diff --git a/.cursor/rules/kchart.mdc b/.cursor/rules/kchart.mdc
deleted file mode 100644
index 569b43c..0000000
--- a/.cursor/rules/kchart.mdc
+++ /dev/null
@@ -1,19 +0,0 @@
----
-description: Use KChart public APIs and validated AI ChartPlans
-globs:
-  - "**/*chart*.ts"
-  - "**/*chart*.tsx"
-  - "src/ai/**/*.ts"
-alwaysApply: false
----
-
-# KChart
-
-- Read `docs/ai/index.md`, `docs/ai/chart-selection.md`, and `ai/catalog.json`.
-- Use only factories exported by KChart public package entry points.
-- Treat `recipe.*` ids as compositions, not import names.
-- Validate provider output with `validateKChartAIPlan`.
-- Never evaluate model-generated JavaScript or TypeScript.
-- Keep realtime buffers bounded and destroy timers, workers, observers, and chart controllers.
-- Dynamically import browser-only Three.js, CesiumJS, and MapLibre adapters in SSR applications.
-- Run `npm run test:unit` after catalog, schema, series, or option changes.
diff --git a/docs/ai/agent-usage.md b/docs/ai/agent-usage.md
index a8955eb..ff78e91 100644
--- a/docs/ai/agent-usage.md
+++ b/docs/ai/agent-usage.md
@@ -65,7 +65,7 @@ For local exceptions that must not be committed, use the tool's supported local
 
 Use `.cursor/rules/*.mdc`; `.cursorrules` is legacy. A KChart rule should be focused, auto-attached to chart files where possible, and reference this guide plus `ai/catalog.json`.
 
-The repository includes `.cursor/rules/kchart.mdc` as a starting point.
+Consumer projects can add their own Cursor rule when they use Cursor. KChart does not ship editor-specific project configuration in the library repository.
 
 ## Verification checklist