fix: include provider-models cache for Hephaestus availability

src/agents/builtin-agents.ts

@@ -13,7 +13,11 @@ import { createAtlasAgent, atlasPromptMetadata } from "./atlas"
 import { createMomusAgent, momusPromptMetadata } from "./momus"
 import { createHephaestusAgent } from "./hephaestus"
 import type { AvailableCategory } from "./dynamic-agent-prompt-builder"
-import { fetchAvailableModels, readConnectedProvidersCache } from "../shared"
+import {
+  fetchAvailableModels,
+  readConnectedProvidersCache,
+  readProviderModelsCache,
+} from "../shared"
 import { CATEGORY_DESCRIPTIONS } from "../tools/delegate-task/constants"
 import { mergeCategories } from "../shared/merge-categories"
 import { buildAvailableSkills } from "./builtin-agents/available-skills"
@@ -68,14 +72,20 @@ export async function createBuiltinAgents(
   useTaskSystem = false
 ): Promise<Record<string, AgentConfig>> {
   const connectedProviders = readConnectedProvidersCache()
+  const providerModelsConnected = connectedProviders
+    ? (readProviderModelsCache()?.connected ?? [])
+    : []
+  const mergedConnectedProviders = Array.from(
+    new Set([...(connectedProviders ?? []), ...providerModelsConnected])
+  )
   // IMPORTANT: Do NOT call OpenCode client APIs during plugin initialization.
   // This function is called from config handler, and calling client API causes deadlock.
   // See: https://github.com/code-yeongyu/oh-my-opencode/issues/1301
   const availableModels = await fetchAvailableModels(undefined, {
-    connectedProviders: connectedProviders ?? undefined,
+    connectedProviders: mergedConnectedProviders.length > 0 ? mergedConnectedProviders : undefined,
   })
   const isFirstRunNoCache =
-    availableModels.size === 0 && (!connectedProviders || connectedProviders.length === 0)
+    availableModels.size === 0 && mergedConnectedProviders.length === 0
 
   const result: Record<string, AgentConfig> = {}
 

src/agents/utils.test.ts

@@ -428,7 +428,7 @@ describe("createBuiltinAgents with model overrides", () => {
       )
 
       // #then
-      const matches = agents.sisyphus.prompt.match(/Custom agent: researcher/gi) ?? []
+      const matches = (agents.sisyphus?.prompt ?? "").match(/Custom agent: researcher/gi) ?? []
       expect(matches.length).toBe(1)
     } finally {
       fetchSpy.mockRestore()
@@ -525,6 +525,34 @@ describe("createBuiltinAgents without systemDefaultModel", () => {
 })
 
 describe("createBuiltinAgents with requiresProvider gating (hephaestus)", () => {
+  test("hephaestus is created when provider-models cache connected list includes required provider", async () => {
+    // #given
+    const connectedCacheSpy = spyOn(connectedProvidersCache, "readConnectedProvidersCache").mockReturnValue(["anthropic"])
+    const providerModelsSpy = spyOn(connectedProvidersCache, "readProviderModelsCache").mockReturnValue({
+      connected: ["openai"],
+      models: {},
+      updatedAt: new Date().toISOString(),
+    })
+    const fetchSpy = spyOn(shared, "fetchAvailableModels").mockImplementation(async (_, options) => {
+      const providers = options?.connectedProviders ?? []
+      return providers.includes("openai")
+        ? new Set(["openai/gpt-5.3-codex"])
+        : new Set(["anthropic/claude-opus-4-6"])
+    })
+
+    try {
+      // #when
+      const agents = await createBuiltinAgents([], {}, undefined, TEST_DEFAULT_MODEL, undefined, undefined, [], {})
+
+      // #then
+      expect(agents.hephaestus).toBeDefined()
+    } finally {
+      connectedCacheSpy.mockRestore()
+      providerModelsSpy.mockRestore()
+      fetchSpy.mockRestore()
+    }
+  })
+
   test("hephaestus is not created when no required provider is connected", async () => {
     // #given - only anthropic models available, not in hephaestus requiresProvider
     const fetchSpy = spyOn(shared, "fetchAvailableModels").mockResolvedValue(