Codex CLI Fundamentals for Agentic Vibe Coding

Topic 1: Codex CLI Architecture, Setup & Core Commands

• Introduction to Agentic Vibe Coding and Codex CLI
• Installing and configuring Codex CLI
• Understanding how Codex navigates a codebase
• Context management and session memory
• Core CLI commands for prompting, file referencing, editing, and executing shell tasks
• Managing context size and controlling conversations
• Creating and structuring project instruction files (e.g., AGENTS.md)

Topic 2: Agentic Development, Skills & MCP Integration

• Planning-first workflows for improved performance
• Using reasoning modes for complex development tasks
• Understanding and managing Skills
• Creating and extending custom skills
• Introduction to MCP and external tool connectivity
• Connecting to MCP servers and external services
• Using hooks and tool execution workflows
• Parallel development using Git branches

Topic 3: Real-World Workflows, GitHub & Automation

• Building and improving applications using Codex CLI
• Writing tests and refactoring safely
• Debugging with structured agent workflows
• Integrating Codex with GitHub for issues and pull requests
• Managing multiple agent sessions for independent features
• Automating browser workflows and UI validation via MCP tools
• Converting notebooks into deployable applications

Promotion Code

Promo or discount cannot be applied to WSQ courses

Minimum Entry Requirement

Knowledge and Skills

• Able to operate using computer functions
• Minimum 3 GCE ‘O’ Levels Passes including English or WPL Level 5 (Average of Reading, Listening, Speaking & Writing Scores)

Attitude

• Positive Learning Attitude
• Enthusiastic Learner

Experience

• Minimum of 1 year of working experience.

Target Age Group: 21-65 years old

Minimum Software/Hardware Requirement

Software:

You can download and install the following software:

• Meta Ads Manager
• Meta Pixel and Conversion API

Hardware: Windows and Mac Laptops

About Progressive Wage Model (PWM)

The Progressive Wage Model (PWM) helps to increase wages of workers through upgrading skills and improving productivity. 

Employers must ensure that their Singapore citizen and PR workers meet the PWM training requirements of attaining at least 1 Workforce Skills Qualification (WSQ) Statement of Attainment, out of the list of approved WSQ training modules.

For more information on PWM, please visit MOM site.

Funding Eligility Criteria

Steps to Apply Skills Future Claim

• The staff will send you an invoice with the fee breakdown.
• Login to the MySkillsFuture portal, select the course you’re enrolling on and enter the course date and schedule.
• Enter the course fee payable by you (including GST) and enter the amount of credit to claim.
• Upload your invoice and click ‘Submit’

SkillsFuture Level-Up Program

The  SkillsFuture Level-Up Programme provides greater structural support for mid-career Singaporeans aged 40 years and above to pursue a substantive skills reboot and stay relevant in a changing economy. For more information, visit SkillsFuture Level-Up Programme

Get Additional Course Fee Support Up to $500 under UTAP

The Union Training Assistance Programme (UTAP) is a training benefit provided to NTUC Union Members with an objective of encouraging them to upgrade with skills training. It is provided to minimize the training cost. If you are a NTUC Union Member then you can get 50% funding (capped at $500 per year) under Union Training Assistance Programme (UTAP).

For more information visit NTUC U Portal – Union Training Assistance Program (UTAP)

Steps to Apply UTAP

• Log in to your U Portal account to submit your UTAP application upon completion of the course.

Note

• SSG subsidy is available for Singapore Citizens, Permanent Residents, and Corporates.
• All Singaporeans aged 25 and above can use their SkillsFuture Credit to pay. For more details, visit www.skillsfuture.gov.sg/credit
• An unfunded course fee can be claimed via SkillsFuture Credit or paid in cash.
• UTAP funding for NTUC Union Members is capped at $250 for 39 years and below and at $500 for 40 years and above.
• UTAP support amount will be paid to training provider first and claimed after end of class by learner.

Appeal Process

1. The candidate has the right to disagree with the assessment decision made by the assessor.
2. When giving feedback to the candidate, the assessor must check with the candidate if he agrees with the assessment outcome.
3. If the candidate agrees with the assessment outcome, the assessor & the candidate must sign the Assessment Summary Record.
4. If the candidate disagrees with the assessment outcome, he/she should not sign in the Assessment Summary Record.
5. If the candidate intends to appeal the decision, he/she should first discuss the matter with the assessor/assessment manager.
6. If the candidate is still not satisfied with the decision, the candidate must notify the assessor of the decision to appeal. The assessor will reflect the candidate’s intention in the Feedback Section of the Assessment Summary Record.
7. The assessor will notify the assessor manager about the candidate’s intention to lodge an appeal.
8. The candidate must lodge the appeal within 7 days, giving reasons for appeal 
9. The assessor can help the candidate with writing and lodging the appeal.
10. he assessment manager will collect information from the candidate & assessor and give a final decision.
11. A record of the appeal and any subsequent actions and findings will be made.
12. An Assessment Appeal Panel will be formed to review and give a decision.
13. The outcome of the appeal will be made known to the candidate within 2 weeks from the date the appeal was lodged.
14. The decision of the Assessment Appeal Panel is final and no further appeal will be entertained.
15. Please click the link below to fill up the Candidates Appeal Form.

