diff --git a/docforge/__init__.py b/docforge/__init__.py
index 235b37b..3320f8c 100644
--- a/docforge/__init__.py
+++ b/docforge/__init__.py
@@ -7,9 +7,11 @@ until their contracts are finalized.
 """
 
 from .loader import GriffeLoader
+from .renderers import MkDocsRenderer
 from . import model
 
 __all__ = [
     "GriffeLoader",
+    "MkDocsRenderer",
     "model",
 ]
diff --git a/docforge/__init__.pyi b/docforge/__init__.pyi
index b7949cb..9f9d408 100644
--- a/docforge/__init__.pyi
+++ b/docforge/__init__.pyi
@@ -1,4 +1,5 @@
 from .loader import GriffeLoader
+from .renderers import MkDocsRenderer
 from . import model
 
 __all__: list[str]
diff --git a/docforge/renderers/__init__.py b/docforge/renderers/__init__.py
new file mode 100644
index 0000000..a47a055
--- /dev/null
+++ b/docforge/renderers/__init__.py
@@ -0,0 +1,5 @@
+from docforge.renderers.mkdocs import MkDocsRenderer
+
+__all__ = [
+    "MkDocsRenderer",
+]
diff --git a/docforge/renderers/__init__.pyi b/docforge/renderers/__init__.pyi
new file mode 100644
index 0000000..3748a7f
--- /dev/null
+++ b/docforge/renderers/__init__.pyi
@@ -0,0 +1,3 @@
+from docforge.renderers.mkdocs import MkDocsRenderer
+
+__all__ = ["MkDocsRenderer"]
diff --git a/docforge/renderers/base.py b/docforge/renderers/base.py
new file mode 100644
index 0000000..c1d9352
--- /dev/null
+++ b/docforge/renderers/base.py
@@ -0,0 +1,13 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from docforge.model import Project
+
+
+class RendererConfig:
+    """Renderer configuration container."""
+
+    def __init__(self, out_dir: Path, project: Project) -> None:
+        self.out_dir = out_dir
+        self.project = project
diff --git a/docforge/renderers/base.pyi b/docforge/renderers/base.pyi
new file mode 100644
index 0000000..4b2d1e6
--- /dev/null
+++ b/docforge/renderers/base.pyi
@@ -0,0 +1,26 @@
+from pathlib import Path
+from typing import Protocol
+
+from docforge.model import Project
+
+
+class RendererConfig:
+    """Renderer configuration container."""
+
+    out_dir: Path
+    project: Project
+
+    def __init__(self, out_dir: Path, project: Project) -> None: ...
+
+
+class DocRenderer(Protocol):
+    """Renderer interface."""
+
+    name: str
+
+    def generate_sources(
+        self,
+        project: Project,
+        out_dir: Path,
+    ) -> None:
+        """Generate renderer-specific source files."""
diff --git a/docforge/renderers/mkdocs.py b/docforge/renderers/mkdocs.py
new file mode 100644
index 0000000..acd683c
--- /dev/null
+++ b/docforge/renderers/mkdocs.py
@@ -0,0 +1,58 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from docforge.model import Project
+
+
+class MkDocsRenderer:
+    """MkDocs source generator using mkdocstrings."""
+
+    name = "mkdocs"
+
+    def generate_sources(self, project: Project, out_dir: Path) -> None:
+        """
+        Generate Markdown files with mkdocstrings directives.
+
+        Structure rules:
+        - Each top-level package gets a directory
+        - Modules become .md files
+        - Packages (__init__) become index.md
+        """
+        for module in project.get_all_modules():
+            self._write_module(project, module, out_dir)
+
+    # -------------------------
+    # Internal helpers
+    # -------------------------
+
+    def _write_module(self, project: Project, module, out_dir: Path) -> None:
+        parts = module.path.split(".")
+
+        # Root package directory
+        pkg_dir = out_dir / parts[0]
+        pkg_dir.mkdir(parents=True, exist_ok=True)
+
+        # Package (__init__.py) → index.md
+        if module.path == parts[0]:
