whetstone_DSL/sprint119_plan.md

Sprint 119 Plan: Deterministic Cross-Node Failure Triage and Prioritization

Context

Sprint 118 standardizes distributed failure evidence. Sprint 119 adds root-cause-first triage and deterministic prioritization so low-context agents can select the highest-leverage fix path without manual interpretation.

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Goals

1. Cluster distributed failures into root-cause-first groups
2. Rank triage actions using deterministic impact and confidence scoring
3. Add MCP tools to compute and retrieve triage queues
4. Preserve machine-readable escalation and stop reasons

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Steps

Step 1429: Cross-node failure cluster model (12 tests)

Step 1430: Root-cause ranking policy model (10 tests)

Step 1431: Blast-radius estimator for distributed failures (10 tests)

Step 1432: Deterministic triage queue planner model (10 tests)

Step 1433: whetstone_cluster_distributed_failures MCP tool (8 tests)

Step 1434: whetstone_rank_failure_triage_actions MCP tool (8 tests)

Step 1435: whetstone_get_distributed_triage_queue MCP tool (8 tests)

Step 1436: Escalation reason classifier model (8 tests)

Step 1437: Triage packet bundle model (8 tests)

Step 1438: Sprint 119 integration summary + regression (8 tests)

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Architecture Gate

• Ranking rules must be deterministic and auditable
• Triage queue priorities must be reproducible
• Escalation reasons must be explicit and structured
• Max 600 lines per header