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…date Document new Copilot CLI features from releases v1.0.25–v1.0.27: - Add /ask command to Essential Slash Commands (ask quick questions without affecting conversation history) - Add /env command to Additional Commands reference (shows active instructions, MCP servers, skills, agents, and plugins) - Document MCP server registry installation (/mcp install) in Chapter 06 as the beginner-friendly path before manual JSON configuration - Add 'copilot plugin marketplace update' command to Chapter 05 plugin section so learners can refresh stale plugin catalogs Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
Documents newly released Copilot CLI beginner features (v1.0.25–v1.0.27) by updating the course content for slash commands, MCP registry installation, and plugin marketplace refresh.
Changes:
- Adds
/askand explanatory guidance to the “Essential Slash Commands” section and updates key takeaways. - Adds
/envto the “Agent Environment” command reference. - Adds MCP registry-based installation guidance and documents
copilot plugin marketplace updatein the skills/plugins chapter.
Show a summary per file
| File | Description |
|---|---|
| 01-setup-and-first-steps/README.md | Documents /ask and /env for beginners and updates the essential-command summary. |
| 05-skills/README.md | Adds the plugin marketplace catalog refresh command to help users discover new plugins. |
| 06-mcp-servers/README.md | Introduces registry-based MCP server installation guidance ahead of manual JSON configuration. |
Copilot's findings
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06-mcp-servers/README.md:144
- This sentence hard-codes
/mcp searchas the command that creates/updates the config file. Once the registry workflow command is finalized (e.g.,/mcp install,/mcp add, etc.), update this reference accordingly so it stays accurate and consistent with the earlier section.
MCP servers are configured in `~/.copilot/mcp-config.json` (user-level, applies to all projects) or `.mcp.json` (project-level, placed in the root of your project). If you used `/mcp search` above, the CLI already created or updated this file for you, but it's useful to understand the format for customization.
- Files reviewed: 3/3 changed files
- Comments generated: 2
| ## Installing MCP Servers from the Registry | ||
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| The CLI has a built-in MCP server registry that lets you discover and install popular servers with a guided setup — no JSON editing required. | ||
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| ```bash | ||
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| > /mcp search | ||
| ``` | ||
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| Copilot opens an interactive picker showing available servers. Select one, and the CLI walks you through any required configuration (API keys, paths, etc.) and adds it to your config automatically. |
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The section is titled "Installing MCP Servers from the Registry" but the example uses /mcp search. Later in this chapter's command reference the interactive add flow is documented as /mcp add (and the PR description mentions /mcp install). Please align the docs on the actual command(s) and naming so readers don’t follow a command that isn’t documented elsewhere in the chapter.
This issue also appears on line 144 of the same file.
| To keep your local plugin catalog current, refresh it with: | ||
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| ```bash | ||
| copilot plugin marketplace update | ||
| ``` |
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This command (copilot plugin marketplace update) is a terminal subcommand, but it appears immediately after an interactive-session snippet (copilot + > /plugin ...). Add a short note clarifying it should be run from your shell (outside the interactive Copilot prompt), otherwise beginners may try to paste it after > and get an error.
What changed
This PR documents four beginner-relevant features from Copilot CLI releases v1.0.25, v1.0.26, and v1.0.27 (April 13–15, 2026).
New features found
/askcommand/envcommand/mcp install)copilot plugin marketplace update/plugin marketplaceFeatures excluded as too advanced for beginners: OpenTelemetry monitoring, ACP client MCP providers, Anthropic BYOM image data, enterprise login improvements, plugin hook env vars.
Sections updated
01-setup-and-first-steps/README.md/askto the Essential Slash Commands table (with an explanation of how it differs from regular chat)/envto the Agent Environment section of Additional Commands, with a troubleshooting tip/ask05-skills/README.mdcopilot plugin marketplace updatecommand to the Plugins section with a usage note06-mcp-servers/README.md/mcp installas the easiest starting point for beginnersSource announcements
/askcommand,copilot plugin marketplace update, status bar hints/envcommand, MCP registry install,/remotecommand