diff --git a/schema-docs.md b/schema-docs.md
index f8ab0d6e..ec2b5250 100644
--- a/schema-docs.md
+++ b/schema-docs.md
@@ -270,14 +270,14 @@ This is a enum type.
 
 | Value | Description |
 |---|---|
-| `bool` | TODO |
-| `bool_array` | TODO |
-| `double` | TODO |
-| `double_array` | TODO |
-| `int` | TODO |
-| `int_array` | TODO |
-| `string` | TODO |
-| `string_array` | TODO |
+| `bool` | Boolean attribute value. |
+| `bool_array` | Boolean array attribute value. |
+| `double` | Double attribute value. |
+| `double_array` | Double array attribute value. |
+| `int` | Integer attribute value. |
+| `int_array` | Integer array attribute value. |
+| `string` | String attribute value. |
+| `string_array` | String array attribute value. |
 
 <details>
 <summary>Language support status</summary>
@@ -845,9 +845,9 @@ This is a enum type.
 
 | Value | Description |
 |---|---|
-| `always_off` | TODO |
-| `always_on` | TODO |
-| `trace_based` | TODO |
+| `always_off` | ExemplarFilter which makes no measurements eligible for being an Exemplar. |
+| `always_on` | ExemplarFilter which makes all measurements eligible for being an Exemplar. |
+| `trace_based` | ExemplarFilter which makes measurements recorded in the context of a sampled parent span eligible for being an Exemplar. |
 
 <details>
 <summary>Language support status</summary>
@@ -983,9 +983,9 @@ This is a enum type.
 
 | Value | Description |
 |---|---|
-| `cumulative` | TODO |
-| `delta` | TODO |
-| `low_memory` | TODO |
+| `cumulative` | Use cumulative aggregation temporality for all instrument types. |
+| `delta` | Use delta aggregation for all instrument types except up down counter and asynchronous up down counter. |
+| `low_memory` | Use delta aggregation temporality for counter and histogram instrument types. Use cumulative aggregation temporality for all other instrument types. |
 
 <details>
 <summary>Language support status</summary>
@@ -1209,13 +1209,13 @@ This is a enum type.
 
 | Value | Description |
 |---|---|
-| `counter` | TODO |
-| `gauge` | TODO |
-| `histogram` | TODO |
-| `observable_counter` | TODO |
-| `observable_gauge` | TODO |
-| `observable_up_down_counter` | TODO |
-| `up_down_counter` | TODO |
+| `counter` | Synchronous counter instruments. |
+| `gauge` | Synchronous gauge instruments. |
+| `histogram` | Synchronous histogram instruments. |
+| `observable_counter` | Asynchronous counter instruments. |
+| `observable_gauge` | Asynchronous gauge instruments. |
+| `observable_up_down_counter` | Asynchronous up down counter instruments. |
+| `up_down_counter` | Synchronous up down counter instruments. |
 
 <details>
 <summary>Language support status</summary>
diff --git a/schema/meter_provider.yaml b/schema/meter_provider.yaml
index 5ebbdd8e..3c1ca58d 100644
--- a/schema/meter_provider.yaml
+++ b/schema/meter_provider.yaml
@@ -39,9 +39,9 @@ $defs:
       - always_off
       - trace_based
     enumDescriptions:
-      always_off: TODO
-      always_on: TODO
-      trace_based: TODO
+      always_off: ExemplarFilter which makes no measurements eligible for being an Exemplar.
+      always_on: ExemplarFilter which makes all measurements eligible for being an Exemplar.
+      trace_based: ExemplarFilter which makes measurements recorded in the context of a sampled parent span eligible for being an Exemplar.
   PeriodicMetricReader:
     type: object
     additionalProperties: false
@@ -319,9 +319,9 @@ $defs:
       - delta
       - low_memory
     enumDescriptions:
-      cumulative: TODO
-      delta: TODO
-      low_memory: TODO
+      cumulative: Use cumulative aggregation temporality for all instrument types.
+      delta: Use delta aggregation for all instrument types except up down counter and asynchronous up down counter.
+      low_memory: Use delta aggregation temporality for counter and histogram instrument types. Use cumulative aggregation temporality for all other instrument types.
   ExporterDefaultHistogramAggregation:
     type:
       - string
@@ -581,13 +581,13 @@ $defs:
       - observable_up_down_counter
       - up_down_counter
     enumDescriptions:
-      counter: TODO
-      gauge: TODO
-      histogram: TODO
-      observable_counter: TODO
-      observable_gauge: TODO
-      observable_up_down_counter: TODO
-      up_down_counter: TODO
+      counter: Synchronous counter instruments.
+      gauge: Synchronous gauge instruments.
+      histogram: Synchronous histogram instruments.
+      observable_counter: Asynchronous counter instruments.
+      observable_gauge: Asynchronous gauge instruments.
+      observable_up_down_counter: Asynchronous up down counter instruments.
+      up_down_counter: Synchronous up down counter instruments.
   ViewStream:
     type: object
     additionalProperties: false
diff --git a/schema/resource.yaml b/schema/resource.yaml
index 7216256f..b7aff864 100644
--- a/schema/resource.yaml
+++ b/schema/resource.yaml
@@ -82,14 +82,14 @@ $defs:
       - int_array
       - double_array
     enumDescriptions:
-      bool: TODO
-      bool_array: TODO
-      double: TODO
-      double_array: TODO
-      int: TODO
-      int_array: TODO
-      string: TODO
-      string_array: TODO
+      bool: Boolean attribute value.
+      bool_array: Boolean array attribute value.
+      double: Double attribute value.
+      double_array: Double array attribute value.
+      int: Integer attribute value.
+      int_array: Integer array attribute value.
+      string: String attribute value.
+      string_array: String array attribute value.
   ExperimentalResourceDetection:
     type: object
     additionalProperties: false