Auto-discover OpenCode Zen and Go models, add catalog search and pagination

Add model fetchers for OpenCode Zen (https://opencode.ai/zen/v1/models) and
Go (https://opencode.ai/zen/go/v1/models) APIs. Register opencode-go as a new
provider, load shared credentials from auth.json, add known models with pricing,
and create default agents for both tiers on first boot.

Replace the manual "Add Model" form with a search bar that filters by model
name/ID and paginate the catalog at 25 models per page.

apps/harness/src/components/harness-dashboard.tsx

@@ -730,6 +730,7 @@ const PROVIDER_BADGE: Record<string, { short: string; bg: string; color: string;
   openrouter: { short: "OR",  bg: tokens.color.infoDim,   color: tokens.color.info,   border: tokens.color.infoDim   },
   google:         { short: "GG",  bg: tokens.color.infoDim,   color: tokens.color.info,   border: tokens.color.infoDim   },
   "opencode-zen": { short: "OZ",  bg: tokens.color.purpleDim, color: tokens.color.purple, border: tokens.color.purpleDim },
+  "opencode-go":  { short: "OG",  bg: tokens.color.passDim,   color: tokens.color.pass,   border: tokens.color.passDim   },
 };
 
 function ProviderBadge({ provider }: { provider: string }) {
@@ -1153,13 +1154,8 @@ function ModelsTab({ mobile }: { mobile: boolean }) {
   const [runtimes, setRuntimes] = useState<AgentRuntimeDisplay[]>([]);
   const [view, setView] = useState<"agents" | "catalog" | "usage">("agents");
   const [providerFilter, setProviderFilter] = useState("ALL");
-  const [addingModel, setAddingModel] = useState(false);
+  const [searchQuery, setSearchQuery] = useState("");
-  const [newModelId, setNewModelId] = useState("");
+  const [catalogPage, setCatalogPage] = useState(1);
-  const [newModelName, setNewModelName] = useState("");
-  const [newModelProvider, setNewModelProvider] = useState("anthropic");
-  const [newModelCtx, setNewModelCtx] = useState("");
-  const [newModelCostIn, setNewModelCostIn] = useState("");
-  const [newModelCostOut, setNewModelCostOut] = useState("");
   // Agent creation state
   const [addingAgent, setAddingAgent] = useState(false);
   const [newAgentName, setNewAgentName] = useState("");
@@ -1196,27 +1192,19 @@ function ModelsTab({ mobile }: { mobile: boolean }) {
     loadModels();
   };
 
-  const addModel = async () => {
-    if (!newModelId.trim() || !newModelProvider) return;
-    await fetch("/api/models/curated", {
-      method: "POST",
-      headers: { "Content-Type": "application/json" },
-      body: JSON.stringify({
-        id: newModelId.trim(),
-        name: newModelName.trim() || newModelId.trim(),
-        provider: newModelProvider,
-        contextWindow: newModelCtx ? parseInt(newModelCtx) : undefined,
-        costPer1kInput: newModelCostIn ? parseFloat(newModelCostIn) : undefined,
-        costPer1kOutput: newModelCostOut ? parseFloat(newModelCostOut) : undefined,
-      }),
-    });
-    setNewModelId(""); setNewModelName(""); setNewModelCtx("");
-    setNewModelCostIn(""); setNewModelCostOut(""); setAddingModel(false);
-    loadModels();
-  };
-
   const providers = ["ALL", ...Array.from(new Set(models.map(m => m.provider)))];
-  const filtered = providerFilter === "ALL" ? models : models.filter(m => m.provider === providerFilter);
+  const CATALOG_PAGE_SIZE = 25;
+  const filtered = models.filter(m => {
+    if (providerFilter !== "ALL" && m.provider !== providerFilter) return false;
+    if (searchQuery) {
+      const q = searchQuery.toLowerCase();
+      return m.id.toLowerCase().includes(q) || m.name.toLowerCase().includes(q);
+    }
+    return true;
+  });
+  const totalPages = Math.max(1, Math.ceil(filtered.length / CATALOG_PAGE_SIZE));
+  const clampedPage = Math.min(catalogPage, totalPages);
+  const paginatedModels = filtered.slice((clampedPage - 1) * CATALOG_PAGE_SIZE, clampedPage * CATALOG_PAGE_SIZE);
 
