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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so safety is covered. The description adds a genuinely useful behavioral fact beyond that: the searchable corpus is callable and browser tools and matching is lexical over names/descriptions. It still omits result shape, ranking, and whether matching is substring or token-based AND/OR.

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?

One front-loaded sentence with zero filler; the verb, resource, corpus, and match strategy all appear immediately.

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?

There is no output schema, so the description could reasonably say what a match looks like (tool name only? name plus description? schema?) to let an agent chain into get_tool_schema or call_tool. Annotations cover the safety profile, so the remaining gap is moderate rather than severe.

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 0%, so the description must carry parameter meaning. It clarifies the primary parameter's semantics ('words in their names and descriptions'), which is more than the schema gives. However 'limit' is never explained and query syntax (multiple words, phrases, operators) remains ambiguous.

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?

Names a specific verb ("Find") and resource ("tools"), and adds real scope detail: the corpus is 'callable and browser tools' and matching is by words in names and descriptions. It is clearly a discovery tool and does not read like its siblings call_tool/get_tool_schema, but it never explicitly contrasts itself with them.

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?

Nothing states when to reach for search_tools versus get_tool_schema or call_tool, or that it is the discovery step preceding invocation. No prerequisites, no exclusions, no workflow context.

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