update_vulnerability_db

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

With no annotations, the description fully bears the burden of behavioral transparency. It discloses the download source (gs://osv-vulnerabilities/Go/all.zip), file size (~7.5MB), and default cache location. It does not mention whether old cache is overwritten or if the operation is atomic, but the 'fresh' keyword implies replacement.

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?

Three sentences, each serving a distinct purpose: action, source/size, and unique differentiator with cache path. No redundant words, front-loaded with the key action.

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?

Given the simplicity of the tool (one optional parameter, no annotations), the description covers the essential aspects: what it does, where data comes from, and its unique network requirement. An output schema exists, so return values need not be described. A minor gap is the lack of mention about error handling or prerequisites like internet access, but the uniqueness claim implies it.

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% for the single parameter, but the description adds value by specifying the default output path and file naming pattern (go-osv-{date}.json). This provides actionable context beyond the schema's description of the parameter.

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?

Description clearly states the tool downloads a fresh OSV Go vulnerability snapshot to local cache for offline scanning. The phrase 'This is the ONLY tool that makes network requests' strongly differentiates it from sibling tools, many of which are audit/check tools that operate locally.

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?

The description implies usage when offline scanning is needed and when a network request is required. It explicitly says 'This is the ONLY tool that makes network requests,' guiding the agent to use it for network-dependent operations. However, it does not explicitly mention when not to use it or provide alternatives.

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