| Category | Requirement | Metric / Target | |----------|-------------|-----------------| | | Cold‑start latency ≤ 300 ms; warm‑start ≤ 50 ms. | | Scalability | Should support X concurrent sandbox runs per node; auto‑scale horizontally. | | Reliability | 99.9 % SLA for API availability. | | Security | Execution sandbox must be CIS‑Docker‑Benchmark compliant; no root privileges. | | Compliance | Must satisfy GDPR data‑processing constraints (no persistent storage of user payload). | | Observability | Export metrics to Prometheus; logs to Loki/ELK; tracing via OpenTelemetry. | | Maintainability | Code coverage ≥ 85 % for new modules; documentation generated via Sphinx/Typedoc. | | Usability | UI response time ≤ 200 ms for code‑editor actions. |
There is a poetic irony in the operation of a "Frengine." It relies on the distortion of light to find the clarity of shape. This mirrors the Platonic allegory of the cave, where shadows represent a lesser reality; here, however, the "shadows" (the deformed fringes) are the very data points that allow us to reconstruct a higher, three-dimensional reality. frengine