version: "1.0.0" name: scan-dependencies description: > CRITICAL: The scan-dependencies skill flags any dependencies that are unsafe to use. It MUST be called BEFORE any new package is imported or added to dependencies. It can also be used to check whether any new or existing dependencies are unsafe.

Skill: Evaluate Dependency Security via deps.dev Findings API

Description

This skill automates the process of auditing package dependencies before adoption. By querying the Open Source Insights (deps.dev) API, it checks a batch of package versions for active security findings (advisories and vulnerabilities) and outputs a clear action plan (ALLOW, CAUTION, or BLOCK).

Inputs

An array of target dependencies. Each dependency must contain:

• system: The ecosystem name. Must be uppercase: NPM, PYPI, MAVEN,

GO, CARGO, NUGET, or RUBYGEMS.

• name: The canonical name of the package (e.g.,

org.apache.logging.log4j:log4j-core for Maven, or normalized lowercase for PyPI/NuGet).

• version: The explicit version string to audit. This may be unset.

Only set the version field if you know the exact version of the package. This field should not be set if only a version range is known (for example, ^1.0.0 is not acceptable).

Execution Protocol

Step 1: Construct the JSON Payload

Map the incoming dependency list into a single JSON batch request object. Ensure all items are nested inside the "requests" array under a "versionKey" or "packageKey" parameter.

Payload Schema Example:

{
  "requests": [
    {
      "versionKey": {
        "system": "NPM",
        "name": "express",
        "version": "4.17.1"
      }
    },
    {
      "packageKey": {
        "system": "PYPI",
        "name": "requests"
      }
    }
  ]
}

Step 2: Execute the Live Lookup

Execute the HTTP POST query using curl.

echo "Scanning dependencies for safety..."
curl -s -X POST https://api.deps.dev/v3alpha/findingsbatch \
  -H 'Content-Type: application/json' \
  -d '{ "requests": [
        {
          "versionKey": {
            "system": "NPM",
            "name": "express",
            "version": "4.17.1"
        }, 
        {
          "packageKey": {
            "system": "PYPI",
            "name": "requests"
        },
        ...
   ]'

Note that just because a dependency doesn't show up in this list, that doesn't mean we are 100% sure that it is safe. CRITICAL: Treat unflagged dependencies as having unknown risk levels. You must state clearly that the scanner only detects known issues and cannot guarantee absolute security.