Request:
- Add a repeatable mechanism so HK IPO reports detect issuers that already have Mainland A shares.
- Include a third internet/official-exchange cross-check layer beyond structured history and prospectus scans.
Changes:
- Add listed_share_classes schema support for same-issuer A-share mappings and evidence links.
- Add scripts/archive_a_share_mappings.py to scan prospectus extracted text, reject sponsor/portfolio/cornerstone false positives, archive optional official web evidence and A-share/FX quote evidence, and export snapshots on write.
- Surface a_share_* fields in the analysis dataset and single-ticker report output.
- Update hk-ipo analyst/archivist skill rules and scheduled refresh prompt to require the three-layer A/H mapping check.
Verification:
- python3 -m py_compile scripts/archive_a_share_mappings.py scripts/build_analysis_dataset.py scripts/generate_ipo_report.py
- .venv/bin/python scripts/archive_a_share_mappings.py --as-of 2026-06-24T00:00:00Z --tickers 00668,01688,03661,09630 --dry-run
- .venv/bin/python scripts/build_analysis_dataset.py --db /tmp/hk_ipo_ah_dataset_test.sqlite --dataset /tmp/hk_ipo_ah_dataset_test.csv --report /tmp/hk_ipo_ah_model_test.md --as-of 2026-06-24T00:00:00Z
- .venv/bin/python scripts/generate_ipo_report.py 09630 --dataset /tmp/hk_ipo_ah_dataset_test.csv --stdout --as-of 2026-06-24T00:00:00Z
- git diff --check
Next useful context:
- Dry-run detected 00668->300866.SZ, 01688->002600.SZ, 03661->300661.SZ, and 09630->688630.SH.
- A false positive 01688->300476.SZ from a cornerstone investor parent was rejected by the issuer-context filter.
geometrybase
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