piker/ai/prompt-io/claude/20260610T170859Z_75cefe10_p...

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---
model: claude-fable-5[1m]
service: claude
timestamp: 2026-06-10T17:08:59Z
git_ref: datad_service
diff_cmd: git log -1 -p --follow -- ai/prompt-io/claude/20260610T170859Z_75cefe10_prompt_io.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/config.py`
Generated: `config._maybe_use_test_dir()` — lazily
reads `piker_test_dir` from
`tractor.runtime._state._runtime_vars['piker_vars']`
(pre-loaded by `open_piker_runtime()` from the
`tests.conftest._open_test_pikerd()` overrides) and
calls `_override_config_dir()` when set. Hooked at the
top of `get_conf_dir()`; `get_conf_path()` and
`load()`'s dir-creation rerouted through
`get_conf_dir()`.
> `git log -1 -p --follow -- piker/accounting/_ledger.py`
> `git log -1 -p --follow -- piker/accounting/_pos.py`
Generated: ledger/account dir derivation switched from
the `config._config_dir` module global to
`config.get_conf_dir()` + `mkdir(parents=True,
exist_ok=True)` for nested tmp-dir creation.
Key diagnostic reasoning (verbatim from session):
The old (commented-out) `get_app_dir()` override gated
on `'pytest' in sys.modules` which can NEVER work in
spawned subactors (fresh procs, no pytest import); as
a result test `paperboi`/daemon actors were writing
into the user's REAL `~/.config/piker/accounting/`
files. Evidence: `account.kraken.paper.toml` gained a
single 0.001 xbtusdt clear stamped 2026-06-09T18:47Z
(a test fill), and `trades_kraken_paper.toml` (252B)
contained only that fill. The resolution must be
checked lazily at config-path access time (NOT import
time) since sub-actors only receive runtime-vars once
their `tractor` runtime has fully booted.