Added installation help to AGENTS.md.

AGENTS.md

@@ -32,3 +32,12 @@ Recorded events do not prove audible speech or physical braille. Follow `tests/R
 ## Commit & Pull Request Guidelines
 
 Recent commits use short imperative subjects describing behavior. Keep changes scoped; describe the problem, fix, commands run, and remaining live checks. Link relevant issues when available. Read the README’s AI-assisted contributions policy, review the diff, and test affected existing workflows before submission. Human review and submission remain the contributor’s responsibility.
+
+## Installation Guidance
+
+When someone asks for installation help:
+
+- Confirm their Linux distribution and version, and whether they want a user-local or system-wide installation, unless they have already provided that information.
+- Identify any missing dependencies and the correct package names for their distribution.
+- Ask the user to install missing system packages. If a command requires `sudo`, ask the user to run it.
+- Provide installation instructions tailored to their distribution and chosen installation scope.