coulomb/clay-borg
4
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

CB-WP-0013-T02/T03: retire SH-3 as a gate; correct AM-4a and its target

Browse source 
ADR-0008, tier M (survey and ADR merged).

D1 — SH-3 retired as a gate, kept as a diagnostic. Investigating it
found a third defect, deeper than the two this pass was declared on.
Re-deriving batching from the raw transcripts, independently of cb-cost:

  CB-WP-0011 pass      54 with tools    0 batched    0.0%
    gap -> next decl   16 with tools    6 batched   37.5%
  CB-WP-0012 pass      86 with tools    0 batched    0.0%
    gap -> next decl   10 with tools    1 batched   10.0%
  CB-WP-0013 so far    10 with tools    0 batched    0.0%

Zero batched turns in 150 in-pass responses; 37.5% in one gap, above the
20% floor. Batching needs two calls whose inputs are known at once —
orientation work. Implementation consumes each step's result before the
next. SH-3's window is since the last commit, which during a pass is
always implementation. The metric could not read above ~0% in the window
it was gated on. A floor the window structurally excludes is not a
target.

This pass's own declaration was also wrong: it claimed batching "has got
worse" (7.8-8.6% vs 1.1-6.3%). Differently-placed windows, not different
behaviour. Withdrawn — the same class of error, in the pass written to
correct it.

Not retargeting to match the measurement: the floor was not moved to 6%,
the gate was removed on an argument about what the quantity is worth.
The number is still reported; only the verdict is gone.

D2/D3 — AM-4a counts --edges normal,no-proc-macro: 157,202, not 246,250.
The target moves down with it, 250,000 -> 161,000, so the correction
hands back essentially nothing (headroom 3,750 -> 3,798). Three controls:
the exclusion drops exactly the five expected crates, only removes and
never adds, and is not a no-op.

The DFD gate then caught the follow-on it exists for — three historical
documents carrying live fact tags for a number that had changed. Not
rewritten; untagged, with a supersession banner.

AM-4b is deliberately not corrected: its proc-macro share is unmeasured.

gate-review now reads 0 due, 0 silent, 0 drifted — GATE-REVIEW earns its
first caught entry by forcing SH-3's re-justification, and the registry
has no silent gates left.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
tegwick 2026-08-02 07:30:14 +02:00
parent 6080c4cf60
commit d2c3f340f9
9 changed files with 306 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

10
decisions/ADR-0004-am4-ratification.md
View file

@ -1,5 +1,13 @@
# ADR-0004: ratify AM-4a and AM-4b
> **Superseded measurement (ADR-0008 D2/D3, 2026-08-02).** The AM-4a
> figures below were taken with an instrument that counted proc-macro
> crates — 89,048 lines, 36.2% — which run in the compiler and never
> reach a binary. Corrected, the same tree measures **157,202** against
> a target moved to **161,000**. The numbers below are left as the
> record of what was measured then, and are no longer live facts.
status: accepted
date: 2026-07-31
decided by: maintainer (Bernd Worsch), 2026-07-31
@ -49,7 +57,7 @@ At the time of the retarget, `make dep-weight`:
| configuration | crates | third-party LOC |
|---|---|---|
| shipped-runtime (`--no-default-features`) | 23 | **246,250** | <!-- fact:am4a_loc -->
| shipped-runtime (`--no-default-features`) | 23 | **246,250** | <!-- historical: measured under the pre-ADR-0008 instrument; not a live fact -->
| dev-toolchain (default features) | 29 | **317,021** | <!-- fact:am4b_loc -->
| own source | — | 3,443 |