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Context Snipe

Context Snipe

by RP-Digital-Innovations
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Rust
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check_vulnerabilities

Identify known advisories in your project's dependency tree by cross-referencing against the OSV.dev vulnerability database, with computed severity.

Instructions

Cross-reference a project's resolved dependencies against the OSV.dev vulnerability database and report which packages have known advisories (CVE/GHSA/RUSTSEC/PYSEC), with computed severity. Only reports advisories for packages actually present in the dependency tree — not generic noise. Requires network access to api.osv.dev.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "check_vulnerabilities"
  }
}

Input Schema

NameRequiredDescriptionDefault
pathNoPath to the project directory. Defaults to the current working directory.
severity_minNoOptional. Only report advisories at or above this severity.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.3.0

TDQS

A4.2/5.0
Behavior4/5

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

With no annotations, the description covers key behaviors: it is a read-only check (implied), requires network access, and only reports advisories for packages in the dependency tree. It does not mention side effects or permissions, but the read-only nature is clear.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two sentences, front-loaded with the core purpose, followed by a clarifying statement and a note on requirements. Every sentence adds value with no redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has two parameters and no output schema, the description explains the main behavior, scope, and constraint (network access). It could mention how dependencies are resolved or the output format, but the provided information is sufficient for an agent to understand the tool's function.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema covers 100% of parameters with descriptions. The tool description does not add additional meaning beyond the schema (e.g., no details on 'path' or 'severity_min'). Baseline 3 is appropriate as the schema already documents the parameters adequately.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description provides a specific verb ('cross-reference') and resource ('project's resolved dependencies against the OSV.dev vulnerability database'), and clearly differentiates from the sibling tool 'scan_dependencies' by focusing on vulnerability advisories rather than generic dependency scanning.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description states when to use (to get relevant advisories for actual dependencies) and mentions a requirement (network access). However, it does not explicitly state when not to use or contrast with alternatives beyond the sibling distinction.

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

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