Webwright
Microsoft Research's terminal-native web-agent framework. Gives a coding model a terminal, a workspace, and the freedom to launch, inspect, and discard browser sessions, turning a web task into a re-runnable program. SOTA on long-horizon web tasks. ~5.7K stars. Source: microsoft/Webwright README, GitHub
The thesis: "a terminal is all you need for web agents." Traditional web agents keep one browser session alive and predict the next click; Webwright separates the agent from the session so the browser can be spawned, screenshotted only when useful, and thrown away, while code, logs, screenshots, and outputs persist in a local workspace. The durable output is not just a completed task but a reusable script. Source: Microsoft, microsoft.github.io/Webwright, 2026-05-25
Results and Design
- Minimal harness: 3 modules (Runner, Model Endpoint, terminal Environment), ~1K-1.5K lines, no multi-agent orchestration or planning hierarchy.
- 86.7% Online-Mind2Web accuracy (GPT-5.4, 300 live tasks, 136 sites, 100-step budget).
- 60.8% on Odysseys long-horizon browsing, a 35.1% relative improvement over prior reported SOTA.
- 66.2% for a small model (Qwen3.5-9B) on the hard split when augmented with crafted reusable tools.
- The loop: send context, emit a bash command (often Playwright-backed scripts), return observations, refine until a final script reruns cleanly and passes self-reflection.
Source: Microsoft, microsoft.github.io/Webwright, 2026-05-25
Where It Fits Kevin's Stack
Webwright reframes browser automation as code generation: a solved task becomes a parameterized CLI tool or agent skill, reused instead of rediscovered. The repo ships skills for Claude Code, Codex, Hermes (a NousResearch Hermes Agent skill), and OpenClaw; Kevin's wiki now vendors that full skills/webwright folder as skills/engineering/webwright/. That makes it complementary to Browser Testing Skills (Kevin's primary CDP automation, snapshot-driven) and to Browserbase Browse.sh (Open Web Catalog) (per-site playbooks): Webwright is the framework that turns a one-off browse into a durable script, where browse.sh is the catalog of pre-built site skills. Strong fit for repeatable agent web tasks that should amortize discovery cost.
Source snapshot
Current source snapshot as of 2026-06-30: microsoft/Webwright, HEAD 4a46f282ec37f27d6003cc498a977939d62d9015, MIT license, 5,732 stars, 361 forks, no GitHub releases or tags. Brin returned caution for both repo (65) and skill (59) pending deeper scan, so the active local skill is source-pinned and should be updated deliberately, not auto-pulled. Source: GitHub API, git ls-remote, Brin API, 2026-06-30
Timeline
- 2026-05-25 | @mr_r0b0t surfaced Webwright as a "massive Playwright update geared for agents," noting every session becomes a reusable workflow and the repo includes a NousResearch Hermes Agent skill. 2,404 likes, 3,836 bookmarks. Repo at ~4.7K stars. Source: X/@mr_r0b0t, 2026-05-25
- 2026-06-30 | Deep-reviewed media and source. Imported the full upstream
skills/webwrightfolder intoskills/engineering/webwright/; the screenshots confirm the reusable-workspace contract and the Hermes symlink path. Source: X bookmark artifact audit, 2026-06-30