Remove Chrome workflow companion

[senamakel]

Summary

• Remove the Chrome workflow companion feature, Rust modules and CLI binary, MV3 extension package, protocol fixtures, documentation, end-to-end tests, and Chrome-specific CI job.
• Prune the Axum/WebSocket dependency graph and related lockfile entries.
• Keep reqwest scoped to the optional host-caps feature and development tests; testing-only dependencies remain under [dev-dependencies] rather than a public feature.

Validation

• cargo fmt --all -- --check
• cargo clippy --workspace --all-targets --all-features -- -D warnings
• cargo test --workspace --all-targets --all-features
• git diff --check

Summary by CodeRabbit

• Breaking Changes

  • Removed the Chrome browser companion, including its extension, companion CLI, browser relay, and related automation workflow.
  • Removed browser companion installation, pairing, tab-sharing, and workflow-running capabilities.
  • Browser automation remains available as a host-managed capability through the existing tool invocation interface.

• Documentation

  • Updated the README and changelog to reflect the removal.
  • Removed Chrome companion setup and troubleshooting documentation.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-08-30T14:09:07.131781Z	4d6b874	PR opened

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: ec3cf50e-f64d-4def-8585-f7fa11fd01c0

📥 Commits

Reviewing files that changed from the base of the PR and between 7560cea and 4d6b874.

⛔ Files ignored due to path filters (10)

• Cargo.lock is excluded by !**/*.lock
• extension/artifacts/tinyflows-chrome-extension-0.1.0.zip is excluded by !**/*.zip
• extension/dist/background.js is excluded by !**/dist/**
• extension/dist/manifest.json is excluded by !**/dist/**
• extension/dist/popup.html is excluded by !**/dist/**
• extension/dist/popup.js is excluded by !**/dist/**
• extension/dist/sidepanel.html is excluded by !**/dist/**
• extension/dist/sidepanel.js is excluded by !**/dist/**
• extension/dist/ui.css is excluded by !**/dist/**
• extension/package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (62)

• .github/workflows/ci.yml
• CHANGELOG.md
• Cargo.toml
• README.md
• docs/chrome-extension.md
• extension/.gitignore
• extension/README.md
• extension/artifacts/tinyflows-chrome-extension-0.1.0.zip.sha256
• extension/eslint.config.js
• extension/manifest.json
• extension/package.json
• extension/playwright.config.ts
• extension/scripts/build.mjs
• extension/scripts/package.mjs
• extension/src/background.ts
• extension/src/cdp.ts
• extension/src/errors.ts
• extension/src/popup.html
• extension/src/popup.ts
• extension/src/protocol.ts
• extension/src/relay.ts
• extension/src/sidepanel.html
• extension/src/sidepanel.ts
• extension/src/tab-manager.ts
• extension/src/ui.css
• extension/tests/cdp.test.ts
• extension/tests/e2e/extension.spec.ts
• extension/tests/errors.test.ts
• extension/tests/protocol.test.ts
• extension/tests/relay.test.ts
• extension/tests/tab-manager.test.ts
• extension/tsconfig.json
• extension/vitest.config.ts
• protocol/browser-v1.schema.json
• protocol/fixtures/browser-cancel.v1.json
• protocol/fixtures/browser-request.v1.json
• protocol/fixtures/browser-response.v1.json
• protocol/fixtures/tab-shared.v1.json
• src/browser/mod.rs
• src/browser/protocol.rs
• src/browser/protocol_tests.rs
• src/browser/routing.rs
• src/browser/routing_tests.rs
• src/companion/auth.rs
• src/companion/auth_tests.rs
• src/companion/control.rs
• src/companion/control_tests.rs
• src/companion/host.rs
• src/companion/mod.rs
• src/companion/relay.rs
• src/companion/relay_tests.rs
• src/companion/server.rs
• src/companion/server/api.rs
• src/companion/server/handlers.rs
• src/companion/server_tests.rs
• src/companion/tabs.rs
• src/companion/tabs_tests.rs
• src/lib.rs
• src/main.rs
• src/testkit/tools/error.rs
• tests/browser_routing_e2e.rs
• tests/cli_e2e.rs

