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Functional Delta: 014-fdc3-intent-interoperability

Parent state: 012-platform-convergence-c3

Document only functional behavior changes introduced by this state.

Added​

  • Orders, trades and positions start on All tickers. Each blotter has a labelled, keyboard-accessible Filter on selected ticker control and a status showing its effective ticker (or no ticker selected).

  • Ticker mode stays local: selecting securities still shares FDC3 context with charts/tickets, turning filtering off restores all account rows, and opting back in uses the latest selection. Account changes and tab switches preserve modes; new windows default to All tickers even with retained context.

  • Account selection propagates independently through fdc3.account. Live order updates use the configured event transport, not FDC3; snapshot reconciliation protects creates/fills/cancellations and reconnect refreshes missed data.

  • Empty or invalid instrument messages retain the last valid selection; this state defines no clear-instrument message. Before any selection, an opted-in blotter shows all tickers and explains why.

  • FDC3 interop adapter in TraderX frontend for DesktopAgent integration.

  • Outbound fdc3.instrument context publishing when a user selects a ticker-bearing row in trade/order/position views.

  • Inbound fdc3.instrument context handling that retains shared selection for optional blotter filters and ticket defaults.

  • Standard intent handling for ViewOrders (orders view routing without implicit filter opt-in).

  • Outbound standard intent triggers for ViewChart and ViewQuote from explicit TraderX UI actions.

  • Custom inbound intents TraderX.CreateTradeTicket and TraderX.CreateOrderTicket that open the respective ticket UI with preselected ticker context.

  • Local Sail sidecar runtime profile for interop demos.

  • Seeded Sail app-directory profile that includes:

    • TraderX app entry (ticket intents + ViewOrders handler)
    • at least two additional demo apps for chart/quote or equivalent symbol workflows.

  • Canonical two-tab Sail demo profile (default-client-state.json):

    • tab One for chart/pricing/ticket-launch actions
    • tab Two for news workflow.

  • Operator demo script requirements captured in feature artifacts and generated README.

Changed​

  • Trade/order/position blotter interactions now optionally emit cross-app context events in addition to local UI updates.
  • Ticket launch pathways now include an intent-driven path alongside existing in-app button flows.
  • Frontend startup includes FDC3 capability detection and listener registration, with graceful degraded behavior when unavailable.
  • State runtime startup gains optional/paired Sail lifecycle management separate from TraderX ingress path.
  • Existing market-data semantics remain required: snapshot bootstrap + streaming continuation with server-time freshness ordering, and push-driven trade/position/order blotter updates after REST bootstrap.

Removed​

  • None.

Flow Impact​

  • F4 (realtime updates): now coexists with cross-app symbol context distribution for selected securities.
  • F6 (order ticket + blotter workflow): extended with intent-driven order ticket launch and symbol prefill.
  • New flow F7: cross-application symbol synchronization (TraderX selection -> external chart/quote app update).
  • New flow F8: external app intent -> TraderX ticket launch (Trade/Order) with ticker preselection.
  • New flow F9: local demo bootstrap (TraderX + Sail + demo apps) and end-to-end scripted interoperability verification.
  • Existing pricing/realtime flow behavior inherited from prior states remains non-regressive under FDC3 enablement.