claude
8688a60ded
The single-file ledger had grown to 2968 lines / ~42k tokens, mixing current design law with accreted history: 59 cycle-stamped realization blocks, 18 [HISTORY] passages, 22 supersession markers, and the C10 / C22 / C24 reframe sagas layered several supersessions deep. A code-grounding audit (31 agents, adversarially verified) confirmed 11 defects stated as current truth: stale crate homes from the C28 #288 roster split (cost nodes, PositionManagement, PositionEvent, Session), the renamed InputSpec->PortSpec, the pre-#241 project model in C16 and the open-threads section, a stale HarnessKind retirement deferral in C24, and three C28-internal inconsistencies. New shape, per the ailang precedent: - INDEX.md stays the sole addressable entry point: foundation, external components, a C-id-keyed contract map (one line per contract), and only the genuinely open architectural threads. - contracts/cNN-<slug>.md carries each contract's current truth only: Guarantee / Forbids / Why with ratified refinements integrated, plus a code-anchored Current state. All confirmed defects are fixed here; crate anchors were re-verified against the tree. - contracts/cNN-<slug>.history.md (18 sidecars) and INDEX.history.md preserve every superseded block verbatim, stamps and issue refs intact, under a frozen-record banner. Nothing was deleted: superseded design intent remains an addressable working-tree artifact, off the per-cycle audit walk. - Ledger discipline is now stated in INDEX.md: live files are edited in place at cycle close, superseded text moves verbatim to the sidecar, and a supersession marker in a live file is itself an audit finding. Every contract file was verified against its old text by an independent zero-loss pass (statement-by-statement) plus a code-accuracy spot check; C-ids and contract titles are unchanged, so existing C-id citations in code, tests, and issues resolve as before.
2.5 KiB
C12 — The atomic sim unit and the four orchestration axes: history
FROZEN HISTORICAL RECORD. Each block below was true as of its cycle/date stamp and may be superseded; this file is NOT current truth and NOT a grounding surface. Current contract: c12-atomic-sim-unit.md.
Realization (cycles 0028, 0049). Axis 1 (param-sweep) is built. GridSpace
(0028) enumerates a cartesian lattice over discrete per-slot value-lists;
RandomSpace (0049) draws N seeded points over typed continuous ParamRanges
(I64 inclusive [lo,hi], F64 half-open [lo,hi)), validated against the
param-space before any run. Both implement the Space trait the disjoint
sweep / run_indexed core is generic over, so either enumeration runs through
one execution path (C1: results in enumeration order, not completion order). The
seeded sampler reuses the bit-stable SplitMix64 as a code-path-disjoint
instance from the data-edge seed RNG (the source-seam firewall, #52/#71: they
share only the u64 type, never a path).
Realization (cycle 0041). The eager ingestion of cycle 0011 is no longer the
only path. Harness::run is re-typed to a producer seam — a Source trait
(peek/next, object-safe) the k-way merge drives — and a streaming
M1FieldSource (aura-ingest) pulls a data-server window lazily, borrowing
one Arc<[M1Parsed]> chunk per pull (zero-copy within a source) and
decoding each Scalar on demand: the source ring is resident O(one chunk),
not O(window length) — the measured resident_records() predicate, a per-source
bound, not whole-process RSS. (Data-server's FileCache retains each window's
parsed chunks read-only for the pass — ~56 B/record — so process residency is
O(records-touched); that is the replay-many sharing C12 wants — one window
parsed once across a sweep family — not a leak. The single-pass cost is tracked as
#95.) The eager load_m1_window/close_stream path is kept for bounded loads (the
gap closes by a streaming path existing, not by deleting the eager one). Realized
(2026-06-29, family cycles shipped). cross-sim Arc<[T]> sharing — one window shared
zero-copy across many disjoint sweep sims — is now in force: the sweep / Monte-Carlo /
walk-forward families (axes 2–4 above) build their members over one shared
Arc<DataServer> (one FileCache), so a window is parsed once and every member's
M1FieldSource borrows the same cached Arc<[M1Parsed]> chunks
(crates/aura-ingest/src/lib.rs:316). The single-pass parse cost stays tracked as #95.