3 Commits

Author SHA1 Message Date
Garry Tan c6e6a21d1a refactor: AI slop reduction with cross-model quality review (v0.16.3.0) (#941)
* refactor: add error-handling utility module with selective catches

safeUnlink (ignores ENOENT), safeKill (ignores ESRCH), isProcessAlive
(extracted from cli.ts with Windows support), and json() Response helper.
All catches check err.code and rethrow unexpected errors instead of
swallowing silently. Unit tests cover happy path + error code paths.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: replace defensive try/catches in server.ts with utilities

Replace ~12 try/catch sites with safeUnlink/safeKill calls in shutdown,
emergencyCleanup, killAgent, and log cleanup. Convert empty catches to
selective catches with error code checks. Remove needless welcome page
try/catches (fs.existsSync doesn't need wrapping). Reduces slop-scan
empty-catch locations from 11 to 8 and error-swallowing from 24 to 18.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: extract isProcessAlive and replace try/catches in cli.ts

Move isProcessAlive to shared error-handling module. Replace ~20
try/catch sites with safeUnlink/safeKill in killServer, connect,
disconnect, and cleanup flows. Convert empty catches to selective
catches. Reduces slop-scan empty-catch from 22 to 2 locations.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: remove unnecessary return await in content-security and read-commands

Remove 6 redundant return-await patterns where there's no enclosing
try block. Eliminates all defensive.async-noise findings from these files.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: add slop-scan config to exclude vendor files

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: replace empty catches with selective error handling in sidebar-agent

Convert 8 empty catch blocks to selective catches that check err.code
(ESRCH for process kills, ENOENT for file ops). Import safeUnlink for
cancel file cleanup. Unexpected errors now propagate instead of being
silently swallowed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: replace empty catches and mark pass-through wrappers in browser-manager

Convert 12 empty catch blocks to selective catches: filesystem ops check
ENOENT/EACCES, browser ops check for closed/Target messages, URL parsing
checks TypeError. Add 'alias for active session' comments above 6
pass-through wrapper methods to document their purpose (and exempt from
slop-scan pass-through-wrappers rule).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: selective catches in gstack-global-discover

Convert 8 defensive catch blocks to selective error handling. Filesystem
ops check ENOENT/EACCES, process ops check exit status. Unexpected errors
now propagate instead of returning silent defaults.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: selective catches in write-commands, cdp-inspector, meta-commands, snapshot

Convert ~27 empty/obscuring catches to selective error handling across 4
browse source files. CDP ops check for closed/Target/detached messages,
DOM ops check TypeError/DOMException, filesystem ops check ENOENT/EACCES,
JSON parsing checks SyntaxError. Remove dead code in cdp-inspector where
try/catch wrapped synchronous no-ops.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: selective catches in Chrome extension files

Convert empty catches and error-swallowing patterns across inspector.js,
content.js, background.js, and sidepanel.js. DOM catches filter
TypeError/DOMException, chrome API catches filter Extension context
invalidated, network catches filter Failed to fetch. Unexpected errors
now propagate.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: restore isProcessAlive boolean semantics, add safeUnlinkQuiet, remove unused json()

isProcessAlive now catches ALL errors and returns false (pure boolean
probe). Callers use it in if/while conditions without try/catch, so
throwing on EPERM was a behavior change that could crash the CLI.
Windows path gets its safety catch restored.

safeUnlinkQuiet added for best-effort cleanup paths where throwing on
non-ENOENT errors (like EPERM during shutdown) would abort cleanup.

json() removed — dead code, never imported anywhere.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: use safeUnlinkQuiet in shutdown and cleanup paths

Shutdown, emergency cleanup, and disconnect paths should never throw
on file deletion failures. Switched from safeUnlink (throws on EPERM)
to safeUnlinkQuiet (swallows all errors) in these best-effort paths.
Normal operation paths (startup, lock release) keep safeUnlink.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* revert: remove brittle string-matching catches and alias comments in browser-manager

Revert 6 catches that matched error messages via includes('closed'),
includes('Target'), etc. back to empty catches. These fire-and-forget
operations (page.close, bringToFront, dialog dismiss) genuinely don't
care about any error type. String matching on error messages is brittle
and will break on Playwright version bumps.

