v0.54.0 — Main chat requests now intercepted by headroom

What's new

Fix: Main chat requests now routed through headroom

Previous versions only compressed inline completions (the ghost-text suggestions). Main chat requests (everything in the Copilot Chat panel) were silently falling back to WebSocket transport, bypassing the HTTP proxy interceptor entirely — resulting in 0% token savings for chat.

This release forces HTTP transport whenever github.copilot.chat.proxy.url is configured, ensuring all chat traffic flows through headroom.

Huge thanks to @boston008 for identifying the root cause — WebSocket transport in chatMLFetcher.ts bypassing the HTTP interceptor — and providing the fix.

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Install

Quick install (macOS)

bash <(curl -fsSL https://raw.githubusercontent.com/damnthonyy/vscode/main/scripts/install-macos.sh)

Quick install (WSL / Linux)

bash <(curl -fsSL https://raw.githubusercontent.com/damnthonyy/vscode/main/scripts/install-wsl.sh)

Manual install

Download copilot-proxy.vsix below, then:

code --install-extension copilot-proxy.vsix --force

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Required VS Code settings

Open Ctrl/Cmd+Shift+P → Open User Settings (JSON) and add:

{
  "github.copilot.chat.proxy.url": "http://localhost:8787/v1",
  "extensions.autoUpdate": "off"
  "extensions.autoCheckUpdates": "off"
}

Note: extensions.autoUpdate: false and extensions.autoCheckUpdates: false prevent the VS Code marketplace from silently replacing this patched extension with the official one.

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Start headroom (Copilot mode)

export GITHUB_TOKEN=$(gh auth token)
docker compose -f docker-compose.yml -f docker-compose.copilot.yml up headroom-proxy

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Changelog

• v0.54.0 — Force HTTP transport when headroom proxy URL is set, fixing 0% savings on main chat (credit: @boston008)
• v0.53.3 — WSL remote install fix + macOS install script
• v0.53.2 — Initial release with ProxyInterceptingFetcherService and Docker VSIX build pipeline