docs(readme): improve intro

README.md

@@ -1,17 +1,18 @@
 # stone-agent
 
-This repository contains a crude decryption agent for
-[age](https://github.com/FiloSottile/age)
-inspired by
+This repository houses **stone-agent**, a crude version of
 [ssh-agent](https://en.wikipedia.org/wiki/Ssh-agent)
-and
-[gpg-agent](https://www.gnupg.org/documentation/manuals/gnupg/Invoking-GPG_002dAGENT.html).
+or
+[gpg-agent](https://www.gnupg.org/documentation/manuals/gnupg/Invoking-GPG_002dAGENT.html)
+made by a third party for
+[age](https://github.com/FiloSottile/age).
+The agent only performs decryption.
 It is meant as a proof of concept for password managers based on age and shell.
-Bugs and security vulnerabilities are to be expected.
+Bugs and security vulnerabilities are expected.
 
-The agent uses a private key given on launch to decrypt anything sent through a Unix domain socket.
+stone-agent uses a private key given on launch to take anything sent to a Unix domain socket and send it back decrypted.
 It keeps the private key in memory and passes it to `age -d -i` using Bash process substitution.
-It does not report errors to the socket user.
+It does not report errors to the user accessing it directly through the socket or through `stone-agent decrypt`.
 
 ## Requirements