   // Aggregate usage by provider
   const providerTotals = usage.summary.reduce((acc, s) => {
@@ -1263,12 +1251,6 @@ function ModelsTab({ mobile }: { mobile: boolean }) {
               {addingAgent ? "CANCEL" : "+ NEW AGENT"}
             </Btn>
           )}
-          {view === "catalog" && (
-            <Btn variant="primary" onClick={() => setAddingModel(!addingModel)}
-              style={{ fontSize: tokens.size.xs, minHeight: 32 }}>
-              {addingModel ? "CANCEL" : "+ ADD MODEL"}
-            </Btn>
-          )}
         </div>
 
         {/* ─── AGENTS VIEW ─── */}
@@ -1321,7 +1303,7 @@ function ModelsTab({ mobile }: { mobile: boolean }) {
                     <div style={{ display: "flex", flexDirection: "column", gap: tokens.space[1] }}>
                       <Label color={tokens.color.text3}>Provider</Label>
                       <div style={{ display: "flex", gap: tokens.space[1] }}>
-                        {["anthropic", "openai", "openrouter", "google", "opencode-zen"].map(p => (
+                        {["anthropic", "openai", "openrouter", "google", "opencode-zen", "opencode-go"].map(p => (
                           <button key={p} onClick={() => setNewAgentProvider(p)}
                             style={{
                               background: newAgentProvider === p ? tokens.color.bg3 : "transparent",
@@ -1425,79 +1407,36 @@ function ModelsTab({ mobile }: { mobile: boolean }) {
         {/* ─── CATALOG VIEW ─── */}
         {view === "catalog" && (
           <>
-            {/* Add model form */}
+            {/* Search + provider filter */}
-            {addingModel && (
+            <div style={{ display: "flex", flexDirection: "column", gap: tokens.space[2] }}>
-              <Panel style={{ padding: tokens.space[3] }}>
+              <Input
-                <div style={{ display: "flex", flexDirection: "column", gap: tokens.space[2] }}>
+                value={searchQuery}
-                  <Label color={tokens.color.accent}>ADD MODEL TO CATALOG</Label>
+                onChange={e => { setSearchQuery(e.target.value); setCatalogPage(1); }}
-                  <div style={{ display: "flex", flexDirection: mobile ? "column" : "row", gap: tokens.space[2] }}>
+                placeholder="Search models by name or ID..."
-                    <div style={{ flex: 2, display: "flex", flexDirection: "column", gap: tokens.space[1] }}>
+                style={{ maxWidth: 400 }}
-                      <Label color={tokens.color.text3}>Model ID</Label>
+              />
-                      <Input value={newModelId} onChange={e => setNewModelId(e.target.value)} placeholder="claude-sonnet-4-20250514" />
+              <div style={{ display: "flex", gap: tokens.space[1], flexWrap: "wrap", alignItems: "center" }}>
-                    </div>
+                {providers.map(p => (
-                    <div style={{ flex: 1, display: "flex", flexDirection: "column", gap: tokens.space[1] }}>
+                  <button key={p} onClick={() => { setProviderFilter(p); setCatalogPage(1); }}
-                      <Label color={tokens.color.text3}>Display Name</Label>
+                    style={{
-                      <Input value={newModelName} onChange={e => setNewModelName(e.target.value)} placeholder="Claude Sonnet 4" />
+                      background: providerFilter === p ? tokens.color.bg3 : "transparent",
-                    </div>
+                      border: `1px solid ${providerFilter === p ? tokens.color.border1 : tokens.color.border0}`,
-                  </div>
+                      color: providerFilter === p ? tokens.color.text0 : tokens.color.text2,
-                  <div style={{ display: "flex", flexDirection: mobile ? "column" : "row", gap: tokens.space[2] }}>
+                      fontFamily: tokens.font.mono, fontSize: tokens.size.xs, letterSpacing: tokens.tracking.wide,
