feat(claude): Opus advisor, reviewers pinned

docs/plans/2026-10-22-cut-model-cost.md

@@ -0,0 +1,28 @@
+---
+canonical: relais:docs/plans/2026-10-22-cut-model-cost.md
+phases: [A]
+status: active
+---
+# Cut model cost where the money is (pointer)
+
+The plan lives in relais, which owns ADR-0001 (the session router) and
+ADR-0006 (typed research routing). This repository carries Part A: an Opus
+advisor behind the routed session (`advisorModel`), with the reviewer agents
+pinned to Opus first so the router never lowers them.
+
+## Verification
+
+- Probe: `claude -p --model sonnet --advisor opus` → advisor ran:
+  `~/.claude/projects/-private-tmp-claude-501-advisor-probe/5992a938-81bb-4e8a-b5ff-812c65d64eb4.jsonl:29`
+  holds `"type":"server_tool_use",…,"name":"advisor"`; Opus 26,185 input tokens, $0.116 per consult,
+  uncached. `--model haiku --advisor opus` → Opus $0.115. Both through the local proxy.
+- `grep -L '^model:' dot_claude/agents/*.md` → empty (13 pinned).
+- Deviation from Part A step 4: no full `chezmoi apply`. The live `~/.claude/settings.json` holds keys the
+  source lacks (apiKeyHelper, ANTHROPIC_BASE_URL, amont-agent hooks, relais paths; `chezmoi status`: MM),
+  so only the 13 agent targets are applied, and the same `advisorModel` line goes into the live file by
+  hand. holds-until: the live-only keys are reconciled into the source.
+
+## Implementation review
+
+approve-with-changes. Both findings fixed here: the targeted-apply deviation and the probe record above.
+29.8k tokens, 38 s.

dot_claude/agents/implementation-review.md

@@ -2,6 +2,7 @@
 name: implementation-review
 description: The one independent reviewer of an implementation before its push (ADR-0022, work.implementation-review). Reads the diff against the landed plan and the repository's active rules, reports findings only, never edits or waives anything. Launched by worktree-task F4b with a `<<<TREE repo=… sha=…>>>` block; the amont-agent implementation-review hook checks at `git push` that it ran for the tree being pushed.
 tools: Read, Grep, Glob, LSP
+model: opus
 ---
 Catches: a change about to be pushed that departs from its approved plan, records a check it cannot have run, breaks an active rule, or adds a test that cannot fail.
 

dot_claude/agents/interface-review.md

@@ -2,6 +2,7 @@
 name: interface-review
 description: Independent interface reviewer of a change before its push, launched by worktree-task F4b step 2b. Follows ~/.claude/skills/interface-review/SKILL.md on the diff in its brief, reports findings only, never edits.
 tools: Read, Grep, Glob, LSP, mcp__duro-ds__duro_ds_lookup
+model: opus
 ---
 Catches: an interface change that breaks accessibility, layout, copy or the design system's rules before the person sees it.
 

dot_claude/agents/plan-review-architect.md

@@ -2,6 +2,7 @@
 name: plan-review-architect
 description: Architect on a plan's review panel (ADR-0022, work.plan-review-panel), for large or long-lived repositories. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob, LSP
+model: opus
 ---
 Catches: a plan that puts a concept in the wrong module or tool, couples parts that should stay apart, or contradicts an active decision.
 

dot_claude/agents/plan-review-backend.md

@@ -2,6 +2,7 @@
 name: plan-review-backend
 description: Staff backend engineer on a plan's review panel (ADR-0022, work.plan-review-panel). Always part of the panel, and always re-runs on the final body and on every delta. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob, LSP
+model: opus
 ---
 Catches: a plan whose data flow, failure handling, concurrency or verification would not hold under real use.
 

dot_claude/agents/plan-review-game-ux.md

@@ -2,6 +2,7 @@
 name: plan-review-game-ux
 description: Game developer and UX designer from the video game industry on a plan's review panel (ADR-0022, work.plan-review-panel), for repositories with an interface. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob
+model: opus
 ---
 Catches: a plan whose interaction lacks the feedback, onboarding, flow or discoverability a player would expect.
 

dot_claude/agents/plan-review-language.md

@@ -2,6 +2,7 @@
 name: plan-review-language
 description: Language expert on a plan's review panel (ADR-0022, work.plan-review-panel). Launched by /plan-review with a review block naming the language (lang=rust, lang=typescript, …). Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob, LSP
+model: opus
 ---
 Catches: a plan that fights the language's idioms, type system or toolchain, or claims behaviour no test would catch.
 

dot_claude/agents/plan-review-platform.md

@@ -2,6 +2,7 @@
 name: plan-review-platform
 description: Staff platform engineer on a plan's review panel (ADR-0022, work.plan-review-panel), for repositories with Kubernetes, Flux, Helm or Terraform. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob
+model: opus
 ---
 Catches: a plan that would break deployment, GitOps reconciliation, cluster resources or rollback.
 

dot_claude/agents/plan-review-po.md

@@ -2,6 +2,7 @@
 name: plan-review-po
 description: Product owner on a plan's review panel (ADR-0022, work.plan-review-panel), for large or long-lived repositories. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob
+model: opus
 ---
 Catches: a plan that solves the wrong problem, misses the person's goal, or has no outcome anyone can observe.
 

dot_claude/agents/plan-review-react.md

@@ -2,6 +2,7 @@
 name: plan-review-react
 description: React staff engineer on a plan's review panel (ADR-0022, work.plan-review-panel), for repositories with an interface. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob, mcp__duro-ds__duro_ds_lookup
+model: opus
 ---
 Catches: a plan whose React state, effects, rendering or component boundaries would misbehave.
 

dot_claude/agents/plan-review-tui.md

@@ -2,6 +2,7 @@
 name: plan-review-tui
 description: TUI expert on a plan's review panel (ADR-0022, work.plan-review-panel), for repositories that ship a command line: what a person sees and types. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob
+model: opus
 ---
 Catches: a plan whose command-line output, prompts or terminal behaviour would confuse the person reading it.
 

dot_claude/agents/plan-review-ui-design.md

@@ -2,6 +2,7 @@
 name: plan-review-ui-design
 description: UI designer on a plan's review panel (ADR-0022, work.plan-review-panel), for repositories with an interface. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob, mcp__duro-ds__duro_ds_lookup
+model: opus
 ---
 Catches: a plan whose hierarchy, spacing, states or consistency departs from the design system.
 

dot_claude/agents/plan-review-unix.md

@@ -2,6 +2,7 @@
 name: plan-review-unix
 description: Unix expert on a plan's review panel (ADR-0022, work.plan-review-panel), for repositories that ship a command line. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob
+model: opus
 ---
 Catches: a plan whose command line breaks Unix conventions: exit codes, streams, signals, flags or pipes.
 

dot_claude/agents/plan-review-ux-research.md

@@ -2,6 +2,7 @@
 name: plan-review-ux-research
 description: UX researcher on a plan's review panel (ADR-0022, work.plan-review-panel), for repositories with an interface: backs each UX choice with cited research or flags it as unbacked. Reviews a plan before it is presented; never edits anything.
 tools: Read, Grep, Glob, WebSearch, WebFetch
+model: opus
 ---
 Catches: a plan that makes a UX choice no cited research backs.
 

dot_claude/settings.json

@@ -1,4 +1,5 @@
 {
+  "advisorModel": "opus",
   "env": {
     "RUST_BACKTRACE": "1"
   },