Two data-quality fixes surfaced by inspecting the first 94 claims:
- _clean_ticker: coerce the literal 'NULL'/'NONE'/'$AAPL' strings the LLM sometimes returns to
a real None, and collapse ASR space-mangling ('B VC' -> 'BVC').
- require_asset filter: drop claims with neither a ticker nor an asset_name -- generic trading
commentary ('buy the dip') from tutorial content is not an asset claim. On the backlog this
cut 94 -> 58 claims (36 generic), leaving clean per-asset signal.
Added the $2,000 Small Account Challenge recap playlist (the daily per-asset trade breakdowns) --
far higher claim density than the evergreen 'Anatomy of a Trade' tutorials. 7 tests green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
