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6 Commits

Author SHA1 Message Date
Brummel 4de6d5cbad rename: retire the stage1-* family for the r-family (r-sma / r-breakout / r-meanrev)
The stage1 ordinal has been dead vocabulary since the C10 reframe dropped
the two-stage research model: a 1 structurally implies a 2 that no longer
exists. The family is renamed by its live discriminator - the R yardstick -
with members named by their signal, uniform with their signal-named
siblings (sma, macd, momentum):

- selectors: stage1-r -> r-sma, stage1-breakout -> r-breakout,
  stage1-meanrev -> r-meanrev (old tokens are usage errors, exit 2 - no
  silent alias)
- identifiers: Strategy::RSma/RBreakout/RMeanRev, HarnessKind::RSma,
  r_sma_*/r_breakout_*/r_meanrev_*, wrap_r, run_signal_r, RGrid, R_SMA_*
- persisted identity: the sma_signal composite (param prefix
  sma_signal.fast.length / .slow.length; fixtures regenerated; content-ids
  shift - no test pins a literal hash, the registry parses no record names)
- e2e test files git-mv'd to r_sma_e2e / r_breakout_e2e / r_meanrev_e2e
- dead Stage-1/Stage-2 prose reworded to post-C10 vocabulary across
  rustdoc, Cargo.tomls, ledger live lines, and the glossary (historical
  entries stay; fieldtests corpus untouched)
- CLAUDE.md invariant 7 rewritten to record the ratified C10 reframe
  faithfully (the token-swap alone would have laundered the retired
  gated-currency/realistic-broker design into unmarked live prose); the
  unbacked account-mode clause dropped

Verification: cargo build/test --workspace green (51 targets), clippy
-D warnings clean, doc build clean, acceptance grep gate leaves exactly
the one resampling-stage false positive (harness.rs), smoke: --harness
r-sma runs, --harness stage1-r exits 2 with the new usage line.

Decision log: forks and rationale recorded on the issue (reconciliation
+ implementation-phase comments).

closes #174
2026-07-02 12:03:09 +02:00
Brummel 4e6b1d9b53 audit(stage1-r): cycle-0065 close — ledger records the Stage-1 R signal-quality layer
Architect drift review of cycle 0065 (Stage-1 R: the exposure->bias rename, the
stop-rule + vol_stop, PositionManagement's dense R-record, the Sizer, summarize_r,
the public RiskExecutor, and the CLI surface): code is drift-clean - C10 fidelity
holds (bias->stop->Sizer->PositionManagement, flat-1R feed-forward, R stop-defined
and size-invariant, guarded by the cross-crate layout lockstep test), C9/C23
acyclic, the --harness selector is a compile-time match (no runtime registry/DSL,
C17). The milestone fieldtest is green after the tiny-pip tolerance fix (2ee0d74).

Lifted to the ledger (docs/design/INDEX.md):
- A C10 realization note for cycle 0065 recording the built Stage-1 R layer (the
  chain, the public RiskExecutor + StopRule axis, the CLI surface, the scale-robust
  guard, the aura-engine->aura-std normal dep) and that Stage 2
  (currency/compounding/realistic brokers) stays the deferred downstream layer.
- Amended the C10 contract's "pending Stage-1 implementation" line (it landed).

Fixed stale prose introduced by iter-3's dependency-tier change: report.rs and
position_management.rs comments cited "aura-std is only a dev-dependency" as the
rationale for the by-convention dense-record layout contract; iter-3 made it a
normal dependency, so that rationale was false. Reworded to the real,
dep-tier-independent reason - the record crosses the crate boundary as a
type-erased Scalar vector (C4 SoA), read positionally, guarded by stage1_r_e2e.rs.

Carry-on filed as follow-ons (not actioned): the exposure->bias rename tail (the
serde-stable exposure_sign_flips key + slot/param names - commented on #126, the
recommended next iteration); CLI UX friction (#131); stage1-r harness cosmetic
smells (#132); R-sweep families + rank-by-sqn (#133).

This is a drift-clean cycle-close audit, NOT a milestone-container close: the
ephemeral spec/plans stay (spec 0065's change (a) still scopes the deferred rename
tail) and the milestone close stays a deliberate act for the user.

cargo build/test --workspace green; clippy --workspace --all-targets -D warnings clean.

refs #117 #126
2026-06-24 12:35:15 +02:00
Brummel 2ee0d74a8c fix(stage1-r): scale-robust tolerance for the R-record redundancy guard
The PositionManagement redundancy `debug_assert` (position_management.rs:229)
re-derives realized_r from the dense-record columns as
dir*(exit-entry)/|entry-stop| and compared it to the stored value with an
ABSOLUTE < 1e-9 tolerance. At tiny-pip price scale (EURUSD/GBPUSD entry ~1.1,
vol-stop distance ~1e-6) the denominator reconstruction `entry - stop` is a
catastrophic-cancellation subtraction that loses ~6 significant digits; with a
deep gap-through-stop realising a large |R|, the recomputed R drifts from the
(correct) stored realized_r by more than 1e-9 - so a debug build PANICS (exit
101) while a release build (assert compiled out) returns the correct R. GER40
(large pip) never trips it.

