feat(agents): pin dispatched judgment agents to opus — Fable = inline reflection only (BDR-076)

Reverses the BDR-066 rejected alternative (opus pins on audit agents):
session default is now Fable, so inherit burned Fable quota on every
dispatched audit/challenge. analyzer, plan-challenger, seo/geo/
validator-analyzer pinned model: opus; onboard's 6 general-purpose
audit dispatches carry model="opus"; tour Phase B repointed.
interviewer + client-handover-writer stay unpinned (inline-load only,
a pin there is inert). settings.json default: claude-fable-5[1m].
Census flipped: model-routing §3 + new §11 (61 pass), loops-light 35,
full make test green.

agents/analyzer.md

@@ -2,6 +2,7 @@
 name: analyzer
 description: Analyze code, codebase, or problem before any modification. Produces a factual report without proposing solutions. Use proactively before any refactoring, design, or implementation.
 tools: Read, Grep, Glob, Bash
+model: opus
 memory: project
 ---
 

agents/geo-analyzer.md

@@ -2,6 +2,7 @@
 name: geo-analyzer
 description: GEO audit agent for AI search engines — dispatched by /geo and /seo. Audits AI crawlers, llms.txt, entity signals, Schema.org; emits a fix bundle (dispatcher applies), scored report. Classical SEO → seo-analyzer agent.
 tools: Read, Edit, Write, Bash, Grep, Glob, WebFetch, WebSearch
+model: opus
 ---
 
 # GEO — Generative Engine Optimization audit, fix & strategy

agents/plan-challenger.md

@@ -2,6 +2,7 @@
 name: plan-challenger
 description: Fresh independent plan challenger — reads a PLAN file from disk and adversarially attacks it through ONE assigned lens (correctness | robustness | simplicity), then renders structured findings + a verdict. Report-only, never fixes, never implements. Dispatched fresh; blind to the other lenses.
 tools: Read, Grep, Glob, Bash
+model: opus
 ---
 
 # PLAN-CHALLENGER AGENT
@@ -93,8 +94,10 @@ the MAIN loop, never here):
 
 - Dispatch THREE fresh challengers IN PARALLEL, one per lens
   (correctness / robustness / simplicity), each blind to the others.
-- MODEL (BDR-066): plan critique is AUDIT JUDGMENT, not a procedural gate — do
-  NOT pin `model: "sonnet"`; the challenger inherits the big session model.
+- MODEL (BDR-076, supersedes the BDR-066 inherit): plan critique is AUDIT
+  JUDGMENT, not a procedural gate — the challenger is `model: opus`-pinned in
+  its frontmatter (big tier, session-independent; the session model stays on
+  the inline loop). Never `model: "sonnet"` — a silent judgment downgrade.
   (Contrast the verifier, Sonnet-pinned only because it is oracle-anchored to a
   contract.)
 - FAIL-SAFE — never fail open: a malformed/empty verdict, a missing `PROOF`, or

agents/seo-analyzer.md

@@ -2,6 +2,7 @@
 name: seo-analyzer
 description: 'Classical SEO audit agent (Google, Bing) — dispatched from /seo. Live audit: Core Web Vitals, on-page, technical, local SEO, legal (FR). Emits a fix bundle (dispatcher applies) + scored report. AI/GEO → geo-analyzer agent.'
 tools: Read, Edit, Write, Bash, Grep, Glob, WebFetch, WebSearch
+model: opus
 ---
 
 # SEO — Classical Search Engines audit, fix & strategy

agents/validator-analyzer.md

@@ -2,6 +2,7 @@
 name: validator-analyzer
 description: Web standards audit agent — W3C HTML validity (validator.nu), W3C CSS validity (jigsaw.w3.org), WCAG 2.1 accessibility (axe-core, pa11y, WAVE). Dispatched from /web-validate. Produces scored .claude/audits/VALIDATE.md report with concrete diffs for auto-fixable issues and user actions for judgment-required fixes. Complementary to /harden (security), /seo (indexability), /geo (AI extraction).
 tools: Read, Edit, Write, Bash, Grep, Glob, WebFetch
+model: opus
 ---
 
 # Validator — W3C + WCAG audit