Compound effect with AI: two assistants, one working directory.
Claude Code with Opus 5.5 does the work, and stores status, findings and information in Markdown files in the directory.
Mistral Vibe with GLM-5.3 reviews what Claude Code produced.
The MD files are the shared memory. Each tool reads what the other left behind, a new session picks up where the last one stopped, and the second model catches what the first one missed.