diff --git a/defaults.yaml b/defaults.yaml
index 2c5fc4f..b7b7196 100644
--- a/defaults.yaml
+++ b/defaults.yaml
@@ -4,12 +4,21 @@
 skills:
     claude:
         EdgeBrowser:
+        ExplainPowerShell:
     gemini:
         EdgeBrowser:
+        ExplainPowerShell:
     codex:
         EdgeBrowser:
+        ExplainPowerShell:
     opencode:
         EdgeBrowser:
+        ExplainPowerShell:
+
+agents:
+    MicrosoftAdvisor:
+        model: fast
+        tools: Read, Grep, Glob, Bash
 
 providers:
     claude:
diff --git a/skills/ExplainPowerShell/SKILL.md b/skills/ExplainPowerShell/SKILL.md
new file mode 100644
index 0000000..20c3a91
--- /dev/null
+++ b/skills/ExplainPowerShell/SKILL.md
@@ -0,0 +1,35 @@
+---
+name: ExplainPowerShell
+description: Analyzes and explains the function of a PowerShell script. USE WHEN explaining a PowerShell script, what a script does, or analyzing PS code.
+version: 0.1.1
+---
+
+# ExplainPowerShell
+
+A skill for in-depth analysis and explanation of PowerShell scripts, focusing on clarity, security, and code efficiency.
+
+## Instructions
+
+When analyzing a PowerShell script, follow these steps:
+
+1. **Overall Purpose**: Briefly (1-2 sentences) explain the main goal of the script.
+2. **Block-by-Block Breakdown**: Divide the script into logical parts (functions, loops, command blocks) and explain what each part does.
+3. **Key Parameters and Variables**: Identify important variables and input parameters that affect the script's behavior.
+4. **Security and Risks**: Highlight potentially dangerous operations (data deletion, permission changes, network communication) or missing error handling.
+5. **Recommendations for Improvement**: Suggest how the code could be made more efficient (e.g., better filtering, using modern cmdlets) or better structured.
+
+## Output Format
+
+The explanation should be structured as follows (headings in Czech as per user preference):
+
+- **Souhrn**: What the script does.
+- **Jak to funguje**: Detailed logic breakdown.
+- **Bezpečnostní poznámky**: What to watch out for.
+- **Tipy**: Possible improvements.
+
+## Constraints
+
+- Focus exclusively on PowerShell (Core and Desktop versions).
+- If the script contains unclear or potentially dangerous parts, always explicitly highlight them.
+- **Always communicate in Czech (the user's language)**, even if the code or these instructions are in English.
+- If the script is too long, focus on its main logic and do not list every minor detail that is not critical for its function.
diff --git a/skills/ExplainPowerShell/SKILL.yaml b/skills/ExplainPowerShell/SKILL.yaml
new file mode 100644
index 0000000..79cebeb
--- /dev/null
+++ b/skills/ExplainPowerShell/SKILL.yaml
@@ -0,0 +1,6 @@
+sources:
+    - https://learn.microsoft.com/en-us/powershell/
+
+gemini:
+    argument-hint: "[PS skript nebo cesta k souboru]"
+    user-invocable: true