Cycle-close audit (architect: drift_found; design core clean). What
holds, architect-confirmed with the guard run and the diff read in
full: the shell boundary is real and enforced (full-workspace
c28_layering incl. completeness + shell-content checks, acceptance
grep clean — no member-run symbol left under crates/aura-cli/src);
aura-campaign keeps zero production dependency on the runner; the IC
move is verbatim against the anchor; the new library-only E2E pins C1
(two independent runners, byte-identical RunReport).
Drift items, all resolved as fixes in this commit:
- design ledger: the C28 status sentence "No crate exists yet for
measurement" contradicted this cycle's own phase-3 done line — now
records aura-measurement as seeded (#295), execution still unbuilt.
- the #147 registry-dispatch acceptance tests (IC deflation null,
seeded determinism, cross-vocabulary refusal) were pure library
properties stranded in the shell's test module — relocated to
aura-measurement/tests/registry_dispatch.rs (engine/registry as
dev-only, layering-exempt edges), per the cycle's own tests-move-
with-their-module rule.
- aura-runner's direct production edge on the external data-server
tree was structurally invisible (the direction table checks aura-*
keys only) and unrecorded — the C28 assembly prose now names it, and
a new c28_layering test pins the external tree's entry points to
exactly {aura-ingest, aura-runner, aura-cli}.
- the C28 shell prose named three buckets that did not cover two real
shell residents — it now names the op-script construction front-end
(translation) and the `aura new` scaffolder (authoring-tooling,
shell-resident like rendering until a second consumer wants it).
Deliberately deferred, tracker homes exist (not drift): #297
(process::exit sites in aura-runner's single-run verb paths), #294
(IC duplicate-timestamp semantics), #288-era rustdoc unresolved-link
warnings in aura-std/aura-backtest (pre-existing byte-identically at
the anchor).
No regression scripts are configured (the bench is report-only); the
architect review is the gate. Verification: cargo test --workspace
green (1474 passed, 0 failed) incl. the relocated registry-dispatch
tests and the new data-server guard; clippy --workspace --all-targets
-D warnings clean.
refs #295
The shell no longer defines what an aura backtest is. Tasks 1-9 of the
shell-boundary cycle — structural extraction, behaviour byte-identical:
- aura-runner (new; the C28 assembly position): input binding (the C26
module, moved whole), the C1-load-bearing param<->config translators,
harness assembly (wrap_r / run_signal_r / run_blueprint_member and the
probe/reopen cluster), axis + risk-regime conventions (bind_axes et
al.), the campaign family builders + MC guards, reproduce
(process::exit -> RunnerError, shell remaps to identical bytes), the
measurement-run orchestration, project loading (Env / cdylib load /
charter / staleness, moved whole), the coverage gap-walk (deduplicated
onto interior_gap_months), and DefaultMemberRunner — the public
implementation of aura_campaign::MemberRunner (ex CliMemberRunner).
The MemberRunner trait stays in aura-campaign; the column still
imports no harness/data-binding machinery.
- aura-measurement (new; seeds C28 rung 3): the IcMetrics/IcKey
vocabulary + information_coefficient, verbatim incl. serde derives
(#294 duplicate-timestamp semantics move as-is, unresolved).
- aura-backtest: the pure per-run scaffold (point_from_params,
wf_ms_sizes / fit_wf_ms_sizes, intersect_shared_window).
- shell residue: main.rs / campaign_run.rs keep argv/dispatch,
argv->document translation, and presentation only;
walkforward_summary_json_from_reports now calls the public
aura_engine::param_stability instead of its inline twin.
- worked example (crates/aura-runner/examples/world_member_run.rs): a
World program runs a member backtest through the library alone.
Held quality findings, adjudicated: the plan's literal pub-visibility
list for binding.rs kept (cosmetic); ~20 refusal sites inside
aura-runner (family/member/measure/translate) still process::exit —
behaviour-identical today, conversion to RunnerError is filed forward
(refs #297); rustfmt line-width drift on re-pathed call sites left for
a repo-wide fmt decision.
Verification: cargo test --workspace green (1471 passed, 0 failed);
cargo clippy --workspace --all-targets -D warnings clean. Byte-identity
is pinned by the untouched shell E2E suites (cli_run, measure_ic,
run_measurement, research_docs, run_refuses_unrunnable_blueprint,
tap_recording — zero assertion edits).
Remaining in this cycle: full-workspace c28_layering + shell-content
check, ledger amendments (C28 assembly position, C25/C14 control-surface
consequence, C26 realization note).
refs #295
claude