Agent skills are portable sets of instructions, scripts, and resources that teach AI agents how to perform specific tasks. They follow the open Agent Skills specification, and work across multiple agent hosts including GitHub Copilot, Claude Code, Cursor, Codex, and Gemini CLI among others. With the new gh skill command, you can now install agent skills in a single command, right from the GitHub CLI.
Manage agent skills with GitHub CLI - GitHub ChangelogBack to changelog Rubber Duck , the cross-family review agent in GitHub Copilot CLI , is now available using a Claude-powered critic agent when your session is using a GPT model. For sessions using Claude as their orchestrator, we’ve upgraded the GPT model used to seek a second opinion. …
… How it works From the Dependabot alert detail page, select Assign to Agent and then select your desired coding agent, including Copilot, Claude and Codex. The assigned agent will: Analyze the alert, including the advisory details and your repository’s dependency usage. …
… Validate all skills gh skill publish Auto-fix metadata issues gh skill publish --fix Keep skills up to date gh skill update scans all known agent host directories, reads provenance metadata from each installed skill, and checks for upstream changes: Check for updates interactively gh skill update U… …
… You’ll be able to select the model in the model picker in: Visual Studio Code version v1.104.1 and later in all modes: chat, ask, edit, agent Visual Studio version 17.14.19 and later in all modes: agent, ask JetBrains versions 1.5.66 and later, in all modes: ask, edit, agent Xcode versions 0.48.0 a… …
… GitHub Copilot: The agent awakens Introducing agent mode for GitHub Copilot in VS Code, announcing the general availability of Copilot Edits, and providing a first look at our SWE agent. …
… May.13 Release Start Copilot cloud agent tasks via the REST API copilot May.12 Improvement Copilot code review: Comment experience improvements copilot May.12 Improvement April reports are now available to prepare for usage-based billing copilot May.11 Release Create repositories on the go with Git…
… Be aware that if you don’t specify which model to use, agents will use the current default model. .github/agents/technical-writer.md --- name: technical-writer description: Documentation specialist model: claude-sonnet-4 tools: "bash", "create", "edit", "view" --- You write clear, concise technical… …