Design system philosophy
editorial(design-system): de-narrate design-philosophy's MCP-endpoint retraction note (Track-B) — confirmed mcp module + route still real against current app-privategit-design source; stated the fact directly instead of narrating a prior session's correction-of-a-correction, per register-documentation.yaml; also dropped an internal /tokens.json path citation from the ES pair; register-clean EN+ES
@@ -45,7 +45,7 @@ The substrate carries five elements per tenant, in a Git-tracked vault the custo - **`research/`** — AI-readable design-decision rationale, accessibility justifications, brand-voice rules, anti-patterns. - **`exports/`** — derived caches (Figma Variables JSON, Tailwind config, CSS variables, Style Dictionary builds). Recomputable from the canonical four directories above. The substrate engine (`app-privategit-design`) reads this vault and serves it as a public showcase, a DTCG bundle, an AI-readable research surface, and a Model Context Protocol (MCP) server. AI agents query the MCP endpoint at codegen time; design tools query `/tokens.json` for editor synchronisation; humans read the showcase. (Correction retracted, 2026-08-02: an earlier pass in this session flagged the MCP endpoint as absent, checking this archive's local `app-privategit-design` checkout, which is stale relative to canonical. Re-checked against `origin/main`: the MCP module and its `POST /mcp` route are real — see [[mcp-ai-agent-consumable-design-systems]]. This claim holds.) The substrate engine (`app-privategit-design`) reads this vault and serves it as a public showcase, a DTCG bundle, an AI-readable research surface, and a Model Context Protocol (MCP) server. AI agents query the MCP endpoint at codegen time; design tools query the exported token bundle for editor synchronisation; humans read the showcase. See [[mcp-ai-agent-consumable-design-systems]] for the MCP surface in detail. ## Three structural inversions of the Enterprise-tier pattern