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9a66e8a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | # Pencil2D computer app
Exported by REA's `export-desktop-application` from a capture of the `pencil2d` package
(capture Evidence `ev_a0b3c0a8a390f407a387bf3f067af9329627bb107a646980d40e536016c6791d`). It was checked against agentenv-framework
0.9.1431.
- `envs/pencil2d/` is a computer app on the `ubuntu-24.04` base with the `reference` driver, for
`amd64` and `arm64`. It installs `pencil2d` from the distribution archive, launches `sh -c cd "$HOME" 2>/dev/null; exec 'pencil2d' "$HOME"/'Documents/bounce.pclx'` at boot and is ready
when a window of class `Pencil2D` appears.
- At launch the app opens `~/Documents/bounce.pclx`, the seed's one document.
- Owned paths: `~/Documents`.
`data/get` returns their files and a typed JSON view of each; `data/reset` restores the seed.
- Seed: 1 file(s) made for the task, as saved at checkpoint `seed`.
Text files and dconf keys spell the capture host's name as `localhost`, `user@host` as `user@localhost`
and the home as `/home/user`, which the computer respells to its own at boot.
- Neither owned nor seeded, so the app starts without what it saved there: these files or folders, which changed
during the capture, `~/.config/Pencil`, `~/.config/QtProject.conf`.
To own them, capture again naming them with `state_paths` on `start_build_capture`, or `--state-path` on `capture-desktop-application`.
- `tasks/smoke.json` deploys the app.
Run the task with `agent-env run <this folder>`, or only the deploy with `--task smoke`.
The seed was made for this task, not taken from a user's own data; read `envs/pencil2d/seed/` before publishing the bundle.
## Task `rename-ball-layer`
`tasks/rename-ball-layer.json` deploys the app, has the agent work through the computer from the prompt below, and grades
the outcome with `artifacts/rename-ball-layer-check/verify.py`, which reads the app's `data/get` views and needs
no model. It grades once the app's files have held for 3 s, so a save the app makes on its own within that
time of the agent stopping counts; each result's `settled` is false when they were still changing 15 s after the
first read. `evals/pencil2d.toml` names it, so a run of the bundle runs it.
> In Pencil2D, rename the "Bitmap Layer" layer of my bouncing ball animation in Documents/bounce.pclx to Ball and save it.
Checks, each of which must pass:
- `layer-renamed`: `{"kind":"value_equals","file":"Documents/bounce.pclx","pointer":"/entries/[name=main.xml]/view/root/children/[name=object]/children/[name=layer][@id=3]/attributes/name","value":"Ball"}`
- `old-name-gone`: `{"kind":"value_absent","file":"Documents/bounce.pclx","pointer":"/entries/[name=main.xml]/view/root/children/[name=object]/children/[name=layer][@name=Bitmap Layer]"}`
- `ground-kept`: `{"kind":"value_equals","file":"Documents/bounce.pclx","pointer":"/entries/[name=main.xml]/view/root/children/[name=object]/children/[name=layer][@id=4]/attributes/name","value":"Ground"}`
- `bitmap-layer-count`: `{"kind":"member_count","file":"Documents/bounce.pclx","pointer":"/entries/[name=main.xml]/view/root/children/[name=object]/children","matching":"[name=layer][@type=1]","equals":2}`
REA kept the task because its checks fail on the seed (`layer-renamed`, `old-name-gone`) and all
pass on the captured end state.
To measure a solve rate, run the task k times (3 by default) with the agent and model to measure, and count the runs
whose summary line says `passed`; a run that says `failed` did not finish and is run again rather than counted:
agent-env run <this folder> --task rename-ball-layer --agent claude-code --model MODEL
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