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Enable --enable-host-access when MCP gateway is enabled#9519
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When MCP servers are configured (mcpg is enabled), the AWF (Agent Workflow Firewall) now includes the --enable-host-access flag. This allows the agent running inside the firewall container to access services on the host machine via host.docker.internal, which is required for the MCP gateway to function properly. This change affects all three engines that support the firewall: - Copilot engine - Claude engine - Codex engine The flag is only added when HasMCPServers() returns true, ensuring that workflows without MCP servers don't unnecessarily enable host access. Co-authored-by: Mossaka <5447827+Mossaka@users.noreply.github.com>
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[WIP] Add host access enabling for mcpg
Enable --enable-host-access when MCP gateway is enabled
Jan 10, 2026
Contributor
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🌑 The shadows whisper... Smoke Codex failed. The oracle requires further meditation... |
Contributor
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📰 DEVELOPING STORY: Smoke Copilot reports failed. Our correspondents are investigating the incident... |
Contributor
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💀 Blimey! Changeset Generator failed and walked the plank! No treasure today, matey! ☠️ |
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💫 TO BE CONTINUED... Smoke Claude failed! Our hero faces unexpected challenges... |
Contributor
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💫 TO BE CONTINUED... Smoke Claude failed! Our hero faces unexpected challenges... |
Contributor
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💀 Blimey! Changeset Generator failed and walked the plank! No treasure today, matey! ☠️ |
Contributor
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📰 DEVELOPING STORY: Smoke Copilot reports failed. Our correspondents are investigating the incident... |
Contributor
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🌑 The shadows whisper... Smoke Codex failed. The oracle requires further meditation... |
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AWF containers need
--enable-host-accessto reach the MCP gateway running on the host viahost.docker.internal.Changes
--enable-host-accessto AWF args whenHasMCPServers()returns trueExample
Before:
sudo -E awf --env-all --container-workdir "${GITHUB_WORKSPACE}" ...After (when MCP tools configured):
sudo -E awf --env-all --enable-host-access --container-workdir "${GITHUB_WORKSPACE}" ...Original prompt
💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.