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make-custom-agent

Create custom GitHub Copilot agents. Use when asked to create, scaffold, or configure a custom agent, declarative agent, or @-invokable chat participant for GitHub Copilot.

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Security score

The make-custom-agent skill was audited on Jun 24, 2026 and we found 4 security issues across 2 threat categories. Review the findings below before installing.

Categories Tested

Security Issues

medium line 202

Webhook reference - potential data exfiltration

SourceSKILL.md
202If the agent should be available on GitHub.com, Visual Studio, JetBrains, and VS Code simultaneously, implement a GitHub App that acts as a Copilot Extension. The app registers a webhook endpoint, rec
low line 239

External URL reference

SourceSKILL.md
239- [VS Code Chat Participant API](https://code.visualstudio.com/api/extension-guides/ai/chat)
low line 240

External URL reference

SourceSKILL.md
240- [VS Code AI Extensibility Overview](https://code.visualstudio.com/api/extension-guides/ai/ai-extensibility-overview)
low line 244

External URL reference

SourceSKILL.md
244- [Agent Skills Specification](https://agentskills.io/specification)
Scanned on Jun 24, 2026
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GitHub Stars 14.7K
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Categorydevelopment
UpdatedJune 24, 2026
dotnet/efcore