## Summary Import `packages/cli/**` exactly from the published `browse@0.9.6` V3 release, without changing its source or runtime behavior. This is intentionally a provenance checkpoint, not a line-by-line feature review. The imported source is kept runnable by a root, version-scoped pnpm override that resolves its unchanged Stagehand dependency to `3.7.1`. #2834 removes that override and starts the V4 migration. ## Exact-source provenance - Annotated tag: `browse@0.9.6` (`548c56407431db27823a212f53475443c7e8358d`) - Release commit: `1d49a95c0c230c346f8d50647e10303d6310fcd2` - Authoritative CLI tree: `b4048badce921cf54f199f96033d9a014ef977ec` - This PR's `HEAD:packages/cli` tree: `b4048badce921cf54f199f96033d9a014ef977ec` The tag's ignored README whitespace is retained too; formatting the import would invalidate the tree proof. ## Verification - Current remote head: `a77e1507b85e3c02553f36ead6ebd0237b0cccc6`, based on current `main`. - `HEAD:packages/cli` exactly equals the published V3 tree hash above. - pnpm 11 frozen install and the repository supply-chain release-age policy pass. - Browse lint, typecheck, and build pass; the full baseline suite passes: 25 files / 366 tests. - A fresh extension build still exactly matches the Go-embedded archive: SHA-256 `8efc7d171a625cca95c02d02d369b59435fae776cae6c7dd2f6fe72eb19785c0` on both files. This specifically verifies that adding the V3 dependency graph does not perturb the current V4 extension artifact. - This layer intentionally exercises V3 through the scoped Stagehand 3.7.1 override. V4 behavior starts in #2834. ## Stack (#2872) 1. **#2833 — exact Browse V3 baseline import** 2. #2834 — Stagehand V4 runtime and standard command parity 3. #2869 — CLI-owned cursor overlay 4. #2849 — CLI-private CDP sidecar; V3 network parity 5. #2835 — remove `--return-xpath`; supported V3 parity/release checkpoint 6. #2838 — eval and packaging integration 7. #2839 — managed Context names (fast-follow) 8. #2701 — shared Functions core consumer (fast-follow) ## Review and landing boundary Review this PR by verifying the tree hashes, dependency pin, root package wiring, and changeset—not by treating the imported V3 source as newly authored code. This head deliberately imports V3 code into the V4 repository and is not independently publishable. It lands only as the base of the complete stack. The framework network-event schema proposal in #2832 is intentionally outside this landing stack.

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Commits on Sep 15, 2026

chore(cli): import Browse V3 baseline (#2833)

Commits on Aug 10, 2026

Stagehand v4 (#2671)