thu · ep 05 · jun 18
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 ▣ MEET THE GUESTS
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
REGISTER ▶
EP 04
· MAY 2026 · 03 GUESTS · FULL EPISODE

HOW TO EVALUATE AGENTIC WORKFLOWS

Skill scepticism, plan review, implementation review, agentic search, and hidden holdout tests.

EP 04 · HOW TO EVALUATE AGENTIC WORKFLOWS - skill scepticism, review loops, and hidden holdout tests
Hamel Husain
HAMEL HUSAINparlance labs
 Chris Fonnesbeck
CHRIS FONNESBECKpymc labs · mets / brewers / yankees
 Doug Turnbull
DOUG TURNBULLsearch · shopify / reddit
▣ HIGHLIGHT REEL
01
skill-scepticism workflow
Read public skills like code: check provenance, maintenance, and constraints, then fork the idea instead of importing a shortcut. · Hamel Husain
00:22:32
02
plan-review-implementation-review workflow
Turn cheap experimentation into checkpoints: plan first, review red and yellow flags, implement, then review the code before trust. · Chris Fonnesbeck
01:05:53
03
auto-research-agentic-search workflow
Give the agent room to mutate a search ranker, but keep the final score hidden so improvements have to survive a real holdout. · Doug Turnbull
01:41:07
▶ WATCH ON YOUTUBE
EP 03
· MAY 2026 · 06 GUESTS · RUNTIME 3H 18M

FROM SKILLS TO AGENT HARNESSES

Research memory, local boxes, debug panes, live notebooks, video generation, and code repair.

EP 03 · FROM SKILLS TO AGENT HARNESSES - research memory, debug surfaces, notebooks, video, and code repair
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
A narrow audit pass for the failure mode agents love: broad try blocks and exception handlers that make bad code look green. · Matthew Honnibal
00:12:09
02
pre-mortem skill
Instead of hunting today's bugs, write incident reports for the failures a future reasonable edit could cause. · Matthew Honnibal
00:14:10
03
mutation-testing skill
Deliberately break the code, one mutation at a time, to find the bugs your test suite would let through. · Matthew Honnibal
00:14:10
04
here-now skill
Collapse publishing into one instruction: the agent ships HTML pages and small sites to live URLs without a GitHub Pages detour. · Eleanor Berger
00:45:55
05
anki-connect skill
Drive Anki through its local API with confirmation checks, so an agent can maintain flashcards without silently mutating memory. · Eleanor Berger
00:49:46
06
impeccable skill
Give coding agents a design language: fewer generic panels, more interfaces that look like someone meant it. · Eleanor Berger
00:50:02
07
youtube-watch-later-gist-summaries skill
Asked once from a phone; the agent invented browser login, transcript fetching, caching, and secret gist summaries. · Eleanor Berger
00:52:57
08
thread-postmortem skill
Use failed threads as harness training data: trace missteps to instructions, then delete or sharpen the rule that caused them. · Nicolay Gerold
01:59:04
09
remotion-video skill
Record a few minutes of audio; let the skill carry video taste, timing rules, frame checks, and avatar compositing. · Alan Nichol
02:46:00
10
research skill
Turn trusted sources into a durable research wiki, so future agents query accumulated context instead of starting over. · Paul Iusztin
02:19:52
11
personal-agent-harness workflow
Run a personal agent on a separate Mac mini, with Discord as the front door and autonomy earned inside a hard perimeter. · Eleanor Berger
00:47:50
▶ WATCH ON YOUTUBE $ INSTALL SKILLS
EP 02
· MAY 2026 · 04 GUESTS · RUNTIME 2H 14M

BUILDING AGENTS THAT IMPROVE THE WORKFLOW

Prompt refinement, eval-driven charts, human-in-the-loop EDA, and local-first inference.

EP 02 · BUILDING AGENTS THAT IMPROVE THE WORKFLOW - prompt refinement, eval-driven charts, EDA, and local-first inference
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 intent first, then generate risky variants and score them against a rubric written before the run. · Hilary Mason
01:01:00
02
marimo-pair skill
Drop the agent inside a live Marimo kernel, so plots, widgets, markdown, and corrections happen in one reactive notebook. · Eric Ma
00:11:57
03
agentic-eda workflow
The human chooses the next scientific question; the agent renders evidence fast enough to keep exploration one plot at a time. · Eric Ma
00:23:27
04
eval-driven-charts workflow
Turn every failed chart eval into a library feature, so the package cannot regress on a case it already learned. · Bryan Bischof
01:25:11
05
weekly-gremlins workflow
Schedule three bad-idea personas to pitch, critique, and write moonshot docs no product roadmap would allow. · Hilary Mason
01:14:20
06
local-first-agents workflow
Default local: fast Qwen on a laptop, private workflows, offline flights, and cloud calls only for named exceptions. · Tomasz Tunguz
02:07:42
▶ WATCH ON YOUTUBE $ INSTALL SKILLS
EP 01
· APR 2026 · 03 GUESTS · RUNTIME 1H 32M

THE AGENTIC SOFTWARE FACTORY

RoboRev, agent memory, personal commands, and LLM-as-judge chart checks.

