open-source — Radin Shayanfar

Contributions to LLM agent harnesses, guardrail tooling, and a community benchmark release.

FeatBench-Verified v1.3 · 2026

A cleaned community release of the FeatBench benchmark.

Lifted gold-patch resolution from 37.31% (±1.88) to 99.81% (±0.10) by diagnosing harness and environment defects, with 99%+ of original instances and tests preserved.

dataset Harbor PR blog post

Harbor Framework · 2026

Agent-evaluation harness and RL-environment framework from the creators of Terminal-Bench. The official harness for Terminal-Bench 2.0.

merged PRs

PR #1218 — FeatBench Harbor adapter. Authored the adapter for a 156-task, 25-repo feature-level code-generation benchmark. Ported parity fixes upstream to FeatBench and released FeatBench-Verified v1.3, preserving 99%+ of original instances and tests.
PR #1298 — trae-agent integration. Integrated ByteDance's trae-agent into Harbor: full agent implementation, configuration handling, API-key sanitization, and unit tests.
PR #1431 — deveval env-var fix. Fixed an environment-variable bug in deveval oracle script generation.

code review

PR #1438 — SWE-Gym pytest-xdist fix (reviewer). Flagged that the proposed universal flag would break environments without pytest-xdist installed, leading to a scoped, environment-aware solution.

NVIDIA NeMo Guardrails · 2024

Toolkit for programmable guardrails on LLM-based conversational systems.

merged PRs

PR #833 — Colang 2 parser fix. Correctly handles nested if/else statements.
PR #765 — Multiline rendering in few-shot prompts. Resolved cases where multiline bot say parameters broke prompt formatting.
PR #748 — Multiline LLM output syntax fix. Resolved syntax errors for dynamic flow generation involving multiline outputs.
PR #749 — VSCode Colang commenting. Added Ctrl+/ commenting support to the VSCode extension.

all merged PRs