-                    <div style={{ display: "flex", flexDirection: "column", gap: tokens.space[1] }}>
+                      padding: `2px ${tokens.space[2]}px`, cursor: "pointer", borderRadius: 0,
-                      <Label color={tokens.color.text3}>Provider</Label>
+                    }}>
-                      <div style={{ display: "flex", gap: tokens.space[1], flexWrap: "wrap" }}>
+                    {p.toUpperCase()}
-                        {["anthropic", "openai", "openrouter", "google", "opencode-zen"].map(p => (
+                  </button>
-                          <button key={p} onClick={() => setNewModelProvider(p)}
+                ))}
-                            style={{
+                <Mono size={tokens.size.xs} color={tokens.color.text3} style={{ marginLeft: tokens.space[2] }}>
-                              background: newModelProvider === p ? tokens.color.bg3 : "transparent",
+                  {filtered.length} model{filtered.length !== 1 ? "s" : ""}
-                              border: `1px solid ${newModelProvider === p ? tokens.color.border1 : tokens.color.border0}`,
+                </Mono>
-                              color: newModelProvider === p ? tokens.color.text0 : tokens.color.text2,
+              </div>
-                              fontFamily: tokens.font.mono, fontSize: tokens.size.xs,
-                              padding: `2px ${tokens.space[2]}px`, cursor: "pointer", borderRadius: 0,
-                            }}>
-                            {p.toUpperCase()}
-                          </button>
-                        ))}
-                      </div>
-                    </div>
-                    <div style={{ flex: 1, display: "flex", flexDirection: "column", gap: tokens.space[1] }}>
-                      <Label color={tokens.color.text3}>Context Window</Label>
-                      <Input value={newModelCtx} onChange={e => setNewModelCtx(e.target.value)} placeholder="200000" />
-                    </div>
-                    <div style={{ flex: 1, display: "flex", flexDirection: "column", gap: tokens.space[1] }}>
-                      <Label color={tokens.color.text3}>$/1k Input</Label>
-                      <Input value={newModelCostIn} onChange={e => setNewModelCostIn(e.target.value)} placeholder="0.003" />
-                    </div>
-                    <div style={{ flex: 1, display: "flex", flexDirection: "column", gap: tokens.space[1] }}>
-                      <Label color={tokens.color.text3}>$/1k Output</Label>
-                      <Input value={newModelCostOut} onChange={e => setNewModelCostOut(e.target.value)} placeholder="0.015" />
-                    </div>
-                  </div>
-                  <Btn variant="primary" onClick={addModel} disabled={!newModelId.trim()}
-                    style={{ alignSelf: "flex-start" }}>
-                    ADD TO CATALOG
-                  </Btn>
-                </div>
-              </Panel>
-            )}
-
-            {/* Provider filter */}
-            <div style={{ display: "flex", gap: tokens.space[1], flexWrap: "wrap" }}>
-              {providers.map(p => (
-                <button key={p} onClick={() => setProviderFilter(p)}
-                  style={{
-                    background: providerFilter === p ? tokens.color.bg3 : "transparent",
-                    border: `1px solid ${providerFilter === p ? tokens.color.border1 : tokens.color.border0}`,
-                    color: providerFilter === p ? tokens.color.text0 : tokens.color.text2,
-                    fontFamily: tokens.font.mono, fontSize: tokens.size.xs, letterSpacing: tokens.tracking.wide,
-                    padding: `2px ${tokens.space[2]}px`, cursor: "pointer", borderRadius: 0,
-                  }}>
-                  {p.toUpperCase()}
-                </button>
-              ))}
             </div>
 
