# MyPaint computer app Exported by REA's `export-desktop-application` from a capture of the `mypaint` package (capture Evidence `ev_d4e952048ab869003600d34e5b053720e38a2c1a37c3c312735c1efed2dd0bfd`). It was checked against agentenv-framework 0.9.1431. - `envs/mypaint/` is a computer app on the `ubuntu-24.04` base with the `reference` driver, for `amd64` and `arm64`. It installs `mypaint` from the distribution archive, launches `sh -c cd "$HOME" 2>/dev/null; exec 'mypaint' "$HOME"/'Documents/sunny-day.ora'` at boot and is ready when a window of class `MyPaint` appears. - Installed beside the app because the export was asked for them with `--extra-package`, as a build computer asks for the packages its request named: `librsvg2-common`. - At launch the app opens `~/Documents/sunny-day.ora`, the seed's one document. - Owned paths: `~/.local/share/mypaint`, `~/Documents`. `data/get` returns their files and a typed JSON view of each; `data/reset` restores the seed. - Seed: 3 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. - `tasks/smoke.json` deploys the app. Run the task with `agent-env run `, or only the deploy with `--task smoke`. The seed was made for this task, not taken from a user's own data; read `envs/mypaint/seed/` before publishing the bundle. ## Task `rename-sketch-layer` `tasks/rename-sketch-layer.json` deploys the app, has the agent work through the computer from the prompt below, and grades the outcome with `artifacts/rename-sketch-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/mypaint.toml` names it, so a run of the bundle runs it. > In my drawing Documents/sunny-day.ora, rename the layer called Sketch to Crescent Moon and save it. Checks, each of which must pass: - `renamed`: `{"kind":"value_equals","file":"Documents/sunny-day.ora","pointer":"/entries/[name=stack.xml]/view/root/children/[name=stack]/children/[name=layer][@name=Crescent Moon]/attributes/name","value":"Crescent Moon"}` - `sketch-gone`: `{"kind":"value_absent","file":"Documents/sunny-day.ora","pointer":"/entries/[name=stack.xml]/view/root/children/[name=stack]/children/[name=layer][@name=Sketch]"}` - `ground-kept`: `{"kind":"value_equals","file":"Documents/sunny-day.ora","pointer":"/entries/[name=stack.xml]/view/root/children/[name=stack]/children/[name=layer][@name=Ground]/attributes/name","value":"Ground"}` - `night-sky-kept`: `{"kind":"value_equals","file":"Documents/sunny-day.ora","pointer":"/entries/[name=stack.xml]/view/root/children/[name=stack]/children/[name=layer][@name=Night Sky]/attributes/name","value":"Night Sky"}` - `layer-count`: `{"kind":"member_count","file":"Documents/sunny-day.ora","pointer":"/entries/[name=stack.xml]/view/root/children/[name=stack]/children","matching":"[name=layer]","equals":4}` REA kept the task because its checks fail on the seed (`renamed`, `sketch-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 --task rename-sketch-layer --agent claude-code --model MODEL