diff --git a/tools/skills_tool.py b/tools/skills_tool.py
index dcd1f8c5d..6ff54230d 100644
--- a/tools/skills_tool.py
+++ b/tools/skills_tool.py
@@ -507,13 +507,33 @@ def _get_disabled_skill_names() -> Set[str]:
     return get_disabled_skill_names()
 
 
+def _get_session_platform() -> str:
+    """Resolve the current platform from gateway session context.
+
+    Mirrors the platform-resolution logic in
+    ``agent.skill_utils.get_disabled_skill_names`` so that
+    ``_is_skill_disabled`` respects ``HERMES_SESSION_PLATFORM``.
+    """
+    try:
+        from gateway.session_context import get_session_env
+        return get_session_env("HERMES_SESSION_PLATFORM") or ""
+    except Exception:
+        return ""
+
+
 def _is_skill_disabled(name: str, platform: str = None) -> bool:
-    """Check if a skill is disabled in config."""
+    """Check if a skill is disabled in config.
+
+    Resolves the active platform from (in order of precedence):
+    1. Explicit ``platform`` argument
+    2. ``HERMES_PLATFORM`` environment variable
+    3. ``HERMES_SESSION_PLATFORM`` from gateway session context
+    """
     try:
         from hermes_cli.config import load_config
         config = load_config()
         skills_cfg = config.get("skills", {})
-        resolved_platform = platform or os.getenv("HERMES_PLATFORM")
+        resolved_platform = platform or os.getenv("HERMES_PLATFORM") or _get_session_platform()
         if resolved_platform:
             platform_disabled = skills_cfg.get("platform_disabled", {}).get(resolved_platform)
             if platform_disabled is not None: