diff --git a/src/cli/__snapshots__/model-fallback.test.ts.snap b/src/cli/__snapshots__/model-fallback.test.ts.snap
index f3744b2ca..77fd973be 100644
--- a/src/cli/__snapshots__/model-fallback.test.ts.snap
+++ b/src/cli/__snapshots__/model-fallback.test.ts.snap
@@ -10,6 +10,9 @@ exports[`generateModelConfig no providers available returns ULTIMATE_FALLBACK fo
     "atlas": {
       "model": "opencode/gpt-5-nano",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "model": "opencode/gpt-5-nano",
     },
@@ -78,6 +81,9 @@ exports[`generateModelConfig single native provider uses Claude models when only
     "atlas": {
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -153,6 +159,9 @@ exports[`generateModelConfig single native provider uses Claude models with isMa
     "atlas": {
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -230,6 +239,9 @@ exports[`generateModelConfig single native provider uses OpenAI models when only
       "model": "openai/gpt-5.4",
       "variant": "medium",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "model": "openai/gpt-5.4",
       "variant": "medium",
@@ -324,6 +336,9 @@ exports[`generateModelConfig single native provider uses OpenAI models with isMa
       "model": "openai/gpt-5.4",
       "variant": "medium",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "model": "openai/gpt-5.4",
       "variant": "medium",
@@ -417,6 +432,9 @@ exports[`generateModelConfig single native provider uses Gemini models when only
     "atlas": {
       "model": "opencode/gpt-5-nano",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "model": "opencode/gpt-5-nano",
     },
@@ -485,6 +503,9 @@ exports[`generateModelConfig single native provider uses Gemini models with isMa
     "atlas": {
       "model": "opencode/gpt-5-nano",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "model": "opencode/gpt-5-nano",
     },
@@ -575,6 +596,9 @@ exports[`generateModelConfig all native providers uses preferred models from fal
       ],
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -799,6 +823,9 @@ exports[`generateModelConfig all native providers uses preferred models with isM
       ],
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -1005,6 +1032,9 @@ exports[`generateModelConfig fallback providers uses OpenCode Zen models when on
       ],
       "model": "opencode/claude-sonnet-4-6",
     },
+    "council-member": {
+      "model": "opencode/gpt-5-nano",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -1234,6 +1264,9 @@ exports[`generateModelConfig fallback providers uses OpenCode Zen models with is
       ],
       "model": "opencode/claude-sonnet-4-6",
     },
+    "council-member": {
+      "model": "opencode/gpt-5-nano",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -1467,6 +1500,9 @@ exports[`generateModelConfig fallback providers uses GitHub Copilot models when
       ],
       "model": "github-copilot/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -1657,6 +1693,9 @@ exports[`generateModelConfig fallback providers uses GitHub Copilot models with
       ],
       "model": "github-copilot/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -1842,6 +1881,9 @@ exports[`generateModelConfig fallback providers uses ZAI model for librarian whe
     "atlas": {
       "model": "opencode/gpt-5-nano",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "model": "opencode/gpt-5-nano",
     },
@@ -1906,6 +1948,9 @@ exports[`generateModelConfig fallback providers uses ZAI model for librarian wit
     "atlas": {
       "model": "opencode/gpt-5-nano",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "model": "opencode/gpt-5-nano",
     },
@@ -1980,6 +2025,9 @@ exports[`generateModelConfig mixed provider scenarios uses Claude + OpenCode Zen
       ],
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/gpt-5-nano",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -2270,6 +2318,9 @@ exports[`generateModelConfig mixed provider scenarios uses OpenAI + Copilot comb
       ],
       "model": "github-copilot/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -2515,6 +2566,9 @@ exports[`generateModelConfig mixed provider scenarios uses Claude + ZAI combinat
     "atlas": {
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -2620,6 +2674,9 @@ exports[`generateModelConfig mixed provider scenarios uses Gemini + Claude combi
     "atlas": {
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/glm-4.7-free",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -2773,6 +2830,9 @@ exports[`generateModelConfig mixed provider scenarios uses all fallback provider
       ],
       "model": "github-copilot/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/gpt-5-nano",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -3191,6 +3251,9 @@ exports[`generateModelConfig mixed provider scenarios uses all providers togethe
       ],
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/gpt-5-nano",
+    },
     "explore": {
       "fallback_models": [
         {
@@ -3765,6 +3828,9 @@ exports[`generateModelConfig mixed provider scenarios uses all providers with is
       ],
       "model": "anthropic/claude-sonnet-4.6",
     },
+    "council-member": {
+      "model": "opencode/gpt-5-nano",
+    },
     "explore": {
       "fallback_models": [
         {
diff --git a/src/shared/model-requirements.test.ts b/src/shared/model-requirements.test.ts
index 219a5d79d..5f3186827 100644
--- a/src/shared/model-requirements.test.ts
+++ b/src/shared/model-requirements.test.ts
@@ -265,8 +265,8 @@ describe("AGENT_MODEL_REQUIREMENTS", () => {
     expect(hephaestus.requiresModel).toBeUndefined()
   })
 
-  test("all 11 builtin agents have valid fallbackChain arrays", () => {
-    // #given - list of 11 agent names
+  test("all 12 builtin agents have valid fallbackChain arrays", () => {
+    // #given - list of 12 agent names
     const expectedAgents = [
       "sisyphus",
       "hephaestus",
@@ -280,6 +280,7 @@ describe("AGENT_MODEL_REQUIREMENTS", () => {
       "atlas",
       "sisyphus-junior",
       "athena",
+      "council-member",
     ]
 
     // when - checking AGENT_MODEL_REQUIREMENTS