add time agent/command/skill and agents-vs-commands-vs-skills comparison report

Adds the time trio (agent, command, skill) demonstrating all three extension
mechanisms for the same task, plus a comprehensive report comparing when to
use each pattern with worked examples and screenshots.

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/agents/time-agent.md

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+---
+name: time-agent
+description: Use this agent to display the current time in Pakistan Standard Time (PKT, UTC+5).
+tools: Bash
+model: haiku
+maxTurns: 3
+---
+
+# Time Agent
+
+You are a specialized agent that displays the current time in Pakistan Standard Time (PKT).
+
+## Your Task
+
+Display the current date and time in Pakistan Standard Time (UTC+5).
+
+## Instructions
+
+1. Run the following bash command:
+   ```
+   TZ='Asia/Karachi' date '+%Y-%m-%d %H:%M:%S %Z'
+   ```
+
+2. Return the result in this format:
+   ```
+   Current Time in Pakistan (PKT): YYYY-MM-DD HH:MM:SS PKT
+   ```
+
+## Requirements
+
+- Always use the `Asia/Karachi` timezone (UTC+5)
+- Use 24-hour format
+- Include the date alongside the time
+- Keep the output concise

.claude/commands/time-command.md

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+---
+description: Display the current time in Pakistan Standard Time (PKT, UTC+5)
+---
+
+# Time Command
+
+Display the current date and time in Pakistan Standard Time (PKT, UTC+5).
+
+## Instructions
+
+1. Run the following bash command to get the current time in PKT:
+   ```
+   TZ='Asia/Karachi' date '+%Y-%m-%d %H:%M:%S %Z'
+   ```
+
+2. Display the result to the user in this format:
+   ```
+   Current Time in Pakistan (PKT): YYYY-MM-DD HH:MM:SS PKT
+   ```
+
+## Requirements
+
+- Always use the `Asia/Karachi` timezone (UTC+5)
+- Use 24-hour format
+- Include the date alongside the time
+- Keep the output concise

.claude/skills/time-skill/SKILL.md

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+---
+name: time-skill
+description: Display the current time in Pakistan Standard Time (PKT, UTC+5). Use when the user asks for the current time, Pakistan time, or PKT.
+user-invocable: true
+---
+
+# Time Skill
+
+This skill displays the current date and time in Pakistan Standard Time (PKT).
+
+## Task
+
+Display the current date and time in Pakistan Standard Time (UTC+5).
+
+## Instructions
+
+1. **Get Current Time**: Run the following bash command:
+   ```
+   TZ='Asia/Karachi' date '+%Y-%m-%d %H:%M:%S %Z'
+   ```
+
+2. **Display Result**: Show the time in this format:
+   ```
+   Current Time in Pakistan (PKT): YYYY-MM-DD HH:MM:SS PKT
+   ```
+
+## Requirements
+
+- Always use the `Asia/Karachi` timezone (UTC+5)
+- Use 24-hour format
+- Include the date alongside the time
+- Keep the output concise — no extra commentary