chore: replace big-pickle model with glm-4.7-free

src/shared/agent-config-integration.test.ts

@@ -46,7 +46,7 @@ describe("Agent Config Integration", () => {
       const config = {
         sisyphus: { model: "anthropic/claude-opus-4-5" },
         oracle: { model: "openai/gpt-5.2" },
-        librarian: { model: "opencode/big-pickle" },
+        librarian: { model: "opencode/glm-4.7-free" },
       }
 
       // #when - migration is applied
@@ -65,7 +65,7 @@ describe("Agent Config Integration", () => {
         Sisyphus: { model: "anthropic/claude-opus-4-5" },
         oracle: { model: "openai/gpt-5.2" },
         "Prometheus (Planner)": { model: "anthropic/claude-opus-4-5" },
-        librarian: { model: "opencode/big-pickle" },
+        librarian: { model: "opencode/glm-4.7-free" },
       }
 
       // #when - migration is applied

src/shared/model-availability.test.ts

@@ -547,13 +547,13 @@ describe("fetchAvailableModels with provider-models cache (whitelist-filtered)",
 	it("should prefer provider-models cache over models.json", async () => {
 		writeProviderModelsCache({
 			models: {
-				opencode: ["big-pickle", "gpt-5-nano"],
+				opencode: ["glm-4.7-free", "gpt-5-nano"],
 				anthropic: ["claude-opus-4-5"]
 			},
 			connected: ["opencode", "anthropic"]
 		})
 		writeModelsCache({
-			opencode: { models: { "big-pickle": {}, "gpt-5-nano": {}, "gpt-5.2": {} } },
+			opencode: { models: { "glm-4.7-free": {}, "gpt-5-nano": {}, "gpt-5.2": {} } },
 			anthropic: { models: { "claude-opus-4-5": {}, "claude-sonnet-4-5": {} } }
 		})
 
@@ -562,7 +562,7 @@ describe("fetchAvailableModels with provider-models cache (whitelist-filtered)",
 		})
 
 		expect(result.size).toBe(3)
-		expect(result.has("opencode/big-pickle")).toBe(true)
+		expect(result.has("opencode/glm-4.7-free")).toBe(true)
 		expect(result.has("opencode/gpt-5-nano")).toBe(true)
 		expect(result.has("anthropic/claude-opus-4-5")).toBe(true)
 		expect(result.has("opencode/gpt-5.2")).toBe(false)
@@ -574,7 +574,7 @@ describe("fetchAvailableModels with provider-models cache (whitelist-filtered)",
 	//#then falls back to models.json (no whitelist filtering)
 	it("should fallback to models.json when provider-models cache not found", async () => {
 		writeModelsCache({
-			opencode: { models: { "big-pickle": {}, "gpt-5-nano": {}, "gpt-5.2": {} } },
+			opencode: { models: { "glm-4.7-free": {}, "gpt-5-nano": {}, "gpt-5.2": {} } },
 		})
 
 		const result = await fetchAvailableModels(undefined, {
@@ -582,7 +582,7 @@ describe("fetchAvailableModels with provider-models cache (whitelist-filtered)",
 		})
 
 		expect(result.size).toBe(3)
-		expect(result.has("opencode/big-pickle")).toBe(true)
+		expect(result.has("opencode/glm-4.7-free")).toBe(true)
 		expect(result.has("opencode/gpt-5-nano")).toBe(true)
 		expect(result.has("opencode/gpt-5.2")).toBe(true)
 	})
@@ -593,7 +593,7 @@ describe("fetchAvailableModels with provider-models cache (whitelist-filtered)",
 	it("should filter by connectedProviders even with provider-models cache", async () => {
 		writeProviderModelsCache({
 			models: {
-				opencode: ["big-pickle"],
+				opencode: ["glm-4.7-free"],
 				anthropic: ["claude-opus-4-5"],
 				google: ["gemini-3-pro"]
 			},
@@ -605,7 +605,7 @@ describe("fetchAvailableModels with provider-models cache (whitelist-filtered)",
 		})
 
 		expect(result.size).toBe(1)
-		expect(result.has("opencode/big-pickle")).toBe(true)
+		expect(result.has("opencode/glm-4.7-free")).toBe(true)
 		expect(result.has("anthropic/claude-opus-4-5")).toBe(false)
 		expect(result.has("google/gemini-3-pro")).toBe(false)
 	})

src/shared/model-requirements.test.ts

@@ -353,7 +353,7 @@ describe("FallbackEntry type", () => {
     // #given - a FallbackEntry without variant
     const entry: FallbackEntry = {
       providers: ["opencode", "anthropic"],
-      model: "big-pickle",
+      model: "glm-4.7-free",
     }
 
     // #when - accessing variant
@@ -383,7 +383,7 @@ describe("ModelRequirement type", () => {
   test("ModelRequirement variant is optional", () => {
     // #given - a ModelRequirement without top-level variant
     const requirement: ModelRequirement = {
-      fallbackChain: [{ providers: ["opencode"], model: "big-pickle" }],
+      fallbackChain: [{ providers: ["opencode"], model: "glm-4.7-free" }],
     }
 
     // #when - accessing variant

src/shared/model-requirements.ts

@@ -28,7 +28,7 @@ export const AGENT_MODEL_REQUIREMENTS: Record<string, ModelRequirement> = {
    librarian: {
      fallbackChain: [
        { providers: ["zai-coding-plan"], model: "glm-4.7" },
-       { providers: ["opencode"], model: "big-pickle" },
+       { providers: ["opencode"], model: "glm-4.7-free" },
        { providers: ["anthropic", "github-copilot", "opencode"], model: "claude-sonnet-4-5" },
      ],
    },