| --- |
| license: cc-by-4.0 |
| pretty_name: MiniWeb agent trajectories |
| task_categories: |
| - other |
| tags: |
| - web-agents |
| - browser-agents |
| - trajectories |
| - benchmark |
| size_categories: |
| - 10K<n<100K |
| --- |
| |
| # MiniWeb agent trajectories |
|
|
| Every agent episode behind the results of *Back to Basics: A Skill-Centric Approach to Generalist Web Agents*: |
| 12,245 episodes in 62 runs, with 375,447 screens. Browse them at |
| **[minhphd.github.io/miniweb/trajectories.html](https://minhphd.github.io/miniweb/trajectories.html)**. |
|
|
| | Benchmark | In the paper | Agents or arms | Runs | Episodes | |
| |---|---|---|---|---| |
| | MiniWeb, all 369 tasks | Tab. 2 | 10 | 10 | 3,689 | |
| | MiniWeb held-out tasks | Tab. 3 | 5 | 15 | 930 | |
| | MiniWeb single primitives | Fig. 7 | 4 | 12 | 1,236 | |
| | WebArena-Lite | Tab. 3 | 5 | 15 | 2,310 | |
| | WebVoyager | Tab. 3 | 5 | 5 | 2,680 | |
| | Online-Mind2Web | Tab. 3 | 5 | 5 | 1,400 | |
|
|
| Benchmarks: [MiniWeb](https://huggingface.co/datasets/sparklabuofu/MiniWeb), WebArena-Lite, WebVoyager and |
| Online-Mind2Web. Each episode's success is the one the paper counts: the VLM judge on all 369 MiniWeb tasks (Tab. 2), |
| the task verifier on MiniWeb's held-out tasks and single primitives, WebArena's evaluator, the WebVoyager judge and |
| WebJudge on Online-Mind2Web. |
|
|
| ## Layout |
|
|
| ``` |
| index.json benchmarks and runs: arm, seed, episodes, success rate, screens |
| runs/<run>/index.json the run's episodes: task, instruction, outcome, step and screen counts |
| runs/<run>/<episode>.json one episode |
| ``` |
|
|
| A run id is `<benchmark>/<arm>[/s<seed>]`, for example `heldout/miniwebagent/s1`. An episode file holds the task and |
| its instruction, `success`, `graded_by`, the grader's `verdict`, per-primitive verdicts with the judge's reasons |
| (`primitives`, where the run was judged per primitive), the planner's subtasks (`plan`), and `steps`: each with the |
| page URL, the action, the action's result or error, the agent's reasoning, and `image`, an index into `images` (WebP |
| data URIs, 960 px wide). |
|
|
| ## Screens |
|
|
| Screens are the ones the agent saw, where the run kept them. The planner harness on MiniWeb kept none; for those |
| 22,789 steps the screen is redrawn on MiniWeb's sites. On the held-out tasks it is rendered from the page HTML |
| the recorder saved before the step, with the sites' own stylesheets and images (`redrawn: true`): close to what the |
| agent saw, though scripts do not run and pages built on the fly may miss an image. On the single-primitive tasks the |
| recorder saved no HTML, so the screen is a fresh visit to the step's address (`redrawn: "url"`): the right page, but |
| without typed text or other in-page state. WebArena-Lite planner runs kept neither, so their steps have no screen. |
|
|
| ## Privacy |
|
|
| Text went through the same scrubbing as the MiniWeb release: annotator names appear only as pseudonyms, the hosts |
| the benchmarks ran on are replaced (`http://shopping.webarena`, `http://map.webarena`, ...), and the eval machines' |
| network addresses and file paths are masked (`x.x.x.x`, `/downloads`). Screens of pages that print the visitor's |
| address (search engines' unusual-traffic pages, error pages with the client IP, an ad page that geolocates the |
| visitor) are withheld: 452 steps, marked `withheld: true`. Live websites saw the eval machines' location, |
| so some pages show it. The MiniWeb sites are synthetic; the live-web runs visited public websites. |
|
|
| ## Citation |
|
|
| ```bibtex |
| @misc{miniweb2026, |
| title = {Back to Basics: A Skill-Centric Approach to Generalist Web Agents}, |
| author = {Pham-Dinh, Minh and Ishmam, Md Farhan and Yupanqui, Hernan and Joarder, Reaz Hassan and Marino, Kenneth}, |
| year = {2026} |
| } |
| ``` |
|
|
