# Constraint Optimization -- Technical Specification

**Version**: v1.0.0 | **Status**: Reserved | **Last Updated**: May 2026

## Overview

Reserved submodule for optimization solvers within the FPF (Fetch-Parse-Format) framework. Intended to provide constraint satisfaction and optimization algorithms for selecting optimal parse strategies, resolving conflicting constraints, and optimizing format output quality.

## Architecture

This submodule currently reserves an import namespace with `__all__ = []`. When populated, it is expected to provide solver interfaces compatible with the `fpf.constraints` constraint definitions.

## Planned Components

| Component | Purpose |
|-----------|---------|
| ConstraintSolver | Satisfy a set of constraints over parsed data |
| FormatOptimizer | Optimize output quality given formatting constraints |
| StrategySelector | Choose optimal parse strategy based on content characteristics |
| CostFunction | Define optimization objectives for pipeline tuning |

## Dependencies

- **Internal**: Expected to consume `fpf.constraints` for constraint definitions and `fpf.models` for domain data
- **External**: Potential solver backends include `z3-solver` or `scipy`, selected by the concrete adapter

## Constraints

- No implementation exists yet; all access will raise `ImportError` or `NotImplementedError`.
- Zero-mock: when implemented, real optimization only; no hardcoded optimal values.
- Solvers must support timeout parameters to prevent unbounded computation.

## Error Handling

- Unimplemented features raise `NotImplementedError`.
- All errors logged before propagation.

## Navigation

- **Self**: `SPEC.md`
- **Parent**: [../README.md](../README.md)
- **Readme**: [README.md](README.md)
- **Agents**: [AGENTS.md](AGENTS.md)
- **Repository Root**: [README.md](../../../../README.md)
