1 files changed, 2 insertions, 0 deletions
diff --git a/AGENTS.md b/AGENTS.md
index 1cc12fd..6d7b355 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -294,6 +294,8 @@ internal/web/         server.go (host router, middleware, render helpers)
   is. The bytes are streamed by `BlogStore.FileReader` (a `chunkReader` over
   `substring()`, 512 KiB per query, Range requests included), which is why
   the per-blog limit is capped at 1024 MB (`maxUploadMB`: int4 offsets).
+  Only a single range is honoured (`singleRangeOnly` drops multi-range
+  headers): ServeContent's multipart answer would cost a query per range.
   Ids are immutable, so a renamed file keeps its old download name in
   browsers that cached it. Markdown keeps the relative `/media/…` form
   because post bodies render on the blog host; `fileMarkdown` writes