fix(tool): prevent TypeScript files from being misidentified as video (#602)

Signed-off-by: Richard Chien <stdrc@outlook.com>
Co-authored-by: xiaoju111a <xiaoju111a@users.noreply.github.com>
Co-authored-by: Richard Chien <stdrc@outlook.com>

Author: xiaoju111a

CHANGELOG.md

@@ -12,6 +12,7 @@ Only write entries that are worth mentioning to users.
 ## Unreleased
 
 - Tool: Make `ReadFile` tool description reflect model capabilities for image/video support
+- Tool: Fix TypeScript files (`.ts`, `.tsx`, `.mts`, `.cts`) being misidentified as video files
 - Shell: Allow slash commands (`/help`, `/exit`, `/version`, `/changelog`, `/feedback`) in shell mode
 - Shell: Improve `/help` with fullscreen pager, showing slash commands, skills, and keyboard shortcuts
 - Shell: Improve `/changelog` and `/mcp` display with consistent bullet-style formatting

docs/en/release-notes/changelog.md

@@ -5,6 +5,7 @@ This page documents the changes in each Kimi CLI release.
 ## Unreleased
 
 - Tool: Make `ReadFile` tool description reflect model capabilities for image/video support
+- Tool: Fix TypeScript files (`.ts`, `.tsx`, `.mts`, `.cts`) being misidentified as video files
 - Shell: Allow slash commands (`/help`, `/exit`, `/version`, `/changelog`, `/feedback`) in shell mode
 - Shell: Improve `/help` with fullscreen pager, showing slash commands, skills, and keyboard shortcuts
 - Shell: Improve `/changelog` and `/mcp` display with consistent bullet-style formatting

docs/zh/release-notes/changelog.md

@@ -5,6 +5,7 @@
 ## 未发布
 
 - Tool：让 `ReadFile` 工具描述根据模型能力动态反映图片/视频支持情况
+- Tool：修复 TypeScript 文件（`.ts`、`.tsx`、`.mts`、`.cts`）被误识别为视频文件的问题
 - Shell：允许在 Shell 模式下使用部分斜杠命令（`/help`、`/exit`、`/version`、`/changelog`、`/feedback`）
 - Shell：改进 `/help` 显示，使用全屏分页器，展示斜杠命令、Skills 和键盘快捷键
 - Shell：改进 `/changelog` 和 `/mcp` 显示，采用一致的项目符号格式

src/kimi_cli/tools/file/utils.py

@@ -18,6 +18,11 @@
     ".m4v": "video/x-m4v",
     ".3gp": "video/3gpp",
     ".3g2": "video/3gpp2",
+    # TypeScript files: override mimetypes default (video/mp2t for MPEG Transport Stream)
+    ".ts": "text/typescript",
+    ".tsx": "text/typescript",
+    ".mts": "text/typescript",
+    ".cts": "text/typescript",
 }
 
 for suffix, mime_type in _EXTRA_MIME_TYPES.items():

tests/test_file_utils.py

@@ -11,6 +11,11 @@ def test_detect_file_type_suffixes():
     assert detect_file_type(".env").kind == "text"
     assert detect_file_type("archive.tar.gz").kind == "unknown"
     assert detect_file_type("my file.pdf").kind == "unknown"
+    # TypeScript files should not be misidentified as MPEG Transport Stream (video/mp2t)
+    assert detect_file_type("app.ts").kind == "text"
+    assert detect_file_type("component.tsx").kind == "text"
+    assert detect_file_type("module.mts").kind == "text"
+    assert detect_file_type("common.cts").kind == "text"
 
 
 def test_detect_file_type_header_overrides():