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[bot] Add Extensions (experimental); update Hooks ask permission, MCP devcontainer, Squad SDK-first mode#7

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[bot] Add Extensions (experimental); update Hooks ask permission, MCP devcontainer, Squad SDK-first mode#7
github-actions[bot] wants to merge 1 commit intomainfrom
update/copilot-march-2026-a48da2a079fd7802

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What's new

Automated daily check found the following Copilot updates from the past 7 days (March 4–10, 2026):

New features found

Copilot CLI v1.0.3–v1.0.4-0 (released March 9–10, 2026):

  • Extensions (experimental) — Ask Copilot to write and install its own tools and hooks in-session using @github/copilot-sdk
  • Hooks "ask" permission (v1.0.4-0) — hooks can now request user confirmation before executing a tool command
  • MCP from .devcontainer/devcontainer.json — MCP server config is now also read from dev container files
  • --reasoning-effort CLI flag, /restart command, configure-copilot sub-agent (mentioned in release notes)

Squad v0.8.22–v0.8.25 (released March 7–8, 2026):

  • SDK-first mode — typed TypeScript builder functions (defineTeam(), defineAgent(), defineRouting(), defineHooks(), defineSquad()) with squad build command
  • squad migrate command (from .ai-team/ to .squad/)
  • squad link command for remote team roots

awesome-copilot (March 9, 2026):

  • External community plugins now displayed on the website (flagged 🔗 External)

Sections updated

Section Change
At a Glance (ASCII diagram) Added Extensions row
Table of Contents Added Extensions link
MCP Servers Added .devcontainer/devcontainer.json as a location
Hooks Added permission field table with ask option
Plugins (no change)
Extensions (new section) New section documenting the experimental feature
Squad Updated "What's new" from v0.8.x to v0.8.22–v0.8.25, added SDK-first mode, squad build, squad migrate, squad link
awesome-copilot Added note about external plugins feature
Quick Reference Added Extensions row
Further Reading Updated CLI release notes note; added Squad v0.8.24 blog link

Sources

Generated by Check Copilot Updates ·

… March 2026

- New section: Extensions (experimental CLI v1.0.3+) — ask Copilot to write its
  own tools and hooks on-demand using @github/copilot-sdk
- Hooks: document 'ask' permission decision (v1.0.4-0) — hooks can now request
  user confirmation before executing tool commands
- MCP: add .devcontainer/devcontainer.json as a supported config location (v1.0.3)
- Squad: update to v0.8.22–v0.8.25; document SDK-first mode (defineTeam/defineAgent
  builders, squad build command), squad migrate, squad link for remote teams
- awesome-copilot: note external community plugins now shown on the website
- Quick Reference, ToC, ASCII diagram, Further Reading all kept in sync

Sources:
- https://github.com/github/copilot-cli/releases/tag/v1.0.3
- https://github.com/github/copilot-cli/releases/tag/v1.0.4-0
- https://github.com/bradygaster/squad/releases/tag/v0.8.24
- https://github.com/bradygaster/squad/releases/tag/v0.8.25
- github/awesome-copilot@3efc4f3 (external plugins)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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