diff --git a/apps/agent-zero/agent-zero.yaml b/apps/agent-zero/agent-zero.yaml
index 967360f..4bc81c8 100644
--- a/apps/agent-zero/agent-zero.yaml
+++ b/apps/agent-zero/agent-zero.yaml
@@ -193,36 +193,14 @@ spec:
               # Link Blue Jay profile from workspace into Agent Zero's expected path
               ln -sfn /a0/work/.bluejay/agents/bluejay /a0/agents/bluejay
               # Write model config BEFORE initialize.sh loads it
-              # The _model_config plugin defaults to OpenRouter; override to local Ollama
+              # The _model_config plugin reads config.json (NOT config.yaml)
+              # Default is OpenRouter; override to local Ollama on edge1
               mkdir -p /a0/usr/plugins/_model_config
-              cat > /a0/usr/plugins/_model_config/config.yaml << 'MODELCFG'
-              allow_chat_override: true
-              chat_model:
-                provider: "ollama"
-                name: "qwen2.5-coder:7b"
-                api_base: "http://10.0.57.17:11434"
-                ctx_length: 32768
-                ctx_history: 0.7
-                vision: false
-                kwargs:
-                  temperature: 0
-                  num_ctx: 32768
-              utility_model:
-                provider: "ollama"
-                name: "qwen2.5-coder:7b"
-                api_base: "http://10.0.57.17:11434"
-                ctx_length: 8192
-                ctx_input: 0.7
-                kwargs:
-                  num_ctx: 8192
-              embedding_model:
-                provider: "ollama"
-                name: "nomic-embed-text"
-                api_base: "http://10.0.57.17:11434"
-                kwargs: {}
+              cat > /a0/usr/plugins/_model_config/config.json << 'MODELCFG'
+              {"allow_chat_override":true,"chat_model":{"provider":"ollama","name":"qwen2.5-coder:7b","api_base":"http://10.0.57.17:11434","ctx_length":32768,"ctx_history":0.7,"vision":false,"kwargs":{"temperature":0,"num_ctx":32768}},"utility_model":{"provider":"ollama","name":"qwen2.5-coder:7b","api_base":"http://10.0.57.17:11434","ctx_length":8192,"ctx_input":0.7,"kwargs":{"num_ctx":8192}},"embedding_model":{"provider":"ollama","name":"nomic-embed-text","api_base":"http://10.0.57.17:11434","kwargs":{}}}
               MODELCFG
-              # Strip leading whitespace from heredoc (YAML is indentation-sensitive)
-              sed -i 's/^              //' /a0/usr/plugins/_model_config/config.yaml
+              # Strip heredoc indentation
+              sed -i 's/^              //' /a0/usr/plugins/_model_config/config.json
               # Run the original entrypoint
               exec /exe/initialize.sh $BRANCH
           ports: