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WASM Monte Carlo kernel — differential-tested Rust pilot (PAT-PLATFORM-RUST-1)
HO-301/HO-559: the pa-montecarlo Rust/WASM kernel (vendored from devplane @ 79ec7d62, wasm sha256-verified) behind an async getMonteCarloKernel() seam with the TS kernel as default. Cutover is a DECISION, not a merge side effect: WASM runs only under FORECASTING_WASM_KERNEL=1; load failure falls back to TS with kernelStatus() recorded (never silent). Differential-tested: every golden vector runs against BOTH kernels (bit-exact except the HO-358 pow reclassification at relTol 1e-9); bench artifact docs/artifacts/montecarlo-wasm-bench.json records measured medians — verdict cutover-ready (1.09-1.52x at 100k-1M trials; one sub-material 10k regression recorded verbatim). FINDING preserved: current-Node TS drifts from the committed vectors by <=3.8e-16 on transcendental paths (V8 math drift) — WASM matches the vectors MORE closely than today's TS.
- Cluster
- Platform
- Type
- infra
- Status
- Live
- Used by
- people-analytics-toolbox
Maturity evidence
- Functioning
- golden.test.ts 26/26 — TS battery 12 + WASM battery 12 + WASM load-assert (fails loudly, never skips) + coverage; three callers (route, MCP, insight-cards) routed through the seam; outputFileTracingIncludes added for the .wasm on all three serving routes.
- Valuable
- Verdict cutover-ready (bench artifact) but FORECASTING_WASM_KERNEL default not flipped — the flip is Mike's/orchestrator's call on the evidence, then value = 1.5x on mixed-multivar at contract-max trials.
- Understood
- kernel.ts header + bench artifact + the V8-drift finding recorded; differential-before-cutover doctrine per devplane DP-202a harness.
- Integrated
- Seam wired into all callers but the WASM path is dormant behind the env flag; Vercel-runtime WASM load is verified only by tracing config until a flagged deploy exercises it.
How to use it
Not surfaced with a callable endpoint yet — still building. Tell us you want WASM Monte Carlo kernel — differential-tested Rust pilot (PAT-PLATFORM-RUST-1)and we’ll prioritize it.
Request WASM Monte Carlo kernel — differential-tested Rust pilot (PAT-PLATFORM-RUST-1)Other Platform capabilities
- Comp audit self-serve — CSV intake, free validate, commerce-gated watermarked run (HO-155)
- Gift pass — gifted ownership on the entitlement store (magic-link claim)
- JobFrame canonical Job Family × Focus × Level taxonomy + classifier
- SMB pay-system wizard — chocolate/vanilla over the pay-system catalog
- Support channel — portfolio-wide /support form → ticket store → operator email
- Ask-your-data — generalizable NL→rank→tier→cite spoke (HO-378)
- Diagnostic acquisition — next-best-ask over a live hypothesis set
- Executive-Priorities Elicitation Instruments (static catalog)
Capability detail sourced from the People Analytics Toolbox capability feed (source of truth), snapshot retrieved 2026-07-23.