3 files changed, 74 insertions, 0 deletions
diff --git a/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifest.cs b/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifest.cs
new file mode 100644
index 00000000..6c07d374
--- /dev/null
+++ b/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifest.cs
@@ -0,0 +1,44 @@
+using System.Collections.Generic;
+
+namespace StardewModdingAPI
+{
+    /// <summary>A manifest which describes a mod for SMAPI.</summary>
+    public interface IManifest
+    {
+        /*********
+        ** Accessors
+        *********/
+        /// <summary>The mod name.</summary>
+        string Name { get; }
+
+        /// <summary>A brief description of the mod.</summary>
+        string Description { get; }
+
+        /// <summary>The mod author's name.</summary>
+        string Author { get; }
+
+        /// <summary>The mod version.</summary>
+        ISemanticVersion Version { get; }
+
+        /// <summary>The minimum SMAPI version required by this mod, if any.</summary>
+        ISemanticVersion MinimumApiVersion { get; }
+
+        /// <summary>The unique mod ID.</summary>
+        string UniqueID { get; }
+
+        /// <summary>The name of the DLL in the directory that has the <see cref="IMod.Entry"/> method. Mutually exclusive with <see cref="EntryDll"/>.</summary>
+        string EntryDll { get; }
+
+        /// <summary>The mod which will read this as a content pack. Mutually exclusive with <see cref="EntryDll"/>.</summary>
+        IManifestContentPackFor ContentPackFor { get; }
+
+        /// <summary>The other mods that must be loaded before this mod.</summary>
+        IManifestDependency[] Dependencies { get; }
+
+        /// <summary>The namespaced mod IDs to query for updates (like <c>Nexus:541</c>).</summary>
+        string[] UpdateKeys { get; }
+
+        /// <summary>Any manifest fields which didn't match a valid field.</summary>
+        IDictionary<string, object> ExtraFields { get; }
+    }
+}
diff --git a/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifestContentPackFor.cs b/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifestContentPackFor.cs
new file mode 100644
index 00000000..f05a3873
--- /dev/null
+++ b/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifestContentPackFor.cs
@@ -0,0 +1,12 @@
+namespace StardewModdingAPI
+{
+    /// <summary>Indicates which mod can read the content pack represented by the containing manifest.</summary>
+    public interface IManifestContentPackFor
+    {
+        /// <summary>The unique ID of the mod which can read this content pack.</summary>
+        string UniqueID { get; }
+
+        /// <summary>The minimum required version (if any).</summary>
+        ISemanticVersion MinimumVersion { get; }
+    }
+}
diff --git a/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifestDependency.cs b/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifestDependency.cs
new file mode 100644
index 00000000..e86cd1f4
--- /dev/null
+++ b/src/StardewModdingAPI.Toolkit.CoreInterfaces/IManifestDependency.cs
@@ -0,0 +1,18 @@
+namespace StardewModdingAPI
+{
+    /// <summary>A mod dependency listed in a mod manifest.</summary>
+    public interface IManifestDependency
+    {
+        /*********
+        ** Accessors
+        *********/
+        /// <summary>The unique mod ID to require.</summary>
+        string UniqueID { get; }
+
+        /// <summary>The minimum required version (if any).</summary>
+        ISemanticVersion MinimumVersion { get; }
+
+        /// <summary>Whether the dependency must be installed to use the mod.</summary>
+        bool IsRequired { get; }
+    }
+}