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feat(panel): fully interactive CDP-screencast viewport — full switchover (v0.6.0)#14

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feat/interactive-panel
Jul 1, 2026
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feat(panel): fully interactive CDP-screencast viewport — full switchover (v0.6.0)#14
mabry1985 merged 2 commits into
mainfrom
feat/interactive-panel

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What

Replaces the entire dashboard-embed / screenshot panel approach with one fully drivable browser viewport. A live CDP screencast (event-driven JPEG frames, not a screenshot poll) is painted on a <canvas>, and operator mouse / keyboard / scroll are forwarded back into the page via Input.dispatch* — all over a gated same-origin WebSocket. You can click, type, and scroll the real browser from the console, alongside the agent, and it works on the host and a remote fleet member.

How

  • A second CDP client attaches to the same Chrome agent-browser drives (agent-browser get cdp-url). browser_stream.py bridges Page.startScreencast ⇆ the panel; the nav toolbar reuses the gated HTTP /nav route.
  • WebSocket auth (the subtle bit): the host's operator-bearer gate is HTTP-only middleware and does not cover WS handshakes. So the stream self-gates: the panel mints a single-use ticket from the gated POST /stream-ticket (bearer-checked) and presents it on the WS URL; the handler validates + burns it. Mirrors the host's own SSE-token pattern. Safe when gated, transparent when open.

Full switchover (no backward compatibility)

  • panel_mode gone — interactive is the only panel. Removed the screenshot minimal mode + /shot, and the full dashboard-embed page.
  • Removed the browser_dashboard tool (16 tools now), lifecycle.py (the dashboard daemon boot/shutdown surface), and the panel's /dashboard control routes.
  • Removed config: panel_mode, dashboard_port, manage_dashboard. The panel talks CDP directly and never needs agent-browser's separate dashboard daemon.

Validation

Exercised the production routes against the real agent-browser binary + live browser: bad ticket refused → ticket minted → real JPEG frame + metadata streamed over the WS → typed text landed in a real input → a mapped click fired the button. 34 host-free tests pass, ruff clean (CDP parsing, page-target selection, full input→CDP translation, ticket single-use/expiry, the panel page, WS reject/accept).

Files

  • new browser_stream.py (CDP bridge + ticket auth), tests/test_browser_stream.py
  • browser_panel.py (interactive page + WS route), tools.py, __init__.py, manifest/pyproject/README/CHANGELOG
  • removed lifecycle.py

🤖 Generated with Claude Code

…ver (v0.6.0)

Replace the entire dashboard-embed / screenshot panel approach with a single
fully drivable browser viewport. A live CDP screencast (event-driven JPEG frames)
is painted on a <canvas> and operator mouse/keyboard/scroll are forwarded back via
Input.dispatch*, all over a gated same-origin WebSocket — so it works on the host
AND a remote fleet member, and you can drive the page alongside the agent.

New:
- browser_stream.py — a second-CDP-client bridge (Page.startScreencast out, input
  in) + single-use ticket auth. resolve_page_target/pick_page_target/input_to_cdp
  are pure + host-free-tested.
- browser_panel.py — the interactive canvas page + gated POST /stream-ticket and the
  self-gated WS /stream. WS auth: the host's operator-bearer middleware is HTTP-only
  and skips WS handshakes, so the panel mints a ticket over the gated HTTP route and
  presents it on the WS URL; the handler validates + burns it.

Full switchover (no backward compatibility):
- Removed panel_mode (interactive is the only panel), the screenshot `minimal` mode
  and /shot, and the `full` dashboard-embed page.
- Removed the browser_dashboard tool (16 tools now), lifecycle.py (dashboard daemon
  boot/shutdown surface), and the /dashboard control routes.
- Removed config: panel_mode, dashboard_port, manage_dashboard.

Validated end-to-end against the real agent-browser binary through the production
routes (bad ticket refused, ticket minted, real frame streamed, keys + click land).
34 host-free tests pass; ruff clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@protoquinn

protoquinn Bot commented Jul 1, 2026

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👀 Quinn is reviewing — verdict (PASS / WARN / FAIL) + findings to follow.

