diff --git a/smithy-aws-protocol-tests/model/awsJson1_1/datetime-offsets.smithy b/smithy-aws-protocol-tests/model/awsJson1_1/datetime-offsets.smithy
index 9da83c54a0f..61018d5c166 100644
--- a/smithy-aws-protocol-tests/model/awsJson1_1/datetime-offsets.smithy
+++ b/smithy-aws-protocol-tests/model/awsJson1_1/datetime-offsets.smithy
@@ -9,7 +9,6 @@ use smithy.test#httpResponseTests
 // These tests are for verifying the client can correctly parse
 // the `DateTime` timestamp with an offset
 @tags(["client-only"])
-@http(uri: "/DatetimeOffsets", method: "POST")
 operation DatetimeOffsets {
     output: DatetimeOffsetsOutput
 }
diff --git a/smithy-aws-protocol-tests/model/awsJson1_1/fractional-seconds.smithy b/smithy-aws-protocol-tests/model/awsJson1_1/fractional-seconds.smithy
index 8120cdf9e16..046bf9d8943 100644
--- a/smithy-aws-protocol-tests/model/awsJson1_1/fractional-seconds.smithy
+++ b/smithy-aws-protocol-tests/model/awsJson1_1/fractional-seconds.smithy
@@ -10,7 +10,6 @@ use smithy.test#httpResponseTests
 // These tests are for verifying the client can correctly parse
 // the `DateTime` and `HttpDate` timestamps with fractional seconds
 @tags(["client-only"])
-@http(uri: "/FractionalSeconds", method: "POST")
 operation FractionalSeconds {
     output: FractionalSecondsOutput
 }
diff --git a/smithy-aws-protocol-tests/model/restJson1/http-accept.smithy b/smithy-aws-protocol-tests/model/restJson1/http-accept.smithy
index b21f3ec2814..2f2f49e941d 100644
--- a/smithy-aws-protocol-tests/model/restJson1/http-accept.smithy
+++ b/smithy-aws-protocol-tests/model/restJson1/http-accept.smithy
@@ -6,7 +6,7 @@ use aws.protocols#restJson1
 use smithy.test#httpRequestTests
 use smithy.test#httpResponseTests
 
-@idempotent
+@readonly
 @http(method: "GET", uri: "/test-accept-header")
 @documentation("Service accepts `*` in ACCEPT header")
 @httpRequestTests([