# LeanCTX and Headroom > **Status: historical comparison note — not canonical product copy.** Current > LeanCTX scope and status are governed by > `docs/internal/README.md` (internal, not in this repository). This note does not claim > savings, quality preservation, provider compatibility, or business outcomes. Both products can be considered when inspecting or reducing model-context overhead. LeanCTX's available local Runtime primitives are designed to be used with an existing coding agent and must be assessed on the actual workload. ## Evidence boundary A lower token or calculated-cost figure alone is not a win. A valid comparison uses a comparable baseline and treatment, a declared quality threshold, the cost basis, and inspectable methodology. Earlier competitive claims and figures are historical and are intentionally not reproduced here. LeanCTX is **The Context SDK for AI Agents**; it is not a hosted cost-management or analytics platform. See the internal Product Architecture (`docs/internal/vision/PRODUCT-ARCHITECTURE.md`, internal — not in this repository).