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Garry Tan dd84bdb7d9
fix(browse): guard full-page screenshots against Anthropic vision API >2000px brick (#1214) 
Full-page screenshots of tall pages routinely exceeded 2000px on the
longest dimension, silently bricking the agent's session: the
resulting base64 reached the Anthropic vision API which rejected the
oversized image, leaving the agent burning turns on a useless blob
with no stderr trace from the browse side.

Adds browse/src/screenshot-size-guard.ts as a shared helper:
- guardScreenshotBuffer(buf) → downscales in-memory if max(w,h) > 2000
- guardScreenshotPath(path) → file-mode variant that rewrites in place
- Aspect ratio preserved via sharp's resize fit:inside
- Stderr diagnostic on any downscale so callers can see when it fired
- Lazy sharp import so non-screenshot paths pay no startup cost

Wires the guard into all three full-page callsites codex review
flagged:
- browse/src/snapshot.ts: annotated + heatmap fullPage captures
- browse/src/meta-commands.ts: screenshot command (path + base64
  fullPage modes) plus the responsive 3-viewport sweep
- browse/src/write-commands.ts: prettyscreenshot fullPage path

Covers seven unit cases (pass-through, downscale, aspect ratio,
exactly-2000px edge, file-mode rewrite) plus a static invariant test
that fails the build if any of the three callsites stops importing the
guard.

