* fix(test): tolerate stale screencast frames in viewport e2e test
Chrome's `Page.startScreencast` `maxWidth`/`maxHeight` are upper bounds,
and early frames can arrive before the viewport resize fully takes effect.
Instead of asserting exact JPEG dimensions on the first frame, skip frames
with stale dimensions and wait for one that matches.
* Prepare v0.25.5
* Add `agent-browser skills` command
Adds a `skills` CLI command that serves bundled skill content at runtime,
always matching the installed CLI version. This solves the problem of
agents relying on stale cached SKILL.md files after CLI upgrades.
The `npx skills add vercel-labs/agent-browser` flow now installs a single
thin discovery skill with trigger words for all use cases (browser
automation, dogfooding, Electron apps, Slack, etc.) that directs agents
to `agent-browser skills get <name>` for current instructions. The other
five skills (dogfood, electron, slack, vercel-sandbox, agentcore) are
marked `metadata.internal: true` so they are not installed by default but
remain accessible via the CLI command.
Subcommands:
skills [list] List available skills
skills get <name> [--full] Get skill content (with optional references)
skills get --all Get all skill content
skills path [name] Print skill directory path
* Fix skills command robustness: UTF-8 safety, flag handling, path output
- Make truncate_description UTF-8-safe using char_indices() instead of
byte-indexed slicing that panics on multi-byte codepoints
- Pass get_all as a bool parameter to run_get instead of embedding
--all as a sentinel string in the names list
- Canonicalize skills_dir path so `skills path` output is clean
- Warn on unrecognized flags in `skills get` instead of silently
ignoring them
* Add evals framework and strengthen SKILL.md for better agent compliance
Strengthen SKILL.md loading instructions to require `skills get` before
running commands, and trim skill descriptions to prevent agents from
guessing at command syntax. Add TypeScript/Bun eval framework that tests
skill-loading, skill-selection, and command-usage via Claude CLI with
Vercel AI Gateway. Evals pass 20/20 (100%), up from 85% baseline.
* Fix formatting in skills.rs
* Add Codex provider to evals framework
Add multi-provider support with a shared Provider interface. Codex
provider spawns `codex exec --json`, parses JSONL output, and writes
~/.codex/config.toml for AI Gateway routing. Use `--provider codex`
to run evals with Codex (default model: openai/o3). First run scores
19/20 (95%) with 100% on skill-loading and skill-selection.
* Use scoped temp dir for Codex config instead of overwriting ~/.codex
* v0.24.1
* fix: e2e test failures on CI
- e2e_relaunch_on_options_change: use headless for all launches;
the third launch only changes extensions, which is sufficient to
trigger the relaunch hash mismatch without needing an X display
- e2e_auth_login flake: reduce SPA render delay from 1200ms to 800ms
to add headroom within the 5s preferred selector window on slower
CI runners
* feat: add AWS Bedrock AgentCore browser provider (native Rust)
- Add agentcore provider with SigV4 authentication
- AWS SDK deps are optional behind 'agentcore' feature flag
- Build with: cargo build --features agentcore
- Supports AGENTCORE_REGION, AGENTCORE_PROFILE_ID, AGENTCORE_BROWSER_ID env vars
- Returns session ID and Live View URL in launch response
- Add connect_cdp_with_headers for signed WebSocket connections
* test: add unit tests for AgentCore provider
* refactor: use lightweight manual SigV4 signing instead of AWS SDK
- Replace aws-sigv4/aws-config with manual HMAC-SHA256 signing
- Removes ~60s compile time and significant binary size
- Credentials read from AWS_ACCESS_KEY_ID/AWS_SECRET_ACCESS_KEY env vars
- Supports AWS_SESSION_TOKEN for temporary credentials
* fix: correct AgentCore API endpoints
- Host: bedrock-agentcore.{region}.amazonaws.com
- Start session: PUT /browsers/{id}/sessions/start
- Stop session: PUT /browsers/{id}/sessions/stop
- Add urlencoding for browser ID in path
- Add AWS_DEFAULT_REGION fallback
* fix: use profileConfiguration.profileIdentifier for AgentCore profile
The AWS Bedrock AgentCore API expects profile configuration in the format:
{
"profileConfiguration": {
"profileIdentifier": "<profile-id>"
}
}
Not the flat "profileId" field that was previously used.
