refactor(providers): dedupe identical opencode-zen/opencode-go model entries (#11051)

⭐5 — Dedupe dos 3 entries byte-idênticos (kimi-k2.7-code, qwen3.5-plus, qwen3.6-plus) entre opencode-zen e opencode-go via OPENCODE_ZEN_GO_SHARED_MODELS (padrão GLM_SHARED_MODELS), frozen e testado por deep-equal. Pure move, sem mudança de comportamento; check:provider-consistency OK (267 entries, 348 providers). TDD 3/3. Follow-up de #11049/#11048. Base-red #9985 inherited.

open-sse/config/opencodeZenGoSharedModels.ts

@@ -0,0 +1,16 @@
+/**
+ * Models declared identically in both the `opencode-zen` and `opencode-go` provider
+ * registries (same upstream family, opencode.ai/zen/*). Mirrors the GLM_SHARED_MODELS
+ * pattern in glmProvider.ts: one array, spread into each sibling RegistryEntry, so a
+ * metadata fix (targetFormat, supportsReasoning, ...) only has to land in one file
+ * instead of drifting out of sync across registries.
+ *
+ * Only entries that are byte-identical across both registries belong here — a model
+ * with tier-specific flags (e.g. go's effort variants, or a flag only one tier needs)
+ * stays local to that registry's own `models` array.
+ */
+export const OPENCODE_ZEN_GO_SHARED_MODELS = Object.freeze([
+  { id: "kimi-k2.7-code", name: "Kimi K2.7 Code" },
+  { id: "qwen3.5-plus", name: "Qwen3.5 Plus", targetFormat: "claude", supportsVision: false },
+  { id: "qwen3.6-plus", name: "Qwen3.6 Plus", targetFormat: "claude", supportsVision: false },
+]);

open-sse/config/providers/registry/opencode/go/index.ts

@@ -1,4 +1,5 @@
 import type { RegistryEntry } from "../../../shared.ts";
+import { OPENCODE_ZEN_GO_SHARED_MODELS } from "../../../shared.ts";
 
 export const opencode_goProvider: RegistryEntry = {
   id: "opencode-go",
@@ -13,6 +14,8 @@ export const opencode_goProvider: RegistryEntry = {
   authPrefix: "Bearer",
   defaultContextLength: 200000,
   models: [
+    ...OPENCODE_ZEN_GO_SHARED_MODELS,
+
     // Port from decolua/9router 8efacc11: align with official Go endpoints —
     // glm-5.2 is now advertised and Kimi chat traffic must route through
     // `kimi-k2.7-code` (the live API rejects the plain `kimi-k2.7` alias for
@@ -25,7 +28,7 @@ export const opencode_goProvider: RegistryEntry = {
     { id: "glm-5.2-max", name: "GLM-5.2 (max effort)", supportsReasoning: true },
     { id: "glm-5.1", name: "GLM-5.1" },
     { id: "glm-5", name: "GLM-5" },
-    { id: "kimi-k2.7-code", name: "Kimi K2.7 Code" },
+    // kimi-k2.7-code declared identically on opencode-zen — see OPENCODE_ZEN_GO_SHARED_MODELS.
     { id: "kimi-k2.6", name: "Kimi K2.6" },
     { id: "kimi-k2.5", name: "Kimi K2.5" },
     // #8353: Kimi K3 base + max-effort alias from the OpenCode Go registry.
@@ -89,7 +92,8 @@ export const opencode_goProvider: RegistryEntry = {
       supportsVision: false,
       supportsReasoning: true,
     },
-    { id: "qwen3.6-plus", name: "Qwen3.6 Plus", targetFormat: "claude", supportsVision: false },
+    // qwen3.6-plus / qwen3.5-plus base ids declared identically on opencode-zen — see
+    // OPENCODE_ZEN_GO_SHARED_MODELS.
     {
       id: "qwen3.6-plus-high",
       name: "Qwen3.6 Plus (high effort)",
@@ -104,7 +108,6 @@ export const opencode_goProvider: RegistryEntry = {
       supportsVision: false,
       supportsReasoning: true,
     },
-    { id: "qwen3.5-plus", name: "Qwen3.5 Plus", targetFormat: "claude", supportsVision: false },
     // #8353: hy3 is the Go-tier base id (distinct from hy3-preview / hy3-free).
     { id: "hy3", name: "Hunyuan3", contextLength: 256000, supportsReasoning: true },
     {

open-sse/config/providers/registry/opencode/zen/index.ts

@@ -1,4 +1,5 @@
 import type { RegistryEntry } from "../../../shared.ts";
+import { OPENCODE_ZEN_GO_SHARED_MODELS } from "../../../shared.ts";
 
