Here are a few options for a WordPress post tag description for “關鍵技能” (Crucial Skills) in Traditional Chinese, tailored to different purposes:

**Option 1: General & Concise**

> 掌握成功的關鍵。包含所有能幫助你提升工作表現、增加職業競爭力、與實現個人目標的重要能力。
>
> *Translation: Mastering the key to success. Includes all important abilities that can help you enhance your job performance, increase your professional competitiveness, and achieve your personal goals.*

* **Suitable for:** Broad categorization, general audience.

**Option 2: Emphasizing Practical Skills**

> 實用的工作能力總覽。涵蓋溝通、問題解決、技術、領導等多個面向，幫助你在職場上脫穎而出。
>
> *Translation: Overview of practical work skills. Covers aspects such as communication, problem-solving, technical abilities, and leadership, helping you excel in your career.*

* **Suitable for:** Posts focusing on practical application, job seekers.

**Option 3: Focusing on Personal Development**

> 提升自我的關鍵。學習與發展能讓你更有效率、更有自信、活出精彩人生的技能。
>
> *Translation: The key to self-improvement. Learning and developing skills that can make you more efficient, more confident, and live a fulfilling life.*

* **Suitable for:** Blogs focusing on personal growth and development.

**Option 4: More Descriptive with Examples**

> 揭示成功的基石：關鍵技能。包含諸如時間管理、策略規劃、數據分析，以及創意發想等，能推動你實現抱負的各種能力。
>
> *Translation: Unveiling the cornerstone of success: Crucial Skills. Includes abilities such as time management, strategic planning, data analysis, and creative ideation, to propel you towards achieving your aspirations.*

* **Suitable for:** Attracting a wider range of readers, emphasizing the breadth of skill-sets.

**Choosing the Best Option:**

Consider:

* **Your Target Audience:** Who are you writing for? (e.g., job seekers, professionals, general readers)
* **The Content:** What topics are generally covered under this tag?
* **Your Blog’s Tone:** Is it professional, inspirational, or practical?

You can also modify these options to better suit your specific needs. Good luck!