Extract `_copy_close_to_null_rows()` with explicit mutation
bounds, searchable close-copy comments, and preserved activity
fields. Type and document `maybe_fill_null_segments()` including
its distinction from packed timestamp-gap repair.
Disable relative epoch tolerance when validating synthetic
stamps: an overfull reservation must not duplicate the right
boundary. Cover modern epochs, typed empty replies, packed gaps,
and unchanged rejected inputs.
Prompt-IO: ai/prompt-io/codex/20260924T165757Z_1da9b760_prompt_io.md
(this patch was generated in some part by `codex` using
`gpt-6` (`openai`))
Complete HMDS no-data replies without silently retrying a day
older. Let `open_history_client()` classify the original request
and leave frame stepping to `start_backfill()`.
Distinguish `request_end_dt` from `oldest_shm_dt` so the first
frame after an empty interval retains its unwritten end bar.
Inline the storage time cutoff and drop the unused two-direction
`diff_history()` helper. Explain both dates and filtering rules.
Add request-boundary tests and real SHM/NativeDB regressions:
all 2,004 supplied bars survive, while the closure stays empty.
Prompt-IO: ai/prompt-io/codex/20260923T164656Z_efa72980_prompt_io.md
(this patch was generated in some part by `codex` using
`gpt-6` (`openai`))
IB returns trading samples, not one row per wall-clock period.
Converting elapsed time to a physical prepend offset left 42,720
zero rows in NVDA's 60s buffer even though both valid margins
shared the same timestamp.
Use the actual earliest provider sample as the NativeDB boundary.
After reverse retrieval, prepend older stored rows directly beside
it.
Deats,
- start reverse insertion at the current first index;
- update `ShmArray._first` after every provider prepend;
- trim provider/NativeDB overlap by its timestamp;
- publish the final storage prepend to chart and FSP consumers;
- derive the source `time` field from `ohlc_key_map`;
- cover the full lifecycle with a real multi-frame `ShmArray`.
Prompt-IO: ai/prompt-io/opencode/20260805T195001Z_f0f3c806_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
Keep reverse history and stored SHM layout aligned so sparse IB
frames do not expose permanent zero-time reservations.
Deats,
- omit inclusive query endpoints from SHM but retain full storage
- serialize and bound farm resets, blanks, and cancellations
- run the final null sweep after reverse retrieval completes
- require valid timestamp boundaries for synthetic gap rows
- cover the live QQQ 653-row failure and reset interleavings
Prompt-IO: ai/prompt-io/opencode/20260729T204046Z_ad6c560f_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
IB history frames omit the derived `index` and append `count`.
Normalize provider data to durable names, order, and dtypes before
merge, and reject fractional epoch truncation.
Also,
- map canonical storage fields into provider-specific SHM on reload
- select Polars columns by name instead of position
- exercise first-start and restart through actor, SHM, and Parquet
Prompt-IO: ai/prompt-io/opencode/20260727T212454Z_689df816_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
- merge provider deltas without dropping unaffected history
- validate reopened temp parquet before atomic replacement
- serialize writers with actor-local and cancellable file locks
- publish cache only after disk replacement
- persist full startup/backfill frames before SHM publication
- bound sampler notifications and avoid MarketStore duplicates
Prompt-IO: ai/prompt-io/opencode/20260722T024134Z_3a4f6737_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
- let structured nursery joins own child-task completion
- stop empty provider frames before timestamp endpoint indexing
- cover provider exhaustion and empty frames with bounded tests
Prompt-IO: ai/prompt-io/opencode/20260722T001358Z_16f3cd6f_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
Gud Boi