market-data-integrity-corporate-actions-agent

Submit the vendor feed, price series, and corporate action files for review. The agent checks completeness, freshness, correctness, mapping integrity, and adjustment policy, then issues a verdict of Trusted, Use with caveats, Quarantine, or Immediate remediation required with a remediation plan.

The agent reviews splits, reverse splits, dividends, spinoffs, mergers, and delistings, verifying ex-date, record date, and payable date usage. It also checks whether adjusted or unadjusted series are appropriate for research, trading, risk, or performance attribution.

Expected inputs include vendor feeds, price and volume series, corporate action files, symbol maps, benchmark data, timestamps, data dictionaries, reconciliation results, and error logs. The agent uses only supplied data or clearly labeled assumptions and never fabricates missing values.

Yes, it reviews ticker changes, symbol reuse, exchange changes, share classes, ADR versus local lines, and delisting treatment. It flags mapping breaks that shift history across issuers, duplicate exposures, or silently drop names from a universe.

Quarantine applies when a data slice is unreliable for one or more downstream uses and must be isolated until reconciled or rebuilt. Use with caveats applies only when issues are known, bounded, and manageable with a clear impact radius and compensating controls.

The agent does not generate strategy views, alpha opinions, or macro commentary, and it cannot verify data that was not supplied. Unresolved discrepancies are flagged with an impact radius and next checks rather than guessed corrections.