Supersede 'broker is part of the strategy'. A strategy outputs a time-ordered table of position events (event_ts, action[buy/sell/close], position_id, instrument_id, volume; open time = opening event's event_ts, so no open_ts; unsigned volume, direction in action). Brokers become downstream swappable plugins: a deterministic frictionless sim-optimal broker yields synthetic pip-equity for neutral comparison/optimization; realistic broker plugins add currency friction/constraints for viability/deploy. Stays within C7 (scalar columns). Updates CLAUDE.md invariant 7, the walking-skeleton line, provenance, and the day-in-the-life doc.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Refine the structure per interview: aura is the reusable engine, research projects are separate external repos depending on it (C16). Add aura-std (universal standard-node tier) to the workspace; remove nodes/ from the engine (project concept). Record authoring-surface = Claude Code + skills pipeline, no embedded coding-LLM (C17), and project management = one-repo-one-project + Aura-native run registry (C18). Add CLAUDE.md invariants 9-10, code_roots -> [crates], and docs/project-layout.md documenting the day-in-the-life and project repo layout.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Captures the rough-sketch interview as 15 discrete contracts (guarantee / forbids / why): determinism, causality, single-merge-at-ingestion, cycle granularity, freshness-gated recompute, firing policies A/B, SoA scalar payloads, node contract, fractal acyclic composition, the broker-is-part-of-strategy execution chain, generalized sources with the record-then-replay boundary, the atomic sim unit + four axes, authoring-only hot-reload, headless two-faced core, and resampling/sessions. Also corrects the tracker repo name to Brummel/Aura.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Cargo workspace aura-core -> aura-engine -> aura-cli (bin `aura`) plus nodes/ for hot-reloadable cdylib node crates. Crate bodies are intentionally API-free; types arrive from the first spec. Adds the skills profile (.claude/dev-cycle-profile.yml), the project CLAUDE.md with the eight domain invariants, and the design-ledger skeleton.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Brummel