather than listing or fetching a known passage.

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