# Sprint 69 Plan: Multi-Team Policy Federation and Tenant Isolation

## Context

Different teams require different risk tolerances and policies. Sprint 69 adds
federated policy support with strict tenant isolation.

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## Goals

1. Support organization/team-scoped transpilation policies
2. Isolate metrics, decisions, and waivers by tenant
3. Allow shared adapters with tenant-specific gate policies
4. Preserve reproducibility under federated configurations

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## Steps

### Step 919: Tenant-scoped policy model (12 tests)
### Step 920: Policy inheritance/override resolution engine (10 tests)
### Step 921: Tenant isolation guardrails for logs/artifacts (10 tests)
### Step 922: Tenant-scoped waiver/approval ledger (10 tests)
### Step 923: Cross-tenant adapter sharing contract (10 tests)
### Step 924: Federated reproducibility validator (8 tests)
### Step 925: `whetstone_set_tenant_policy` MCP tool (8 tests)
### Step 926: `whetstone_get_tenant_support_matrix` MCP tool (8 tests)
### Step 927: Federated governance report generator (8 tests)
### Step 928: Sprint 69 integration summary + regression (8 tests)

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## Isolation Rule

- Tenant data/artifacts must never leak across policy scopes.