             {/* Model list */}
             <div style={{ display: "flex", flexDirection: "column", gap: tokens.space[2] }}>
-              {filtered.map(m => (
+              {paginatedModels.map(m => (
                 <Panel key={m.id} style={{
                   borderLeft: `3px solid ${m.enabled ? tokens.color.pass : tokens.color.border0}`,
                   opacity: m.enabled ? 1 : 0.6,
@@ -1551,6 +1490,25 @@ function ModelsTab({ mobile }: { mobile: boolean }) {
               ))}
             </div>
 
+            {/* Pagination */}
+            {totalPages > 1 && (
+              <div style={{ display: "flex", alignItems: "center", justifyContent: "center", gap: tokens.space[3] }}>
+                <Btn variant="default" onClick={() => setCatalogPage(p => Math.max(1, p - 1))}
+                  disabled={clampedPage <= 1}
+                  style={{ fontSize: tokens.size.xs, minHeight: 32 }}>
+                  PREV
+                </Btn>
+                <Mono size={tokens.size.sm} color={tokens.color.text2}>
+                  {clampedPage} / {totalPages}
+                </Mono>
+                <Btn variant="default" onClick={() => setCatalogPage(p => Math.min(totalPages, p + 1))}
+                  disabled={clampedPage >= totalPages}
+                  style={{ fontSize: tokens.size.xs, minHeight: 32 }}>
+                  NEXT
+                </Btn>
+              </div>
+            )}
+
           </>
         )}
 

apps/harness/src/lib/agents.ts

@@ -39,8 +39,8 @@ export const AGENT_RUNTIMES: Record<AgentRuntime, AgentRuntimeInfo> = {
   "opencode": {
     id: "opencode",
     name: "OpenCode",
-    description: "Open-source multi-provider coding agent. Supports Anthropic, OpenAI, Google, OpenRouter.",
+    description: "Open-source multi-provider coding agent. Supports Anthropic, OpenAI, Google, OpenRouter, OpenCode Zen/Go.",
-    defaultProviders: ["anthropic", "openai", "google", "openrouter", "opencode-zen"],
+    defaultProviders: ["anthropic", "openai", "google", "openrouter", "opencode-zen", "opencode-go"],
     cliCommand: "opencode",
     headlessFlag: "run",
     modelFlag: "--model",

apps/harness/src/lib/boot.ts

@@ -7,17 +7,33 @@ import { upsertCuratedModel, getCuratedModels } from "./model-store";
 import { upsertAgentConfig, getAllAgentConfigs, type AgentRuntime } from "./agents";
 import { fetchAllModels } from "./model-providers";
 