Remove 6 'alias for active session' comments that existed solely to
game slop-scan's pass-through-wrapper exemption rule.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* revert: remove brittle string-matching catches in extension files

Revert error-swallowing fixes in background.js and sidepanel.js that
matched error messages via includes('Failed to fetch'), includes(
'Extension context invalidated'), etc. In Chrome extensions, uncaught
errors crash the entire extension. The original catch-and-log pattern
is the correct choice for extension code where any error is non-fatal.

content.js and inspector.js changes kept — their TypeError/DOMException
catches are typed, not string-based.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: add slop-scan usage guidelines to CLAUDE.md

Instructions for using slop-scan to improve genuine code quality, not
to game metrics or hide that we're AI-coded. Documents what to fix
(empty catches on file/process ops, typed exception narrows, return
await) and what NOT to fix (string-matching on error messages, linter
gaming comments, tightening extension/cleanup catches). Includes
utility function reference and baseline score tracking.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: add slop-scan as diagnostic in test suite

Runs slop-scan after bun test as a non-blocking diagnostic. Prints
the summary (top files, hotspots) so you see the number without it
gating anything. Available standalone via bun run slop.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: slop-diff shows only NEW findings introduced on this branch

Runs slop-scan on HEAD and the merge-base, diffs results with
line-number-insensitive fingerprinting so shifted code doesn't create
false positives. Uses git worktree for clean base comparison. Shows
net new vs removed findings. Runs automatically after bun test.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: design doc for slop-scan integration in /review and /ship

Deferred plan for surfacing slop-diff findings automatically during
code review and shipping. Documents integration points, auto-fix vs
skip heuristics, and implementation notes.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: bump version and changelog (v0.16.3.0)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-10 17:13:15 -10:00
Garry Tan 03973c2fab fix: community security wave — 8 PRs, 4 contributors (v0.15.13.0) (#847)
* fix(bin): pass search params via env vars (RCE fix) (#819)

Replace shell string interpolation with process.env in gstack-learnings-search
to prevent arbitrary code execution via crafted learnings entries. Also fixes
the CROSS_PROJECT interpolation that the original PR missed.

Adds 3 regression tests verifying no shell interpolation remains in the bun -e block.

Co-authored-by: garagon <garagon@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(browse): add path validation to upload command (#821)

Add isPathWithin() and path traversal checks to the upload command,
blocking file exfiltration via crafted upload paths. Uses existing
SAFE_DIRECTORIES constant instead of a local copy. Adds 3 regression tests.

Co-authored-by: garagon <garagon@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(browse): symlink resolution in meta-commands validateOutputPath (#820)

Add realpathSync to validateOutputPath in meta-commands.ts to catch
symlink-based directory escapes in screenshot, pdf, and responsive
commands. Resolves SAFE_DIRECTORIES through realpathSync to handle
macOS /tmp -> /private/tmp symlinks. Existing path validation tests
pass with the hardened implementation.

Co-authored-by: garagon <garagon@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: add uninstall instructions to README (#812)

Community PR #812 by @0531Kim. Adds two uninstall paths: the gstack-uninstall
script (handles everything) and manual removal steps for when the repo isn't
cloned. Includes CLAUDE.md cleanup note and Playwright cache guidance.

Co-Authored-By: 0531Kim <0531Kim@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(browse): Windows launcher extraEnv + headed-mode token (#822)

Community PR #822 by @pieterklue. Three fixes:
1. Windows launcher now merges extraEnv into spawned server env (was
   only passing BROWSE_STATE_FILE, dropping all other env vars)
2. Welcome page fallback serves inline HTML instead of about:blank
   redirect (avoids ERR_UNSAFE_REDIRECT on Windows)
3. /health returns auth token in headed mode even without Origin header
   (fixes Playwright Chromium extensions that don't send it)

Also adds HOME/USERPROFILE fallback for cross-platform compatibility.

Co-Authored-By: pieterklue <pieterklue@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(browse): terminate orphan server when parent process exits (#808)

Community PR #808 by @mmporong. Passes BROWSE_PARENT_PID to the spawned
server process. The server polls every 15s with signal 0 and calls
shutdown() if the parent is gone. Prevents orphaned chrome-headless-shell
processes when Claude Code sessions exit abnormally.

Co-Authored-By: mmporong <mmporong@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(security): IPv6 ULA blocking, cookie redaction, per-tab cancel, targeted token (#664)

Community PR #664 by @mr-k-man (security audit round 1, new parts only).

