5 files changed, 60 insertions, 0 deletions
diff --git a/examples/plain_ruby/Justfile b/examples/plain_ruby/Justfile
index c758519..a4528ce 100644
--- a/examples/plain_ruby/Justfile
+++ b/examples/plain_ruby/Justfile
@@ -9,3 +9,15 @@ dry:
 # Verbose output
 debug:
     ruby config.rb --debug
+
+# Apply the agent-backed example
+agents:
+    ruby agents.rb
+
+# Dry run the agent-backed example
+agents-dry:
+    ruby agents.rb --dry
+
+# Verbose output for the agent-backed example
+agents-debug:
+    ruby agents.rb --debug
diff --git a/examples/plain_ruby/README.md b/examples/plain_ruby/README.md
index 7208317..464d537 100644
--- a/examples/plain_ruby/README.md
+++ b/examples/plain_ruby/README.md
@@ -13,6 +13,10 @@ ruby config.rb --debug
 
 # Apply configuration
 ruby config.rb
+
+# Agent-backed file processing example
+ruby agents.rb --dry
+ruby agents.rb
 ```
 
 ## What it does
@@ -20,3 +24,4 @@ ruby config.rb
 - Creates `/tmp/example/hello.txt` with static content (parent directory created automatically)
 - Ensures the line `127.0.0.1 localhost` is present in `/tmp/example/hosts.txt`
 - Creates `/tmp/example/greeting.txt` from an inline ERB template
+- `agents.rb` drafts `/tmp/example/notes.txt` and then runs it through `hexai` with a prompt that fixes English grammar and clarity
diff --git a/examples/plain_ruby/agents.rb b/examples/plain_ruby/agents.rb
new file mode 100755
index 0000000..e04da98
--- /dev/null
+++ b/examples/plain_ruby/agents.rb
@@ -0,0 +1,40 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+# Example: Plain Ruby script using agent-backed file processing.
+#
+# Run with:
+#   ruby agents.rb --dry      # dry run, no changes made
+#   ruby agents.rb --debug    # verbose output
+#   ruby agents.rb            # apply configuration
+#
+# Requires rcm to be installed as a gem, or adjust the path below:
+#   require_relative '../../lib/dsl'
+begin
+  require 'rcm'
+rescue LoadError
+  require_relative '../../lib/dsl'
+end
+
+configure do
+  agent hexai do
+    'hexai PROMPT'
+  end
+
+  prompt fix english do
+    'Correct English spellings and grammar. Improve clarity of the text. Dont introduce any new text or headers'
+  end
+
+  # Draft a rough note, then let hexai polish the language in place.
+  file example notes draft do
+    path 'agents_example.txt'
+    manage directory
+    'this are a short note with bad english and unclear wording.'
+  end
+
+  file example notes polished do
+    path 'agents_example.txt'
+    requires file example notes draft
+    agent hexai fix english
+  end
+end
diff --git a/examples/plain_ruby/agents_example.txt b/examples/plain_ruby/agents_example.txt
new file mode 100644
index 0000000..1285e52
--- /dev/null
+++ b/examples/plain_ruby/agents_example.txt
@@ -0,0 +1 @@
+This is a short note with poor English and unclear wording.
+\ No newline at end of file
diff --git a/examples/plain_ruby/config.rb b/examples/plain_ruby/config.rb
index c730c05..93061c2 100755
--- a/examples/plain_ruby/config.rb
+++ b/examples/plain_ruby/config.rb
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 # Example: Plain Ruby script — no Rake, no bundler required.
 #
 # Run with: