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feat(scanners): model/effort routing becomes a lever, not a 25th dimension (C4)

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New GAP finding CA-GAP-028: authored subagents exist and not one of them names
`model:` or `effort:`, so every delegated task runs on the main conversation's
model (`model` defaults to `inherit`). Cites BP-MODEL-001/002, landed in C1.
`whats-active` and `manifest` now carry `model`/`effort` per agent.

Shipped as a conditional LEVER rather than a 25th dimension, and the choice was
made by measurement: as a t3 dimension the agent-less marketplace-medium fixture
would count it vacuously-present, moving the denominators 41->42 and utilization
44->45 — which flips `segment` "Developing"->"Competent" in the frozen v5.0.0
posture baseline, a field strip-retired-gap.mjs does not mask. A lever never
enters those denominators. The general rule is now an invariant in CLAUDE.md.

One check across both axes, not one per axis: it fires only when neither is used
anywhere, so a deliberate everything-on-one-model policy stays silent. Cost is
recall, chosen for precision.

Found by dogfooding, fixed red-first: `model: inherit` is the documented default
spelled out, so it must not count as routing — otherwise a config opts out of the
opportunity without changing anything real.

Two pre-existing defects surfaced and closed on the way:
- The humanizer guard asserted TRANSLATIONS.GAP.static EQUALS the dimension
  titles, which forbade humanizing any lever — all three existing levers fell
  through to the generic "feature opportunity" default, wrong for a budget lever.
  Guard now requires coverage of every emittable title, seen red against those
  three before the entries were written.
- Two hand-written copies of the lever list (finding-codes guard, humanizer
  guard) merged into one exported LEVERS registry carrying code AND title.
- suppression-validation pinned CA-GAP-028 as an unoccupied number; C4 claimed
  it. Fixed structurally with a derived first-free id, not by picking a new
  literal — same class as #60's "bump this again".

Suite 1596/0. Frozen v5.0.0 snapshots untouched.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Pq3nye21RVYk4pZLeT8pGz
This commit is contained in:
Kjell Tore Guttormsen 2026-08-10 05:07:23 +02:00
commit 9ae4be26d2
16 changed files with 512 additions and 31 deletions
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8
scanners/lib/finding-codes.mjs
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@ -209,8 +209,11 @@ export const FINDING_CODES = {
},
// ── GAP: feature-gap-scanner ────────────────────────────────────────────
// Keys are GAP_CHECKS[].id (already stable). Dimensions 1–24 in table order,
// then the three conditional levers, which the scanner emits after the loop.
// Keys are GAP_CHECKS[].id for dimensions, and the lever code for the
// conditional levers the scanner emits after the loop. Numbers 1–24 happen to
// follow the current table order because that is how the dimensions were first
// published — NOT because position determines the number. A new check takes the
// next free number wherever it sits in the file (M-BUG-28).
GAP: {
t1_1: 1,
t1_2: 2,
@ -239,6 +242,7 @@ export const FINDING_CODES = {
'bundled-skills-lever': 25,
'cli-over-mcp-lever': 26,
'filter-hook-output-lever': 27,
'agent-model-routing-lever': 28,
},
};