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page-prep【数据与研究】Prepare any webpage for clean interaction by detecting and removing disruptive overlays (cookie banners, GDPR consent, modals, popups, newsletter signups, paywalls, login walls). Uses a cached database of 300+ known CMPs (Consent-O-Matic + EasyList) combined with heuristic DOM scanning. Injects a self-contained script via playwright-cli. ALWAYS use t…
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playwright-cli --help for usage.
description: >-
Prepare any webpage for clean interaction by detecting and removing disruptive
overlays (cookie banners, GDPR consent, modals, popups, newsletter signups,
paywalls, login walls). Uses a cached database of 300+ known CMPs
(Consent-O-Matic + EasyList) combined with heuristic DOM scanning. Injects
a self-contained script via playwright-cli. ALWAYS use this skill before
taking screenshots, scraping content, or automating interaction on any
webpage that might have overlays blocking the view or preventing interaction.
Triggers on: page prep, clean page, remove overlays, dismiss cookie banner,
page blocked, overlay cleanup, consent banner, prepare page, unblock page,
clear popups, cookie popup.Detect and remove overlays (cookie banners, GDPR consent, modals, paywalls,
login walls) before screenshots, scraping, or browser automation.
Uses playwright-cli as the browser layer. Node 22+ required. No npm
dependencies. Run playwright-cli --help for the command reference.
The mode parameter controls dismiss strategy and verification depth.
Default is thorough. Callers can request quick mode in natural language
("use page-prep in quick mode") or the agent infers from context.
| Mode | Dismiss | Verification | Use case |
|---|---|---|---|
thorough (default) | Click-first, hide as fallback | DOM check + viewport screenshot | Persistent sessions, interactive work |
quick | Hide-only (CSS injection) | DOM check only | Ephemeral sessions, repeated evaluations |
if [[ -n "${CLAUDE_SKILL_DIR:-}" ]]; then
PAGE_PREP_DIR="${CLAUDE_SKILL_DIR}/scripts"
else
PAGE_PREP_DIR="$(dirname "$(command -v overlay-db.js 2>/dev/null || \
find ~/.claude -path "*/page-prep/scripts/overlay-db.js" -type f 2>/dev/null | head -1)")"
fi
Store in PAGE_PREP_DIR and prefix all commands below with
node "$PAGE_PREP_DIR/overlay-db.js".
Resolve PAGE_PREP_DIR using the block above. Verify the path is non-empty
before continuing.
node "$PAGE_PREP_DIR/overlay-db.js" refresh
Updates the local overlay database. Skips if cache < 7 days old; use --force to refresh now.
BUNDLE="$(node "$PAGE_PREP_DIR/overlay-db.js" bundle)"
Evaluate $BUNDLE in the active page via playwright-cli eval. Returns a detection report.
playwright-cli eval "$(node "$PAGE_PREP_DIR/overlay-db.js" bundle)"
Parse the detection report. Each overlay has a source field: "cmp-match" or "heuristic".
dismiss recipe. Use it directly.dismiss: null): compose a dismiss sequence — try Escape key,
then close buttons, then element removal (see Agent Fallback).Combine hide and dismiss recipes for all detected overlays into a single
manifest (see Recipe Manifest Format). Include the global scroll_fix if
scroll_locked is true.
Thorough mode (default) — click-first:
dismiss.steps sequentially.
Clicking sets consent cookies that persist across all tabs — overlay
will not reappear.dismiss: null): run the Agent Fallback
sequence (see below).scroll_fix if scroll_locked is true.hide.js rule).Quick mode — hide-only:
hide.js rules in one playwright-cli eval call.scroll_fix if scroll_locked is true.Find remaining position:fixed blockers the script didn't catch:
playwright-cli eval "JSON.stringify([...document.querySelectorAll('*')].filter(el => { var s = getComputedStyle(el); var r = el.getBoundingClientRect(); return s.position === 'fixed' && parseInt(s.zIndex, 10) > 1000 && (el.offsetWidth > 100 || el.offsetHeight > 100) && r.right > 0 && r.bottom > 0 && r.left < window.innerWidth && r.top < window.innerHeight; }).map(el => { var s = getComputedStyle(el); return { tag: el.tagName, id: el.id, cls: (el.className || '').slice(0, 50), z: s.zIndex, w: el.offsetWidth, h: el.offsetHeight }; }))"
This returns position:fixed elements with z-index > 1000, non-trivial
dimensions, and within the visible viewport — off-screen elements (e.g.
slide-in panels in their closed state) are excluded by the getBoundingClientRect()
bounds check. Ignore legitimate elements (navigation bars, toolbars) and
remove the rest:
document.querySelector('<selector>')?.remove().In quick mode, stop here. In thorough mode, continue to Step 9b.
playwright-cli -s <session> screenshot --filename .playwright-cli/page-prep-check.png
Then use the Read tool on .playwright-cli/page-prep-check.png to view it.
Note: --filename must be a path within the project root or .playwright-cli/ —
/tmp/ paths are not allowed. Do not pass the path as a positional argument;
that is interpreted as a CSS selector, not a file path.For multi-step sessions where new overlays may appear (SPAs, lazy-loaded banners), inject the watch mode snippet after cleanup (see Watch Mode).
See references/formats.md for the Detection Report and Recipe Manifest JSON schemas.
When dismiss is null, attempt in order:
[aria-label*="close" i], [aria-label*="dismiss" i], .close,
button:has(svg), button[class*="close"].document.querySelector('<selector>')?.remove().Consult known patterns for CMP-specific dismiss patterns when the above three steps fail.
Inject after cleanup for pages that load overlays dynamically (SPAs, lazy banners). See references/watch-mode.md for the full snippet.
Two modes: hide (default) auto-removes newly detected overlays via MutationObserver;
dismiss queues them in window.__pagePrep.pending() for agent processing.
Call window.__pagePrep.stop() when the session is done.
refresh --force if detection misses a known CMP — the database may be stale.node "$PAGE_PREP_DIR/overlay-db.js" status to check cache age and entry count.node "$PAGE_PREP_DIR/overlay-db.js" lookup <cmp-name> to check if a CMP is in
the database before injecting.