Skip to content
View rioyu123's full-sized avatar
  • Singapore

Block or report rioyu123

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
rioyu123/README.md

Hey, I'm Rio 👋

Building for an agent-first world.

With a decade of hands-on engineering across global enterprise platforms and AI infrastructure, I focus on building AI agents and the systems that make them actually work.

Curious by default, grounded in engineering. I care about what’s next and the craft it takes to take things from research to production.


What I'm Focused On

  • AI Agents: Making intelligent systems reliable, autonomous, and useful in practice.
  • Developer Infrastructure: Building solid foundations, runtimes, and developer tooling for AI.
  • Open Source: Contributing back to the frameworks and libraries powering this ecosystem.
  • Fintech & Value Rails: Exploring the underlying infrastructure that moves and settles value.

Selected Open-Source Work

Merged

Project Technical Contribution & Impact
Microsoft Agent Lightning #583 Added a clear native-Windows boundary for the local runner by failing fast before worker startup, keeping package imports and controller modes clean.
Google MCP Security #287 Enabled end-to-end SecOps workflows by exposing alert IDs and triage verdicts without altering the existing response shape.
NVIDIA SkillEvaluator #109 Expanded link validation across CommonMark references, HTML anchors, and images while filtering out comment/code false positives.
Microsoft Agent Lightning #573 Prevented request drops when model providers return missing or malformed token IDs, preserving retry deduplication and VERL image alignment.
NVIDIA SkillEvaluator #84 Fixed false agent-runtime failures caused by health checks matching raw transcript text, improving diagnostic accuracy.
NVIDIA SkillEvaluator #106 Made Gitleaks checks deterministic and fail-safe on shallow histories while keeping repo-wide scheduled audits intact.
Burn #5494 Ensured extensionless Burnpack paths survive atomic saves, overwrite protection, and store round-trips without silently falling back to .bpk files.
Technocore #135 Fixed a side-effect issue where HEAD requests could append messages or burn nonces, keeping read-only routes strictly read-only.

In Review

Project Technical Contribution & Impact
NVIDIA SkillEvaluator #129 Replaced raw parser and I/O exceptions with clean, path-specific CLI errors to clearly pinpoint bad policy inputs.
NVIDIA SkillSpector #467 Kept stdout clean and parseable for pipelines by redirecting progress indicators and child-scan warnings to stderr.
NVIDIA SkillSpector #463 Restored dynamic model provider registry via SKILLSPECTOR_MODEL_REGISTRY across Claude, Codex, and Gemini with safe fallbacks.
NVIDIA SkillEvaluator #107 Fixed a dependency blind spot where PEP 508 markers could hide unpinned packages, without changing direct-reference behavior.
OpenAI Agents SDK #4739 Enforced numeric and string validation for *args and **kwargs in JSON schemas and at runtime, catching invalid tool inputs upfront.
Claude Agent SDK #1237 Prevented broken session migrations by surfacing subagent I/O issues and blocking symlink loops and directory traversal.
Claude Agent SDK #1238 Ensured one logical subagent ID per listing across duplicate disk paths, aligning store behavior while preserving discovery order.
NVIDIA NeMo Evaluator #1153 Prevented wrong cache hits between requests with different tools, streaming modes, or response formats without needing schema migrations.
Stripe AI #509 Stopped abandoned client streams from lingering in background metering tasks, closing upstream requests promptly.

Tech & Craft

Python Go Rust TypeScript

Tools change, but the interesting part is always making different, moving pieces fit together seamlessly.

Browse all of my pull requests.

Pinned Loading

  1. claude-agent-sdk-python claude-agent-sdk-python Public

    Forked from anthropics/claude-agent-sdk-python

    Python

  2. openai-agents-python openai-agents-python Public

    Forked from openai/openai-agents-python

    A lightweight, powerful framework for multi-agent workflows

    Python

  3. SkillEvaluator SkillEvaluator Public

    Forked from NVIDIA/SkillEvaluator

    Multi-tier framework for evaluating AI agent skills with quality gates, semantic overlap detection, synthetic evaluation dataset generation, and live agent evaluation that measures how skills affec…

    Python

  4. burn burn Public

    Forked from tracel-ai/burn

    Burn is a next generation tensor library and Deep Learning Framework that doesn't compromise on flexibility, efficiency and portability.

    Rust

  5. Huabu Huabu Public

    Forked from microsoft/Huabu

    Huabu, where you and your agents think together.

    TypeScript

  6. RAMPART RAMPART Public

    Forked from microsoft/RAMPART

    A pytest-native safety and security testing framework for agentic AI applications

    Python