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Copilot CLI update: chronicle, plugins, and fleet mode

GitHub Checkout

In this episode of GitHub Checkout, we sit down with Copilot CLI Product Manager Ryan Hecht to explore the latest experimental features. We cover the plugin marketplace, the /chronicle slash command for self-healing prompts, and how to run Claude Opus 4.6, GPT-5.4, and Gemini 3 simultaneously. We also walk through how /fleet mode and autopilot can handle massive refactoring tasks while you step away.

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Cascading Style Sheets (CSS) is a language used most often to style and improve upon the appearance of views.

This recommendation was created by GitHub staff

Argos Visual Testing

Argos helps teams catch unintended UI changes before they reach production. It runs visual tests in CI, compares screenshots and ARIA snapshots against a baseline, and shows clear diffs directly in pull requests. No screenshot commits, no manual review, and no flaky noise thanks to built in stabilization. Works out of the box with Playwright and Storybook, and integrates seamlessly with GitHub and GitLab. Start free and keep product quality high while shipping faster.

Trending repository

Open-source All in One AI agent workspace. Run any agent — Claude Code, Codex — across your tools (100+ integrations + MCP), apps, browser, and files, with shared memory. Built-in models or BYOK.

  • Updated Aug 12, 2026
  • TypeScript
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Axolo for Slack

Enable your team to merge pull requests faster

Axolo is a bi-directional Slack & GitHub/GitLab integration.

With Axolo, tech teams collaborate on pull requests seamlessly. Each pull request creates a temporary Slack channel where all information (deployments, pull request checks, and code comments) will be shared. Axolo takes all of the normal back-and-forths on GitHub and Slack to centralize the conversation in ephemeral pull request channels. But this is only step 1!