EP 01 · THE AGENTIC SOFTWARE FACTORY - RoboRev, agent memory, personal commands, and LLM-as-judge checks
Wes McKinney
WES MCKINNEYpandas / posit
 Jeremiah Lowin
JEREMIAH LOWINprefect / fastmcp
 Randy Olson
RANDY OLSONgoodeye labs
▣ HIGHLIGHT REEL
01
explain skill
When ten agents are running, each one explains the change like a colleague, not a diff bot. · Jeremiah Lowin
00:46:14
02
github-reply skill
A tiny etiquette layer for OSS maintenance: reject clearly, sound human, and stop wrapping "no" in fake praise. · Jeremiah Lowin
00:54:08
03
ship-it skill
One phrase, one override: in Jeremiah's world "ship it" means open the PR, never merge it. · Jeremiah Lowin
00:54:52
04
high-signal-chart-workflow skill
Run search, chart variants, linting, and an LLM-as-judge Tufte test until the graphic actually carries the story. · Randy Olson
01:12:37
05
8-bit-video-gen skill
The show's own production skill: turn guest photos into pixel art, animate them, and feed the retro livestream system. · Show Us Your Agent Skills
ep 01
06
agentic-software-factory workflow
Scale agentic engineering with commits every turn, RoboRev reading every line, and a review queue agents must drain. · Wes McKinney
00:27:14
07
second-brain workflow
Feed daily voice memos into editable agent memory, turning personal context into a substrate future sessions can use. · Jeremiah Lowin
00:35:50
▶ WATCH ON YOUTUBE $ INSTALL SKILLS

GUEST DOSSIERS

one page per builder: segment video, field notes, artifacts, and the workflow they showed
Hamel Husain HAMEL HUSAINEP 04skill scepticism, internal APIs, and constraints over prose Chris Fonnesbeck CHRIS FONNESBECKEP 04review loops for Bayesian modeling and agent-written code Doug Turnbull DOUG TURNBULLEP 04agentic search, hidden validation, and anti-overfit evals Paul Iusztin PAUL IUSZTINEP 03research skills, trusted sources, and a writing knowledge base Eleanor Berger ELEANOR BERGEREP 03Hermes, fnord, local boxes, and agent boundaries Alan Nichol ALAN NICHOLEP 03programmatic video, Remotion, and command-line production Vincent Warmerdam VINCENT WARMERDAMEP 03marimo pair, widgets, and notebooks as shared state Nicolay Gerold NICOLAY GEROLDEP 03debug surfaces, thread postmortems, and reusable context Matthew Honnibal MATTHEW HONNIBALEP 03try-except repair, mutation testing, and self-review loops Hilary Mason HILARY MASONEP 02prompt refinement, weekly gremlins, and taste loops Bryan Bischof BRYAN BISCHOFEP 02eval-driven charts, ratchets, and chart judgment Eric Ma ERIC MAEP 02agentic EDA, marimo, and human-in-the-loop plots Tomasz Tunguz TOMASZ TUNGUZEP 02local-first agents, earnings analysis, and fast local models Wes McKinney WES MCKINNEYEP 01RoboRev, long-running agents, and agentic engineering Jeremiah Lowin JEREMIAH LOWINEP 01personal software, explain, ship-it, and GitHub replies Randy Olson RANDY OLSONEP 01Tufte checks, chart workflows, and LLM-as-judge review

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
explain
EP 01
Agent narrates what it just did, like a teammate handing off.
Jeremiah Lowin · Prefect / FastMCP ↗ youtube · 00:46:14
skill
github-reply
EP 01
Replies to GitHub contributors in your voice. No "great work, but rejected" sandwiches.
Jeremiah Lowin · Prefect / FastMCP ↗ youtube · 00:54:08
skill
ship-it
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
marimo-pair
EP 02
Agent drives a reactive Marimo notebook through a bash bridge into the Python kernel.
Eric Ma · Moderna ↗ youtube · 00:11:57
workflow
agentic-eda
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.
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