# Latticra Runtime Boundary Policy Matrix Refinement

Status: initial runtime boundary policy matrix refinement implementation
Scope: deterministic no-effect policy matrix metadata for runtime-boundary classification and reporting.

## Purpose

This document records the runtime-boundary policy matrix refinement after runtime-boundary report refinement and Lat pipeline report refinement.

The goal is to make the runtime-boundary decision shape easier to audit by reporting the matrix cell that a request falls into, along with stable booleans for effect, mode, authority, and future-gate posture.

This refinement does not grant authority, execute a request, mutate state, perform I/O, open network connections, touch hardware, control a terminal, or provide runtime behavior.

## Added report metadata

The runtime boundary record now includes:

```text
policy_matrix_cell
matrix_effect_allowed
matrix_mode_allowed
matrix_requires_authority
matrix_requires_future_gate
```

The deterministic runtime boundary report now emits those fields.

## Policy matrix cells

Initial policy matrix cells:

```text
no-effect-report
no-effect-validation
no-effect-classification
future-gated-operation
blocked-effect
prerequisite-denied
invalid
unsupported
```

### no-effect-report

A no-effect report request with the correct report-only mode and satisfied prerequisites.

### no-effect-validation

A no-effect validation request with the correct validation-only mode and satisfied prerequisites.

### no-effect-classification

A no-effect classification request with the correct classification-only mode and satisfied prerequisites.

### future-gated-operation

An operational request kind that remains behind the future gate.

### blocked-effect

A known request whose requested effect is outside the current no-effect/read-only boundary.

### prerequisite-denied

A known request whose effect and mode shape are acceptable but whose prerequisites are not satisfied.

### invalid

A null, unknown, or malformed request/effect identity.

### unsupported

A reserved fallback cell for future matrix expansion.

## Matrix booleans

The matrix report includes:

```text
matrix_effect_allowed      -> requested effect is currently no-effect/read-only
matrix_mode_allowed        -> mode matches the request-family expectation
matrix_requires_authority  -> runtime boundary authority summary is expected
matrix_requires_future_gate -> request kind is operational/future-gated
```

## Validation

Run:

```sh
sh scripts/test-runtime-boundary-policy-matrix-refinement.sh
sh scripts/test-runtime-boundary.sh
```

The focused invariant tests verify:

```text
runtime_boundary_policy_matrix_labels_are_stable
runtime_boundary_policy_matrix_reports_validation_cell
runtime_boundary_policy_matrix_reports_future_gate_cell
runtime_boundary_policy_matrix_reports_blocked_effect_cell
runtime_boundary_policy_matrix_reports_prerequisite_denial_cell
runtime_boundary_policy_matrix_reports_invalid_cell
```

## Compatibility

This refinement preserves existing runtime-boundary behavior for:

```text
allow-report
allow-validation
allow-classification
future-gated operational requests
unknown request denial
unknown effect denial
prerequisite denial
operator confirmation non-override behavior
small-buffer behavior
runtime-boundary report-refinement fields
Lat pipeline evidence fields
Lat pipeline line-comment evidence fields
Lat-specific LIR evidence fields
```

## Non-claims

This report refinement does not provide:

```text
runtime behavior
command execution
Lat execution
LIR execution
task effect execution
state mutation
file I/O
network I/O
server interaction
self-update
recovery behavior
rollback behavior
hardware support
boot behavior
terminal control
security isolation
sandboxing
malware prevention
ransomware prevention
certification
accreditation
operating-system completeness
```