[STG-2484] chore: remove deprecated browserbase-cli skill; fix browse install cmd

[shrey150]

What

• Delete skills/browserbase-cli/ (SKILL.md, REFERENCE.md, LICENSE.txt).
• Remove the browserbase-cli plugin entry from .claude-plugin/marketplace.json.
• Remove the browserbase-cli row from the README skills table.

Why

The browserbase-cli skill documents the deprecated bb CLI (@browserbasehq/cli), which has 0 tracked installs. The canonical Browserbase CLI is now browse, already covered by the browser, functions, and other skills. Keeping browserbase-cli in the marketplace catalog ships a deprecated tool to users, so it's being removed.

Note on the "stale install command" fix

The task also called for replacing @browserbasehq/browse-cli with browse (npm install -g browse) in skills/browser/. On investigation, that string is already absent on main — it was fixed in #111 ("docs: rename bb/browse-cli references to unified browse CLI"). skills/browser/SKILL.md already uses npm install -g browse (frontmatter + the which browse || npm install -g browse bootstrap line). A repo-wide grep for @browserbasehq/browse-cli returns nothing, so no install-command change was needed — this PR is scoped to the deprecation only.

E2E Test Matrix

Command / flow	Observed output	Confidence / sufficiency
node scripts/validate-skills.mjs (repo's own validator, run by the validate-skills CI workflow)	16 skill(s) checked: 16 passed, 0 failed, 0 error(s), 0 warning(s) — browserbase-cli no longer listed	Proves the catalog is internally consistent after removal (no dangling README row / no orphaned skill dir) and that no other skill regressed. This is the exact check CI runs.
claude plugin validate . (Claude Code 2.1.202)	Validating marketplace manifest: .../.claude-plugin/marketplace.json → ✔ Validation passed	Proves the edited marketplace.json is still a valid marketplace manifest with browserbase-cli removed.
node -e "JSON.parse(...marketplace.json)" + list plugin names	valid JSON; remaining plugins: browse, functions, browser-trace, safe-browser, webmcp-gen	Confirms valid JSON (no trailing-comma breakage from the deletion) and browserbase-cli is gone from the plugin list.
grep -rn "@browserbasehq/browse-cli" skills/browser/	(no matches, exit 1)	Confirms the stale install string is absent post-change (it was already fixed in #111).
grep -rn "browserbase-cli" .claude-plugin/	(no matches, exit 1)	Confirms no residual browserbase-cli reference in the marketplace manifest.
grep -rn "browserbase-cli" . (excl. node_modules, .git)	(no matches)	Confirms zero residual references to the deleted skill anywhere in the repo.

No changeset: this is skill/catalog content, not published-package runtime behavior.

🤖 Generated with Claude Code

---

Note

Low Risk
Documentation and marketplace catalog only; no application code or auth paths change.

Overview
Removes the browserbase-cli skill from the plugin catalog so users are no longer pointed at deprecated bb / @browserbasehq/cli docs; the unified browse CLI remains covered by browser, functions, and related skills.

The change deletes skills/browserbase-cli/ (including SKILL.md and REFERENCE.md) and drops the matching plugin entry from .claude-plugin/marketplace.json plus the README skills table row. No install-command edits appear in this diff—the PR description notes the browse install path was already updated elsewhere.

^{Reviewed by Cursor Bugbot for commit 693e56c. Bugbot is set up for automated code reviews on this repo. Configure here.}