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duende-skills Plugin

Author
Duende Software
Category
Security
Topics
Security, Auth & Compliance · Claude Code Customization & Workflow · Web & App Development
First seen
2026-07-09
Last confirmed
2026-07-13
Explanation last updated
2026-07-12

The explanation below is AI-generated. Please verify it against the sources.

duende-skills is a plugin providing a library of Claude Code skills and specialized agents for developing with Duende IdentityServer, Backend-for-Frontend (BFF), and OAuth/OIDC-based identity systems on .NET. According to the README, it can be installed via Claude Code, GitHub Copilot, or OpenCode, and covers topics such as ASP.NET Core authentication/authorization, token management, SAML, key management, and IdentityServer configuration and deployment. The repository also includes two specialized agents (an IdentityServer specialist and an OAuth/OIDC specialist) and a benchmark script comparing model performance with and without the skills loaded. The README reports an overall improvement from 51.1% to 99.9% assertion pass rate across 219 evaluations when skills are used. Duende Software, the maintaining organization, is the vendor behind the Duende IdentityServer product referenced throughout the skills.

Overview

Duende Software is the vendor of Duende IdentityServer, described on its homepage as a framework for OpenID Connect, OAuth 2.1, and SAML for .NET applications, offered alongside open-source libraries (IdentityModel, Access Token Management, OIDC for Native Clients) and a Backend-for-Frontend (BFF) capability. duende-skills itself is not the SaaS product but a set of AI coding-assistant skills/agents built around it.

What you can do with duende-skills

  • Install the skill set into Claude Code, GitHub Copilot, or OpenCode following the README's per-tool instructions
  • Use skills covering IdentityServer configuration, deployment, key management, SAML, DCR, session/provider management, and v7→v8 upgrades
  • Use skills for OAuth/OIDC protocols, token management, and claims-based authorization
  • Use skills for ASP.NET Core authentication and authorization patterns
  • Consult two specialized agents: identity-server-specialist and oauth-oidc-specialist
  • Run the included eval script (run-evals.sh) to benchmark skill performance against a baseline
  • Combine with the separate dotnet-skills repository for general .NET development coverage (per README recommendation)

Sources

Original description (English)

Duende development skills and agents for Claude Code — covering OAuth/OIDC protocols, IdentityServer, token management, ASP.NET Core authentication/authorization, BFF patterns, and secure identity architecture

History of duende-skills

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