User-mandated addition:
Invariant 9 — No deferred work, no stubs, no TODO/FIXME
Every commit lands complete. No stubs (placeholder return values), no
TODO/FIXME/XXX/HACK/TBD markers, no half-finished implementations. If
it can't finish in this commit, it doesn't start. Stubs and deferrals
train the network on semantic emptiness — invisible in convergence
metrics but burn GPU time optimising against partly-fake signal.
Authority: feedback_no_stubs.md, feedback_no_todo_fixme.md,
feedback_no_quickfixes.md elevated to first-class spec enforcement.
Pre-commit hook greps for forbidden markers.
Part E decisions made concrete (per Invariant 9):
- E.1 TFT VSN: IN (full VSN extension)
- E.2 GRN: IN if A.5 audit finds absent (otherwise mark existing as canonical)
- E.3 Multi-quantile heads: IN (5/25/50/75/95 quantile decomposition)
- E.4 Encoder-decoder: IN (extends D.3 to full trunk/head separation)
- E.5 Interpretability: IN (attention-weight ISV diagnostics)
- E.6 Auxiliary heads: IN (next-return + regime-classification)
- xLSTM: OUT (redundant with Mamba2+TLOB; YAGNI)
- KAN: OUT (function approx not a bottleneck)
No "evaluate later" items. Every concept either lands or explicitly
doesn't, with rationale.
§8 decisions tightened:
- D.8 TLOB mode: decision criterion = per-step cost benchmark ≤ 5ms
- C.6 controller order: fixed in spec (atoms→gamma→Kelly→cql_alpha→
tau→epsilon→conviction_floor→plan_threshold→balancer)
- A.3 resource plan: auto-switch L40S→H100 at 12 GPU-hour threshold
- A.4 metric band init: [mean − 3σ, mean + 3σ] from last 3 good runs
No discretionary "we'll see" remain. All decisions data/order/budget/
statistic-driven.
Counter updates: "seven invariants" → "nine" in §3 header and §5
cleanup contract.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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