v3.0.0 — PR Review Loop, Multi-Repo Support, Autonomous Test Generation

What's New in v3.0.0

Phase 12 — Robustness Foundation

• Serilog structured JSON logging on every state transition (WorkflowId, StateName, IssueNumber, DurationMs)
• Polly v8 ratio-based circuit breaker on all MCP tool calls — prevents cascading failures
• xUnit + NSubstitute test project with 7 deterministic GsdStateMachine tests

Phase 13 — Smarter Issue Triage

• New TriagingState runs before planning — classifies issues as actionable / needs-info / duplicate / out-of-scope
• --triage flag: classify only, post comment, exit without full workflow
• Duplicate detection via list_issues context; out-of-scope issues closed automatically

Phase 14 — Autonomous Test Generation

• New TestGeneratingState after EditingState — Claude generates xUnit tests for every code change
• Tests committed alongside code on the feature branch
• ValidatingState verifies test compilation before PR is opened

Phase 15 — PR Review Loop

• New --pr <N> mode: fetch diff → Claude LLM review (3-attempt retry) → inline comments with severity → APPROVE or REQUEST_CHANGES
• Inline comments include file path, line number, and severity (info / warning / error)
• Legacy --issue flow completely unaffected

Phase 16 — Multi-Repo Support

• GSD_REPOS JSON array: [{"owner":"org","repo":"name","rateLimitDelaySeconds":30}]
• Backwards compatible — falls back to GSD_GITHUB_OWNER + GSD_GITHUB_REPO if GSD_REPOS is absent
• Watch mode processes all configured repos in sequence with per-repo rate-limit delay
• Checkpoints namespaced per repo — no cross-contamination on resume

Test Coverage

35 tests, 0 failures across all state machine paths, triage logic, test generation, and multi-repo config.

Upgrade Notes

No breaking changes. Existing single-repo GSD_GITHUB_OWNER/GSD_GITHUB_REPO configuration continues to work without modification.