Add AGENTS.md

Author: cornelius

AGENTS.md

@@ -0,0 +1,11 @@
+# AGENTS.md
+
+## Project context
+
+This is a Hugo website for hack4rail.org. Challenges are markdown files under `content/challenges/track-*/`. Each challenge has sections for Problem Statement, Proposed Solution, Required Expert Profiles, and Challenge Owners — all in the markdown body, not in front matter.
+
+## Rules
+
+- Don't change things the user didn't ask to change. If input data (e.g. a spreadsheet) contains slightly different wording, ask before renaming anything.
+- Prefer editing markdown content directly over adding front matter + template logic when the content is per-page and already structured as markdown sections.
+- Pay attention to typographic details in markdown rendering (e.g. italic markers next to brackets).