feat: add OpenProse plugin skills

extensions/open-prose/skills/prose/examples/28-automated-pr-review.prose

@@ -0,0 +1,37 @@
+# Automated PR Review Workflow
+# This workflow performs a multi-dimensional review of a codebase changes.
+
+agent reviewer:
+  model: sonnet
+  prompt: "You are an expert software engineer specializing in code reviews."
+
+agent security_expert:
+  model: opus
+  prompt: "You are a security researcher specializing in finding vulnerabilities."
+
+agent performance_expert:
+  model: sonnet
+  prompt: "You are a performance engineer specializing in optimization."
+
+# 1. Initial overview
+let overview = session: reviewer
+  prompt: "Read the changes in the current directory and provide a high-level summary of the architectural impact."
+
+# 2. Parallel deep-dive reviews
+parallel:
+  security = session: security_expert
+    prompt: "Perform a deep security audit of the changes. Look for OWASP top 10 issues."
+    context: overview
+  
+  perf = session: performance_expert
+    prompt: "Analyze the performance implications. Identify potential bottlenecks or regressions."
+    context: overview
+  
+  style = session: reviewer
+    prompt: "Review for code style, maintainability, and adherence to best practices."
+    context: overview
+
+# 3. Synthesis and final recommendation
+session: reviewer
+  prompt: "Synthesize the security, performance, and style reviews into a final PR comment. Provide a clear 'Approve', 'Request Changes', or 'Comment' recommendation."
+  context: { security, perf, style, overview }