* feat: support AWS credential provider chain via AWS CLI
- Try env vars first (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)
- Fall back to 'aws configure export-credentials --format env'
- Honor AWS_PROFILE environment variable
- Works with SSO, IAM roles, credential files, etc.
---------
Co-authored-by: Chris Tate <chris@ctate.dev>
The v0.20.0 Rust rewrite dropped two keepalive mechanisms that the
Node.js/Playwright daemon provided, causing CDP connections to remote
Browserless instances to silently die between commands when traversing
multi-hop proxy topologies (Istio Envoy, OpenResty, etc.).
Restore parity with v0.19.0 and improve on it:
1. TCP SO_KEEPALIVE (v0.19.0 parity): Playwright's WebSocketTransport
used HTTP agents with keepAlive: true, which set SO_KEEPALIVE on the
underlying TCP socket. Restored via socket2::SockRef on the
tokio_tungstenite stream before splitting.
2. WebSocket Ping frames (improvement): Send Ping frames every 30s on
idle connections. This goes beyond v0.19.0 because L7 proxies (Envoy,
nginx, OpenResty) can see WebSocket pings but not TCP keepalive
probes, making this effective through application-layer proxy hops.
The keepalive task is coordinated with the reader loop via a watch
channel and stops automatically when the connection closes.
Fixes#934
Co-authored-by: ctate <366502+ctate@users.noreply.github.com>
Expose HAR recording as a CLI subcommand under the existing `network`
command so users can capture and export network traffic without a
separate tool or opening the browser twice.
- Parse `network har start` and `network har stop [path]` in commands.rs
- Enrich HarEntry with request/response headers, timestamps, status text,
resource type, HTTP version, and body sizes from CDP events
- Produce HAR 1.2 output with creator/browser metadata, query strings,
and proper header arrays compatible with Chrome DevTools HAR viewer
- Auto-generate output path under ~/.agent-browser/tmp/har/ when omitted
- Add har_stop to skip_launch list so export works without a live browser
- Update help text, README, docs site, SKILL.md, and security policy docs
- Add unit tests for parsing, HAR entry serialization, and stop behavior
* fix: replace screenshot polling with screencast-based piped ffmpeg recording
Recording previously used Page.captureScreenshot polling at 10fps,
which was CPU-heavy and produced inconsistent results. Now uses
Page.startScreencast with throttled acks (35ms interval) to receive
frames event-driven from Chrome, and pipes JPEG data directly to
ffmpeg stdin in real-time instead of saving temp files.
- Spawn ffmpeg at recording start with piped stdin (image2pipe)
- Background task receives screencast frames, interpolates gaps by
repeating the last frame based on timestamps, targets 25fps
- Ack throttling controls Chrome's frame push rate
- Fix: current frame was never written after the first one
- Fix: frame count was read before task finished padding
- Remove tokio-util dependency (replaced CancellationToken with oneshot)
- Add tokio "process" feature for async child process stdin pipe
- Extract start/stop_recording_task helpers on DaemonState
- Add tests for restart, ffmpeg codec selection, and stop without task
* fmt
* chore
* fix: switch WebM codec from VP9 to VP8 for correct framerate and browser
compatibility
VP9 realtime encoder ignored input framerate, producing 10fps output
instead of 25fps. This caused inconsistent playback in browsers.
VP8 respects -framerate 25 and has wider browser playback support.
* fmt
* fix: add kill_on_drop to ffmpeg process to prevent zombie on task panic
* fix: switch from screencast to screenshot polling for reliable recording duration
Screencast only pushes frames on visual changes, producing short videos
on static pages. Screenshot polling captures at a fixed 10fps interval
regardless of page activity, guaranteeing duration matches wall-clock time.
ffmpeg piped stdin architecture is preserved — no temp files.
---------
Co-authored-by: hyunjinee <leehj0110@kakao.com>
