Teaches Copilot how to scan a repo's dependencies and find which ones
accept sponsorship via GitHub Sponsors, Open Collective, etc.
Workflow:
1. Fetch package.json from target repo
2. Resolve each dep to source GitHub repo via npm registry
3. Check npm funding field + .github/FUNDING.yml
4. Group by maintainer, present report with sponsor links
Tested against expressjs/express: found 9/28 deps sponsorable (32%)
across 3 funding destinations.
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