-// Well-known models with pricing
+// Well-known models with pricing (per 1k tokens)
 const KNOWN_MODELS: Record<string, { name: string; provider: string; contextWindow: number; costPer1kInput: number; costPer1kOutput: number }> = {
-  "claude-opus-4-20250514":      { name: "Claude Opus 4",      provider: "anthropic",  contextWindow: 200000,  costPer1kInput: 0.015,   costPer1kOutput: 0.075  },
+  // Anthropic (direct)
-  "claude-sonnet-4-20250514":    { name: "Claude Sonnet 4",    provider: "anthropic",  contextWindow: 200000,  costPer1kInput: 0.003,   costPer1kOutput: 0.015  },
+  "claude-opus-4-20250514":      { name: "Claude Opus 4",      provider: "anthropic",     contextWindow: 200000,  costPer1kInput: 0.015,   costPer1kOutput: 0.075  },
-  "claude-haiku-4-20250514":     { name: "Claude Haiku 4",     provider: "anthropic",  contextWindow: 200000,  costPer1kInput: 0.0008,  costPer1kOutput: 0.004  },
+  "claude-sonnet-4-20250514":    { name: "Claude Sonnet 4",    provider: "anthropic",     contextWindow: 200000,  costPer1kInput: 0.003,   costPer1kOutput: 0.015  },
-  "gpt-4o":                      { name: "GPT-4o",             provider: "openai",     contextWindow: 128000,  costPer1kInput: 0.0025,  costPer1kOutput: 0.01   },
+  "claude-haiku-4-20250514":     { name: "Claude Haiku 4",     provider: "anthropic",     contextWindow: 200000,  costPer1kInput: 0.0008,  costPer1kOutput: 0.004  },
-  "gpt-4o-mini":                 { name: "GPT-4o Mini",        provider: "openai",     contextWindow: 128000,  costPer1kInput: 0.00015, costPer1kOutput: 0.0006 },
+  // OpenAI (direct)
-  "o3":                          { name: "o3",                 provider: "openai",     contextWindow: 200000,  costPer1kInput: 0.01,    costPer1kOutput: 0.04   },
+  "gpt-4o":                      { name: "GPT-4o",             provider: "openai",        contextWindow: 128000,  costPer1kInput: 0.0025,  costPer1kOutput: 0.01   },
-  "o4-mini":                     { name: "o4 Mini",            provider: "openai",     contextWindow: 200000,  costPer1kInput: 0.0011,  costPer1kOutput: 0.0044 },
+  "gpt-4o-mini":                 { name: "GPT-4o Mini",        provider: "openai",        contextWindow: 128000,  costPer1kInput: 0.00015, costPer1kOutput: 0.0006 },
-  "gemini-2.5-pro":              { name: "Gemini 2.5 Pro",     provider: "google",     contextWindow: 1048576, costPer1kInput: 0.00125, costPer1kOutput: 0.01   },
+  "o3":                          { name: "o3",                 provider: "openai",        contextWindow: 200000,  costPer1kInput: 0.01,    costPer1kOutput: 0.04   },
-  "gemini-2.5-flash":            { name: "Gemini 2.5 Flash",   provider: "google",     contextWindow: 1048576, costPer1kInput: 0.00015, costPer1kOutput: 0.0006 },
+  "o4-mini":                     { name: "o4 Mini",            provider: "openai",        contextWindow: 200000,  costPer1kInput: 0.0011,  costPer1kOutput: 0.0044 },
+  // Google (direct)
+  "gemini-2.5-pro":              { name: "Gemini 2.5 Pro",     provider: "google",        contextWindow: 1048576, costPer1kInput: 0.00125, costPer1kOutput: 0.01   },
+  "gemini-2.5-flash":            { name: "Gemini 2.5 Flash",   provider: "google",        contextWindow: 1048576, costPer1kInput: 0.00015, costPer1kOutput: 0.0006 },
+  // OpenCode Zen (pricing per 1M from docs, converted to per 1k)
+  "claude-opus-4.6":             { name: "Claude Opus 4.6",    provider: "opencode-zen",  contextWindow: 200000,  costPer1kInput: 0.005,   costPer1kOutput: 0.025  },
+  "claude-sonnet-4.6":           { name: "Claude Sonnet 4.6",  provider: "opencode-zen",  contextWindow: 200000,  costPer1kInput: 0.003,   costPer1kOutput: 0.015  },
+  "claude-haiku-4.5":            { name: "Claude Haiku 4.5",   provider: "opencode-zen",  contextWindow: 200000,  costPer1kInput: 0.0008,  costPer1kOutput: 0.004  },
+  "gpt-5.4":                     { name: "GPT-5.4",            provider: "opencode-zen",  contextWindow: 200000,  costPer1kInput: 0.0025,  costPer1kOutput: 0.015  },
+  "gpt-5.3-codex":               { name: "GPT-5.3 Codex",     provider: "opencode-zen",  contextWindow: 200000,  costPer1kInput: 0.002,   costPer1kOutput: 0.008  },
+  "gemini-3.1-pro":              { name: "Gemini 3.1 Pro",     provider: "opencode-zen",  contextWindow: 1048576, costPer1kInput: 0.00125, costPer1kOutput: 0.005  },
+  "gemini-3-flash":              { name: "Gemini 3 Flash",     provider: "opencode-zen",  contextWindow: 1048576, costPer1kInput: 0.0005,  costPer1kOutput: 0.003  },
+  // OpenCode Go (fixed subscription, no per-token pricing)
+  "glm-5":                       { name: "GLM-5",              provider: "opencode-go",   contextWindow: 128000,  costPer1kInput: 0,       costPer1kOutput: 0      },
+  "kimi-k2.5":                   { name: "Kimi K2.5",          provider: "opencode-go",   contextWindow: 128000,  costPer1kInput: 0,       costPer1kOutput: 0      },
+  "minimax-m2.7":                { name: "MiniMax M2.7",       provider: "opencode-go",   contextWindow: 128000,  costPer1kInput: 0,       costPer1kOutput: 0      },
+  "minimax-m2.5":                { name: "MiniMax M2.5",       provider: "opencode-go",   contextWindow: 128000,  costPer1kInput: 0,       costPer1kOutput: 0      },
 };
 
