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[bot] Add /ask, /env, MCP registry install, and plugin marketplace update commands#80

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[bot] Add /ask, /env, MCP registry install, and plugin marketplace update commands#80
DanWahlin wants to merge 1 commit intomainfrom
update/new-cli-features-apr-2026-bbd5b10c37d71426

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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

Feature Release What it does
/ask command v1.0.27 Ask a quick question without it affecting your conversation history
/env command v1.0.25 Shows all loaded environment details — instructions, MCP servers, skills, agents, and plugins
MCP registry install (/mcp install) v1.0.25 Install MCP servers from a built-in registry with guided configuration — no JSON editing required
copilot plugin marketplace update v1.0.27 Refreshes local plugin catalogs so new plugins show up in /plugin marketplace

Features 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

  • Added /ask to the Essential Slash Commands table (with an explanation of how it differs from regular chat)
  • Added /env to the Agent Environment section of Additional Commands, with a troubleshooting tip
  • Updated the Key Takeaways list to include /ask

05-skills/README.md

  • Added copilot plugin marketplace update command to the Plugins section with a usage note

06-mcp-servers/README.md

  • Added a new Installing MCP Servers from the Registry section before the manual JSON config section, positioning /mcp install as the easiest starting point for beginners
  • Updated the MCP Configuration File intro to note that the registry install handles the JSON automatically

Source announcements

Generated by Course Updater · ● 1.2M ·

…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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