ZV-2026-1993 · 2026-10-09 · mcp.tradestarinsider.com
mcp.tradestarinsider.com: Tool insider_filing_lookup was removed.
breaking
What changed
Tool insider_filing_lookup was removed. Tool insider_signals_by_date_range was removed. Tool insider_signals_by_ticker was removed. Tool insider_signals_today was removed. Tool verify_13f_holding was renamed to verify_13f_change.
What to do
If your agents call mcp.tradestarinsider.com, pin the new snapshot, patch the affected call sites, and let a green contract check confirm the fix. If you don't use the changed tools, nothing is required, but the rest of the ecosystem just learned about it at the same moment you did.
The redline
− insider_filing_lookup Tool insider_filing_lookup was removed. − insider_signals_by_date_range Tool insider_signals_by_date_range was removed. − insider_signals_by_ticker Tool insider_signals_by_ticker was removed. − insider_signals_today Tool insider_signals_today was removed. − verify_13f_holding + verify_13f_change verify_13f_holding − Recent activist Schedule 13D / 13D-A filings on US-listed companies, newest first then by … + Use when the user asks about activist investors, hedge-fund stakes, or recent 13D filings … activist_stakes_recent − Recently signed U.S. federal new awards from USAspending.gov, newest first. Returns the ne… + Use when the user asks about recent federal contracts, government awards, or who won a U.S… federal_awards_recent − What large institutional filers CHANGED quarter-over-quarter in their SEC 13F-HR holdings … + Use when the user asks what a fund bought or sold, how a 13F filer changed its holdings, o… fund_position_changes − Rule-2 cluster buys only (>=2 insiders buying the same issuer in-window) — the highest-sig… + Use when the user asks about cluster buying, multiple insiders buying the same company, or… insider_cluster_buys + include_unlisted Optional field include_unlisted was added to insider_cluster_buys; may shift model behaviour. − Check whether a fund (filer name/CIK) HELD an issuer (issuer_name or cusip) as of a quarte… + Use when the user wants to verify or fact-check whether a fund (filer name/CIK) reported a… verify_13f_holding − Check a claim that a registrant (cik/company/accession) filed an 8-K carrying specific SEC… + Use when the user wants to verify or fact-check that a company filed an 8-K carrying speci… verify_8k_event − Check a claim about an activist stake (ticker/subject, filer, percent-of-class, stated int… + Use when the user wants to verify or fact-check a claim about an activist stake or 13D fil… verify_activist_13d − Check a claim about an insider open-market buy (ticker/issuer, person, amount, timeframe) … + Use when the user wants to verify or fact-check a claim that an insider bought a stock, or… verify_insider_purchase + accession Optional field accession was added to verify_insider_purchase; may shift model behaviour. + insider_buys Tool insider_buys was added.