- IPv6 ULA prefix blocking (fc00::/7) in url-validation.ts with false-positive
  guard for hostnames like fd.example.com
- Cookie value redaction for tokens, API keys, JWTs in browse cookies command
- Per-tab cancel files in killAgent() replacing broken global kill-signal
- design/serve.ts: realpathSync upgrade prevents symlink bypass in /api/reload
- extension: targeted getToken handler replaces token-in-health-broadcast
- Supabase migration 003: column-level GRANT restricts anon UPDATE scope
- Telemetry sync: upsert error logging
- 10 new tests for IPv6, cookie redaction, DNS rebinding, path traversal

Co-Authored-By: mr-k-man <mr-k-man@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(security): CSS injection guard, timeout clamping, session validation, tests (#806)

Community PR #806 by @mr-k-man (security audit round 2, new parts only).

- CSS value validation (DANGEROUS_CSS) in cdp-inspector, write-commands, extension inspector
- Queue file permissions (0o700/0o600) in cli, server, sidebar-agent
- escapeRegExp for frame --url ReDoS fix
- Responsive screenshot path validation with validateOutputPath
- State load cookie filtering (reject localhost/.internal/metadata cookies)
- Session ID format validation in loadSession
- /health endpoint: remove currentUrl and currentMessage fields
- QueueEntry interface + isValidQueueEntry validator for sidebar-agent
- SIGTERM->SIGKILL escalation in timeout handler
- Viewport dimension clamping (1-16384), wait timeout clamping (1s-300s)
- Cookie domain validation in cookie-import and cookie-import-browser
- DocumentFragment-based tab switching (XSS fix in sidepanel)
- pollInProgress reentrancy guard for pollChat
- toggleClass/injectCSS input validation in extension inspector
- Snapshot annotated path validation with realpathSync
- 714-line security-audit-r2.test.ts + 33-line learnings-injection.test.ts

Co-Authored-By: mr-k-man <mr-k-man@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: bump version and changelog (v0.15.13.0)

Community security wave: 8 PRs from 4 contributors (@garagon, @mr-k-man,
@mmporong, @0531Kim, @pieterklue). IPv6 ULA blocking, cookie redaction,
per-tab cancel signaling, CSS injection guards, timeout clamping, session
validation, DocumentFragment XSS fix, parent process watchdog, uninstall
docs, Windows fixes, and 750+ lines of security regression tests.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: garagon <garagon@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: 0531Kim <0531Kim@users.noreply.github.com>
Co-authored-by: pieterklue <pieterklue@users.noreply.github.com>
Co-authored-by: mmporong <mmporong@users.noreply.github.com>
Co-authored-by: mr-k-man <mr-k-man@users.noreply.github.com>
2026-04-06 00:47:04 -07:00
Garry Tan a1a933614c feat: sidebar CSS inspector + per-tab agents (v0.13.9.0) (#650)
* feat: CDP inspector module — persistent sessions, CSS cascade, style modification

New browse/src/cdp-inspector.ts with full CDP inspection engine:
- inspectElement() via CSS.getMatchedStylesForNode + DOM.getBoxModel
- modifyStyle() via CSS.setStyleTexts with headless page.evaluate fallback
- Persistent CDP session lifecycle (create, reuse, detach on nav, re-create)
- Specificity sorting, overridden property detection, UA rule filtering
- Modification history with undo support
- formatInspectorResult() for CLI output

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: browse server inspector endpoints + inspect/style/cleanup/prettyscreenshot CLI

Server endpoints: POST /inspector/pick, GET /inspector, POST /inspector/apply,
POST /inspector/reset, GET /inspector/history, GET /inspector/events (SSE).
CLI commands: inspect (CDP cascade), style (live CSS mod), cleanup (page clutter
removal), prettyscreenshot (clean screenshot pipeline).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: sidebar CSS inspector — element picker, box model, rule cascade, quick edit

Extension changes for the visual CSS inspector:
- inspector.js: element picker with hover highlight, CSS selector generation,
  basic mode fallback (getComputedStyle + CSSOM), page alteration handlers
- inspector.css: picker overlay styles (blue highlight + tooltip)
- background.js: inspector message routing (picker <-> server <-> sidepanel)
- sidepanel: Inspector tab with box model viz (gstack palette), matched rules
  with specificity badges, computed styles, click-to-edit quick edit,
  Send to Agent/Code button, empty/loading/error states

