diff --git a/app/__init__.py b/app/__init__.py
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diff --git a/app/main.py b/app/main.py
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+++ b/app/main.py
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+from fastapi import FastAPI
+from fastapi.staticfiles import StaticFiles
+
+from app.routes import doc_generator
+
+app = FastAPI(title="Utility App")
+
+app.mount("/static", StaticFiles(directory="static"), name="static")
+
+app.include_router(doc_generator.router, prefix="/api/doc-generator", tags=["doc-generator"])
+
+
+@app.get("/")
+def index():
+    from fastapi.responses import FileResponse
+    return FileResponse("static/index.html")
diff --git a/app/models/__init__.py b/app/models/__init__.py
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diff --git a/app/routes/__init__.py b/app/routes/__init__.py
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diff --git a/app/services/__init__.py b/app/services/__init__.py
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diff --git a/app/utils/__init__.py b/app/utils/__init__.py
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diff --git a/archive/.gitkeep b/archive/.gitkeep
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diff --git a/diagnostics/.gitkeep b/diagnostics/.gitkeep
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diff --git a/exports/.gitkeep b/exports/.gitkeep
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diff --git a/logs/.gitkeep b/logs/.gitkeep
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diff --git a/outputs/.gitkeep b/outputs/.gitkeep
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diff --git a/scripts/.gitkeep b/scripts/.gitkeep
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diff --git a/settings/.gitkeep b/settings/.gitkeep
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diff --git a/static/.gitkeep b/static/.gitkeep
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diff --git a/tests/.gitkeep b/tests/.gitkeep
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diff --git a/tools/.gitkeep b/tools/.gitkeep
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diff --git a/tools/doc_generator/content/document_types/engineering_report.json b/tools/doc_generator/content/document_types/engineering_report.json
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+++ b/tools/doc_generator/content/document_types/engineering_report.json
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+{
+  "id": "engineering_report",
+  "name": "Engineering Report",
+  "description": "General engineering report generated from a Word template.",
+  "template": "engineering_report.docx",
+  "outputFilename": "engineering_report_{projectName}_{timestamp_YYYY-MM-DD_HH-mm-ss}.docx",
+  "fields": [
+    {"name": "projectName", "label": "Project Name", "type": "text", "required": true},
+    {"name": "preparedBy", "label": "Prepared By", "type": "text", "required": false},
+    {"name": "summary", "label": "Summary", "type": "textarea", "required": false}
+  ]
+}
diff --git a/tools/doc_generator/content/templates/engineering_report.docx b/tools/doc_generator/content/templates/engineering_report.docx
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index 0000000..4ccd264
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diff --git a/tools/doc_generator/logic/__init__.py b/tools/doc_generator/logic/__init__.py
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diff --git a/tools/doc_generator/logic/core_fields.py b/tools/doc_generator/logic/core_fields.py
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+++ b/tools/doc_generator/logic/core_fields.py
@@ -0,0 +1,22 @@
+import pendulum
+
+
+def get_core_fields() -> dict:
+    now = pendulum.now()
+
+    return {
+        "date": now.format("MMMM Do, YYYY"),
+        "time": now.format("h:mm A"),
+        "timestamp": now.format("MMMM Do, YYYY h:mm A"),
+        "date_YYYY-MM-DD": now.format("YYYY-MM-DD"),
+        "date_MM-DD-YYYY": now.format("MM-DD-YYYY"),
+        "timestamp_YYYY-MM-DD_HH-mm-ss": now.format("YYYY-MM-DD_HH-mm-ss"),
+    }
+
+
+def merge_core_fields(data: dict) -> dict:
+    # App-owned core fields win over submitted form values.
