fix: canonicalize opencode-go base URL

CHANGELOG.md

@@ -12,6 +12,7 @@ Docs: https://docs.openclaw.ai
 ### Fixes
 
 - Browser/Chrome MCP: reset cached existing-session control sessions when a `navigate_page` call times out, so one stuck navigation no longer poisons the browser profile until a gateway restart. (#69733) Thanks @ayeshakhalid192007-dev.
+- OpenCode Go: canonicalize stale bundled `opencode-go` base URLs from `/go` or `/go/v1` to `/zen/go` or `/zen/go/v1`, so older generated model metadata stops hitting the 404 HTML endpoint. (#69898)
 - Channels/preview streaming: centralize draft-preview finalization so Slack, Discord, Mattermost, and Matrix no longer flush temporary preview messages for media/error finals, and preserve first-reply threading for normal fallback delivery.
 - Discord: keep slash command follow-up chunks ephemeral when the command is configured for ephemeral replies, so long `/status` output no longer leaks fallback model or runtime details into the public channel. (#69869) thanks @gumadeiras.
 - Plugins/discovery: reject package plugin source entries that escape the package directory before explicit runtime entries or inferred built JavaScript peers can be used. (#69868) thanks @gumadeiras.

extensions/opencode-go/index.test.ts

@@ -1,4 +1,5 @@
-import { describe, it } from "vitest";
+import { describe, expect, it } from "vitest";
+import { registerSingleProviderPlugin } from "../../test/helpers/plugins/plugin-registration.js";
 import { expectPassthroughReplayPolicy } from "../../test/helpers/provider-replay-policy.ts";
 import plugin from "./index.js";
 
@@ -19,4 +20,63 @@ describe("opencode-go provider plugin", () => {
       modelId: "qwen3-coder",
     });
   });
+
+  it("canonicalizes stale OpenCode Go base URLs", async () => {
+    const provider = await registerSingleProviderPlugin(plugin);
+
+    expect(
+      provider.normalizeConfig?.({
+        provider: "opencode-go",
+        providerConfig: {
+          api: "openai-completions",
+          baseUrl: "https://opencode.ai/go/v1/",
+          models: [],
+        },
+      } as never),
+    ).toMatchObject({
+      baseUrl: "https://opencode.ai/zen/go/v1",
+    });
+
+    expect(
+      provider.normalizeResolvedModel?.({
+        provider: "opencode-go",
+        model: {
+          provider: "opencode-go",
+          id: "kimi-k2.5",
+          name: "Kimi K2.5",
+          api: "openai-completions",
+          baseUrl: "https://opencode.ai/go/v1",
+          reasoning: true,
+          input: ["text"],
+          cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+          contextWindow: 262_144,
+          maxTokens: 65_536,
+        },
+      } as never),
+    ).toMatchObject({
+      baseUrl: "https://opencode.ai/zen/go/v1",
+    });
+
+    expect(
+      provider.normalizeTransport?.({
+        provider: "opencode-go",
+        api: "openai-completions",
+        baseUrl: "https://opencode.ai/go/v1",
+      } as never),
+    ).toEqual({
+      api: "openai-completions",
+      baseUrl: "https://opencode.ai/zen/go/v1",
+    });
+
+    expect(
+      provider.normalizeTransport?.({
+        provider: "opencode-go",
+        api: "anthropic-messages",
+        baseUrl: "https://opencode.ai/go",
+      } as never),
+    ).toEqual({
+      api: "anthropic-messages",
+      baseUrl: "https://opencode.ai/zen/go",
+    });
+  });
 });

extensions/opencode-go/index.ts

@@ -2,6 +2,7 @@ import { createOpencodeCatalogApiKeyAuthMethod } from "openclaw/plugin-sdk/openc
 import { definePluginEntry } from "openclaw/plugin-sdk/plugin-entry";
 import { PASSTHROUGH_GEMINI_REPLAY_HOOKS } from "openclaw/plugin-sdk/provider-model-shared";
 import { applyOpencodeGoConfig, OPENCODE_GO_DEFAULT_MODEL_REF } from "./api.js";
+import { normalizeOpencodeGoBaseUrl } from "./provider-catalog.js";
 
 const PROVIDER_ID = "opencode-go";
 export default definePluginEntry({
@@ -31,6 +32,33 @@ export default definePluginEntry({
           choiceLabel: "OpenCode Go catalog",
         }),
       ],
+      normalizeConfig: ({ providerConfig }) => {
+        const normalizedBaseUrl = normalizeOpencodeGoBaseUrl({
+          api: providerConfig.api,
+          baseUrl: providerConfig.baseUrl,
+        });
+        return normalizedBaseUrl && normalizedBaseUrl !== providerConfig.baseUrl
+          ? { ...providerConfig, baseUrl: normalizedBaseUrl }
+          : undefined;
+      },
+      normalizeResolvedModel: ({ model }) => {
+        const normalizedBaseUrl = normalizeOpencodeGoBaseUrl({
+          api: model.api,
+          baseUrl: model.baseUrl,
+        });
+        return normalizedBaseUrl && normalizedBaseUrl !== model.baseUrl
+          ? { ...model, baseUrl: normalizedBaseUrl }
+          : undefined;
+      },
+      normalizeTransport: ({ api, baseUrl }) => {
+        const normalizedBaseUrl = normalizeOpencodeGoBaseUrl({ api, baseUrl });
+        return normalizedBaseUrl && normalizedBaseUrl !== baseUrl
+          ? {
+              api,
+              baseUrl: normalizedBaseUrl,
+            }
+          : undefined;
+      },
       ...PASSTHROUGH_GEMINI_REPLAY_HOOKS,
       isModernModelRef: () => true,
     });

extensions/opencode-go/provider-catalog.ts

@@ -0,0 +1,31 @@
+export const OPENCODE_GO_OPENAI_BASE_URL = "https://opencode.ai/zen/go/v1";
+export const OPENCODE_GO_ANTHROPIC_BASE_URL = "https://opencode.ai/zen/go";
+
+function normalizeBaseUrl(baseUrl: string | undefined): string {
+  return (baseUrl ?? "").trim().replace(/\/+$/, "");
+}
+
+export function normalizeOpencodeGoBaseUrl(params: {
+  api?: string | null;
+  baseUrl?: string;
+}): string | undefined {
+  const normalized = normalizeBaseUrl(params.baseUrl);
+  if (!normalized) {
+    return undefined;
+  }
+  if (normalized === OPENCODE_GO_OPENAI_BASE_URL) {
+    return OPENCODE_GO_OPENAI_BASE_URL;
+  }
+  if (normalized === OPENCODE_GO_ANTHROPIC_BASE_URL) {
+    return OPENCODE_GO_ANTHROPIC_BASE_URL;
+  }
+  if (normalized === "https://opencode.ai/go") {
+    return OPENCODE_GO_ANTHROPIC_BASE_URL;
+  }
+  if (normalized === "https://opencode.ai/go/v1") {
+    return params.api === "anthropic-messages"
+      ? OPENCODE_GO_ANTHROPIC_BASE_URL
+      : OPENCODE_GO_OPENAI_BASE_URL;
+  }
+  return undefined;
+}