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

With no annotations, the description carries the full burden, and it largely does not: the only behavioral signal is the parenthetical '(live)', which is ambiguous (live source vs. live index vs. real-time). There is no mention of result format, limits, pagination, or whether results include docs as well as repos.

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 short sentence with the action and resource front-loaded and no filler. The parenthetical '(live)' is the only low-information fragment and slightly muddies an otherwise crisp line.

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 one-parameter search tool with no annotations and no output schema, the definition is minimally viable: the single parameter is fully documented in the schema. However, an agent gets no guidance on what a result looks like or how to choose this over get_doc/framework_overview.

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 100%, so the baseline is 3. The description adds only the word 'keyword', while the schema actually specifies the match targets ('repo names + descriptions'); the description's broader claim of searching 'repos and docs' creates mild tension with the narrower schema wording rather than clarifying it.

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 ('Search') and resource ('togo repos and docs') plus the mechanism ('by keyword'), so the agent knows exactly what the tool returns candidates for. It does not explicitly contrast itself with siblings like get_doc, but the search-vs-fetch distinction is inferable from the wording.

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?

Usage is only implied: 'by keyword' suggests exploratory lookup versus get_doc's single-document retrieval, but the description never states when to prefer this tool over get_doc or framework_overview. No prerequisites, exclusions, or fallback conditions are given.

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