Copilot CLI v1.0.13-0: MCP Sampling & OAuth Fixes

Copilot CLI 1.0.13-0 adds MCP server LLM inference with user approval, fixes OAuth in ACP mode, reasoning effort for BYOM, and removes gemini-3-pro-preview support.

Copilot CLI v1.0.13-0: MCP Sampling & OAuth Fixes

TL;DR

  • MCP servers can now request LLM inference with user approval
  • Fixed OAuth authentication in ACP mode and reasoning effort for BYOM providers
  • Removed gemini-3-pro-preview model support

New

  • MCP server LLM inference — MCP servers can request sampling with explicit user review prompts for transparency and control.

Fixed

  • MCP allowlist policy — Blocked servers no longer appear in /mcp show output.
  • Reasoning effort with BYOM — Reasoning effort setting now applies correctly when using Bring Your Own Model providers.
  • Classic PAT errors — Clear error messaging when using classic personal access tokens.
  • grep tool memory — grep handles large files and long lines without memory exhaustion.
  • MCP OAuth in ACP mode — OAuth authentication now works when CLI runs in ACP mode.
  • $BROWSER parsing — Split $BROWSER environment variable on spaces correctly.
  • Pasted text corruption — Text pasting no longer corrupts when mouse support is active.
  • Plugin uninstall cleanup — Uninstalling marketplace plugins removes cached data from disk.

Removed

  • gemini-3-pro-preview — Model support removed.

Update with: npm install -g @github/copilot-cli@latest

Source: Copilot CLI