piker/ai/prompt-io/claude/20260610T171259Z_59d5d9a6_prompt_io.raw.md

NOTE: diff-ref mode entry (code committed in the same commit as this log); backfilled from the live dev session transcript per the /prompt-io skill rules.

git log -1 -p --follow -- piker/data/feed.py

Generated: open_feed() spawn cutover with the maybe_spawn_datad import done “relative-direct” from ._daemon — NOT via piker.service — to dodge a partial-init cycle: when piker.data.feed loads as part of piker.service.__init__ executing its own piker.data._daemon import, the service pkg is mid-init and its maybe_spawn_datad binding does not exist yet. The open_feed_bus() local-state sanity assert flips 'brokerd' in servicename -> 'datad' in servicename (the only actor-name assert in the tree, verified by grep).

git log -1 -p --follow -- piker/brokers/_daemon.py

Generated: _setup_persistent_brokerd() slimmed to console-log setup + pinned-open ctx; drops the bus alloc, the assert not feed._bus, the service nursery (backend open_trade_dialog() ctxs own their task trees) and the eg.ExceptionGroup handler. The piker ledger ad-hoc actor enters this same slimmed fixture — exactly what it needs.

git log -1 -p --follow -- piker/ui/_app.py git log -1 -p --follow -- piker/ui/cli.py git log -1 -p --follow -- piker/brokers/core.py git log -1 -p --follow -- piker/brokers/cli.py git log -1 -p --follow -- piker/ui/kivy/option_chain.py git log -1 -p --follow -- tests/test_services.py

Verification (from session): per-suite gates green at this commit (services 5-passed incl. the new negative assert, feeds 3-passed); a headless live smoke (maybe_open_pikerd + open_feed(['xbtusdt.kraken']) on an alt registry port) confirmed quotes flowing via datad.kraken + samplerd with check_for_service( 'brokerd.kraken') is None. Known pre-existing flake documented: test_multi_fill_positions’ second in-proc runtime boot wedges ~50% (zombie subactor w/ unread parent-IPC bytes); reproduced with the split fully reverted so NOT a regression of this work.