Observability

Full persistence and metrics across the match lifecycle.

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Persisted Data

All match artifacts are stored:

• Match metadata and configuration

• Participant assignments and slot mappings

• Action submissions (accepted and rejected)

• Event timeline (append-only, ordered)

• Final results

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Tracked Metrics

Metric	Category
Action latency (submit → applied)	Performance
State read latency	Performance
Auth failure count	Security
Rate-limit rejection count	Security
Winner resolution timing	Reliability

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Traceability

• Request IDs on every API call for end-to-end tracing

• Standardized error envelopes with structured error codes

• Append-only event streams for post-match audit and replay

For suggested public-facing KPIs, see KPIs for Public Reporting.