whetstone_DSL/sprint94_plan.md

Sprint 94 Plan: Zero-Trust Execution and Hardened Isolation

Context

As extensibility increases, execution security must move toward zero-trust defaults. Sprint 94 hardens adapter/plugin/verifier execution boundaries.

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Goals

1. Enforce zero-trust execution policies for all external components
2. Add stronger isolation boundaries and privilege minimization
3. Improve tamper detection and forensic traceability
4. Reduce blast radius of compromised integrations

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Steps

Step 1169: Zero-trust policy model for execution surfaces (12 tests)

Step 1170: Fine-grained capability grant engine (10 tests)

Step 1171: Hardened sandbox profile library (10 tests)

Step 1172: Integrity attestation packet schema (10 tests)

Step 1173: Tamper detection and forensic event pipeline (10 tests)

Step 1174: Incident containment automation for compromised components (8 tests)

Step 1175: whetstone_get_execution_attestation MCP tool (8 tests)

Step 1176: whetstone_set_zero_trust_policy MCP tool (8 tests)

Step 1177: Security hardening report artifact (8 tests)

Step 1178: Sprint 94 integration summary + regression (8 tests)

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Security Rule

• External components run with least privilege and explicit capability grants only.