Add Python tooling validation foundation

.github/workflows/lint.yml

@@ -28,6 +28,9 @@ jobs:
             -P infra-run/scripts/bash/gpfs \
             -P infra-run/scripts/bash/veritas
 
+      - name: Python syntax checks
+        run: bash scripts/check-python.sh
+
       - name: yamllint
         run: yamllint .
 

AGENTS.md

@@ -41,6 +41,7 @@ Focused checks:
 ```bash
 ./scripts/check-bash.sh
 ./scripts/check-ansible.sh
+./scripts/check-python.sh
 ./scripts/check-docs.sh
 ```
 
@@ -64,6 +65,15 @@ Also run targeted checks for changed files, such as `bash -n`, `ansible-playbook
 - Exit codes: `0` OK, `1` operational issue, `2` invalid input or missing dependency.
 - Keep scripts readable; separate discovery, pre-check, change, post-check, and reporting when it helps.
 
+## Python Standards
+
+- Use Python for parsing, reporting, and structured operational tooling where it adds value over Bash.
+- Keep Python tools read-only by default.
+- Prefer the Python standard library.
+- Avoid frameworks and unnecessary abstractions.
+- Use clear operational output and meaningful exit codes.
+- Keep tools small, focused, and easy to validate.
+
 ## Ansible Standards
 
 - Keep playbooks short and roles simple.

scripts/check-python.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+set -o errexit
+set -o nounset
+set -o pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+PYTHON_DIR="$ROOT_DIR/infra-run/scripts/python"
+
+ok_count=0
+warn_count=0
+fail_count=0
+
+ok() {
+  printf 'OK: %s\n' "$*"
+  ok_count=$((ok_count + 1))
+}
+
+warning() {
+  printf 'WARNING: %s\n' "$*"
+  warn_count=$((warn_count + 1))
+}
+
+critical() {
+  printf 'CRITICAL: %s\n' "$*"
+  fail_count=$((fail_count + 1))
+}
+
+if ! command -v python3 >/dev/null 2>&1; then
+  critical "python3 not installed"
+  printf '\nPython summary: %d OK, %d WARNING, %d CRITICAL\n' "$ok_count" "$warn_count" "$fail_count"
+  exit 2
+fi
+
+if [[ ! -d "$PYTHON_DIR" ]]; then
+  warning "No infra-run/scripts/python directory found"
+  printf '\nPython summary: %d OK, %d WARNING, %d CRITICAL\n' "$ok_count" "$warn_count" "$fail_count"
+  exit 0
+fi
+
+mapfile -t python_files < <(find "$PYTHON_DIR" -type f -name '*.py' -print | sort)
+
+if ((${#python_files[@]} == 0)); then
+  warning "No Python files found under infra-run/scripts/python"
+else
+  ok "Found ${#python_files[@]} Python files"
+fi
+
+for file in "${python_files[@]}"; do
+  if python3 -m py_compile "$file"; then
+    ok "py_compile ${file#"$ROOT_DIR"/}"
+  else
+    critical "Python syntax failed: ${file#"$ROOT_DIR"/}"
+  fi
+done
+
+printf '\nPython summary: %d OK, %d WARNING, %d CRITICAL\n' "$ok_count" "$warn_count" "$fail_count"
+
+if ((fail_count > 0)); then
+  exit 1
+fi
+
+exit 0

scripts/validate-repo.sh

@@ -12,6 +12,11 @@ run_check() {
   shift
 
   printf '\n== %s ==\n' "$name"
+  if [[ ! -x "$1" ]]; then
+    printf 'WARNING: %s check is missing or not executable: %s\n' "$name" "$1"
+    return 0
+  fi
+
   if "$@"; then
     printf 'OK: %s completed\n' "$name"
   else
@@ -22,6 +27,7 @@ run_check() {
 
 run_check "Bash" "$ROOT_DIR/scripts/check-bash.sh"
 run_check "Ansible" "$ROOT_DIR/scripts/check-ansible.sh"
+run_check "Python" "$ROOT_DIR/scripts/check-python.sh"
 run_check "Docs" "$ROOT_DIR/scripts/check-docs.sh"
 
 printf '\n== Repository summary ==\n'