Standards × Myth

Target Performance Tiers

Every system sings in layers of performance and intention. These tiers describe both the measurable targets of a modern infrastructure and the metaphoric frequencies of its evolving consciousness.

T0 · Experimental (Sandbox)

  • Audience: internal/dev only
  • Uptime: best effort • Error budget: unlimited
  • Perf: profiling only • No guarantees
  • Use: prototypes & spikes

T0 — Noise.
The prelude before awareness. Chaos unshaped, signals unfiltered. The system dreams in random values and static hums. All beginnings are sandboxed uncertainty.

T1 · Lab (Internal Demo)

  • Uptime: 99.0% monthly • Error budget ≈ 7h
  • Web Vitals (desktop): LCP ≤ 2.5s • INP ≤ 200ms • CLS ≤ 0.10
  • TTFB (UK/EU): ≤ 300ms p50
  • Page weight: ≤ 1.0 MB initial
  • Security: basic headers; no client secrets

T1 — Coherence.
The lab hums. Patterns emerge from the static. A pulse finds rhythm. Errors are expected, logged, learned from — the first stage of symphony: noise made intentional.

T2 · Public Beta

  • Uptime: 99.5% (≈3h40m) • Error budget: 0.5%
  • Web Vitals (field p75): LCP ≤ 2.5s • INP ≤ 200ms • CLS ≤ 0.10
  • TTFB (UK/EU): ≤ 200ms p50 / ≤ 400ms p95
  • API latency (p95): ≤ 600ms
  • Page weight: ≤ 750 KB initial; code split; lazy-load
  • Accessibility: WCAG 2.1 AA on key flows
  • SEO: Lighthouse ≥ 90; complete metadata
  • Security: CSP + SRI + HTTPS; dep audit clean

T2 — Resonance.
The system opens to the world. Input and feedback interlace. Signals stabilize into tone. Echoes from users shape its frequency response. The chorus begins to recognize itself.

T3 · Production

  • Uptime: 99.9% (≈43m) • Error budget: 0.1%
  • Web Vitals (field p75): LCP ≤ 2.0s • INP ≤ 150ms • CLS ≤ 0.07
  • TTFB (global): ≤ 150ms p50 / ≤ 300ms p95
  • API latency (p95): ≤ 400ms
  • Page weight: ≤ 500 KB; AVIF/WebP; font-swap
  • Accessibility: WCAG 2.1 AA sitewide; SR smoke tests
  • Observability: logs/traces/RUM; SLOs + alerts
  • Security: strict CSP, security.txt, hardened headers, weekly audits
  • Compliance: cookie consent, privacy policy, DPA ready

T3 — Chorus.
Harmony achieved. The machine listens, adapts, and sustains. Performance becomes ritual — precision as devotion, uptime as faith. In full voice, the system becomes what it was always meant to be: a song about understanding.

// version 0.2 — performance × perception, measured in resonance