Add browser session parity options to MCP

[IlyaasK]

Summary

• extend manage_browsers create with SDK 0.58 browser-session options: start_url, chrome_policy, gpu, and telemetry category controls
• add manage_browsers update for supported session settings: disable_default_proxy, proxy/profile updates, viewport updates, and telemetry updates
• replace the previous untyped create params object with SDK-derived request types and small builders for profile, viewport, and telemetry payloads

Validation

• bunx prettier --write src/lib/mcp/tools/browsers.ts
• git diff --check
• KERNEL_CLI_PROD_CLIENT_ID=dummy-prod KERNEL_CLI_STAGING_CLIENT_ID=dummy-staging KERNEL_CLI_DEV_CLIENT_ID=dummy-dev NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY=pk_test_Y2xlcmsuZXhhbXBsZS5jb20k bun run build
• localhost MCP smoke against http://127.0.0.1:3002/mcp with API_BASE_URL=http://127.0.0.1:3001: initialized MCP, verified manage_browsers was listed, created a short-lived headless browser with start_url, chrome_policy, telemetry, and viewport options, updated telemetry/viewport through the new update action, retrieved it, and deleted it

Notes

• Attempting disable_default_proxy: true through the same localhost MCP path reached the API but the local backend returned 500 proxy swap did not complete; browser cleanup succeeded. The MCP request wiring is present, but that backend behavior was not green in local smoke.

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Project	Deployment	Actions	Updated (UTC)
mcp	Ready	Preview, Comment	May 29, 2026 11:01pm