Closes #1214.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 		2026-05-18 21:28:56 -07:00
..
activity.ts feat: content security — 4-layer prompt injection defense for pair-agent (#815) 2026-04-06 14:41:06 -07:00
audit.ts feat(browse): Puppeteer parity — load-html, screenshot --selector, viewport --scale, file:// (v1.1.0.0) (#1062) 2026-04-18 23:25:33 +08:00
browse-client.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
browser-manager.ts v1.34.0.0 feat: gstack consumable as submodule (factory-export API + AUTH_TOKEN env + import.meta.main gate) (#1472) 2026-05-13 12:22:30 -04:00
browser-skill-commands.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
browser-skill-write.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
browser-skills.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
buffers.ts feat: Phase 3.5 — cookie import, QA testing, team retro (v0.3.1) (#29) 2026-03-13 00:31:41 -07:00
bun-polyfill.cjs fix: Windows support — Node.js server fallback for Playwright (#255) 2026-03-20 12:22:11 -07:00
cdp-allowlist.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
cdp-bridge.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
cdp-commands.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
cdp-inspector.ts refactor: AI slop reduction with cross-model quality review (v0.16.3.0) (#941) 2026-04-10 17:13:15 -10:00
claude-bin.ts v1.24.0.0 feat: cross-platform hardening — curated Windows lane + Bun.which resolver + path-portability helper (#1252) 2026-05-01 07:21:28 -07:00
cli.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
commands.ts v1.28.0.0 feat: browse --headed/--proxy/--navigate + gstack/llms.txt + webdriver-only stealth (#1363) 2026-05-07 20:14:59 -07:00
config.ts v1.34.0.0 feat: gstack consumable as submodule (factory-export API + AUTH_TOKEN env + import.meta.main gate) (#1472) 2026-05-13 12:22:30 -04:00
content-security.ts v1.38.1.0 fix wave: surrogate-safe page captures (#1440), Implementation Tasks across review skills (#1454), root-level artifact patterns (#1452) (#1504) 2026-05-14 21:46:50 -07:00
cookie-import-browser.ts security: tunnel dual-listener + SSRF + envelope + path wave (v1.6.0.0) (#1137) 2026-04-21 21:58:27 -07:00
cookie-picker-routes.ts community wave: 6 PRs + hardening (v0.18.1.0) (#1028) 2026-04-17 00:45:13 -07:00
cookie-picker-ui.ts fix: cookie picker auth token leak (v0.15.17.0) (#904) 2026-04-08 10:10:13 -07:00
domain-skill-commands.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
domain-skills.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
error-handling.ts refactor: AI slop reduction with cross-model quality review (v0.16.3.0) (#941) 2026-04-10 17:13:15 -10:00
file-permissions.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
find-browse.ts fix(windows): .exe glob in .gitignore + .exe extension resolution in find-browse (#1554) 2026-05-18 21:00:33 -07:00
media-extract.ts feat: browser data platform for AI agents (v0.16.0.0) (#907) 2026-04-08 00:41:55 -07:00
meta-commands.ts fix(browse): guard full-page screenshots against Anthropic vision API >2000px brick (#1214) 2026-05-18 21:28:56 -07:00
network-capture.ts feat: browser data platform for AI agents (v0.16.0.0) (#907) 2026-04-08 00:41:55 -07:00
path-security.ts fix: security wave 3 — 12 fixes, 7 contributors (v0.16.4.0) (#988) 2026-04-13 07:49:37 -10:00
platform.ts fix: Windows support — Node.js server fallback for Playwright (#255) 2026-03-20 12:22:11 -07:00
project-slug.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
proxy-config.ts v1.28.0.0 feat: browse --headed/--proxy/--navigate + gstack/llms.txt + webdriver-only stealth (#1363) 2026-05-07 20:14:59 -07:00
proxy-redact.ts v1.28.0.0 feat: browse --headed/--proxy/--navigate + gstack/llms.txt + webdriver-only stealth (#1363) 2026-05-07 20:14:59 -07:00
pty-session-cookie.ts feat: gstack browser sidebar = interactive Claude Code REPL with live tab awareness (v1.14.0.0) (#1216) 2026-04-25 22:52:15 -07:00
read-commands.ts v1.38.1.0 fix wave: surrogate-safe page captures (#1440), Implementation Tasks across review skills (#1454), root-level artifact patterns (#1452) (#1504) 2026-05-14 21:46:50 -07:00
sanitize.ts v1.38.1.0 fix wave: surrogate-safe page captures (#1440), Implementation Tasks across review skills (#1454), root-level artifact patterns (#1452) (#1504) 2026-05-14 21:46:50 -07:00
screenshot-size-guard.ts fix(browse): guard full-page screenshots against Anthropic vision API >2000px brick (#1214) 2026-05-18 21:28:56 -07:00
security-bunnative.ts feat(security): ML prompt injection defense for sidebar (v1.4.0.0) (#1089) 2026-04-20 22:18:37 +08:00
security-classifier.ts v1.34.0.0 feat: gstack consumable as submodule (factory-export API + AUTH_TOKEN env + import.meta.main gate) (#1472) 2026-05-13 12:22:30 -04:00
security.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
server.ts v1.39.0.0 feat: buildFetchHandler factory unblocks gbrowser submodule consumption (#1511) 2026-05-14 21:55:29 -07:00
sidebar-utils.ts fix: sidebar agent uses real tab URL instead of stale Playwright URL (v0.12.6.0) (#544) 2026-03-26 22:07:03 -06:00
skill-token.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
snapshot.ts fix(browse): guard full-page screenshots against Anthropic vision API >2000px brick (#1214) 2026-05-18 21:28:56 -07:00
socks-bridge.ts v1.28.0.0 feat: browse --headed/--proxy/--navigate + gstack/llms.txt + webdriver-only stealth (#1363) 2026-05-07 20:14:59 -07:00
sse-session-cookie.ts security: tunnel dual-listener + SSRF + envelope + path wave (v1.6.0.0) (#1137) 2026-04-21 21:58:27 -07:00
stealth.ts v1.28.0.0 feat: browse --headed/--proxy/--navigate + gstack/llms.txt + webdriver-only stealth (#1363) 2026-05-07 20:14:59 -07:00
tab-session.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
telemetry.ts v1.20.0.0 feat: browser-skills runtime + gbrain-support carryover (#1233) 2026-04-28 20:08:04 -07:00
terminal-agent.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
token-registry.ts v1.39.0.0 feat: buildFetchHandler factory unblocks gbrowser submodule consumption (#1511) 2026-05-14 21:55:29 -07:00
tunnel-denial-log.ts v1.30.0.0 fix wave: 21 community PRs + Windows CI extension + codex flag-semantics smoke (#1391) 2026-05-09 08:06:47 -07:00
url-validation.ts v1.32.0.0 fix wave: 7 community PRs + 5 gate-eval hardenings (#1431) 2026-05-11 12:16:26 -07:00
welcome.html feat: GStack Browser — double-click AI browser with anti-bot stealth (#695) 2026-04-04 10:17:05 -07:00
write-commands.ts fix(browse): guard full-page screenshots against Anthropic vision API >2000px brick (#1214) 2026-05-18 21:28:56 -07:00
xvfb.ts v1.28.0.0 feat: browse --headed/--proxy/--navigate + gstack/llms.txt + webdriver-only stealth (#1363) 2026-05-07 20:14:59 -07:00