💤 Files with no reviewable changes (58)

• extension/artifacts/tinyflows-chrome-extension-0.1.0.zip.sha256
• extension/tests/errors.test.ts
• src/browser/routing_tests.rs
• extension/src/sidepanel.html
• src/lib.rs
• extension/src/ui.css
• src/companion/server_tests.rs
• tests/browser_routing_e2e.rs
• src/companion/tabs.rs
• extension/tsconfig.json
• src/companion/relay_tests.rs
• protocol/browser-v1.schema.json
• protocol/fixtures/browser-cancel.v1.json
• extension/src/relay.ts
• extension/vitest.config.ts
• extension/src/popup.html
• protocol/fixtures/browser-request.v1.json
• extension/scripts/build.mjs
• src/companion/relay.rs
• src/companion/mod.rs
• src/companion/control.rs
• extension/src/background.ts
• src/companion/server.rs
• src/main.rs
• extension/playwright.config.ts
• extension/src/cdp.ts
• extension/src/sidepanel.ts
• src/browser/mod.rs
• extension/manifest.json
• src/companion/auth_tests.rs
• extension/tests/relay.test.ts
• protocol/fixtures/tab-shared.v1.json
• extension/package.json
• docs/chrome-extension.md
• src/companion/tabs_tests.rs
• extension/README.md
• src/companion/server/handlers.rs
• .github/workflows/ci.yml
• extension/scripts/package.mjs
• src/companion/host.rs
• extension/tests/tab-manager.test.ts
• src/browser/protocol.rs
• extension/src/tab-manager.ts
• extension/eslint.config.js
• extension/src/popup.ts
• extension/tests/protocol.test.ts
• extension/tests/cdp.test.ts
• extension/.gitignore
• src/companion/server/api.rs
• extension/src/protocol.ts
• src/companion/control_tests.rs
• tests/cli_e2e.rs
• src/browser/protocol_tests.rs
• extension/tests/e2e/extension.spec.ts
• protocol/fixtures/browser-response.v1.json
• extension/src/errors.ts
• src/companion/auth.rs
• src/browser/routing.rs

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The pull request removes the Chrome workflow companion, its CLI, extension package, browser relay protocols, companion server, dedicated tests, CI job, package feature, and related documentation. Browser automation remains exposed through the existing host capability model.

Changes

Chrome companion removal

Layer / File(s)	Summary
Package and public surface cleanup Cargo.toml, src/lib.rs, README.md, CHANGELOG.md, src/testkit/tools/error.rs	Removes the chrome-extension feature, binary target, optional axum dependency, Chrome build instructions, module feature gates, and related references.
Host routing and companion server removal src/browser/*, src/companion/*, tests/browser_routing_e2e.rs	Removes browser routing, relay authentication, companion control, WebSocket server, tab registry, workflow runner integration, and their tests.
Extension and protocol artifact removal extension/*, protocol/fixtures/*	Removes the extension project, build and test configuration, browser executor, relay client, UI, and protocol fixtures.

Estimated code review effort: 4 (Complex) | ~45 minutes

Merge Risk: ⚪ Minimal · up to 4d6b8

This change removes the Chrome workflow companion and its associated code, assets, tests, documentation, and CI integration; no actionable merge-blocking risk remains beyond normal checks and review.

Suggested reviewers: graycyrus

Poem

A rabbit packs the browser away

The relay folds its wires today
No tabs hop through the companion door
Host tools remain, as before
Clean crates thump in the meadow floor 🐇

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the primary change: removal of the Chrome workflow companion and its related components.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1 files. (3 skipped: 3 unsupported.)

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