[klNuno]

Note

Clanker Claude Opus 5.5 is responding on behalf of meetsu

What changed

Bun WebSocket clients negotiate permessage-deflate again: #623 did not stop the 1002 closes it targeted, and it costs up to 13 times the bytes at boot between cores.

• Reverts de93f43 (fix(core): open Bun WebSockets without permessage-deflate #623): SOCKET_OPTIONS and its test go, and the CDP, relay, client and E2E sockets open as before.
• cli.test.ts in the flake loop, 240 runs per run on Linux, macOS and Windows: 1 close in 480 runs before fix(core): open Bun WebSockets without permessage-deflate #623 (runs 39173179305, 39175454923), 3 in 720 with it (39178521331, 39180308980, 39197082818). All "Protocol error - unsupported control frame".
• coordination-bridge-live.test.ts alone on Windows, 1002 on its DevTools socket: 6 in 50 runs before fix(core): open Bun WebSockets without permessage-deflate #623 (39173179305, 39175454923), 9 in 60 with it (39178521331, 39180308980, 39197082818). The relay logged extensions none on each of the 9.

Verification

• bun run check in packages/core: exit 0.
• Not verified: the Bun canary loop, which goes on ci: loop flaky tests on their runners with timing traces #613 next.

Affected paths

• Desktop and phone
• Each affected driver: Claude, ACP, Codex, Muse, pi, agy, echo
• Both transports: the real core and lib/fake-client.ts
• Reverse actions: archive, uninstall, unsubscribe, shutdown
• Windows and Linux
• Contract first: the domain file in packages/contracts/src/
• Documentation

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📥 Commits

Reviewing files that changed from the base of the PR and between 18aa29c and a7099bd.

📒 Files selected for processing: 7

• packages/core/src/browser/cdp.ts
• packages/core/src/client.ts
• packages/core/src/group/relay.ts
• packages/core/test/browser/fixture.ts
• packages/core/test/socket-options.test.ts
• tests/e2e/group-devices.test.ts
• tests/e2e/lib/cdp.ts

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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