Addresses the slice-1 review:
1. Resolution is now read-only (A1 transaction contract). resolve_ciks /
fetch_sic_updates compute proposals and mutate nothing; a new
apply_ticker_updates issues the writes, called only in promote — so a failed
validation can't leak ticker changes on the framework's failure commit.
2. Only 404 means "missing". Added SecNotFoundError; daily_index /
latest_index_date catch only that. 403, exhausted 429, 5xx, timeouts, and
transport/parse errors now propagate instead of looking like "no index".
3. Fair-access enforced when opening a REAL client (transport=None): reject
blank/placeholder/non-email User-Agent and sub-0.11s spacing. Mock transports
skip it (tests use 0 spacing).
4. submissions(include_history=False) by default — only the one-time full
backfill fetches the history shards; SIC/incremental work makes no extra
requests.
Plus: retry transient 5xx/network errors and honor Retry-After during the 1 GB
backfill; compose_revision rejects a missing index date (no "None:..." revision).
Re-verified live vs real SEC (fair-access validation passes, shard merge intact).
Tests: 18 (added error propagation, read-only resolution, fair-access, recent-only
submissions, reject-None revision).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
dennisthiessenandClaude Opus 4.8
5939be7b7f