feat: Complete fleet — 94 skills across 10+ domains

Pulled ALL skills from 15 source repositories:
- anthropics/skills: 16 (docs, design, MCP, testing)
- obra/superpowers: 14 (TDD, debugging, agents, planning)
- coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth)
- better-auth/skills: 5 (auth patterns)
- vercel-labs/agent-skills: 5 (React, design, Vercel)
- antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo)
- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
subagents serve coding, business, design, marketing, writing,
logistics, analysis, and more.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

skills/xlsx/scripts/office/pack.py

@@ -0,0 +1,159 @@
+"""Pack a directory into a DOCX, PPTX, or XLSX file.
+
+Validates with auto-repair, condenses XML formatting, and creates the Office file.
+
+Usage:
+    python pack.py <input_directory> <output_file> [--original <file>] [--validate true|false]
+
+Examples:
+    python pack.py unpacked/ output.docx --original input.docx
+    python pack.py unpacked/ output.pptx --validate false
+"""
+
+import argparse
+import sys
+import shutil
+import tempfile
+import zipfile
+from pathlib import Path
+
+import defusedxml.minidom
+
+from validators import DOCXSchemaValidator, PPTXSchemaValidator, RedliningValidator
+
+def pack(
+    input_directory: str,
+    output_file: str,
+    original_file: str | None = None,
+    validate: bool = True,
+    infer_author_func=None,
+) -> tuple[None, str]:
+    input_dir = Path(input_directory)
+    output_path = Path(output_file)
+    suffix = output_path.suffix.lower()
+
+    if not input_dir.is_dir():
+        return None, f"Error: {input_dir} is not a directory"
+
+    if suffix not in {".docx", ".pptx", ".xlsx"}:
+        return None, f"Error: {output_file} must be a .docx, .pptx, or .xlsx file"
+
+    if validate and original_file:
+        original_path = Path(original_file)
+        if original_path.exists():
+            success, output = _run_validation(
+                input_dir, original_path, suffix, infer_author_func
+            )
+            if output:
+                print(output)
+            if not success:
+                return None, f"Error: Validation failed for {input_dir}"
+
+    with tempfile.TemporaryDirectory() as temp_dir:
+        temp_content_dir = Path(temp_dir) / "content"
+        shutil.copytree(input_dir, temp_content_dir)
+
+        for pattern in ["*.xml", "*.rels"]:
+            for xml_file in temp_content_dir.rglob(pattern):
+                _condense_xml(xml_file)
+
+        output_path.parent.mkdir(parents=True, exist_ok=True)
+        with zipfile.ZipFile(output_path, "w", zipfile.ZIP_DEFLATED) as zf:
+            for f in temp_content_dir.rglob("*"):
+                if f.is_file():
+                    zf.write(f, f.relative_to(temp_content_dir))
+
+    return None, f"Successfully packed {input_dir} to {output_file}"
+
+
+def _run_validation(
+    unpacked_dir: Path,
+    original_file: Path,
+    suffix: str,
+    infer_author_func=None,
+) -> tuple[bool, str | None]:
+    output_lines = []
+    validators = []
+
+    if suffix == ".docx":
+        author = "Claude"
+        if infer_author_func:
+            try:
+                author = infer_author_func(unpacked_dir, original_file)
+            except ValueError as e:
+                print(f"Warning: {e} Using default author 'Claude'.", file=sys.stderr)
+
+        validators = [
+            DOCXSchemaValidator(unpacked_dir, original_file),
+            RedliningValidator(unpacked_dir, original_file, author=author),
+        ]
+    elif suffix == ".pptx":
+        validators = [PPTXSchemaValidator(unpacked_dir, original_file)]
+
+    if not validators:
+        return True, None
+
+    total_repairs = sum(v.repair() for v in validators)
+    if total_repairs:
+        output_lines.append(f"Auto-repaired {total_repairs} issue(s)")
+
+    success = all(v.validate() for v in validators)
+
+    if success:
+        output_lines.append("All validations PASSED!")
+
+    return success, "\n".join(output_lines) if output_lines else None
+
+
+def _condense_xml(xml_file: Path) -> None:
+    try:
+        with open(xml_file, encoding="utf-8") as f:
+            dom = defusedxml.minidom.parse(f)
+
+        for element in dom.getElementsByTagName("*"):
+            if element.tagName.endswith(":t"):
+                continue
+
+            for child in list(element.childNodes):
+                if (
+                    child.nodeType == child.TEXT_NODE
+                    and child.nodeValue
+                    and child.nodeValue.strip() == ""
+                ) or child.nodeType == child.COMMENT_NODE:
+                    element.removeChild(child)
+
+        xml_file.write_bytes(dom.toxml(encoding="UTF-8"))
+    except Exception as e:
+        print(f"ERROR: Failed to parse {xml_file.name}: {e}", file=sys.stderr)
+        raise
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(
+        description="Pack a directory into a DOCX, PPTX, or XLSX file"
+    )
+    parser.add_argument("input_directory", help="Unpacked Office document directory")
+    parser.add_argument("output_file", help="Output Office file (.docx/.pptx/.xlsx)")
+    parser.add_argument(
+        "--original",
+        help="Original file for validation comparison",
+    )
+    parser.add_argument(
+        "--validate",
+        type=lambda x: x.lower() == "true",
+        default=True,
+        metavar="true|false",
+        help="Run validation with auto-repair (default: true)",
+    )
+    args = parser.parse_args()
+
+    _, message = pack(
+        args.input_directory,
+        args.output_file,
+        original_file=args.original,
+        validate=args.validate,
+    )
+    print(message)
+
+    if "Error" in message:
+        sys.exit(1)