+            md_path = pkg_dir / "index.md"
+            title = parts[0].replace("_", " ").title()
+        else:
+            # Submodule → <name>.md
+            md_path = pkg_dir / f"{parts[-1]}.md"
+            title = parts[-1].replace("_", " ").title()
+
+        content = self._render_markdown(title, module.path)
+
+        # Idempotent write
+        if md_path.exists():
+            if md_path.read_text(encoding="utf-8") == content:
+                return
+
+        md_path.write_text(content, encoding="utf-8")
+
+    def _render_markdown(self, title: str, module_path: str) -> str:
+        return (
+            f"# {title}\n\n"
+            f"::: {module_path}\n"
+        )
diff --git a/docforge/renderers/mkdocs.pyi b/docforge/renderers/mkdocs.pyi
new file mode 100644
index 0000000..d1b3894
--- /dev/null
+++ b/docforge/renderers/mkdocs.pyi
@@ -0,0 +1,17 @@
+from pathlib import Path
+
+from docforge.model import Project
+from docforge.renderers.base import DocRenderer
+
+
+class MkDocsRenderer:
+    """MkDocs source generator using mkdocstrings."""
+
+    name: str
+
+    def generate_sources(
+        self,
+        project: Project,
+        out_dir: Path,
+    ) -> None:
+        """Generate Markdown files with mkdocstrings directives."""
diff --git a/tests/renderers/__init__.py b/tests/renderers/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/renderers/test_mkdocs_content.py b/tests/renderers/test_mkdocs_content.py
new file mode 100644
index 0000000..1669cd4
--- /dev/null
+++ b/tests/renderers/test_mkdocs_content.py
@@ -0,0 +1,19 @@
+from pathlib import Path
+
+from docforge import MkDocsRenderer
+from docforge.model import Project, Module
+
+
+def test_mkdocs_file_content(tmp_path: Path):
+    project = Project("testpkg")
+    project.add_module(Module("testpkg.mod"))
+
+    out_dir = tmp_path / "docs"
+    renderer = MkDocsRenderer()
+
+    renderer.generate_sources(project, out_dir)
+
+    content = (out_dir / "testpkg" / "mod.md").read_text()
+
+    assert "# Mod" in content
+    assert "::: testpkg.mod" in content
diff --git a/tests/renderers/test_mkdocs_idempotency.py b/tests/renderers/test_mkdocs_idempotency.py
new file mode 100644
index 0000000..755da68
--- /dev/null
+++ b/tests/renderers/test_mkdocs_idempotency.py
@@ -0,0 +1,20 @@
+from pathlib import Path
+
+from docforge import MkDocsRenderer
+from docforge.model import Project, Module
+
+
+def test_mkdocs_idempotent(tmp_path: Path):
+    project = Project("testpkg")
+    project.add_module(Module("testpkg.mod"))
+
+    out_dir = tmp_path / "docs"
+    renderer = MkDocsRenderer()
+
+    renderer.generate_sources(project, out_dir)
+    first = (out_dir / "testpkg" / "mod.md").read_text()
+
+    renderer.generate_sources(project, out_dir)
+    second = (out_dir / "testpkg" / "mod.md").read_text()
+
+    assert first == second
diff --git a/tests/renderers/test_mkdocs_structure.py b/tests/renderers/test_mkdocs_structure.py
new file mode 100644
index 0000000..d177b1f
--- /dev/null
+++ b/tests/renderers/test_mkdocs_structure.py
@@ -0,0 +1,18 @@
+from pathlib import Path
+
+from docforge import MkDocsRenderer
+from docforge.model import Project, Module
+
+
+def test_mkdocs_directory_structure(tmp_path: Path):
+    project = Project("testpkg")
+    project.add_module(Module("testpkg"))
+    project.add_module(Module("testpkg.sub"))
+
+    out_dir = tmp_path / "docs"
+    renderer = MkDocsRenderer()
+
+    renderer.generate_sources(project, out_dir)
+
+    assert (out_dir / "testpkg" / "index.md").exists()
+    assert (out_dir / "testpkg" / "sub.md").exists()