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: document inspect, style, cleanup, prettyscreenshot browse commands

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: auto-track user-created tabs and handle tab close

browser-manager.ts changes:
- context.on('page') listener: automatically tracks tabs opened by the user
  (Cmd+T, right-click open in new tab, window.open). Previously only
  programmatic newTab() was tracked, so user tabs were invisible.
- page.on('close') handler in wirePageEvents: removes closed tabs from the
  pages map and switches activeTabId to the last remaining tab.
- syncActiveTabByUrl: match Chrome extension's active tab URL to the correct
  Playwright page for accurate tab identity.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: per-tab agent isolation via BROWSE_TAB environment variable

Prevents parallel sidebar agents from interfering with each other's tab context.

Three-layer fix:
- sidebar-agent.ts: passes BROWSE_TAB=<tabId> env var to each claude process,
  per-tab processing set allows concurrent agents across tabs
- cli.ts: reads process.env.BROWSE_TAB and includes tabId in command request body
- server.ts: handleCommand() temporarily switches activeTabId when tabId is present,
  restores after command completes (safe: Bun event loop is single-threaded)

Also: per-tab agent state (TabAgentState map), per-tab message queuing,
per-tab chat buffers, verbose streaming narration, stop button endpoint.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: sidebar per-tab chat context, tab bar sync, stop button, UX polish

Extension changes:
- sidepanel.js: per-tab chat history (tabChatHistories map), switchChatTab()
  swaps entire chat view, browserTabActivated handler for instant tab sync,
  stop button wired to /sidebar-agent/stop, pollTabs renders tab bar
- sidepanel.html: updated banner text ("Browser co-pilot"), stop button markup,
  input placeholder "Ask about this page..."
- sidepanel.css: tab bar styles, stop button styles, loading state fixes
- background.js: chrome.tabs.onActivated sends browserTabActivated to sidepanel
  with tab URL for instant tab switch detection

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* test: per-tab isolation, BROWSE_TAB pinning, tab tracking, sidebar UX

sidebar-agent.test.ts (new tests):
- BROWSE_TAB env var passed to claude process
- CLI reads BROWSE_TAB and sends tabId in body
- handleCommand accepts tabId, saves/restores activeTabId
- Tab pinning only activates when tabId provided
- Per-tab agent state, queue, concurrency
- processingTabs set for parallel agents

sidebar-ux.test.ts (new tests):
- context.on('page') tracks user-created tabs
- page.on('close') removes tabs from pages map
- Tab isolation uses BROWSE_TAB not system prompt hack
- Per-tab chat context in sidepanel
- Tab bar rendering, stop button, banner text

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: resolve merge conflicts — keep security defenses + per-tab isolation

Merged main's security improvements (XML escaping, prompt injection defense,
allowed commands whitelist, --model opus, Write tool, stderr capture) with
our branch's per-tab isolation (BROWSE_TAB env var, processingTabs set,
no --resume). Updated test expectations for expanded system prompt.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: bump version and changelog (v0.13.9.0)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: add inspector message types to background.js allowlist

Pre-existing bug found by Codex: ALLOWED_TYPES in background.js was missing
all inspector message types (startInspector, stopInspector, elementPicked,
pickerCancelled, applyStyle, toggleClass, injectCSS, resetAll, inspectResult).
Messages were silently rejected, making the inspector broken on ALL pages.

Also: separate executeScript and insertCSS into individual try blocks in
injectInspector(), store inspectorMode for routing, and add content.js
fallback when script injection fails (CSP, chrome:// pages).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: basic element picker in content.js for CSP-restricted pages

When inspector.js can't be injected (CSP, chrome:// pages), content.js
provides a basic picker using getComputedStyle + CSSOM:
- startBasicPicker/stopBasicPicker message handlers
- captureBasicData() with ~30 key CSS properties, box model, matched rules
- Hover highlight with outline save/restore (never leaves artifacts)
- Click uses e.target directly (no re-querying by selector)
- Sends inspectResult with mode:'basic' for sidebar rendering
- Escape key cancels picker and restores outlines

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: cleanup + screenshot buttons in sidebar inspector toolbar