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QA Audit — PR #14 | feat(panel): fully interactive CDP-screencast viewport — full switchover (v0.6.0)

VERDICT: WARN


CI Status

  • test: queued ⏳

Diff Review

  • Clean architectural switchover: panel_mode gone, lifecycle.py removed, browser_dashboard tool removed, dashboard_port/manage_dashboard config removed — consistent across __init__.py, README, CHANGELOG.
  • Single-use ticket pattern for WS auth mirrors the host's SSE-token approach — sound by design. Ticket is minted via bearer-gated POST /stream-ticket, validated + burned on WS connect.
  • 34 host-free tests added, ruff clean per PR description.

Observations

  • GAP: clawpatch structural review unavailable for this repo (HTTP 500) — cross-file patterns in browser_stream.py + browser_panel.py not structurally verified.
  • GAP: diff truncated at 200/1522 lines — the bulk of browser_panel.py rewrite and the new browser_stream.py are not visible to this reviewer. Ticket validation logic, CDP input dispatch, and WS handler implementation could not be verified directly.
  • GAP: path_exists not available in tool schema — cannot confirm browser_stream.py and tests/test_browser_stream.py exist at the PR head.
  • LOW: No unresolved CodeRabbit threads — prior automated review is clean.
  • LOW: CI still queued. Formal PASS/FAIL deferred until test completes.

Summary: The architectural approach (single-use ticket, CDP screencast, Input.dispatch*) is sound and the removals are clean. However, the core implementation in browser_stream.py could not be reviewed due to tooling limitations. Recommend the author ensure the ticket-burn is atomic (validate-then-burn, not the reverse) and that CDP input dispatch sanitizes forwarded coordinates/keys. Re-review once CI is terminal-green.

— Quinn, QA Engineer

@protoquinn

protoquinn Bot commented Jul 1, 2026

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Submitted COMMENT review on #14.

The empty viewport was a dead end. Now, when no page is open, the panel shows a
Start button, and a new `home_url` config sets the page it opens to:
- home_url set  → the panel auto-opens it once; the button reads "Open <host>"
- home_url blank → the button opens about:blank (no auto-open)

home_url is injected as a JS string literal via json.dumps + `<`→< so a
value containing `</script>` can't break out of the inline script. Editable in
Settings ▸ Plugins. 35 tests pass; ruff clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

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CI terminal-green, no blockers on prior review — auto-approving on green (#748).

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QA Audit — PR #14 | feat(panel): fully interactive CDP-screencast viewport — full switchover (v0.6.0)

VERDICT: WARN (non-terminal — CI still queued, re-review after CI settles)


CI Status

  • test: queued

Diff Review

  • Clean architectural switchover: old dashboard-embed (lifecycle.py, panel_mode, /shot, browser_dashboard tool) removed entirely — no backward-compat shims left cruft behind.
  • New browser_stream.py bridges CDP screencast ↔ WS; ticket auth pattern (bearer-gated POST /stream-ticket → single-use ticket → validated + burned on WS connect) is well-reasoned and mirrors existing SSE-token pattern.
  • browser_panel.py rewritten as interactive canvas + nav/stream routes; __init__.py simplified (lifecycle surface removed, log line trimmed).
  • 34 tests + ruff clean per PR description; new tests/test_browser_stream.py present.

Observations

  • LOW: clawpatch structural review unavailable for this repo (502 — checkout cache couldn't resolve main ref). Manual review of visible diff + PR description used instead.
  • LOW: Second CDP client attaches to Chrome for the screencast bridge — inherent to the architecture; no obvious alternative. Risk is bounded: CDP URL is gated behind agent-browser get cdp-url.
  • NOTE: CI test suite still queued. Will re-assess on terminal completion. The PR body claims 34 host-free tests pass — awaiting CI confirmation.

— Quinn, QA Engineer

@protoquinn

protoquinn Bot commented Jul 1, 2026

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Submitted COMMENT review on #14. CI is still queued — I'll re-assess for terminal PASS/FAIL when the test suite completes and the re-dispatch fires.

@mabry1985 mabry1985 merged commit 86af600 into main Jul 1, 2026
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