Duende Skills

Duende Agent Skills

A set of agent skills and specialized agents for Duende IdentityServer, Backend-for-Frontend (BFF), and identity/access management development. Covers OAuth 2.0, OpenID Connect, Duende, token management, ASP.NET Core authentication and authorization, and related skills needed to build production-grade identity infrastructure.

Your Feedback 🗣️

We would love to hear your feedback about these skills! What's working? What's not? What's missing?

For questions, feedback, or community discussions, visit the Duende Community.

Installation

You can use several AI coding assistants that support skills/agents.

Claude Code (CLI)

Official Docs

Run these commands inside the Claude Code CLI:

/plugin marketplace add DuendeSoftware/duende-skills
/plugin install duende-skills

To update:

/plugin marketplace update

Recommended: Also install dotnet-skills for general .NET development coverage:

/plugin marketplace add Aaronontheweb/dotnet-skills
/plugin install dotnet-skills

Copy to clipboard

GitHub Copilot

Official Docs

Clone or copy skills to your project or global config:

Project-level (recommended):

git clone https://github.com/DuendeSoftware/duende-skills.git /tmp/duende-skills
cp -r /tmp/duende-skills/skills/* .github/skills/

Global (all projects):

mkdir -p ~/.copilot/skills
cp -r /tmp/duende-skills/skills/* ~/.copilot/skills/

Recommended: Also install dotnet-skills for general .NET development coverage.

OpenCode

Official Docs

git clone https://github.com/DuendeSoftware/duende-skills.git /tmp/duende-skills

# Global installation (directory names must match frontmatter 'name' field)
mkdir -p ~/.config/opencode/skills ~/.config/opencode/agents
for skill_file in /tmp/duende-skills/skills/*/SKILL.md; do
  skill_dir=$(dirname "$skill_file")
  skill_name=$(grep -m1 "^name:" "$skill_file" | sed 's/name: *//')
  mkdir -p ~/.config/opencode/skills/$skill_name
  cp "$skill_file" ~/.config/opencode/skills/$skill_name/SKILL.md
  # Copy bundled resources (docs/, references/, etc.) if present
  find "$skill_dir" -mindepth 1 -maxdepth 1 -type d -exec cp -r {} ~/.config/opencode/skills/$skill_name/ \;
done
cp /tmp/duende-skills/agents/*.md ~/.config/opencode/agents/

Recommended: Also install dotnet-skills for general .NET development coverage.

Skills Library

Identity & OAuth

Looking for general .NET skills? C# coding standards, concurrency patterns, EF Core, database performance, Aspire configuration, dependency injection, Playwright testing, snapshot testing, project structure, package management, and more are available in dotnet-skills.

Agents

Skill Evaluation Benchmarks

Each skill is evaluated using 5–12 realistic prompts with concrete assertions. Every prompt is answered with the skill loaded and without it (baseline), then graded against the assertions. This measures the incremental value each skill provides over general LLM knowledge.

Run evals for all skills using GitHub Models (via gh CLI):

./scripts/run-evals.sh --iteration 3 --verbose

Results — June 1, 2026 (claude-opus-4-20250514)

227 evals across 24 skills — 1011 total assertions

…