# ADR-002 — Keep the Reasoning Backbone Provider-Neutral

**Status:** Accepted (retrospective)  
**Date:** 2026-07-20

## Context

Users may use hosted APIs, local OpenAI-compatible servers, or already-authenticated coding-agent CLIs. No single provider supplies a stable universal capability contract.

## Decision

Resolve provider/model differences behind shared configuration and LLM/agent adapters. Treat provider responses as untrusted proposals; safety and tool contracts remain in T3MP3ST.

## Consequences

Users retain keyless/local options and provider choice. Compatibility and fallback testing expand, and lowest-common-denominator assumptions must not erase provider-specific behavior.