• Digital Marketing Specialist
• Social Media Manager
• Online Brand Manager
• Content Creator
• Digital Content Specialist
• Advertising Manager
• Marketing Analyst
• E-commerce Specialist
• Media Planner
• SEO Specialist
• Product Manager
• Community Manager
• Public Relations Specialist
• Influencer Marketing Specialist
• Affiliate Marketing Manager

Mohan Pothula: Mohan Pothula is an experienced network engineer and IT infrastructure specialist with more than 18 years of expertise in system administration, network security, and cloud integration. He has managed enterprise network solutions for multinational corporations and trained IT professionals in CompTIA certifications, Cisco networking, and cybersecurity. Mohan’s technical mastery spans routing and switching, WAN optimization, and network troubleshooting, making him a trusted mentor for learners preparing for globally recognized IT credentials.

In “CompTIA Certified Network+ Training (Synchronous e-Learning),” Mohan focuses on providing a strong foundation in networking concepts, infrastructure, and security. His sessions combine theoretical instruction with real-world lab simulations using tools such as Cisco Packet Tracer and Wireshark. With his methodical teaching style and hands-on guidance, he helps learners develop the competencies needed to design, configure, and maintain reliable and secure network systems.

Truman Ng: Truman Ng is a senior IT consultant and network systems architect with over 20 years of experience in enterprise infrastructure, cybersecurity, and automation. A PMP, ACTA, and Huawei HCIE-certified professional, he has led global projects across industries focusing on network optimization, cloud deployment, and digital transformation. His expertise lies in integrating secure networking solutions with modern IT systems, ensuring scalability and performance in dynamic enterprise environments.

In “CompTIA Certified Network+ Training (Synchronous e-Learning),” Truman equips learners with the technical skills required to design and manage enterprise networks. His sessions emphasize network architecture, troubleshooting, and security best practices aligned with CompTIA standards. Through hands-on simulations and real-world case studies, he enables participants to build confidence in managing complex network infrastructures and preparing for industry certification.

Agus Salim: Agus Salim is an IT systems engineer and certified trainer with over 15 years of experience in network administration, IT support, and cybersecurity. A WSQ-accredited educator and Microsoft Certified Professional, he has delivered numerous programs in networking fundamentals, cloud computing, and IT infrastructure management. His teaching approach focuses on simplifying complex technical concepts into practical, real-world applications for aspiring IT professionals.

In “CompTIA Certified Network+ Training (Synchronous e-Learning),” Agus helps participants understand core networking technologies, protocols, and troubleshooting techniques. His sessions include practical demonstrations of LAN/WAN configuration, IP addressing, and network monitoring. By combining clear explanations with hands-on activities, he ensures that learners gain both theoretical knowledge and applied skills essential for passing the Network+ certification exam.

Alec Tan Chee Wee: Alec Tan is a skilled IT consultant and cloud infrastructure architect with over 15 years of experience in network engineering, systems administration, and enterprise IT management. He has implemented large-scale networking and cloud solutions using Microsoft Azure, Cisco, and VMware technologies. Alec’s industry expertise in network performance tuning, virtualization, and data security makes him a valuable instructor for learners pursuing advanced networking certifications.

In “CompTIA Certified Network+ Training (Synchronous e-Learning),” Alec focuses on building learners’ competencies in network configuration, monitoring, and maintenance. His sessions cover wired and wireless networking, IP subnetting, and troubleshooting methodologies. With his practical and systematic approach, he guides participants to develop a strong technical foundation and readiness for real-world network challenges.

Dr. Alfred Ang: Dr. Alfred Ang is a distinguished technology leader, educator, and cybersecurity expert with over 20 years of experience in IT systems, cloud computing, and digital transformation. As Chief Technology Officer and CIO of Tertiary Infotech Pte Ltd, he has spearheaded the development of over 500 WSQ-accredited technology programs. Dr. Ang holds a Ph.D. in Information Systems and multiple industry certifications including CompTIA Security+, CISSP, and CEH, reflecting his deep expertise in both academic and enterprise IT domains.

In “CompTIA Certified Network+ Training (Synchronous e-Learning),” Dr. Ang provides strategic insights into modern network architectures, security implementation, and enterprise infrastructure design. His sessions integrate foundational networking principles with cybersecurity considerations, preparing learners for both certification success and real-world deployment. Through his engaging and comprehensive instruction, he empowers participants to master network management and contribute effectively to organizational IT operations.