Work — Eric Hare

JEStats software

Tools for better work with AI.

Open-source tools we develop at JEStats to help coding agents work with real data, choose useful skills, and understand unfamiliar code.

Database tools

Astra DB Plugin

An unofficial JEStats plugin for exploring live Astra DB schemas, running vector and hybrid searches, and making guarded data changes from coding agents.

Explore Astra DB Plugin GitHub

Agent skills

SkillRoute

A JEStats open-source tool that indexes complete skill bundles and returns ranked matches, confidence, and source evidence to coding agents.

Explore SkillRoute GitHub

Codebase understanding

Codebase Mentor

A JEStats tool for source-grounded architecture answers, change plans, and onboarding guides, built around the code your agent actually reads.

Explore Codebase Mentor GitHub

Explore all six AI plugins and their Claude / Codex integrations →

Explore JEStats

Flagship work

Three threads, one point of view.

Make complex systems inspectable. Measure what matters. Leave the implementation open enough to challenge.

Langflow visual flow canvas connecting tools, an agent, and chat input and output components.

2024 — Present · Core maintainer

The open-source, visual framework for building AI agents. 147k+ stars. I'm a core maintainer.

PythonFastAPIReactLangChainMCPDocker

Two three-dimensional bullet surface scans with aligned crosscut signatures.

2026 — Present · Creator

Forensic surface comparison as calibrated evidence: transparent likelihood ratios — not black-box 'matches' — from 3-D scans of bullets, cartridge cases, and toolmarks.

RustPythonFastAPIRNext.jsPyO3

Aeroza live weather map showing radar reflectivity across the United States.

2026 — Present · Creator

Programmable weather intelligence: real-time radar, geospatial queries, streaming APIs, signed webhooks, and probabilistic nowcasting.

PythonFastAPITypeScriptNext.jsPostGISRedis

Research

From bullet matching to calibrated evidence.

Iowa State · CSAFE · Verity

Statistical methods for forensic surface comparison.

My PhD work established an open, reproducible pipeline for analyzing 3D bullet scans. A decade later, that research continues through Verity.

Explore the research

Three-dimensional bullet surfaces and crosscut signatures.

Selected contributions

Platforms I help make real.

Dec 2022 — Present · DataStax → IBM · Software Engineer

The HTTP/JSON API in front of Astra DB — the data plane behind Langflow, astrapy, and the portal's ingestion stack.

PythonJavaFastAPIKubernetesAstra DB

AI Workbench workspace with knowledge bases and retrieval-backed agents.

2026 — Present · Contributor

A self-hosted product surface for building, inspecting, and operating retrieval-backed AI applications on DataStax Astra.

TypeScriptReactHonoAstra DBOpenAPIDocker

Earlier work

A short archive.

Daisi: Python Cloud Functions

Senior Data Scientist · Mar 2019 — Nov 2022

Serverless Python ('daisies') for scientific computing — YOLO, Prophet, sentiment, dimensionality reduction, all callable with one line.

Omni Analytics & OmniacsDAO

Chief Data Scientist · May 2017 — May 2021

Statistical consulting, Shiny apps, and an open-source data-science toolkit for DeFi, crypto, and tournament prediction.