 // Default agents to create per provider when credentials are available.
@@ -35,6 +51,12 @@ const DEFAULT_AGENTS: Record<string, { runtime: AgentRuntime; models: string[] }
   openrouter: [
     { runtime: "opencode", models: ["claude-sonnet-4-20250514"] },
   ],
+  "opencode-zen": [
+    { runtime: "opencode", models: ["claude-sonnet-4.6", "gpt-5.3-codex"] },
+  ],
+  "opencode-go": [
+    { runtime: "opencode", models: ["kimi-k2.5", "glm-5"] },
+  ],
 };
 
 const RUNTIME_LABELS: Record<AgentRuntime, string> = {
@@ -55,6 +77,7 @@ async function loadCredentialsFromEnv() {
     ["GOOGLE_API_KEY",       "google",       "Google (env)"],
     ["OPENROUTER_API_KEY",   "openrouter",   "OpenRouter (env)"],
     ["OPENCODE_ZEN_API_KEY", "opencode-zen", "OpenCode Zen (env)"],
+    ["OPENCODE_GO_API_KEY",  "opencode-go",  "OpenCode Go (env)"],
     ["GITHUB_TOKEN",         "github",       "GitHub (env)"],
     ["GH_TOKEN",             "github",       "GitHub (env)"],
     ["GITLAB_TOKEN",         "gitlab",       "GitLab (env)"],
@@ -100,27 +123,29 @@ async function loadOpenCodeCredentials() {
 
   try {
     const raw = JSON.parse(readFileSync(authPath, "utf-8"));
-    const providerMap: Record<string, Provider> = {
+    const providerMap: Record<string, Provider[]> = {
-      anthropic: "anthropic",
+      anthropic: ["anthropic"],
-      openai: "openai",
+      openai: ["openai"],
-      google: "google",
+      google: ["google"],
-      openrouter: "openrouter",
+      openrouter: ["openrouter"],
-      opencode: "opencode-zen",
+      opencode: ["opencode-zen", "opencode-go"],  // Zen and Go share the same key
     };
 
     for (const [key, entry] of Object.entries(raw)) {
-      const provider = providerMap[key];
+      const providers = providerMap[key];
-      if (!provider || typeof entry !== "object" || !entry) continue;
+      if (!providers || typeof entry !== "object" || !entry) continue;
       const token = (entry as Record<string, unknown>).key;
       if (typeof token !== "string" || !token) continue;
-      const existing = await getRawCredentialsByProvider(provider);
+      for (const provider of providers) {
-      if (existing.length > 0) continue;
+        const existing = await getRawCredentialsByProvider(provider);
-      await upsertCredential({
+        if (existing.length > 0) continue;
-        id: `file-${provider}`,
+        await upsertCredential({
-        provider,
+          id: `file-${provider}`,
-        label: `${key} (mounted)`,
+          provider,
-        token,
+          label: `${key} (mounted)`,
-      });
+          token,
+        });
+      }
     }
   } catch {
     // ignore parse errors

