[C5 HL-035] Operate SLOs, telemetry, incidents, and disaster recovery #45

Outcome

Make the health and failure of introduced services observable and recoverable.

Placement and activation

• Circle: C5 — Reusable and operated product platform
• System responsibilities: Platform / Assurance
• Capability coverage: 07 Reliability, Observability & Operations; 08 Quality, Testing & Evaluation; 14 Customer Success & Support
• Planning status: Conditional; activate only when the requirement below is met.
• Activation: Operated services or installation availability obligations exist.
• Parent epic: [EPIC C5] Reusable and operated product platform #8; master roadmap: [MASTER EPIC] Hole-loop: concentric evolution within Persona / Visual Form Canon #2.

Dependencies

Required prerequisites:

• An identified service or installation availability obligation, named operator, exact edition/runtime identity, and failure/recovery scenarios for that obligation.
• The relevant deployment and operator record from HL-017 #27 for the browser edition or HL-026 #36 for a performance; use the selected runbook scope rather than requiring every rendition.

Conditional dependencies:

• HL-034 #44 applies when an operated service runtime has been introduced.
• HL-032 #42 applies when recovery includes hosted persistence or personal/session data.
• HL-040 #50 applies when a customer support agreement creates response or escalation obligations.

A static or offline installation can define availability, synthetic checks, interruption recovery, and operator runbooks without creating a service backend, accounts, or a data platform. Select telemetry and recovery methods for the actual runtime.

Acceptance evidence

• Define user-facing SLIs/SLOs and error budgets; publish contractual SLAs only when an actual agreement supports them.
• Collect minimized structured logs, metrics, error tracking, health checks and synthetic journeys; add distributed traces only across actual service boundaries.
• Configure actionable alert routing, incident severity/ownership, status communication, post-incident notes, and operator runbooks; validate an injected fault is detected.
• Set RPO/RTO from real recovery needs; rehearse data/artifact restore, service restart, dependency outage and rollback, including privacy-sensitive restore behavior.
• Benchmark capacity/load/performance and cost on chosen workloads; use evidence for scaling rather than assuming enterprise traffic.

Completion and scope

Attach the actual artifact or commit, relevant verification, limitations, and an artist decision where a composition changes. This issue plans authorized work; creation does not claim implementation or deployment. Preserve independent work/source identities and private source boundaries. Repository creation requires the extraction evidence in HL-004 #13 and HL-045 #14.