97

97

Your agent, on the shoulders of giants.

Early beta. Works on Claude Code, GitHub Copilot CLI, and OpenCode.

Install · What's inside · Does it work? · FAQ · Credits · Development

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What this is

Skills your coding agent uses at the moment of decision: when it's about to refactor, write a test, design an API, or commit. They draw on Fowler on refactoring, 12-factor on configuration and deploys, Ousterhout and Liskov on API design, Nygard on resilience patterns, and others.

The project is named after 97 Things Every Programmer Should Know (O'Reilly, ed. Kevlin Henney) and follows the same idea: one principle at a time, applied when it matters. Every principle is attributed to its original author. Principles are language-agnostic and durable.

Install

Works on Linux, macOS, and Windows. Node 18+.

Three supported harnesses. Pick the one you use.

Claude Code

/plugin marketplace add oribarilan/97
/plugin install 97@97-marketplace

Updates ship via the marketplace; run /plugin update 97 when a new version is available.

GitHub Copilot CLI

copilot plugin marketplace add oribarilan/97
copilot plugin install 97@97-marketplace

Updates ship via the marketplace; run copilot plugin update 97 when a new version is available.

OpenCode

Add to your OpenCode config file.

{
  "plugin": [
    "97@git+https://github.com/oribarilan/97.git"
  ]
}

Restart OpenCode. The plugin pulls the latest commit on each restart.

Advanced: pinned install

For reproducible behavior across sessions, pin to a specific tag (#vX.Y.Z):

{
  "plugin": [
    "97@git+https://github.com/oribarilan/97.git#v0.5.0"
  ]
}

What's inside