gstack/browse
Garry Tan 13f7e351da
feat: buildGStackLaunchArgs — Pack 1 cmdline-switch construction for gbrowser
New stealth.ts export that turns the GSTACK_* env vars (already populated
by gbrowser's gbd from host_profile.go) into the --gstack-* cmdline
switches the Pack 1 Chromium patches read at WebGL getParameter,
NavigatorUA::userAgentData, NavigatorConcurrentHardware::hardwareConcurrency,
and NavigatorDeviceMemory::deviceMemory time.

Wired into all three launchArgs sites: launch() (headless), launchHeaded()
(real product path), and handoff() (headless → headed re-launch).

Mapping:
  GSTACK_GPU_VENDOR      → --gstack-gpu-vendor
  GSTACK_GPU_RENDERER    → --gstack-gpu-renderer
  GSTACK_PLATFORM        → --gstack-ua-platform (with mapping:
                            MacARM/MacIntel → macOS, Win32 → Windows,
                            Linux x86_64 → Linux)
  GSTACK_GPU_CHIPSET     → --gstack-ua-model
  GSTACK_HW_CONCURRENCY  → --gstack-hw-concurrency
  GSTACK_DEVICE_MEMORY   → --gstack-device-memory

Each switch is emitted only when its env var is non-empty — empty
values fall through to the patch's "no override" path, which returns
the real Chromium native value. Safe to ship on Chromium builds
without the Pack 1 patches applied (zero behavior change).

The patches themselves live in the gbrowser repo at chromium/patches/
{webgl-vendor-spoof,ua-client-hints-stealth,worker-navigator-stealth}.patch.
Both halves (gstack arg construction + gbrowser C++ patches) must
land + Chromium rebuild before the spoof reaches the WebGL/UA-CH/
hardware accessors. Currently dormant until then.

Tests (browse/test/stealth-layer-c.test.ts):
  7 new buildGStackLaunchArgs cases — empty env, all-populated, partial,
  platform mapping (MacARM/MacIntel/Win32/Linux), unrecognized platform
  fallthrough, vendor-with-spaces escape-safety.
  All 32 stealth/browser-manager tests pass.

For GBrowser specifically: gstack-side half of the Pack 1 flag plumbing.
gbrowser repo will bump the submodule pointer to this commit, then re-run
bun run test/anti-bot/evidence-run.ts to verify creepjs's "33% headless"
score drops after Pack 1 + Chromium rebuild.
2026-05-19 11:45:45 -07:00
..
bin feat: multi-agent support — gstack works on Codex, Gemini CLI, and Cursor (v0.9.0) (#226) 2026-03-19 18:20:50 -07:00
scripts fix: ngrok Windows build + close CI error-swallowing gap (v0.18.0.1) (#1024) 2026-04-16 13:49:04 -07:00
src feat: buildGStackLaunchArgs — Pack 1 cmdline-switch construction for gbrowser 2026-05-19 11:45:45 -07:00
test feat: buildGStackLaunchArgs — Pack 1 cmdline-switch construction for gbrowser 2026-05-19 11:45:45 -07:00
PLAN-snapshot-dropdown-interactive.md fix: snapshot -i auto-detects dropdown/popover interactive elements (#845) 2026-04-05 22:57:45 -07:00
SKILL.md v1.31.0.0 fix: delete AskUserQuestion fallback (root cause of forever war) + harness primitives (#1390) 2026-05-09 17:01:13 -07:00
SKILL.md.tmpl v1.28.0.0 feat: browse --headed/--proxy/--navigate + gstack/llms.txt + webdriver-only stealth (#1363) 2026-05-07 20:14:59 -07:00