loss-driven-development

LDD — Gradient Descent for Agents. Thirteen discipline skills across four parameter spaces: inner (code, ∂L/∂code), refinement (deliverable, ∂L/∂output), outer (method, ∂L/∂method), CoT (reasoning chain, ∂L/∂thought). Plus four infrastructure skills: using-ldd dispatcher, opt-in architect-mode (L3/L4 greenfield design), bootstrap-userspace (host-portability across Claude Code / Desktop / Codex / Gemini CLI / ChatGPT), host-statusline (Claude-Code live loss monitor). Total 17 skills; measured Δloss_bundle = 0.561 (normalized mean across 11 measurement-eligible disciplines; target ≥ 0.30).