# Sprint 70 Plan: Autonomous Improvement Loop (Guardrailed)

## Context

With full telemetry, benchmarks, and governance in place, Sprint 70 introduces a
guardrailed autonomous improvement loop for adapter quality.

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## Goals

1. Propose adapter/policy improvements from observed failures
2. Validate proposals in sandboxed benchmark cycles
3. Require explicit promotion approval for production adoption
4. Track improvement ROI and rollback health

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## Steps

### Step 929: Improvement proposal generator from failure trends (12 tests)
### Step 930: Sandbox trial runner for proposals (10 tests)
### Step 931: Trial evaluation rubric (quality/risk/cost) (10 tests)
### Step 932: Promotion gate for accepted proposals (10 tests)
### Step 933: Auto-rollback trigger design for degraded proposals (10 tests)
### Step 934: Improvement ROI tracker (8 tests)
### Step 935: `whetstone_propose_adapter_improvements` MCP tool (8 tests)
### Step 936: `whetstone_run_improvement_trial` MCP tool (8 tests)
### Step 937: Continuous improvement program summary artifact (8 tests)
### Step 938: Sprint 70 integration summary + regression (8 tests)

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## Safety Rule

- Autonomous changes cannot bypass human approval into Stable-tier pathways.