diff --git a/circuitforge_core/resources/coordinator/__init__.py b/circuitforge_core/resources/coordinator/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/circuitforge_core/resources/coordinator/profile_registry.py b/circuitforge_core/resources/coordinator/profile_registry.py
new file mode 100644
index 0000000..2cdb6f9
--- /dev/null
+++ b/circuitforge_core/resources/coordinator/profile_registry.py
@@ -0,0 +1,62 @@
+# circuitforge_core/resources/coordinator/profile_registry.py
+from __future__ import annotations
+
+import logging
+from pathlib import Path
+
+from circuitforge_core.resources.models import GpuInfo
+from circuitforge_core.resources.profiles.schema import GpuProfile, load_profile
+
+_PUBLIC_DIR = Path(__file__).parent.parent / "profiles" / "public"
+
+# VRAM thresholds for public profile selection (MB)
+_PROFILE_THRESHOLDS = [
+    (22000, "single-gpu-24gb"),
+    (14000, "single-gpu-16gb"),
+    (8000, "single-gpu-8gb"),
+    (5500, "single-gpu-6gb"),
+    (3500, "single-gpu-4gb"),
+    (0, "single-gpu-2gb"),
+]
+
+_log = logging.getLogger(__name__)
+
+
+class ProfileRegistry:
+    def __init__(self, extra_dirs: list[Path] | None = None) -> None:
+        self._profiles: dict[str, GpuProfile] = {}
+        self._load_dir(_PUBLIC_DIR)
+        for d in (extra_dirs or []):
+            if d.exists():
+                self._load_dir(d)
+
+    def _load_dir(self, directory: Path) -> None:
+        for yaml_file in directory.glob("*.yaml"):
+            try:
+                profile = load_profile(yaml_file)
+                self._profiles[profile.name] = profile
+            except Exception as exc:
+                _log.warning("Skipping %s: %s", yaml_file, exc)
+
+    def load(self, path: Path) -> GpuProfile:
+        profile = load_profile(path)
+        self._profiles[profile.name] = profile
+        return profile
+
+    def list_public(self) -> list[GpuProfile]:
+        return [
+            p for p in self._profiles.values()
+            if p.name.startswith("single-gpu-")
+        ]
+
+    def get(self, name: str) -> GpuProfile | None:
+        return self._profiles.get(name)
+
+    def auto_detect(self, gpus: list[GpuInfo]) -> GpuProfile:
+        primary_vram = gpus[0].vram_total_mb if gpus else 0
+        for threshold_mb, profile_name in _PROFILE_THRESHOLDS:
+            if primary_vram >= threshold_mb:
+                profile = self._profiles.get(profile_name)
+                if profile:
+                    return profile
+        return self._profiles["single-gpu-2gb"]
diff --git a/tests/test_resources/test_profile_registry.py b/tests/test_resources/test_profile_registry.py
index 5265bc0..019f203 100644
--- a/tests/test_resources/test_profile_registry.py
+++ b/tests/test_resources/test_profile_registry.py
@@ -51,3 +51,52 @@ def test_service_profile_defaults():
     assert svc.always_on is False
     assert svc.backend is None
     assert svc.consumers == []
+
+
+from unittest.mock import MagicMock
+from circuitforge_core.resources.coordinator.profile_registry import ProfileRegistry
+
+
+def test_profile_registry_loads_public_profiles():
+    registry = ProfileRegistry()
+    profiles = registry.list_public()
+    names = [p.name for p in profiles]
+    assert "single-gpu-8gb" in names
+    assert "single-gpu-6gb" in names
+    assert "single-gpu-2gb" in names
+
+
+def test_profile_registry_auto_detect_selects_8gb():
+    registry = ProfileRegistry()
+    mock_gpus = [
+        MagicMock(vram_total_mb=8192),
+    ]
+    profile = registry.auto_detect(mock_gpus)
+    assert profile.name == "single-gpu-8gb"
+
+
+def test_profile_registry_auto_detect_selects_6gb():
+    registry = ProfileRegistry()
+    mock_gpus = [MagicMock(vram_total_mb=6144)]
+    profile = registry.auto_detect(mock_gpus)
+    assert profile.name == "single-gpu-6gb"
+
+
+def test_profile_registry_auto_detect_selects_2gb():
+    registry = ProfileRegistry()
+    mock_gpus = [MagicMock(vram_total_mb=2048)]
+    profile = registry.auto_detect(mock_gpus)
+    assert profile.name == "single-gpu-2gb"
+
+
+def test_profile_registry_load_from_path(tmp_path):
+    yaml_content = (
+        "schema_version: 1\nname: custom\n"
+        "vram_total_mb: 12288\neviction_timeout_s: 5.0\n"
+    )
+    p = tmp_path / "custom.yaml"
+    p.write_text(yaml_content)
+    registry = ProfileRegistry()
+    profile = registry.load(p)
+    assert profile.name == "custom"
+    assert profile.vram_total_mb == 12288