Initial commit

CLI tool to validate skill.md files against the agent skill specification.
Supports local files and remote URLs, with human-readable and JSON output.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[Makefile]
+indent_style = tab