Untrack scripts and gitignore local tooling

The repo ships skills, not build tooling. scripts/ and any Python are
now ignored so generators and checkers stay local.

.gitignore

@@ -23,3 +23,7 @@ __pycache__/
 *.pyc
 .venv/
 venv/
+
+# Tooling / generators — kept local, never shipped with the skills
+scripts/
+*.py

scripts/validate_skills.sh

@@ -1,64 +0,0 @@
-#!/usr/bin/env bash
-# Validate every skill in skills/. Run locally or in CI.
-# Checks: SKILL.md exists, has framed frontmatter, name matches the directory,
-# description is non-empty, and the file stays under 500 lines.
-
-set -uo pipefail
-
-root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
-skills_dir="$root/skills"
-errors=0
-count=0
-
-for dir in "$skills_dir"/*/; do
-  name="$(basename "$dir")"
-  f="$dir/SKILL.md"
-  count=$((count + 1))
-
-  if [[ ! -f "$f" ]]; then
-    echo "FAIL $name: no SKILL.md"; errors=$((errors + 1)); continue
-  fi
-
-  # Frontmatter must open on line 1 and close with a second ---
-  if [[ "$(head -n1 "$f")" != "---" ]]; then
-    echo "FAIL $name: frontmatter must start with --- on line 1"; errors=$((errors + 1))
-  fi
-  if [[ "$(grep -c '^---$' "$f")" -lt 2 ]]; then
-    echo "FAIL $name: frontmatter not closed with ---"; errors=$((errors + 1))
-  fi
-
-  fn="$(grep -m1 '^name:' "$f" | sed 's/name:[[:space:]]*//')"
-  if [[ "$fn" != "$name" ]]; then
-    echo "FAIL $name: name '$fn' does not match directory"; errors=$((errors + 1))
-  fi
-
-  desc="$(grep -m1 '^description:' "$f" | sed 's/description:[[:space:]]*//')"
-  if [[ -z "$desc" ]]; then
-    echo "FAIL $name: empty or missing description"; errors=$((errors + 1))
-  fi
-
-  lines="$(wc -l < "$f" | tr -d ' ')"
-  if [[ "$lines" -gt 300 ]]; then
-    echo "FAIL $name: $lines lines (max 300 — move lookup tables into reference/)"
-    errors=$((errors + 1))
-  elif [[ "$lines" -lt 100 ]]; then
-    echo "WARN $name: only $lines lines — likely too thin to be worth installing"
-  fi
-
-  # Every relative markdown link must resolve.
-  while read -r target; do
-    [[ -z "$target" ]] && continue
-    if [[ ! -e "$dir/$target" ]]; then
-      echo "FAIL $name: broken link to $target"; errors=$((errors + 1))
-    fi
-  done < <(grep -o '](\./[^)]*\|](reference/[^)]*' "$f" | sed 's/^](//')
-done
-
-echo "----"
-if [[ "$errors" -eq 0 ]]; then
-  echo "OK: $count skills passed validation"
-  exit 0
-else
-  echo "FAILED: $errors error(s) across $count skills"
-  exit 1
-fi