diff --git a/README.md b/README.md
index 2daa77f..d320e96 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,9 @@ To learn more about the contents of this repository, see this README and the REA
 
 ### Packages
 
-- [`content-type-remote-attachment`](packages/content-type-remote-attachment): This package provides a remote attachment content type.
+- [`content-type-remote-attachment`](packages/content-type-remote-attachment)
+- [`content-type-reaction`](packages/content-type-reaction)
+- [`content-type-reply`](packages/content-type-reply)
 
 ## Requirements
 
diff --git a/packages/content-type-reaction/README.md b/packages/content-type-reaction/README.md
index 23c5a85..76831ef 100644
--- a/packages/content-type-reaction/README.md
+++ b/packages/content-type-reaction/README.md
@@ -2,6 +2,9 @@
 
 This package provides an XMTP content type to support reactions to messages.
 
+> **Open for feedback**  
+> You are welcome to provide feedback on this implementation by commenting on the [Reaction Content Type XIP](https://github.com/xmtp/XIPs/pull/23) (XMTP Improvement Proposal).
+
 ## What’s a reaction?
 
 A reaction is a quick and often emoji-based way to respond to a message. Reactions are usually limited to a predefined set of emojis or symbols provided by the messaging app.
diff --git a/packages/content-type-remote-attachment/README.md b/packages/content-type-remote-attachment/README.md
index cb13e2d..9965b0b 100644
--- a/packages/content-type-remote-attachment/README.md
+++ b/packages/content-type-remote-attachment/README.md
@@ -2,6 +2,9 @@
 
 The [remote-attachment](https://github.com/xmtp/xmtp-js-content-types/tree/main/remote-attachment) package provides an XMTP content type to support sending file attachments that are stored off-network. Use it to enable your app to send and receive message attachments.
 
+> **Open for feedback**  
+> You are welcome to provide feedback on this implementation by commenting on the [Remote Attachment Content Type XIP](https://github.com/xmtp/XIPs/blob/main/XIPs/xip-17-remote-attachment-content-type-proposal.md) (XMTP Improvement Proposal).
+
 ## What’s an attachment?
 
 Attachments are files. More specifically, attachments are objects that have:
diff --git a/packages/content-type-reply/README.md b/packages/content-type-reply/README.md
index 3579fa4..ff53de4 100644
--- a/packages/content-type-reply/README.md
+++ b/packages/content-type-reply/README.md
@@ -2,6 +2,9 @@
 
 This package provides an XMTP content type to support direct replies to messages.
 
+> **Open for feedback**  
+> You are welcome to provide feedback on this implementation by commenting on the [Reply Content Type XIP](https://github.com/xmtp/XIPs/pull/22) (XMTP Improvement Proposal).
+
 ## What’s a reply?
 
 A reply action is a way to respond directly to a specific message in a conversation. Instead of sending a new message, users can select and reply to a particular message.