SEASON01 SHIPPED04 UPCOMING01 VENUEYOUTUBE LIVE

SHOW US YOUR [ AGENT ] SKILLS

[ vanishing / gradients ] × PyMC LABS

HOSTED BY HUGO BOWNE-ANDERSON × THOMAS WIECKI

EXCEL WORLD CHAMPIONSHIPS × EUROVISION

Long-time Python, ML, AI and data builders show how they're actually using agents today. Not vibe coding. Not demos. The real workflows: agent skills, harnesses, voice-memo memory, background reviewers, from people whose software you've been using for years.

▶ PRESS START · EP 05 ▣ WATCH PAST EPISODES

SEASON

01

EPISODES

04

BUILDERS

17

SKILLS · WORKFLOWS

34 · 68

NEXT EPISODE JUN 18 · 2026 thursday · live on youtube

EP 05 · COPILOTS & CODING AGENTS

Three builders on coding agents, search, and context engineering

JOHN BERRYMANarcturus labs · ex-github copilot

ISAAC FLATHkentro tech · ex-answer.ai

MATT PALMERconductor · ex-replit

HOSTS HUGO BOWNE-ANDERSON · THOMAS WIECKI

EP 04

· MAY 2026 · FULL EPISODE ON YOUTUBE · HIGHLIGHT REEL SOON

EVALS, SEARCH & SPORTS

Three builders on LLM evals, search relevance, and Bayesian sports modelling — the real workflows they run.

EP 04 · EVALS, SEARCH & SPORTS — three builders on evals, search relevance, and Bayesian sports modelling

Hamel Husain

HAMEL HUSAINparlance labs

Chris Fonnesbeck

CHRIS FONNESBECKpymc labs · mets / brewers / yankees

Doug Turnbull

DOUG TURNBULLsearch · shopify / reddit

▣ HIGHLIGHT REEL

Coming soon: the skills and workflows from this episode, packaged into the companion repo with repo links and timestamps — same as EP 01 & EP 02. Subscribe to get them when they land.

▶ WATCH ON YOUTUBE

EP 03

· MAY 2026 · RUNTIME 3H 18M · 22 SKILLS · 30 WORKFLOWS

GOING TO EUROPE

Long-time European builders show their real agent setups: agent skills, harnesses, and the workflows they actually run.

EP 03 · GOING TO EUROPE — long-time European builders on their real agent setups

Paul Iusztin

PAUL IUSZTINdecoding ai

Eleanor Berger

ELEANOR BERGERelite ai coding

Alan Nichol

ALAN NICHOLrasa

Vincent Warmerdam

VINCENT WARMERDAMmarimo

Nicolay Gerold

NICOLAY GEROLDamp

Matthew Honnibal

MATTHEW HONNIBALspacy / explosion

Ines Montani

INES MONTANIspacy / explosion

▣ HIGHLIGHT REEL

01

try-except skill

Reads a Python codebase and tightens every try/except so the try covers only what can fail and the except catches the right exception. · Matthew Honnibal

00:12:09

02

pre-mortem skill

Reads production code, finds where it is fragile, and writes post-mortems for bugs that have not happened yet but a plausible change could introduce. · Matthew Honnibal

00:14:10

03

mutation-testing skill

Measures test-suite strength by introducing deliberate bugs one at a time and reporting which ones no test caught. · Matthew Honnibal

00:14:10

04

Publishes HTML pages, files, and whole sites to live URLs without leaving the terminal. · Eleanor Berger

00:45:55

05

anki-connect skill

Drives Anki through the AnkiConnect API, gating every note- or card-modifying operation behind explicit confirmation. · Eleanor Berger

00:49:46

06

impeccable skill

Hands a coding agent a full frontend design language so it builds production-grade interfaces instead of generic ones. · Eleanor Berger

00:50:02

07

youtube-watch-later-gist-summaries skill

Reads your YouTube Watch Later playlist, summarises every video from its transcript, and publishes each summary as a secret gist. · Eleanor Berger

00:52:57

08

thread-postmortem skill

Introspects a thread that went sideways, traces each misstep to the instruction behind it, and proposes edits biased toward deletion. · Nicolay Gerold

01:59:04

09

remotion-video skill

Encodes a builder's design judgment for programmatic video, so Claude turns a few minutes of recorded audio into a finished explainer. · Alan Nichol

02:46:00

Still to come from this episode: Paul Iusztin's writing loop — diff a hand-edit against the agent's draft, extract the signal, and fold it back into a markdown style profile the agent reads next time — plus Vincent Warmerdam on notebooks as a shared canvas for humans and agents (his marimo-pair skill already shipped in EP 02).

▶ WATCH ON YOUTUBE $ INSTALL SKILLS

EP 02

· MAY 2026 · RUNTIME 2H 14M · 05 SKILLS · 28 WORKFLOWS

HIDDEN DOORS, EVAL-DRIVEN CHARTS & LOCAL-FIRST INFERENCE

Not vibe coding — four builders, four ways to put scaffolding around an agent. Hilary's weekly gremlins, Bryan's eval-driven chart library, Eric's human-in-the-loop EDA in Marimo, and Tom's local-first inference at 120 t/s on Qwen 35B.

