Fold in the A3 design review:
1. Composite revision = latest-index-date + index-content-hash + tracked
symbol->CIK fingerprint, so a newly added ticker forces a run instead of
being no_op'd/starved. No backfill sentinel — absence of a prior promoted
run triggers backfill; source_max_date records the processed index date.
2. Full history needs the paginated submissions shards: filings.recent caps at
1000; older accessions (reportDate/acceptanceDateTime/isXBRL) live in
filings.files[] shards (verified on Apple: recent=1000, one 1994-2015 shard).
3. Index<->Company-Facts consistency gate: they are separate SEC products that
can lag; for every tracked isXBRL index accession, confirm it exists in
Company Facts before promotion, else fail+retry (never record a null/partial
snapshot). Non-XBRL amendments skipped with a recorded reason.
4. Immutable = insert-only (ON CONFLICT DO NOTHING); a differing re-fetch is a
reported discrepancy, never a silent mutation / import_run_id replacement.
Plus deterministic, mutually-exclusive cash/debt composition (aggregate-first;
each source tag counted at most once).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
All three decisions approved: fetch via EDGAR daily-index (not bulk zip),
one snapshot per accession for its primary period (comparative-only
restatements out of scope), full-history backfill on first run. Doc status
flipped to approved / ready to implement.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Design (not implementation) for phase A3, grounded in live SEC data probes.
Key findings: fp has no Q4 (derive it); fy/fp are the filing's context not each
fact's period (select by end==reportDate); SEC provides both discrete and YTD
facts (confirms stored-YTD schema); companyfacts endpoint has no ETag/
Last-Modified (conditional GET impossible); tickers are dash-form and GOOG/GOOGL
share one CIK.
Two plan deviations flagged for sign-off:
1. Fetch via the EDGAR daily-index (fetch companyfacts only for tracked issuers
that filed) rather than the multi-GB bulk zip — lighter and restores the
revision/no_op model.
2. One snapshot row per accession for its primary period (YTD-cumulative);
comparative-only restatements out of scope (only real 10-K/A updates a period).
Plus a metric tag catalog, read-time derivation rules (missing period -> null),
CIK resolution, validation gates, and SEC fair-access handling.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
dennisthiessenandClaude Opus 4.8