Found by the Stage-1 R milestone fieldtest: `aura run --harness stage1-r --real
EURUSD` crashed the headline "score real FX in R" use case on the default (debug)
build, and the debug/release disagreement made the R numbers' validity
unknowable from the public surface.

Root cause (via debug): the stored realized_r uses the cancellation-free FROZEN
latched_dist and is exact - only the guard's tolerance was wrong for small price
scales. Fix: a scale-robust relative tolerance `< 1e-9 * realized.abs().max(1.0)`
(floored at the historical 1e-9 for |R| <= 1, so no change for normal-scale runs).

RED-first: the hermetic synthetic-tiny-pip test
`tiny_pip_gap_stop_does_not_trip_the_redundancy_guard` reproduces the panic and is
pinned here. Verified end-to-end: `aura run --harness stage1-r --real EURUSD` now
returns the R block (exit 0) on a debug build. cargo test --workspace green;
clippy --workspace --all-targets -D warnings clean.

refs #117
2026-06-24 12:30:08 +02:00
Brummel 92591e5dc0 refactor(stage1-r): name the conviction column conviction_at_entry
Rename the dense PositionManagement record's column 9 from `bias_at_entry_abs`
to `conviction_at_entry` (FIELD_NAMES, the `r_col`/test index constants, the
cross-crate layout guard, and the doc comments).

Why: the column holds |bias| at entry, which C10 defines AS conviction (bias =
direction + conviction magnitude; ledger INDEX.md ~458). The record already names
the other half of that decomposition by its domain concept (`direction` = sign,
not `bias_sign`), so naming the magnitude half mechanically (`bias_at_entry_abs`)
was an inconsistency; `conviction_at_entry` speaks the ledger's ubiquitous
language and parallels `direction`, while `_at_entry` preserves the
frozen-snapshot precision.

Considered and rejected: collapsing `(direction, bias_at_entry_abs)` into one
signed `bias_at_entry` and dropping `direction` as redundant — it is not
redundant. On a reversal row col 4 (`direction`) tracks the reopened leg while
col 9 tracks the closed trade's entry conviction, so the two describe different
trades and cannot be losslessly merged; they are also distinct semantic axes
(current-position direction vs per-trade entry conviction).

Scope: domain name at the data boundary, mechanical name internally — the
internal `bias.abs()` variables (`Open.bias_abs`, the fold's `Trade.bias_abs`)
keep their computation-faithful names, exactly the raw-internal / domain-external
split the record uses elsewhere.

Behaviour-preserving: cargo build --workspace clean; cargo test --workspace 500
passed, 0 failed (unchanged); clippy --all-targets -D warnings clean. The layout
guard (`r_col_indices_match_producer_field_layout`) confirms the renamed string.

refs #117
2026-06-24 10:25:18 +02:00
Brummel b4e84335c4 feat(stage1-r): Sizer + RiskExecutor + R-metric enrichment (iter 2)
Iteration 2 of cycle 0065 (Stage-1 R signal quality) — the node + metric layer.
Builds on iter-1's PositionManagement dense R-record + core summarize_r.

What ships:

- PositionManagement gains a 4th `size` input (slot 3 -> col 10), fed by the
  Sizer. R is computed size-INVARIANTLY (pure stop-distance ratio), so size
  never touches realized_r — pinned by a RED test (scaling size leaves every
  realized_r unchanged) at the node and again end-to-end through the executor.

- Sizer (aura-std): `size = risk_budget / stop_distance` — flat-1R (risk_budget
  1.0 => one risk unit per trade, size inversely proportional to the stop, not a
  constant). Reads bias (firing/presence) + stop_distance; the Stage-2
  fixed-fractional sizer slots in unchanged (swap risk_budget for
  risk_fraction*equity, same node shape).

- summarize_r enrichment: SQN (sqrt(n)*mean_R/sample-stdev_R; n<2 or zero-variance
  -> 0), conviction_terciles_r (E[R] by |bias_at_entry| tercile), net_expectancy_r
  (gross minus one round-trip cost per trade, charged in R via the latched_dist
  recovered from the entry_price/stop_price columns). summarize_r gains a
  `round_trip_cost` param (price units). The net-of-cost recovery is tested
  through the real producer->consumer seam, not just hand-built rows.

- RunMetrics.r: Option<RMetrics> with #[serde(default, skip_serializing_if =
  "Option::is_none")] — legacy runs.jsonl (no `r` key) deserialise to None and a
  pip-only run's on-disk shape stays byte-unchanged (C14/C18 back-compat). Every
  RunMetrics literal threaded (report.rs, aura-registry, aura-engine/mc).

