9 sessions on Swift with a coding agent: the agent failed at least once in 7, and 2 finished without a human stepping in.
Takeaway: Next time I'd tell it up front that macOS ships BSD install, not GNU coreutils, since that's the kind of platform detail it can't discover just by reading the recipe skill and docs.
Takeaway: Next time I'd start by asking the agent to test actual terminal key-forwarding behavior before proposing a keybinding fix inside pi-mono core, since Cmd+Shift+V/Ctrl+Shift+V turned out to be intercepted by every terminal I use.
Takeaway: I'd start by pointing the agent straight at the maestro run-ios-local.sh script and the simctl UDID lookup instead of letting it explore the repo structure first, since that's what it ended up using anyway.
Takeaway: Next time I'd point straight at the ICloudBackupTransport file since the crash log made the source pretty obvious, and let the agent confirm the main-thread-blocking theory with a quick web search before touching code.
Takeaway: Next time I'd point the agent straight at the .xcodeproj instead of the .xcworkspace, since the workspace-based xcodebuild -list call just errored out and wasted a step.
Takeaway: Next time I'd skip trying to bootstrap the messenger/sub-agent planner up front and just have the agent start reviewing and committing test changes directly, since the planner kept failing or reporting 'no plan found' and ate most of the session.
Takeaway: Next time I'd ask upfront to run a quick build after each individual conflict resolution instead of one big build at the end — the ICloudBackupTransport and TwoFacLib merges needed several reset/re-merge cycles to untangle because the failures surfaced too late and mixed together.
Takeaway: I'd specify the correct subagent type ('worker') upfront in my first prompt since I wasted a couple of tries spawning nonexistent agent names before it worked.
Takeaway: I'd tell it up front which files/paths are likely stale so it doesn't waste turns hitting ENOENT on renamed importer adapters and onboarding files — that was the main friction.