[ecr] use Claude Opus 5.5 for the coordinator, Sonnet 5.5 as the step down

.claude/skills/setup-code-review/ecr-reference.md

@@ -149,7 +149,7 @@ Anthropic subscription/bearer envs (locked to provider `anthropic`): `CLAUDE_COD
 | **OpenCode + OpenAI API key** (default) | `{mode:"api-key", provider:"openai"}` (or omit auth) | `OPENAI_API_KEY` | `openai/gpt-5.5`, `openai/gpt-5.5-pro`, … |
 | **Codex/ChatGPT OAuth** (subscription) | `{providers:{openai:{mode:"oauth", tokenEnv:"CODEX_OAUTH_ACCESS_TOKEN"}}}` | `CODEX_OAUTH_ACCESS_TOKEN` | `openai/…` |
 | **Mixed** (subscription + metered pro key) | `{providers:{ openai:{mode:"oauth",tokenEnv:"CODEX_OAUTH_ACCESS_TOKEN"}, "openai-api":{mode:"api-key",tokenEnv:"OPENAI_API_KEY",upstream:"openai"} }}` | both `CODEX_OAUTH_ACCESS_TOKEN` + `OPENAI_API_KEY` | subscription for `openai/…`; alias `openai-api/gpt-5.5-pro` for pro tier |
-| **Claude Code CLI on Max/Team** | `{providers:{anthropic:{tokenEnv:"CLAUDE_CODE_OAUTH_TOKEN"}}}` (auth optional) | `CLAUDE_CODE_OAUTH_TOKEN` | `anthropic/claude-sonnet-5`, … |
+| **Claude Code CLI on Max/Team** | `{providers:{anthropic:{tokenEnv:"CLAUDE_CODE_OAUTH_TOKEN"}}}` (auth optional) | `CLAUDE_CODE_OAUTH_TOKEN` | `anthropic/claude-sonnet-5-5`, … |
 | **Other OpenCode provider** | omit auth | run `opencode auth login` + `REVIEWER_MODEL=<provider>/<model>` | e.g. `google/gemini-3-pro` |
 
 OAuth `openai` tokenEnv: an opaque value = refresh token (codex plugin mints access);

.expo-agents/code-review/coordinator.md

@@ -1,7 +1,6 @@
 ---
-# The coordinator only consolidates text (no repo tools), so a fast, cheap model
-# fits and keeps this serial step from adding latency. Override as you like.
-model: anthropic/claude-haiku-4-5
+# Keep the final decision on the same model as the specialist passes.
+model: anthropic/claude-opus-5-5
 ---
 
 # Coordinator — consolidation & decision

README.md

@@ -517,7 +517,7 @@ setup, and a developer can override everything locally.
 - **Specialist agents** (correctness/security/consistency) run on
   **`anthropic/claude-opus-5-5`**, the scaffolded default. It finds more than the
   Sonnet tier but is slower and costs about twice as much per token, so
-  `anthropic/claude-sonnet-5` is the step down when a repo needs faster or cheaper
+  `anthropic/claude-sonnet-5-5` is the step down when a repo needs faster or cheaper
   reviews. **Security stays pinned to `anthropic/claude-opus-5-5`** in `security.md`
   frontmatter, so a lower default does not move the highest-stakes agent.
 - **The coordinator** makes the final call (dedupe / re-judge / decide) — worth a

src/config/load.ts

@@ -176,7 +176,7 @@ async function loadConfigDir(
   // doesn't exist — which both scaffolded workflows do — so `??` (which only falls
   // through on null/undefined) silently replaced every configured model with "". Every
   // agent and the coordinator then ran on whatever OpenCode picked by default, so a
-  // config saying `anthropic/claude-sonnet-5` reviewed with something else entirely and
+  // config saying `anthropic/claude-sonnet-5-5` reviewed with something else entirely and
   // nothing anywhere said so. Trim too: a stray newline is the same class of accident.
   // @ref LLP 0006#model-resolution [constrained-by] — never ??; GitHub Actions passes an unset var as empty string, not undefined
   const override = process.env.REVIEWER_MODEL?.trim() || undefined;

src/core/opencode.ts

@@ -606,7 +606,7 @@ export function formatUnknownModels(
   return (
     `The configured model id(s) do not exist on the running OpenCode server:\n${lines.join("\n")}\n` +
     `Fix the model in .expo-code-review/config.jsonc (agents' \`model\`, \`coordinator.model\`) ` +
-    `or REVIEWER_MODEL. Note that a model id must be "provider/model" (e.g. anthropic/claude-sonnet-5), ` +
+    `or REVIEWER_MODEL. Note that a model id must be "provider/model" (e.g. anthropic/claude-sonnet-5-5), ` +
     `and that an out-of-date \`opencode\` can reject an id a newer one accepts — run \`ecr doctor\`.`
   );
 }