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Retire native Browser adapter in favor of configured MCP - #1024

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GraciousGazelles merged 18 commits into
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validation/w18616-browser-remove-5707c4fe
Nov 9, 2026
Merged

GraciousGazelles merged 18 commits into
mainfrom
validation/w18616-browser-remove-5707c4fe

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@GraciousGazelles

@GraciousGazelles GraciousGazelles commented Nov 6, 2026 •

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Why

The fork-owned native Browser implementation duplicates a capability available through configured MCP servers and adds carry cost across upstream syncs. This change removes that parallel Browser path while keeping Browser access available through the standalone Browser MCP server.

What changed

  • Remove the native Browser crate and its TUI/exec registration, local Browser configuration and doctor handling, and dedicated Playwright validation lane.
  • Leave Android and Desktop native adapters unchanged.
  • Keep the narrow stale-declaration filter for legacy unnamespaced browser_observe / browser_step or family=browser entries. Namespaced MCP tools with matching names remain ordinary dynamic tools.
  • Add no Codex-side MCP bridge. Existing native Browser profile data is untouched: there is no read, migration, substitution, or deletion. The standalone server may use isolated temporary profiles, so users may need to sign in again after a restart.

Compatibility boundary

This change does not claim that the standalone MCP route reproduces native paired action-plus-fresh-screenshot behavior, bounded inspection/control summaries, or persistent page continuity. Ordinary MCP can forward typed image content; Code Mode must explicitly forward an MCP image block with image(...). No live profile cutover, session stop, or user installation was performed.

Verification

For head 08ecf9995ec61ffd4826bf24db1a38bf9e619ce4 on base 91c771968988bf274b253b340a761580027cbb47, the existing PR watcher reported all checks terminal: 64 passed, 0 failed, 0 pending; GitHub reported the PR mergeable with no merge blockers. The Actions run is 42552613126. Separate hosted consumer coverage exercises the configured MCP path with disposable fixtures; it does not establish a live authenticated account/session or installed-artifact cutover.

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@GraciousGazelles
GraciousGazelles marked this pull request as ready for review November 9, 2026 04:00
@GraciousGazelles
GraciousGazelles added this pull request to the merge queue Nov 9, 2026
@github-merge-queue
github-merge-queue Bot removed this pull request from the merge queue due to failed status checks Nov 9, 2026
@GraciousGazelles
GraciousGazelles added this pull request to the merge queue Nov 9, 2026
@github-merge-queue
github-merge-queue Bot removed this pull request from the merge queue due to failed status checks Nov 9, 2026
…wser-remove-main-062073c9-20261109

# Conflicts:
#	.github/codeql/rust-computer-use-contract/queries/NativeVisualResponseCoverageWitness.qhelp
#	.github/codeql/rust-computer-use-contract/queries/NativeVisualResponseCoverageWitness.ql
#	.github/codeql/rust-computer-use-contract/queries/NativeVisualResponseFlow.qll
#	.github/codeql/rust-computer-use-contract/queries/NativeVisualResponseProductionCoverageMissing.ql
#	.github/codeql/rust-computer-use-contract/test/NativeVisualResponseProductionCoverage/NativeVisualResponseCoverageWitness.expected
#	.github/codeql/rust-computer-use-contract/test/NativeVisualResponseProductionCoverage/NativeVisualResponseProductionCoverageMissing.expected
#	.github/scripts/verify_native_visual_response_contract.py
#	codex-rs/core/src/tools/handlers/computer_use.rs
#	codex-rs/exec/src/lib.rs
#	codex-rs/tools/src/computer_use_tool.rs
#	codex-rs/tools/src/computer_use_tool_tests.rs
#	codex-rs/tools/src/lib.rs
#	codex-rs/tui/src/app_server_session.rs
#	codex-rs/tui/src/computer_use_provider.rs
@GraciousGazelles
GraciousGazelles added this pull request to the merge queue Nov 9, 2026
Merged via the queue into main with commit 97f6c6b Nov 9, 2026
217 of 224 checks passed
@GraciousGazelles
GraciousGazelles deleted the validation/w18616-browser-remove-5707c4fe branch November 9, 2026 19:39
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