[Jason Morse (JasonVMo)]

Platforms Impacted

• iOS
• macOS
• win32 (Office)
• windows
• android

Description of changes

Depends on #4466 via its branch. Native stack metadata is not registered while
the parent has auto-merge enabled.

• Enforce immutable accessible, physical, or compatibility input policy per WebDriver session, including raw routes and agent actions.
• Record input-mechanism receipts and attribute them to declared Jasmine and Storybook cases.
• Add strict native clear behavior and named accessibility actions; reject WDIO setValue before its clear step in accessible sessions.
• Update package and native protocol documentation and add patch changesets.

Serialized --input all and managed macOS CI lanes remain follow-up work.

Verification

On rebased commit 9d3e11516:

• Passed: yarn clean-lage-cache && yarn lage buildci (178 tasks). The first attempt failed in Storybook desktop because the rebase added ws without updating the local install; yarn install --immutable restored it before the successful rerun.
• Passed: yarn lage test-links --verbose --grouped (90 tasks).
• Passed: yarn change:check.
• Passed: yarn test StorybookChannelOrchestrator --runInBand and yarn test serverIntegration --runInBand in packages/agentic/storybook-desktop (29 passed, 2 skipped).
• Passed: FURN_NATIVE_DRIVER_TEST=1 yarn test --runInBand in packages/agentic/desktop-driver (894 passed, 43 skipped; ad hoc signing).

Windows and Win32 native qualification and stable-signing macOS TCC continuity
were not run. Hosted PR checks are in progress.

Before	After
Input selection relied on host masks and click mode, with no case-level delivery receipts; setValue could clear before a rejected keyboard write.	Sessions enforce their requested policy before dispatch, cases report delivered mechanisms, and accessible setValue rejects before clearing.

Pull request checklist

This PR has considered (when applicable):

• Automated Tests
• Documentation and examples
• Keyboard Accessibility
• Voiceover
• Internationalization and Right-to-left Layouts

[github-actions]

Bundle size report

Tree-shaken, minified production esbuild bundles with React and React Native runtimes externalized.

Scenario	Modules-Mac (Δ)	Modules-Win (Δ)	Size-Mac (Δ)	Size-Win (Δ)
components-button	79 (+1)	80 (+1)	72.78k (-842b)	72.71k (-842b)
components-catalog	228 (+1)	229 (+1)	228.46k (-855b)	228.38k (-855b)
design-themed-root	55 (+4)	56 (+4)	56.26k (+998b)	56.18k (+998b)
design-color-lib	6 (+0)	6 (+0)	6.27k (+0b)	6.27k (+0b)
design-theme-state-legacy-source	49 (+1)	50 (+1)	52.96k (-841b)	52.89k (-841b)
design-legacy-theme	42 (+0)	42 (+0)	39.11k (+0b)	42.91k (+0b)
design-legacy-theme-from-flex	58 (+4)	58 (+4)	60.70k (+824b)	64.51k (+822b)
design-fluent-light-theme	7 (+0)	7 (+0)	18.74k (+0b)	22.59k (+0b)
design-fluent-theme	35 (+0)	35 (+0)	27.46k (+4b)	31.25k (-1b)
design-fluent-hc-theme	32 (+0)	32 (+0)	27.34k (+0b)	31.13k (+0b)
design-flex-theme	29 (-4)	29 (-4)	14.30k (-9.07k)	14.29k (-9.07k)
design-flex-cool-theme	26 (New)	26 (New)	12.51k (New)	12.50k (New)
design-flex-warm-theme	26 (-7)	26 (-7)	12.28k (-11.15k)	12.27k (-11.15k)

The job is advisory: size changes are reported but do not fail the pull request. Bundle or analysis errors still fail.

---

View bundle-size workflow run