Add four-nines reliability framework with circuit breakers, DLQ, and monitoring#2

Merged

eighteyes merged 12 commits intomainfrom

claude/improve-reliability-four-nines-K38rW

Mar 11, 2026

Commits on Mar 11, 2026

feat(reliability): Add four-nines reliability module with DLQ, circuit breakers, SLI tracking, and safe mode
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feat(reliability): Add DLQ replay via SystemMessageWriter and circuit breaker checkpointing
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feat(reliability): Session-aware DLQ recovery instead of raw message replay
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feat(cli): Add tx mesh health and tx mesh dlq commands
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feat(reliability): Wire all features end-to-end with CLI and docs
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feat(reliability): Checkpoint log + rewind-to recovery
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feat(reliability): Enforce human review before recovery
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docs(reliability): Add human review gates for all 6 priority items
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docs(reliability): Add March of Nines status table with human review gates
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docs(reliability): Add all reliability features from codebase scan
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docs(reliability): Add bash guard to Nine 2 reliability features
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docs(reliability): Consistent format across all nines + extract human review
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