From cfe2ce624a2562b015550bdb48d334d13a4277c1 Mon Sep 17 00:00:00 2001
From: zbl1998-sdjn <1051061805@qq.com>
Date: Sat, 30 May 2026 00:15:27 +1000
Subject: [PATCH] chore: normalize line endings to LF via .gitattributes

The repository has no `.gitattributes`, so with Git for Windows' default
`core.autocrlf=true`, source files check out as CRLF on Windows. This
includes the raw-text prompt/skill `.md` files imported as model input
(e.g. `packages/agent-core/src/tools/builtin/file/read.ts` does
`import readDescriptionTemplate from './read.md'`). A contributor editing
and committing such a file on Windows can silently introduce CRLF, which
changes the shipped prompt's byte/token footprint.

Add `* text=auto eol=lf` (plus explicit `binary` types) so the repository
stores and checks out LF on every platform, regardless of a contributor's
local `core.autocrlf`. Existing blobs are already LF, so this is a
declarative change with no content churn.
---
 .gitattributes | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 .gitattributes

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..0a2b5396
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,20 @@
+# Normalize line endings to LF in the repository for all text files.
+# Without this, Windows checkouts (core.autocrlf=true) introduce CRLF into
+# source and raw-text prompt/skill `.md` files that are loaded as model
+# input, which inflates token/byte counts and breaks snapshot tests.
+* text=auto eol=lf
+
+# Explicit binary types (never normalize)
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.webp binary
+*.woff binary
+*.woff2 binary
+*.ttf binary
+*.otf binary
+*.mp4 binary
+*.mov binary
+*.pdf binary