| --- |
| license: apache-2.0 |
| pretty_name: Osmo computer-use environment from a one-line request (REA) |
| tags: |
| - computer-use |
| - cua |
| - gui-agent |
| - rl-environment |
| - agentenv |
| - desktop |
| - linux |
| - rea |
| - personal-organizer |
| - address-book |
| - contacts |
| - from-request |
| --- |
| |
| # Osmo: a computer-use environment built from a one-line request |
|
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|  |
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| **The real Osmo 0.4 personal organizer running on an Ubuntu 24.04 desktop, as an [agentenv](https://pypi.org/project/agentenv-framework/) computer environment. An agent completes the task only through screenshots, mouse and keyboard, and a verifier grades the saved files with no model.** |
|
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| Claude Code built this environment from a one-line request in about 20 minutes, with only REA's build skill and MCP tools; [How it was made](#how-it-was-made) has the request and the steps. Osmo starts on its calendar, with an address book of three synthetic contacts. The agent has to add a fourth, Delphine Moreau, with her cell phone and e-mail. There is no file to open and nothing to save: Osmo writes its contacts to `~/.local/share/osmo/contacts_records.xml` after every change. It sees only the screen and acts only with the mouse and keyboard. |
|
|
| ## Watch |
|
|
| - Agent runs (Claude Code with Claude Sonnet 5.5): [run 1](media/solve-1.mp4), [run 2](media/solve-2.mp4), [run 3](media/solve-3.mp4) |
| - Witness, which proves the task can be done through the computer: [witness.mp4](media/witness.mp4) |
|
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| Each video is the computer's own screen recording at 10 frames per second. |
|
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| ## The task |
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| > In Osmo, add a new contact to my address book: Delphine Moreau, cell phone 555-0163, e-mail delphine.moreau@example.com. |
|
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| `bundle/artifacts/add-contact-check/verify.py` reads the app's files through the computer's `data/get` view and passes only if every check holds: |
|
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| | Check | Kind | File | |
| | --- | --- | --- | |
| | `name` | `text_contains` | `.local/share/osmo/contacts_records.xml` | |
| | `phone` | `text_contains` | `.local/share/osmo/contacts_records.xml` | |
| | `email` | `text_contains` | `.local/share/osmo/contacts_records.xml` | |
| | `kept` | `text_contains` | `.local/share/osmo/contacts_records.xml` | |
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| Osmo's contacts file is XML whose records have no attributes, so no selector can pick out one record. The checks read the whole address book's text with `text_contains`: it must hold "DelphineMoreau" (Osmo writes the first and last names next to each other), "555-0163" and "delphine.moreau@example.com", and must still hold Hannah Okafor's e-mail, so overwriting her contact instead of adding a new one fails. REA's draft suggested no checks for this file; Claude Code wrote these after reading the file in a throwaway export. |
|
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| ## Results |
|
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| 3 of 3 runs passed, about $0.99 per run. |
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| | Run | Outcome | Turns | Cost | Video | |
| | --- | --- | --- | --- | --- | |
| | 1 | passed | 17 | $1.19 | [video](media/solve-1.mp4) | |
| | 2 | passed | 17 | $0.96 | [video](media/solve-2.mp4) | |
| | 3 | passed | 20 | $0.81 | [video](media/solve-3.mp4) | |
|
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| ## Run it |
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| You need Docker. `agentenv-framework` builds the computer: Ubuntu 24.04 with the app installed from Ubuntu's archive (`osmo` 0.4.4). |
|
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| ```bash |
| pip install agentenv-framework==0.9.1431 |
| hf download earakely-scale/OsmoFromRequestComputerEnv-REA --repo-type dataset --local-dir osmo-request |
| agent-env run osmo-request/bundle --task add-contact --agent claude-code --model <model> |
| ``` |
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| The agent needs a model provider configured for agentenv. `--task smoke` only boots the computer, with no agent. `bundle/README.md` describes the bundle in detail. |
|
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| ## How it was made |
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| Claude Code built this environment from a one-line request, given only [REA](https://github.com/morluto/rea)'s build skill and REA's MCP tools: |
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| > Build me an Osmo environment where the agent adds a new contact to the address book. |
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| It asked only the skill's upfront questions, wrote no app-specific scripts, and finished in about 20 minutes. The steps were REA's usual ones: |
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| 1. **Capture.** REA launched Osmo on a Linux desktop and recorded its package, windows and opened files while the edit was made. It also recorded the app's state folders before and after. |
| 2. **Export.** REA turned the capture into an agentenv `computer_app`. It installs the app, seeds the starting files, starts the app, and waits for its main window. It also serves typed views of the app's files for verifiers. |
| 3. **Task.** The task's checks were validated against the capture: they fail on the starting state and pass on the captured end state. |
| 4. **Witness.** In a fresh computer, the contact was added through computer actions alone, and the checks were read at four stages. They held on the first try: |
|
|
| | Stage | Checks | |
| | --- | --- | |
| | `seed` | fail, as expected: the name, phone and e-mail are absent; the existing contact check passes | |
| | `after_edit` | pass | |
| | `near_miss` | fail, as expected: the new contact's phone was edited to 555-0136 | |
| | `after_reset` | fail, as expected: `data/reset` restored the seed and Osmo relaunched on it | |
|
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| The agent runs came after the build: Claude Code with Claude Sonnet 5.5 (`--model anthropic/claude-sonnet-5-5 --no-emulate`, on an amd64 host) solved the task 3 times, each run recorded. |
|
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| ## What's inside |
|
|
| ``` |
| bundle/ the agentenv bundle: envs/ (app module, seed files), tasks/, artifacts/ (verifier), evals/ |
| media/ witness and agent-run recordings (MP4) with short GIF previews |
| results.json the runs above, with each check's result |
| ``` |
|
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| ## Limits |
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| - The checks read the address book as one run of text with no separators, so they cannot prove that the phone and e-mail belong to Delphine's record rather than another contact's. Only Hannah Okafor's contact is checked as kept, so overwriting one of the other two still passes. |
| - The prompt has no save step: Osmo saves after every change, a setting the seed keeps. |
| - The seed also holds Osmo's settings, an empty `lockfile` and WebKit storage files, which the capture picked up. Osmo started cleanly in the witness and in every run. |
| - The computer installs whatever `osmo` Ubuntu 24.04's archive holds at build time (0.4.4 for these runs); it is not pinned. |
| - Three runs is a small sample: the solve rate shows the task is solvable, not how hard it is. |
|
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| ## Licences |
|
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| The bundle code, the task and the synthetic seed files are Apache-2.0. Osmo itself is not included: the computer installs it from Ubuntu's archive (`osmo` 0.4.4) at build time, under its own licence (GPL-2.0-or-later). |
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