- RiskExecutor (aura-engine integration-test fixture, sibling of
  vol_stop_composite): FixedStop -> Sizer -> PositionManagement behind open
  bias+price input roles, price fanned to both the stop and PM, the Sizer's size
  into PM. Bias is produced in-graph from the single price source (a second bias
  *source* would k-way-merge into separate cycles and mark stale prices). The
  Veto is a DOCUMENTED SEAM, not a runtime node (a pass-through identity is what
  C19/C23 DCE deletes). Tests: the composite bootstraps + runs + folds to the
  documented hand value; R invariant under risk_budget while the size column
  scales; a live-folded RMetrics survives the RunMetrics serde round-trip.

The dense-record size column (10) is brought under the cross-crate layout guard
(stage1_r_e2e r_col_indices_match_producer_field_layout) so the executor
fixture's size-invariance read is drift-protected like the others.

Scope: the CLI/recording surface (#129) is sub-split into a separate iteration 3
and is NOT in this commit.

Verified: cargo build --workspace clean; cargo test --workspace 500 passed,
0 failed; cargo clippy --workspace --all-targets -D warnings clean.

refs #117 #127 #128 #129
2026-06-24 02:15:51 +02:00
Brummel 2c43296c2c feat(stage1-r): bias rename + stop-rule + position-management + summarize_r (iter 1)
Iteration 1 of the Stage-1 "R-based signal quality" cycle (spec 0065): a
strategy's signal quality, measured in R on its unsized bias stream, feed-forward.
New discrete-trade machinery, NOT a SimBroker extension.

What lands:
- exposure -> bias (refs #126): the Exposure node/type/file/output-field renamed to
  Bias (computation unchanged: clamp(signal/scale,-1,+1); the SEMANTICS change — the
  output is the unsized strategy bias, sizing leaves the strategy). Scoped to the
  semantic core; behaviour-preserving cosmetics are deferred (see below).
- stop-rule nodes (refs #119): VolStop = k*EMA(|price - prev_price|) (one fused node;
  the volatility that defines 1R, close-to-close — true-range ATR deferred, needs
  OHLC) + FixedStop (constant, the test fixture / fixed-vs-vol structural-axis sibling).
- PositionManagement (refs #127): the stateful heart. Latches the entry-cycle stop
  distance as the FROZEN R-denominator (never re-read), marks/exits no-look-ahead like
  SimBroker (a position earns from the next cycle; an exit realises against the cycle's
  close), and emits ONE dense per-cycle R-record (C8). Stop-outs are NOT capped at -1R
  (a gap through the stop realises R < -1 — the honest loss tail); R is computed
  size-invariantly (size = (exit-entry)*dir / latched_dist cancels). The trade ledger
  is the rows where closed_this_cycle; the R-equity is cum_realized + unrealized; a
  position open at window end is the last row (open=true) — explicit, never silent MtM.
- summarize_r + RMetrics (refs #129): the post-run fold (NOT an in-graph node —
  recorders drain post-run). E[R], win-rate, profit-factor, avg win/loss R, by-trade
  max R-drawdown, n_open_at_end (window-end force-close). SQN / conviction terciles /
  net-of-cost / RunMetrics.r are iteration 2.

Design adversarially hardened before implementation (12-juror refute panel; decisions
on #117). Ratified implementer deviations from the plan snippet, verified by hand:
- col-4 `direction` tracks the OPEN position at cycle end (window-end synthesis; names
  the reopened leg on a reversal), falling back to the closed trade's dir only when
  flat. summarize_r does not read col 4; the R-metrics are unaffected.
- .named("exposure") kept on the 4 previously-unnamed Bias nodes so the auto-derived
  param-path stays exposure.scale (no manifest/dir-name drift) — the unnamed nodes
  would otherwise flip to bias.scale.
- intra-doc links [`Exposure`] -> [`Bias`] in sim_broker/latch + the sample-model test
  pin (cosmetic, behaviour-neutral; broken intra-doc links fail cargo doc).
- the E2E drives a full bootstrapped Harness (stronger than the plan's direct-node
  drive — exercises the real cross-crate producer->consumer seam).

Deferred (behaviour-preserving, separate cosmetic pass — NOT this iteration):
RunMetrics.exposure_sign_flips / Metric::ExposureSignFlips, SimBroker/LongOnly
"exposure" input ports, the "exposure" tap/trace names, and the .named("exposure")
instance labels. Iteration 2: the Sizer seam, the RiskExecutor composite (+ the Veto
documented-seam), summarize_r enrichment, RunMetrics.r, and the CLI/recording surface.

Verification (orchestrator-run, not agent-claimed):
- cargo build --workspace: clean.
- cargo test --workspace: all green, 0 failed (incl. the new bias/stop_rule/
  position_management unit tests, the summarize_r arithmetic tests, and the
  stage1_r_e2e capstone + layout guard).
- cargo clippy --workspace --all-targets -- -D warnings: clean (exit 0).
- Keystone RED tests pass: no_lookahead_bias_exit_realises_the_held_move,
  stop_out_is_not_capped_at_minus_one_r, no_gap_stop_is_exactly_minus_one_r,
  reversal_closes_one_leg_and_reopens, open_at_window_end_is_carried_on_the_last_row.

refs #117 #119 #126 #127 #129
2026-06-23 19:48:58 +02:00