+    return {
+        **data,
+        **get_core_fields(),
+    }
diff --git a/tools/doc_generator/logic/document_types.py b/tools/doc_generator/logic/document_types.py
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+++ b/tools/doc_generator/logic/document_types.py
@@ -0,0 +1,25 @@
+import json
+from pathlib import Path
+
+BASE_DIR = Path(__file__).resolve().parent.parent
+CONTENT_DIR = BASE_DIR / "content"
+DOCUMENT_TYPES_DIR = CONTENT_DIR / "document_types"
+
+
+def list_document_types():
+    document_types = []
+
+    for path in sorted(DOCUMENT_TYPES_DIR.glob("*.json")):
+        data = json.loads(path.read_text(encoding="utf-8"))
+        document_types.append(data)
+
+    return document_types
+
+
+def get_document_type(document_type_id: str):
+    path = DOCUMENT_TYPES_DIR / f"{document_type_id}.json"
+
+    if not path.exists():
+        raise FileNotFoundError(f"Document type not found: {document_type_id}")
+
+    return json.loads(path.read_text(encoding="utf-8"))
diff --git a/tools/doc_generator/logic/renderer.py b/tools/doc_generator/logic/renderer.py
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--- /dev/null
+++ b/tools/doc_generator/logic/renderer.py
@@ -0,0 +1,90 @@
+import re
+from pathlib import Path
+
+from docx import Document
+
+from tools.doc_generator.logic.core_fields import merge_core_fields
+from tools.doc_generator.logic.document_types import get_document_type
+
+BASE_DIR = Path(__file__).resolve().parent.parent
+CONTENT_DIR = BASE_DIR / "content"
+TEMPLATES_DIR = CONTENT_DIR / "templates"
+PROJECT_ROOT = BASE_DIR.parent.parent
+EXPORTS_DIR = PROJECT_ROOT / "exports"
+
+
+def safe_filename(value: str) -> str:
+    value = str(value or "document").strip()
+    value = re.sub(r"[^A-Za-z0-9._ -]+", "", value)
+    value = re.sub(r"\s+", "_", value)
+    return value or "document"
+
+
+def render_filename(pattern: str, data: dict) -> str:
+    filename = pattern
+
+    for key, value in data.items():
+        filename = filename.replace("{" + key + "}", safe_filename(value))
+
+    return safe_filename(filename)
+
+
+def replace_placeholders_in_paragraph(paragraph, data: dict):
+    full_text = "".join(run.text for run in paragraph.runs)
+
+    new_text = full_text
+    for key, value in data.items():
+        new_text = new_text.replace("{" + key + "}", "" if value is None else str(value))
+
+    if new_text == full_text:
+        return
+
+    for run in paragraph.runs:
+        run.text = ""
+
+    if paragraph.runs:
+        paragraph.runs[0].text = new_text
+    else:
+        paragraph.add_run(new_text)
+
+
+def replace_placeholders_in_table(table, data: dict):
+    for row in table.rows:
+        for cell in row.cells:
+            for paragraph in cell.paragraphs:
+                replace_placeholders_in_paragraph(paragraph, data)
+
+            for nested_table in cell.tables:
+                replace_placeholders_in_table(nested_table, data)
+
+
+def generate_docx(document_type_id: str, data: dict) -> Path:
+    data = merge_core_fields(data)
+    document_type = get_document_type(document_type_id)
+
+    template_path = TEMPLATES_DIR / document_type["template"]
+
+    if not template_path.exists():
+        raise FileNotFoundError(f"Template not found: {template_path}")
+
+    EXPORTS_DIR.mkdir(parents=True, exist_ok=True)
+
+    output_pattern = document_type.get("outputFilename", f"{document_type_id}.docx")
+    output_filename = render_filename(output_pattern, data)
+
+    if not output_filename.lower().endswith(".docx"):
+        output_filename += ".docx"
+
+    output_path = EXPORTS_DIR / output_filename
+
+    document = Document(template_path)
+
+    for paragraph in document.paragraphs:
+        replace_placeholders_in_paragraph(paragraph, data)
+
+    for table in document.tables:
+        replace_placeholders_in_table(table, data)
+
+    document.save(output_path)
+
+    return output_path