The Copilot Agents showcase site on a laptop resting on a slab of stone
All work

AI/ML · Open source

Awesome Dev Agents

Nine GitHub Copilot custom agents across the dev lifecycle.

Role
Design and engineering
Year
2026
Status
Live
Stack
  • GitHub Copilot
  • Prompt engineering
  • Shell
  • HTML
  • CSS
  • 9

    Agents

  • 1 command

    Install

(01)

Problem

Copilot's custom agent mode is powerful, but most people still use generic prompts and re-explain their stack every time.

(02)

Approach

Nine purpose-built agents, each with a focused domain, opinionated rules, a defined toolset and example trigger phrases. They are plain .agent.md files: drop them into a repo and they appear in Copilot's agent list, ready to use without editing.

(03)

The nine agents

AgentWhat it does
AI EngineerLLM apps, RAG pipelines, inference endpoints and computer vision workflows
Full Stack DevComplete features from React components to REST APIs
ML ResearcherExperiments with proper method: EDA first, cross-validation, clear metrics
Code ReviewerStructured critical, warning and suggestion reports in any language
System DesignerArchitecture documents with diagrams, API tables and database schemas
Doc WriterREADMEs, proposals, papers and docstrings that sound like a person wrote them
Security AuditorOWASP Top 10, exposed secrets, injection risks and prompt injection in LLM apps
Open Source ContributorFinding a project, reading the codebase, and writing the first PR or proposal
UI DesignerExtracts the design language from a screenshot and applies it to your code
(04)

Key features

  • One-command install into any repo's .github/agents folder, on macOS, Linux and Windows.
  • Works in Copilot Chat and the Copilot CLI.
  • Workflow combinations. Agents are designed to hand off to each other. A new feature, for example, goes from System Designer to Full Stack Dev to Code Reviewer.
  • An interactive showcase site for browsing the agents and copying the install command.
  • Open to contributions, with a documented file format for adding an agent of your own.

Next project

© 2026

The Emergency Core operations dashboard, with incident counts, two active alerts and their AI situation briefs

Rapid Crisis Response