llama.cpp error: 'System message must be at the beginning' with Qwen 3.5

[winmutt]

Environment

• Model: Qwen3.5-122B-A10B-GGUF (Qwen 3.5)
• Provider: lemonade (llama.cpp-based server)
• Plugin: opencode-agent-memory

Error

Error: Jinja Exception: System message must be at the beginning.

Steps to Reproduce

1. Enable opencode-agent-memory plugin
2. Use Qwen 3.5 model via llama.cpp server
3. Start a chat session

Root Cause

The plugin creates multiple system messages when merging memory blocks with provider system content. llama.cpp Jinja templates require exactly one system message at position 0.

See Also

PR #10 contains the fix

[chillteen]

Ive seen a new update on LM Studio reagrding Jinga template fixing with a specific llama.cpp build. I guess you have to update the llama.cpp build!