diff --git a/compiler/crates/relay-compiler/relay-compiler-config-schema.json b/compiler/crates/relay-compiler/relay-compiler-config-schema.json
index b2dbcfc1f8e27..e833427feaff6 100644
--- a/compiler/crates/relay-compiler/relay-compiler-config-schema.json
+++ b/compiler/crates/relay-compiler/relay-compiler-config-schema.json
@@ -1577,8 +1577,10 @@
           "default": null,
           "anyOf": [
             {
+              "description": "Configuration for how the Relay Compiler should persist GraphQL queries.",
               "anyOf": [
                 {
+                  "description": "This variant represents a remote persistence configuration, where GraphQL queries are sent to a remote endpoint for persistence.",
                   "type": "object",
                   "required": [
                     "url"
@@ -1621,6 +1623,7 @@
                   "additionalProperties": false
                 },
                 {
+                  "description": "This variant represents a local persistence configuration, where GraphQL queries are persisted to a local JSON file.\n\nWhen this variant is used, the compiler will attempt to read the local file as a hash map, add new queries to the map, and then serialize and write the resulting map to the configured path.",
                   "type": "object",
                   "required": [
                     "file"
@@ -3354,11 +3357,14 @@
             "description": "Set of project names.",
             "type": "array",
             "items": {
+              "description": "Represents the name of a project in the Relay configuration.",
               "anyOf": [
                 {
+                  "description": "No project name is specified.",
                   "type": "null"
                 },
                 {
+                  "description": "A project name.\n\nThis should match one the keys in the `projects` map in the Relay compiler config.",
                   "type": "string"
                 }
               ]
@@ -3408,11 +3414,14 @@
                 "default": null,
                 "anyOf": [
                   {
+                    "description": "Represents the name of a project in the Relay configuration.",
                     "anyOf": [
                       {
+                        "description": "No project name is specified.",
                         "type": "null"
                       },
                       {
+                        "description": "A project name.\n\nThis should match one the keys in the `projects` map in the Relay compiler config.",
                         "type": "string"
                       }
                     ]
@@ -5018,8 +5027,10 @@
                 "description": "If this option is set, the compiler will persist queries using this config.",
                 "anyOf": [
                   {
+                    "description": "Configuration for how the Relay Compiler should persist GraphQL queries.",
                     "anyOf": [
                       {
+                        "description": "This variant represents a remote persistence configuration, where GraphQL queries are sent to a remote endpoint for persistence.",
                         "type": "object",
                         "required": [
                           "url"
@@ -5062,6 +5073,7 @@
                         "additionalProperties": false
                       },
                       {
+                        "description": "This variant represents a local persistence configuration, where GraphQL queries are persisted to a local JSON file.\n\nWhen this variant is used, the compiler will attempt to read the local file as a hash map, add new queries to the map, and then serialize and write the resulting map to the configured path.",
                         "type": "object",
                         "required": [
                           "file"
@@ -5460,11 +5472,14 @@
           "additionalProperties": {
             "anyOf": [
               {
+                "description": "Represents the name of a project in the Relay configuration.",
                 "anyOf": [
                   {
+                    "description": "No project name is specified.",
                     "type": "null"
                   },
                   {
+                    "description": "A project name.\n\nThis should match one the keys in the `projects` map in the Relay compiler config.",
                     "type": "string"
                   }
                 ]
@@ -5472,11 +5487,14 @@
               {
                 "type": "array",
                 "items": {
+                  "description": "Represents the name of a project in the Relay configuration.",
                   "anyOf": [
                     {
+                      "description": "No project name is specified.",
                       "type": "null"
                     },
                     {
+                      "description": "A project name.\n\nThis should match one the keys in the `projects` map in the Relay compiler config.",
                       "type": "string"
                     }
                   ]
diff --git a/compiler/crates/relay-compiler/src/artifact_map.rs b/compiler/crates/relay-compiler/src/artifact_map.rs
index 4c17341a72838..f2601065ab92e 100644
--- a/compiler/crates/relay-compiler/src/artifact_map.rs
+++ b/compiler/crates/relay-compiler/src/artifact_map.rs
@@ -29,13 +29,16 @@ pub struct ArtifactRecord {
 #[derive(Default, Serialize, Deserialize, Debug, Clone)]
 pub struct ArtifactMap(pub DashMap<ArtifactSourceKey, Vec<ArtifactRecord>>);
 
+/// An enum used to identify the source type a relay compiler artifact is generated from.
+///
+/// Artifacts can be derived from source types such as executable definitions, resolvers, or schemas.
 #[derive(Serialize, Deserialize, Debug, Clone, Eq, PartialEq, Hash)]
 pub enum ArtifactSourceKey {
-    /// Derieved from a GraphQL Executable Definition
+    /// Derived from a GraphQL Executable Definition, such as a Query, Mutation, or Fragment.
     ExecutableDefinition(ExecutableDefinitionName),
-    /// Derieved from a RelayResolver docblock
+    /// Derived from a RelayResolver docblock.
     ResolverHash(ResolverSourceHash),
-    /// Derived from GraphQL Schema
+    /// Derived from GraphQL Schema.
     Schema(),
 }
 
diff --git a/compiler/crates/relay-config/src/project_config.rs b/compiler/crates/relay-config/src/project_config.rs
index 4f85ab11ecd0b..3bc11c0590385 100644
--- a/compiler/crates/relay-config/src/project_config.rs
+++ b/compiler/crates/relay-config/src/project_config.rs
@@ -108,10 +108,16 @@ pub struct LocalPersistConfig {
     pub include_query_text: bool,
 }
 
+/// Configuration for how the Relay Compiler should persist GraphQL queries.
 #[derive(Debug, Serialize, Clone, JsonSchema)]
 #[serde(untagged)]
 pub enum PersistConfig {
+    /// This variant represents a remote persistence configuration, where GraphQL queries are sent to a remote endpoint for persistence.
     Remote(RemotePersistConfig),
+    /// This variant represents a local persistence configuration, where GraphQL queries are persisted to a local JSON file.
+    ///
+    /// When this variant is used, the compiler will attempt to read the local file as a hash map,
+    /// add new queries to the map, and then serialize and write the resulting map to the configured path.
     Local(LocalPersistConfig),
 }
 
@@ -157,9 +163,12 @@ It also cannot be a local persist configuration due to:
     }
 }
 
+/// Specifies the type of location of a GraphQL schema, and the path to the schema location.
 #[derive(Clone, Debug, JsonSchema)]
 pub enum SchemaLocation {
+    /// A single file containing the schema.
     File(PathBuf),
+    /// A directory containing multiple schema files.
     Directory(PathBuf),
 }
 
diff --git a/compiler/crates/relay-config/src/project_name.rs b/compiler/crates/relay-config/src/project_name.rs
index f5c6dd6d7ec56..8b384556b2fc5 100644
--- a/compiler/crates/relay-config/src/project_name.rs
+++ b/compiler/crates/relay-config/src/project_name.rs
@@ -16,10 +16,15 @@ use serde::Deserializer;
 use serde::Serialize;
 use serde::Serializer;
 
+/// Represents the name of a project in the Relay configuration.
 #[derive(Debug, Clone, Copy, Hash, PartialEq, Eq, JsonSchema, Ord, PartialOrd)]
 #[schemars(untagged)]
 pub enum ProjectName {
+    /// No project name is specified.
     Default,
+    /// A project name.
+    ///
+    /// This should match one the keys in the `projects` map in the Relay compiler config.
     Named(StringKey),
 }