[article] Copilot CLI Weekly: MCP Servers Get LLM Access

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Summary

Weekly digest covering Copilot CLI releases from March 23-27, 2026:

• v1.0.11 (March 23): Organization MCP policy enforcement, skills directory alignment
• v1.0.12 (March 26): Full-screen model picker redesign, 28 stability improvements
• v1.0.13-0 (March 27): MCP sampling support — servers can now request LLM inference with user approval

Key Highlights

MCP Sampling (v1.0.13-0)

• MCP servers can now delegate reasoning to the user's LLM
• Users approve each request via review prompt
• Eliminates need for servers to maintain their own API subscriptions
• Aligns with VS Code implementation that shipped last summer

Model Picker Redesign (v1.0.12)

• Full-screen model picker with inline reasoning effort controls (← / → arrows)
• Models organized into Available, Blocked/Disabled, and Upgrade tabs
• Reasoning effort level displays in header (e.g., "claude-sonnet-4.5 (high)")

Policy & Stability (v1.0.11, v1.0.12)

• Organization-level MCP allowlist enforcement now universal
• Memory crash fixes for high-volume shell output
• Skills directory alignment with VS Code extension (~/.agents/skills/)
• Extension hooks now merge instead of overwriting
• /yolo command gets explicit on/off/show subcommands

Links

• v1.0.13-0 Release Notes
• v1.0.12 Release Notes
• v1.0.11 Release Notes
• [Previous weekly digest]((htek.dev/redacted) (v1.0.5-v1.0.10)

Testing

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✅ Cross-references to existing htek.dev articles included

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