diff --git a/CHANGES.md b/CHANGES.md
index 4c1a1eb3f..0471adfc9 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,17 @@
+
+## Changes in 1.14 (in development)
+
+* Use `chunks="auto"` by default in `rioxarray.open_rasterio` within
+  `xcube.core.store.fs.impl.rasterio` when reading GeoTIFF and JPEG2000 files.
+  This enables efficient, storage-aware data access without forcing explicit
+  rechunking.
+* Added the optional argument `band_as_variable`, which allows to preserve the
+  original dataset structure as returned by `rioxarray`, rather than splitting
+  raster bands into separate data variables. This improves data access patterns and
+  avoids unnecessary transformations. Defaults are set to `True`.
+* Added a file `llms.txt` to xcube's source root to help LLMs pick up relevant 
+  project infos. 
+
 ## Changes in 1.13.1
 
 ### Enhancements
diff --git a/llms.txt b/llms.txt
new file mode 100644
index 000000000..0076c7c3d
--- /dev/null
+++ b/llms.txt
@@ -0,0 +1,39 @@
+# llms.txt — xcube project summary
+
+# About
+# xcube is a Python toolkit for generating and exploiting geospatial data cubes
+# powered by xarray, dask, and zarr.
+# Docs: https://xcube.readthedocs.io/ :contentReference[oaicite:1]{index=1}
+
+## Highest-level overview
+docs/overview.md
+README.md
+CHANGES.md
+CONTRIBUTING.md
+CODE_OF_CONDUCT.md
+
+## Core code & API
+xcube/core/        # core API functions
+xcube/cli/         # CLI entry points
+xcube/webapi/      # web API + server endpoints
+xcube/util/        # helpers & utilities
+pyproject.toml
+
+## Data specs & models
+docs/source/cubespec.md  # dataset conventions & CF conventions use :contentReference[oaicite:2]{index=2}
+
+## Examples & demos
+examples/serve/demo/README.md  # server demo usage :contentReference[oaicite:3]{index=3}
+examples/serve/demo/*
+
+## Tests
+test/
+
+## Development
+docs/source/devguide.md  # coding style + contribution rules :contentReference[oaicite:4]{index=4}
+
+## What to ignore (for LLM focus)
+.github/
+docker/
+scripts/
+*.yml