Add harness-experimental: repository-level operating harness for agen… · ai-boost/awesome-harness-engineering@214f3b4 · GitHub

- [Mirage](https://github.com/strukto-ai/mirage) — Mounts S3, Slack, Gmail, GitHub, and Redis side-by-side as a single virtual filesystem so agents interact with every backend through familiar bash commands instead of learning N distinct APIs. The key harness insight: LLMs are already fluent in `grep`, `cat`, and `cp` — leveraging that vocabulary eliminates tool-schema bloat and makes cross-service pipelines compose as naturally as local shell scripts.