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Manh Nguyen Van

@manhvann

Backend Engineer passionate about building reliable systems and contributing to open source.

68 skills1 repository 89

Skills (68)

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Research technical solutions, analyze architectures, gather requirements thoroughly. Use for technology evaluation, best practices research, solution design, scalability/security/maintainability analysis.

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manhvann/codexkit89Updated Aug 29, 2026

Fast codebase scouting using parallel agents. Use for file discovery, task context gathering, quick searches across directories. Supports internal (Explore) and external (Gemini/OpenCode) agents.

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manhvann/codexkit89Updated Aug 29, 2026

View plans dashboard with progress tracking and timeline visualization. Use for kanban boards, plan status overview, phase progress, milestone tracking, project visibility.

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manhvann/codexkit89Updated Aug 29, 2026

ALWAYS activate this skill before implementing EVERY feature, plan, or fix.

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manhvann/codexkit89Updated Aug 29, 2026

Search library/framework documentation via llms.txt (context7.com). Use for API docs, GitHub repository analysis, technical documentation lookup, latest library features.

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manhvann/codexkit89Updated Aug 29, 2026

Create polished frontend interfaces from designs/screenshots/videos. Use for web components, 3D experiences, replicating UI designs, quick prototypes, immersive interfaces, avoiding AI slop.

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manhvann/codexkit89Updated Aug 29, 2026

AI-optimized browser automation CLI with context-efficient snapshots. Use for long autonomous sessions, self-verifying workflows, video recording, and cloud browser testing (Browserbase).

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manhvann/codexkit89Updated Aug 29, 2026

Generate images via Nano Banana with 129 curated prompts. Mandatory validation interview refines style/mood/colors (use --skip to bypass). 3 modes: search, creative, wild. Styles: Ukiyo-e, Bento grid, cyberpunk, cinematic, vintage patent.

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manhvann/codexkit89Updated Aug 29, 2026

Analyze images/audio/video with Gemini API (better vision than Codex). Generate images (Imagen 4), videos (Veo 3). Use for vision analysis, transcription, OCR, design extraction, multimodal AI.

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manhvann/codexkit89Updated Aug 29, 2026

Build backends with Node.js, Python, Go (NestJS, FastAPI, Django). Use for REST/GraphQL/gRPC APIs, auth (OAuth, JWT), databases, microservices, security (OWASP), Docker/K8s.

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manhvann/codexkit89Updated Aug 29, 2026

Add authentication with Better Auth (TypeScript). Use for email/password, OAuth providers (Google, GitHub), 2FA/MFA, passkeys/WebAuthn, sessions, RBAC, rate limiting.

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manhvann/codexkit89Updated Aug 29, 2026

Bootstrap new projects with research, tech stack, design, planning, and implementation. Modes: full (interactive), auto (default), fast (skip research), parallel (multi-agent).

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manhvann/codexkit89Updated Aug 29, 2026

Brainstorm solutions with trade-off analysis and brutal honesty. Use for ideation, architecture decisions, technical debates, feature exploration, feasibility assessment, design discussions.

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manhvann/codexkit89Updated Aug 29, 2026

Automate browsers with Puppeteer CLI scripts and persistent sessions. Use for screenshots, performance analysis, network monitoring, web scraping, form automation, JavaScript debugging.

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manhvann/codexkit89Updated Aug 29, 2026

Codex Kit usage guide — discover commands, skills, workflows naturally.

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manhvann/codexkit89Updated Aug 29, 2026

Review code quality, receive feedback with technical rigor, verify completion claims. Use before PRs, after implementing features, when claiming task completion. Includes scout-based edge case detection and native Task pipeline orchestration.

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manhvann/codexkit89Updated Aug 29, 2026

Set coding experience level for tailored explanations and output format.

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manhvann/codexkit89Updated Aug 29, 2026

Check context usage limits, monitor time remaining, optimize token consumption, debug context failures. Use when asking about context percentage, rate limits, usage warnings, context optimization, agent architectures, memory systems.

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manhvann/codexkit89Updated Aug 29, 2026

Conversion copywriting formulas, headline templates, email copy patterns, landing page structures, CTA optimization, and writing style extraction. Activate for writing high-converting copy, crafting headlines, email campaigns, landing pages, or applying custom writing styles from assets/writing-styles/ directory.

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manhvann/codexkit89Updated Aug 29, 2026

Design schemas, write queries for MongoDB and PostgreSQL. Use for database design, SQL/NoSQL queries, aggregation pipelines, indexes, migrations, replication, performance optimization, psql CLI.

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manhvann/codexkit89Updated Aug 29, 2026

Is this your account? Link GitHub to bring it onto your creator page (Japanese)