The system prompt and tool prompts for their open source (Apache 2 licensed) Python+Textual+Pydantic CLI tool are fun to read:

core/prompts/cli.md https://github.com/mistralai/mistral-vibe/blob/v1.0.4/vibe/c...

core/prompts/compact.md https://github.com/mistralai/mistral-vibe/blob/v1.0.4/vibe/c...

.../prompts/bash.md https://github.com/mistralai/mistral-vibe/blob/v1.0.4/vibe/c...

.../prompts/grep.md https://github.com/mistralai/mistral-vibe/blob/v1.0.4/vibe/c...

.../prompts/read_file.md https://github.com/mistralai/mistral-vibe/blob/v1.0.4/vibe/c...

.../prompts/write_file.md https://github.com/mistralai/mistral-vibe/blob/v1.0.4/vibe/c...

.../prompts/search_replace.md https://github.com/mistralai/mistral-vibe/blob/v1.0.4/vibe/c...

.../prompts/todo.md https://github.com/mistralai/mistral-vibe/blob/v1.0.4/vibe/c...