Equities

Guide the design and management of trading venue connectivity and market data infrastructure. Owns the FIX session layer (logon, heartbeats, sequence number gaps, resend and gap recovery, disconnects). Use when building or troubleshooting FIX sessions for order routing or drop copy, integrating exchange protocols like OUCH, ITCH, PITCH, or Pillar, designing market data feed architecture (consolidated SIP vs direct feeds), handling trading halts or circuit breakers or LULD bands, planning co-location or failover and disaster recovery for exchange connectivity, implementing Rule 15c3-5 market access controls, or mapping symbology across venues and data sources. For order state machines and execution-report handling see order-lifecycle.

Guide identification, measurement, and management of operational risk in trading and brokerage operations. Use when designing trade error detection and correction procedures, investigating trade breaks and reconciliation failures, classifying loss events under Basel taxonomy, developing key risk indicators (KRIs) and dashboards, responding to system outages or data feed failures or order routing errors, conducting root cause analysis after a trade error or operational incident, planning business continuity and disaster recovery for trading desks, preparing for FINRA or SEC operational risk examinations, or assessing technology risk in OMS and market data systems. Also covers fat-finger errors, error account P&L, and corrective action tracking.

Build, fix, audit, and migrate Drift persistence in Dart CLI, server-side, and non-Flutter desktop apps. Use when adding SQLite with package:drift/native.dart, configuring PostgreSQL with drift_postgres and package:postgres, writing type-safe tables, queries, writes, streams, and migrations, resolving build_runner or drift_dev failures, or validating Dart database code with code generation, analysis, tests, and migration checks.

Guide the design and maintenance of recordkeeping programs under SEC Rules 17a-3, 17a-4, and 204-2. Use when the user asks about document retention schedules, how long to keep trade records or customer complaints, WORM storage requirements, email or text message archiving, social media capture, BYOD compliance policies, or electronic storage audit trails. Also trigger when users mention 'we got an exam request for records', 'migrating to a new archiving vendor', 'blotter retention', 'order ticket requirements', 'off-channel communications', 'WhatsApp archiving', or ask how long specific records must be kept.

x86-64 assembly skill for reading, writing, and debugging assembly code. Use when reading GCC/Clang assembly output, writing inline asm in C/C++, understanding the System V AMD64 ABI calling convention, or debugging register and stack state. Activates on queries about x86-64 assembly, AT&T vs Intel syntax, inline asm, calling conventions, SIMD intrinsics, or reading disassembly output from objdump or GDB.

Linux kernel module skill for writing and debugging loadable kernel modules. Use when writing LKMs with Kbuild, adding module parameters, creating /proc and sysfs entries, implementing character devices, debugging with KGDB or ftrace, or handling module signing for Secure Boot. Activates on queries about Linux kernel modules, loadable modules, Kbuild, module parameters, /proc filesystem, sysfs, character devices, KGDB, or module signing.