apps/harness/src/lib/credentials.ts

@@ -4,10 +4,10 @@ import { credentials as credentialsTable } from "@homelab/db";
 
 export type Provider =
   | "github" | "gitlab"
-  | "anthropic" | "openai" | "openrouter" | "google" | "opencode-zen";
+  | "anthropic" | "openai" | "openrouter" | "google" | "opencode-zen" | "opencode-go";
 
 export const GIT_PROVIDERS: Provider[] = ["github", "gitlab"];
-export const AI_PROVIDERS: Provider[] = ["anthropic", "openai", "openrouter", "google", "opencode-zen"];
+export const AI_PROVIDERS: Provider[] = ["anthropic", "openai", "openrouter", "google", "opencode-zen", "opencode-go"];
 
 export interface Credential {
   id: string;

apps/harness/src/lib/model-providers.ts

@@ -13,6 +13,8 @@ export async function fetchAllModels(): Promise<ModelInfo[]> {
     fetchOpenAIModels(),
     fetchOpenRouterModels(),
     fetchGoogleModels(),
+    fetchOpenCodeZenModels(),
+    fetchOpenCodeGoModels(),
   ]);
 
   return results.flatMap(r => r.status === "fulfilled" ? r.value : []);
@@ -133,3 +135,67 @@ async function fetchGoogleModels(): Promise<ModelInfo[]> {
 
   return [];
 }
+
+async function fetchOpenCodeZenModels(): Promise<ModelInfo[]> {
+  const creds = await getRawCredentialsByProvider("opencode-zen");
+  if (creds.length === 0) return [];
+
+  for (const cred of creds) {
+    try {
+      const res = await fetch("https://opencode.ai/zen/v1/models", {
+        headers: { Authorization: `Bearer ${cred.token}` },
+      });
+
+      if (!res.ok) continue;
+
+      const data = await res.json();
+      return (data.data || data.models || []).map((m: { id: string; name?: string; context_length?: number }) => ({
+        id: m.id,
+        name: m.name || m.id,
+        provider: "opencode-zen",
+        contextWindow: m.context_length,
+      }));
+    } catch {
+      continue;
+    }
+  }
+
+  return [];
+}
+
+async function fetchOpenCodeGoModels(): Promise<ModelInfo[]> {
+  // OpenCode Go shares the same API key as Zen — try zen creds, then go-specific creds
+  const creds = [
+    ...await getRawCredentialsByProvider("opencode-go"),
+    ...await getRawCredentialsByProvider("opencode-zen"),
+  ];
+  if (creds.length === 0) return [];
+
+  for (const cred of creds) {
+    try {
+      const res = await fetch("https://opencode.ai/zen/go/v1/models", {
+        headers: { Authorization: `Bearer ${cred.token}` },
+      });
+
+      if (!res.ok) continue;
+
+      const data = await res.json();
+      return (data.data || data.models || []).map((m: { id: string; name?: string; context_length?: number }) => ({
+        id: m.id,
+        name: m.name || m.id,
+        provider: "opencode-go",
+        contextWindow: m.context_length,
+      }));
+    } catch {
+      continue;
+    }
+  }
+
+  // Fallback: hardcoded Go models if API unavailable but credentials exist
+  return [
+    { id: "glm-5", name: "GLM-5", provider: "opencode-go" },
+    { id: "kimi-k2.5", name: "Kimi K2.5", provider: "opencode-go" },
+    { id: "minimax-m2.7", name: "MiniMax M2.7", provider: "opencode-go" },
+    { id: "minimax-m2.5", name: "MiniMax M2.5", provider: "opencode-go" },
+  ];
+}