Two action buttons in the inspector toolbar:
- Cleanup (🧹): POSTs cleanup --all to server, shows spinner, chat
  notification on success, resets inspector state (element may be removed)
- Screenshot (📸): POSTs screenshot to server, shows spinner, chat
  notification with saved file path

Shared infrastructure:
- .inspector-action-btn CSS with loading spinner via ::after pseudo-element
- chat-notification type in addChatEntry() for system messages
- package.json version bump to 0.13.9.0

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* test: inspector allowlist, CSP fallback, cleanup/screenshot buttons

16 new tests in sidebar-ux.test.ts:
- Inspector message allowlist includes all inspector types
- content.js basic picker (startBasicPicker, captureBasicData, CSSOM,
  outline save/restore, inspectResult with mode basic, Escape cleanup)
- background.js CSP fallback (separate try blocks, inspectorMode, fallback)
- Cleanup button (POST /command, inspector reset after success)
- Screenshot button (POST /command, notification rendering)
- Chat notification type and CSS styles

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: update project documentation for v0.13.9.0

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: cleanup + screenshot buttons in chat toolbar (not just inspector)

Quick actions toolbar (🧹 Cleanup, 📸 Screenshot) now appears above the chat
input, always visible. Both inspector and chat buttons share runCleanup() and
runScreenshot() helper functions. Clicking either set shows loading state on
both simultaneously.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* test: chat toolbar buttons, shared helpers, quick-action-btn styles

Tests that chat toolbar exists (chat-cleanup-btn, chat-screenshot-btn,
quick-actions container), CSS styles (.quick-action-btn, .quick-action-btn.loading),
shared runCleanup/runScreenshot helper functions, and cleanup inspector reset.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: aggressive cleanup heuristics — overlays, scroll unlock, blur removal

Massively expanded CLEANUP_SELECTORS with patterns from uBlock Origin and
Readability.js research:
- ads: 30+ selectors (Google, Amazon, Outbrain, Taboola, Criteo, etc.)
- cookies: OneTrust, Cookiebot, TrustArc, Quantcast + generic patterns
- overlays (NEW): paywalls, newsletter popups, interstitials, push prompts,
  app download banners, survey modals
- social: follow prompts, share tools
- Cleanup now defaults to --all when no args (sidebar button fix)
- Uses !important on all display:none (overrides inline styles)
- Unlocks body/html scroll (overflow:hidden from modal lockout)
- Removes blur/filter effects (paywall content blur)
- Removes max-height truncation (article teaser truncation)
- Collapses empty ad placeholder whitespace (empty divs after ad removal)
- Skips gstack-ctrl indicator in sticky removal

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: disable action buttons when disconnected, no error spam

- setActionButtonsEnabled() toggles .disabled class on all cleanup/screenshot
  buttons (both chat toolbar and inspector toolbar)
- Called with false in updateConnection when server URL is null
- Called with true when connection established
- runCleanup/runScreenshot silently return when disconnected instead of
  showing 'Not connected' error notifications
- CSS .disabled style: pointer-events:none, opacity:0.3, cursor:not-allowed

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* test: cleanup heuristics, button disabled state, overlay selectors

17 new tests:
- cleanup defaults to --all on empty args
- CLEANUP_SELECTORS overlays category (paywall, newsletter, interstitial)
- Major ad networks in selectors (doubleclick, taboola, criteo, etc.)
- Major consent frameworks (OneTrust, Cookiebot, TrustArc, Quantcast)
- !important override for inline styles
- Scroll unlock (body overflow:hidden)
- Blur removal (paywall content blur)
- Article truncation removal (max-height)
- Empty placeholder collapse
- gstack-ctrl indicator skip in sticky cleanup
- setActionButtonsEnabled function
- Buttons disabled when disconnected
- No error spam from cleanup/screenshot when disconnected
- CSS disabled styles for action buttons

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: LLM-based page cleanup — agent analyzes page semantically

Instead of brittle CSS selectors, the cleanup button now sends a prompt to
the sidebar agent (which IS an LLM). The agent:
1. Runs deterministic $B cleanup --all as a quick first pass
2. Takes a snapshot to see what's left
3. Analyzes the page semantically to identify remaining clutter
4. Removes elements intelligently, preserving site branding

