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Give each agent thread its own running instance of the app #168

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SunkenInTime merged 1 commit into from
Sep 13, 2026
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Give each agent thread its own running instance of the app #168

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1 change: 1 addition & 0 deletions AGENTS.md
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Expand Up @@ -38,3 +38,4 @@ Measure twice, cut once: understand the problem fully before building, because c
These steer us in the right direction. They are not hard-set, but default to following them; if you think one should be ignored, be very loud about it and get approval from us first.

- Never edit `*.g.dart` files. Edit the source models, then run `dart run build_runner build --delete-conflicting-outputs`.
- Each thread owns one running instance of the app, and never touches another's. Start yours once, keyed by your worktree or branch name: `flutter run -d macos --pid-file /tmp/icarus-<key>.pid --dart-entrypoint-args "--hive-store-dir=<dir>"`, with `<dir>` = `~/Library/Containers/xyz.icarus-strats/Data/Library/Application Support/icarus-<key>` so its library is yours alone, launched from an unsandboxed shell or it draws but takes no clicks. Instances share a window frame, so move yours aside before you click. After every edit, hot reload it with `kill -USR1 $(cat /tmp/icarus-<key>.pid)`; the tool's stdin is not a terminal, so typing `r` does nothing. Keep it running for the thread, and kill it when the thread ends.

@greptile-apps greptile-apps Bot Sep 13, 2026

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P1 Slash-delimited keys break launch

<key> is defined as a worktree or branch name, so a typical value such as feature/isolated-run expands to /tmp/icarus-feature/isolated-run.pid. Flutter does not create /tmp/icarus-feature before writing the PID file, causing the documented launch to exit with PathNotFoundException before the app starts. Normalize the key for a filename or create the PID file's parent directory before invoking Flutter.

Context Used: AGENTS.md (source)

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