 export const opencode_zenProvider: RegistryEntry = {
   id: "opencode-zen",
@@ -15,6 +16,8 @@ export const opencode_zenProvider: RegistryEntry = {
   // from the live API response so new models work without a code deploy.
   passthroughModels: true,
   models: [
+    ...OPENCODE_ZEN_GO_SHARED_MODELS,
+
     // ── Chat / Coding ──────────────────────────────────────────
     // #2900: big-pickle's upstream runs DeepSeek thinking mode — declare the
     // interleaved reasoning_content contract so follow-up/tool-use turns replay
@@ -84,7 +87,7 @@ export const opencode_zenProvider: RegistryEntry = {
 
     // ── Kimi / Moonshot ────────────────────────────────────────
     { id: "kimi-k3", name: "Kimi K3" },
-    { id: "kimi-k2.7-code", name: "Kimi K2.7 Code" },
+    // kimi-k2.7-code declared identically on opencode-go — see OPENCODE_ZEN_GO_SHARED_MODELS.
 
     // ── Qwen ───────────────────────────────────────────────────
     // Issue #2292: Qwen models return Claude-format SSE bodies even
@@ -92,8 +95,8 @@ export const opencode_zenProvider: RegistryEntry = {
     // through /messages and the Claude translator.
     // Issue #2822: These models are text-only — supportsVision: false
     // ensures combo routing skips them on image-bearing requests.
-    { id: "qwen3.5-plus", name: "Qwen3.5 Plus", targetFormat: "claude", supportsVision: false },
-    { id: "qwen3.6-plus", name: "Qwen3.6 Plus", targetFormat: "claude", supportsVision: false },
+    // qwen3.5-plus / qwen3.6-plus declared identically on opencode-go — see
+    // OPENCODE_ZEN_GO_SHARED_MODELS.
 
     // ── Free Tier ──────────────────────────────────────────────
     // #6998 (2026-07-14): upstream free tier rotated — minimax-m2.5-free,

open-sse/config/providers/shared.ts

@@ -25,6 +25,7 @@ import {
   GLMT_TIMEOUT_MS,
   GLM_SHARED_MODELS,
 } from "../glmProvider.ts";
+import { OPENCODE_ZEN_GO_SHARED_MODELS } from "../opencodeZenGoSharedModels.ts";
 import { MARITALK_DEFAULT_BASE_URL } from "../maritalk.ts";
 import {
   CURSOR_REGISTRY_VERSION,
@@ -719,6 +720,7 @@ export {
   GLM_TIMEOUT_MS,
   GLMT_TIMEOUT_MS,
   GLM_SHARED_MODELS,
+  OPENCODE_ZEN_GO_SHARED_MODELS,
   MARITALK_DEFAULT_BASE_URL,
   CURSOR_REGISTRY_VERSION,
   getAntigravityProviderHeaders,

tests/unit/opencode-zen-go-shared-models.test.ts

@@ -0,0 +1,26 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { OPENCODE_ZEN_GO_SHARED_MODELS } from "../../open-sse/config/opencodeZenGoSharedModels.ts";
+import { opencode_zenProvider } from "../../open-sse/config/providers/registry/opencode/zen/index.ts";
+import { opencode_goProvider } from "../../open-sse/config/providers/registry/opencode/go/index.ts";
+
+test("every OPENCODE_ZEN_GO_SHARED_MODELS entry is present, unmodified, exactly once in opencode-zen", () => {
+  for (const shared of OPENCODE_ZEN_GO_SHARED_MODELS) {
+    const matches = opencode_zenProvider.models.filter((m) => m.id === shared.id);
+    assert.equal(matches.length, 1, `${shared.id} must appear exactly once in opencode-zen`);
+    assert.deepEqual(matches[0], shared, `${shared.id} must match the shared definition exactly`);
+  }
+});
+
+test("every OPENCODE_ZEN_GO_SHARED_MODELS entry is present, unmodified, exactly once in opencode-go", () => {
+  for (const shared of OPENCODE_ZEN_GO_SHARED_MODELS) {
+    const matches = opencode_goProvider.models.filter((m) => m.id === shared.id);
+    assert.equal(matches.length, 1, `${shared.id} must appear exactly once in opencode-go`);
+    assert.deepEqual(matches[0], shared, `${shared.id} must match the shared definition exactly`);
+  }
+});
+
+test("OPENCODE_ZEN_GO_SHARED_MODELS is frozen (no accidental cross-registry mutation)", () => {
+  assert.ok(Object.isFrozen(OPENCODE_ZEN_GO_SHARED_MODELS));
+});