This means cleanup works correctly on any site without site-specific selectors.
The LLM understands that "Your Daily Puzzles" is clutter, "ADVERTISEMENT" is
junk, but the SF Chronicle masthead should stay.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: aggressive cleanup heuristics + preserve top nav bar

Deterministic cleanup improvements (used as first pass before LLM analysis):
- New 'clutter' category: audio players, podcast widgets, sidebar puzzles/games,
  recirculation widgets (taboola, outbrain, nativo), cross-promotion banners
- Text-content detection: removes "ADVERTISEMENT", "Article continues below",
  "Sponsored", "Paid content" labels and their parent wrappers
- Sticky fix: preserves the topmost full-width element near viewport top (site
  nav bar) instead of hiding all sticky/fixed elements. Sorts by vertical
  position, preserves the first one that spans >80% viewport width.

Tests: clutter category, ad label removal, nav bar preservation logic.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* test: LLM-based cleanup architecture, deterministic heuristics, sticky nav

22 new tests covering:
- Cleanup button uses /sidebar-command (agent) not /command (deterministic)
- Cleanup prompt includes deterministic first pass + agent snapshot analysis
- Cleanup prompt lists specific clutter categories for agent guidance
- Cleanup prompt preserves site identity (masthead, headline, body, byline)
- Cleanup prompt instructs scroll unlock and $B eval removal
- Loading state management (async agent, setTimeout)
- Deterministic clutter: audio/podcast, games/puzzles, recirculation
- Ad label text patterns (ADVERTISEMENT, Sponsored, Article continues)
- Ad label parent wrapper hiding for small containers
- Sticky nav preservation (sort by position, first full-width near top)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: prevent repeat chat message rendering on reconnect/replay

Root cause: server persists chat to disk (chat.jsonl) and replays on restart.
Client had no dedup, so every reconnect re-rendered the entire history.
Messages from an old HN session would repeat endlessly on the SF Chronicle tab.

Fix: renderedEntryIds Set tracks which entry IDs have been rendered. addChatEntry
skips entries already in the set. Entries without an id (local notifications)
bypass the check. Clear chat resets the set.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: agent stops when done, no focus stealing, opus for prompt injection safety

Three fixes for sidebar agent UX:
- System prompt: "Be CONCISE. STOP as soon as the task is done. Do NOT keep
  exploring or doing bonus work." Prevents agent from endlessly taking
  screenshots and highlighting elements after answering the question.
- switchTab(id, opts): new bringToFront option. Internal tab pinning
  (BROWSE_TAB) uses bringToFront: false so agent commands never steal
  window focus from the user's active app.
- Keep opus model (not sonnet) for prompt injection resistance on untrusted
  web pages. Remove Write from allowedTools (agent only needs Bash for $B).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* test: agent conciseness, focus stealing, opus model, switchTab opts

Tests for the three UX fixes:
- System prompt contains STOP/CONCISE/Do NOT keep exploring
- sidebar agent uses opus (not sonnet) for prompt injection resistance
- switchTab has bringToFront option, defaults to true (opt-out)
- handleCommand tab pinning uses bringToFront: false (no focus steal)
- Updated stale tests: switchTab signature, allowedTools excludes Write,
  narration -> conciseness, tab pinning restore calls

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* test: sidebar CSS interaction E2E — HN comment highlight round-trip

New E2E test (periodic tier, ~$2/run) that exercises the full sidebar
agent pipeline with CSS interaction:
1. Agent navigates to Hacker News
2. Clicks into the top story's comments
3. Reads comments and identifies the most insightful one
4. Highlights it with a 4px solid orange outline via style injection

Tests: navigation, snapshot, text reading, LLM judgment, CSS modification.
Requires real browser + real Claude (ANTHROPIC_API_KEY).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: sidebar CSS E2E test — correct idle timeout (ms not s), pipe stdio

Root cause of test failure: BROWSE_IDLE_TIMEOUT is in milliseconds, not
seconds. '600' = 0.6 seconds, server died immediately after health check.
Fixed to '600000' (10 minutes).

Also: use 'pipe' stdio instead of file descriptors (closing fds kills child
on macOS/bun), catch ConnectionRefused on poll retry, 4 min poll timeout
for the multi-step opus task.

Test passes: agent navigates to HN, reads comments, identifies most
insightful one, highlights it with orange CSS, stops. 114s, $0.00.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 12:51:05 -06:00