diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
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index 0000000..6cfda0b
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+++ b/.github/copilot-instructions.md
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+## Quick context for AI coding agents
+
+This repository contains simple Ansible playbooks and Nagios check scripts.
+Keep guidance tightly focused on discoverable patterns so contributors can be productive immediately.
+
+Key files and layout
+- `site.yml` — the top-level Ansible play that applies the `pips` role to hosts.
+- `roles/pips/files/` — place for executable check scripts (e.g. `memory_usage.py`).
+- `roles/pips/tasks/main.yml` — role tasks (currently empty); add tasks here to deploy and configure scripts.
+- `roles/pips/vars/main.yml` — role-scoped variables (currently empty).
+- `README.md` — short Dutch summary: "Scripts voor nagios services".
+
+Big-picture architecture
+- This repo is a small Ansible-based deployment of Nagios/NRPE checks. The pattern is:
+  1. Author a script under `roles/pips/files/` (executable, Python3-friendly).
+  2. Add Ansible tasks in `roles/pips/tasks/main.yml` to copy/install the script on target hosts and ensure runtime deps (e.g. `psutil`) are present.
+  3. Configure Nagios/NRPE on the host to call the deployed script.
+
+-Project-specific conventions
+- Keep scripts in `roles/pips/files/`. Scripts should include a shebang (for example, use `/usr/bin/env python3` on the first line) and be executable.
+- Use `roles/pips/tasks/main.yml` for deployment tasks; do not add ad-hoc tasks at the repo root.
+- Put per-role variables in `roles/pips/vars/main.yml`.
+
+Dependencies & integration points
+- `roles/pips/files/memory_usage.py` imports `psutil`. Ensure `python3` and the `psutil` package are installed on target hosts (via distro package `python3-psutil` or `pip3 install psutil`).
+- Scripts are intended to be run by Nagios or NRPE; be mindful of expected stdout/exit codes for Nagios plugins (0 OK, 1 WARNING, 2 CRITICAL, 3 UNKNOWN).
+
+Example actionable tasks (add to `roles/pips/tasks/main.yml`):
+
+```yaml
+- name: Deploy memory_usage check
+  copy:
+    src: memory_usage.py
+    dest: /usr/local/bin/memory_usage.py
+    mode: '0755'
+    owner: root
+    group: root
+
+- name: Ensure psutil is installed (Debian/Ubuntu)
+  apt:
+    name: python3-psutil
+    state: present
+  become: yes
+```
+
+Debugging & developer workflows
+- Run the Ansible playbook locally against an inventory: `ansible-playbook -i <hosts> site.yml -u <user> --ask-become-pass`.
+- To test a script locally on a host, run `python3 roles/pips/files/memory_usage.py` (or copy it to the host and run it with the same python interpreter Nagios will use).
+- If adding or changing a script, ensure it's executable and returns Nagios-compatible exit codes and concise output.
+
+What to avoid / common mistakes
+- Don’t add runtime installation tasks outside `roles/pips/tasks/main.yml` — keep role self-contained.
+- Don’t assume `psutil` exists on the host; document and/or install it in the role tasks.
+
+When merging or extending
+- If a `.github/copilot-instructions.md` already exists, preserve any project-specific notes and only append or update sections that are stale.
+- Keep instructions concise (20–50 lines). Use exact filenames and short code snippets (as above) to illustrate patterns.
+
+If anything is unclear about runtime expectations (NRPE config, target paths, or packaging), ask a human: indicate the host OS and desired plugin location and the agent will propose exact task snippets.
+
+Files referenced while drafting these instructions: `README.md`, `site.yml`, `roles/pips/files/memory_usage.py`, `roles/pips/tasks/main.yml`, `roles/pips/vars/main.yml`.
+
+Next step: I can merge this into the repo now. Tell me if you want different default install paths (e.g. `/usr/lib/nagios/plugins`) or an explicit `requirements.txt` for script dependencies.
diff --git a/roles/pips/files/requirements.txt b/roles/pips/files/requirements.txt
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+++ b/roles/pips/files/requirements.txt
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+psutil
diff --git a/roles/pips/tasks/main.yml b/roles/pips/tasks/main.yml
index e69de29..1455e68 100644
--- a/roles/pips/tasks/main.yml
+++ b/roles/pips/tasks/main.yml
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+# Example: Check if /opt/app exists on remote hosts
+- name: Check if /opt/app directory exists
+  stat:
+    path: /opt/ansible_workdir
+  register: app_dir
+
+- name: Debug app_dir result
+  debug:
+    var: app_dir.stat.exists
+
+- name: Ensure /opt/app directory exists
+  file:
+    path: {{ app_dir.stat.path }}
+    state: directory
+    owner: root
+    group: root
+    mode: '0755'
+  when: app_dir.stat.exists == false
+
+- name: Ensure python requirements file is present
+  ansible.builtin.copy:
+    src: requirements.txt
+    dest: "{{ app_dir.stat.path }}/requirements.txt"
+    mode: '0644'
+  when: app_dir.stat.exists == true and python_requirements is defined
+
+- name: Install specified python requirements
+  ansible.builtin.pip:
+    requirements: "{{ app_dir.stat.path }}/requirements.txt"
+  when: app_dir.stat.exists == true and python_requirements is defined
+
+- name: Deploy custom Nagios/NRPE script
+  ansible.builtin.copy:
+    src: memory_usage_check.py
+    dest: /usr/local/nagios/libexec/my_custom_check.py
+    mode: '0755'
diff --git a/roles/pips/vars/main.yml b/roles/pips/vars/main.yml
index e69de29..a732c1e 100644
--- a/roles/pips/vars/main.yml
+++ b/roles/pips/vars/main.yml
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+python_requirements: true
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