GitHub has quietly been building the most compelling answer to Claude Code and OpenAI's Codex CLI — and it just arrived as a standalone product. Copilot CLI is a terminal-native coding agent that lives outside VS Code, competes head-on with Anthropic and OpenAI's standalone tools, and leans hard into one advantage neither rival can match: native GitHub integration.
"Less // TODO: more done. Run a GitHub-native agent in your terminal that works directly with your issues and pull requests, executes across a /fleet of parallelized subagents, and carries you from /plan to merged code."
What actually changed
GitHub Copilot has always lived inside editors. With the Copilot CLI, it ships as a first-class standalone terminal agent — comparable in scope to Claude Code (Anthropic) and Codex CLI (OpenAI):
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Install in one line:
curl -fsSL https://gh.io/copilot-install | bashornpm install -g @github/copilot - Included in all plans — Free, Pro, Pro+, Business, Enterprise — no separate billing
- /plan mode: Shift+Tab to outline work before touching code; Copilot proposes, you approve
- /fleet: Spin up parallel subagents across multiple models simultaneously — compare results, pick the best
- /model switching: Change foundation models mid-session (Anthropic, Google, OpenAI all supported)
- GitHub-native MCP: Built-in access to your issues, branches, PRs and labels — no context hunting
- /delegate: Create a branch, implement a change, open a PR — one command
- AGENTS.md support: Define custom instructions and tool access per repo
- Works within existing guardrails: Branch protections, required checks, org policies all apply
The workflow they're pitching: start in the CLI with /plan, execute with /fleet, refine in /IDE (VS Code), ship via /delegate. The CLI is the on-ramp; the rest of your toolchain stays intact.
Why this matters
The standalone terminal agent market just got a lot more crowded — and GitHub's entry has structural advantages.
Claude Code is brilliant but Anthropic-only. Codex CLI is powerful but tethered to OpenAI's models. Copilot CLI is model-agnostic and GitHub-native, which means it can do things the others can't: pull context from issues, enforce your branch protections automatically, and hand off directly to your existing CI/CD. You don't swap in a new workflow — you extend the one you already have.
The /fleet feature is also worth watching. Running parallel subagents across different models on the same task and converging on a decision-ready result is genuinely new territory for a shipping product.
What to do
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If you're on any Copilot plan: Install it now.
npm install -g @github/copilot. It's already included. - Business/Enterprise teams: Your admin needs to enable Copilot CLI in org settings first.
- Try the Skills exercise: github.com/skills/create-applications-with-the-copilot-cli — hands-on walkthrough from scratch.
- Evaluate against Claude Code and Codex: If you're already running one of those, Copilot CLI's GitHub-native MCP integration is the main differentiator to test in your actual workflow.
Source: The New Stack · GitHub Copilot CLI
✏️ Drafted with KewBot (AI), edited and approved by Drew.
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