EP 02 · HILARY MASON — gremlins: cron-scheduled agents for bad ideas

Hilary Mason

HILARY MASONhidden door

Bryan Bischof

BRYAN BISCHOFtheory ventures

Eric Ma

ERIC MAmoderna

Tomasz Tunguz

TOMASZ TUNGUZtheory ventures

▣ HIGHLIGHT REEL

01

prompt-refinement skill

Interview the user's intent, ask for three variations at different magnitudes of change, score against a rubric you wrote up front. · Hilary Mason

01:01:00

02

marimo-pair skill

A coding agent drives a reactive Marimo notebook through a bash bridge into the Python kernel, for human-in-the-loop EDA. · Eric Ma

00:11:57

03

agentic-eda workflow

Human-in-the-loop EDA: agent renders the next plot, human picks the next question, every claim backed by an artifact. · Eric Ma

00:23:27

04

eval-driven-charts workflow

Build an agent-facing chart library by generalising eval failures into features; the package can never regress on an eval it once passed. · Bryan Bischof

01:25:11

05

weekly-gremlins workflow

Three agent personas pull from a bad-ideas backlog, pitch and critique each other, and write design docs for moonshots no roadmap would schedule. · Hilary Mason

01:14:20

Still to come from this episode: Tom Tunguz's public-company financial analysis skill — local Qwen 35B pulls earnings data and assembles an HTML walkthrough in ~2.5 minutes — plus the local-first inference stack it sits on.

▶ WATCH ON YOUTUBE $ INSTALL SKILLS

EP 01

· APR 2026 · RUNTIME 1H 32M · 07 SKILLS · 10 WORKFLOWS

ROBOREV, THE LOST ART OF VERIFICATION & VOICE-MEMO MEMORY

Three builders, three layers of structure around an agent. Wes's RoboRev daemon reviewing every commit at ~1.3B tokens/day, Jeremiah's personal skill folder bending agents to his voice and verb vocabulary, and Randy's LLM-as-judge verifier loop encoding Tufte's rules into a daily chart-making skill.

EP 01 · WES MCKINNEY — a million lines of code in six months: spicytakes.org & the agentic engineering stack

Wes McKinney

WES MCKINNEYpandas / posit

Jeremiah Lowin

JEREMIAH LOWINprefect / fastmcp

Randy Olson

RANDY OLSONgoodeye labs

▣ HIGHLIGHT REEL

01

Agent narrates what it just did, like a teammate handing off. · Jeremiah Lowin

00:46:14

02

github-reply skill

Replies to GitHub contributors in your voice, no "Great work, but rejected" sandwiches. · Jeremiah Lowin

00:54:08

03

Re-trains "ship it" to mean open a PR, not merge. · Jeremiah Lowin

00:54:52

04

high-signal-chart-workflow skill

Turns a one-line idea into a Tufte-style chart, with an LLM-as-judge verifier loop. · Randy Olson

01:12:37

05

8-bit-video-gen skill

Turns guest headshots into short 8-bit pixel-art video clips for livestream intros and cutaways. · Show Us Your Agent Skills

ep 01

Still to come from this episode: Wes McKinney's stack writeup — agents reviewing agents (every commit read by agents 4–5 times before merge), a fleet of long-running Superpowers sessions (one ran 14 hours and 45 tasks unattended), and "off the rails?" review (no line-level reading, just whether the agent strayed structurally).

▶ WATCH ON YOUTUBE $ INSTALL SKILLS

SELECTED SKILLS & WORKFLOWS

a selection from the companion repo · hugobowne/show-us-your-agent-skills ↗

A selection of skills and workflows from the streams, packaged into the companion repo.

$ npx skills add https://github.com/hugobowne/show-us-your-agent-skills

skill

EP 01

Agent narrates what it just did, like a teammate handing off.

Jeremiah Lowin · Prefect / FastMCP ↗ youtube · 00:46:14

skill

EP 01

Replies to GitHub contributors in your voice. No "great work, but rejected" sandwiches.

Jeremiah Lowin · Prefect / FastMCP ↗ youtube · 00:54:08

skill

EP 01

Re-trains "ship it" to mean open a PR, not merge.

Jeremiah Lowin · Prefect / FastMCP ↗ youtube · 00:54:52

skill

high-signal-chart-workflow

EP 01

One-line idea → Tufte-style chart with an LLM-as-judge verifier loop.

Randy Olson · Goodeye Labs · r/dataisbeautiful ↗ youtube · 01:12:37

skill

8-bit-video-gen

EP 01

Turns guest headshots into 8-bit pixel-art video clips for livestream intros and cutaways.

Show Us Your Agent Skills ↗ ep 01 on youtube

skill

prompt-refinement

EP 02

Interview intent, ask for three variations at different magnitudes, score against a rubric.

Hilary Mason · Hidden Door ↗ youtube · 01:01:00

skill

EP 02

Agent drives a reactive Marimo notebook through a bash bridge into the Python kernel.

Eric Ma · Moderna ↗ youtube · 00:11:57

workflow

EP 02

Human-in-the-loop EDA. Every claim backed by an artifact.

Eric Ma · Moderna ↗ youtube · 00:23:27

workflow

eval-driven-charts

EP 02

Build an agent-facing chart library by generalising eval failures into features; the package can never regress on an eval it once passed.

Bryan Bischof · Theory Ventures ↗ youtube · 01:25:11

workflow

weekly-gremlins

EP 02

Three agent personas pull from a bad-ideas backlog, pitch and critique each other, and write design docs for moonshots no roadmap would schedule.

Hilary Mason · Hidden Door ↗ youtube · 01:14:20

YOUR HOSTS

two builders · two hosts · on a mission to find out what people at the top of the game are actually doing

Hugo Bowne-Anderson

HUGO
BOWNE-ANDERSON

host · vanishing gradients

AI builder, consultant, educator of 6+ million students; ex-Yale, ex-Max Planck.

Thomas Wiecki

THOMAS
WIECKI

host · pymc labs

Co-creator of PyMC. Founder of PyMC Labs. Has built Bayesian models for hedge funds, Fortune 500s, and indie tinkerers for over a decade.