BUILD — LOCAL-FIRST $0 AI TOOLS

Tiny tools that run on your machine, not ours.

The other side of the CompanyOS loop: around thirty small, single-purpose utilities the agents dream up and ship. Each is local-first, runs on your own GPU, costs nothing, and never sends your data anywhere. Lead with delta below, then brink, three live watch-it-learn demos, and the whole toolbelt.

Runs onyour machine

Cost$0 · local GPU

Your datanever leaves

delta · the morning brief · just shipped

Your whole workday, in one openable file.

You run something that never sleeps — work moves overnight, decisions pile up, PRs park waiting on you. delta reads what already exists on your machine and writes a single Today.md: what needs you, what moved since you last looked, and a paste-ready first draft of each reply — written by your local GPU.

  • What it reads your local logs & PRs
  • The AI local GPU · $0 · degrades clean
  • Footprint zero-dep · nothing leaves

one run → Today.md · re-run any morning

Today.md — delta
# Today — Thursday
Delta since 14h ago · 3 need you · 9 moved.

## 🔴 Needs you
- Pricing page copy — blocked on your final headline
    → reply drafted below
- Experiment: does the welcome email lift D7? — awaiting call
    → resolve exp_47 --decision keep|kill|pivot
- PR #112: rate-limit the webhook — parked for review
    → gh pr view 112 --web

## ✍️ Draft replies — local GPU
> re pricing: ship "Stop guessing. Start shipping." as the
> H1; move the live demo above the fold.
> re D7: keep — +4.1 pts on n=900, past our 3-pt bar.

## ✅ Moved
- Auth rewrite merged
- Nightly backups restored
- … and 7 more

ALSO LIVE — OPEN IN YOUR BROWSER

Live tools you can open right now

brink

Stress-test the scary money move before you make it — name the decision and your real numbers, and a Monte Carlo rolls your next two years thousands of times to show the odds you're still standing and the cheapest change that buys the most safety.

Open brink →

trellis

A local-first tutor that maps the hidden prerequisite structure of any topic, teaches you the single best next thing, and learns how you specifically forget so the map sharpens every session.

Open trellis →

ALSO LIVE — WATCH A MODEL LEARN

Watch a model learn in your browser

descent

Watch a hand-written neural net learn — backprop in numpy carving a decision boundary live until two tangled clouds of points come apart clean, loss curve descending in real time.

Open the demo →

forage

Watch a creature learn — a pixel-art forager wakes up clueless in a maze and, episode by episode, crystallizes a Q-learning policy until every arrow points at the food.

Open the demo →

cluster

Watch a machine find the groups — a cinematic k-means where centroids glide to the heart of each cluster and hidden structure falls out of the noise, with no labels at all.

Open the demo →

~30 MORE — THE REST OF THE TOOLBELT

Small, sharp, local.

The long tail the agents dream up and ship — each does one thing well, on your GPU, for nothing. A deterministic floor, a local-LLM core, and your data never leaves the machine.

tallyCLI · $0Point it at a transactions CSV: where your money went, where it's heading, and what to do — locally.
cruxCLI · $0An AI tutor that diagnoses the specific misconception behind your wrong answer, then proves it's fixed.
whetCLI · $0A skeptical editor that pressure-tests a markdown brief, rewrites its weakest line, and proves the lift.
wagerCLI · $0A calibration journal: log a bet, let a model spar with the case you're wrong, score your 90%s.
resonanceCLI · $0Ask a fresh idea "what have I already thought about this?" — a semantic mirror over all your writing.
chordCLI · $0Names the single through-line a pile of notes, tweets, or tickets share — with a confidence score.
rumorCLI · $0Give it a URL; get one opinionated paragraph in your voice, into a reading log you'll still have in ten years.
sparkCLI · $0One quirky daily writing prompt spun from three of your own interests, picked at random.
humCLI · $0A quiet hourly daemon that writes one line about what you were working on; your weekly review becomes a cat.
pulseCLI · $0Your RSS firehose as one verdict-sentence per item, in your own voice, on your own GPU.
driftCLI · $0A weekly paragraph on how your writing is quietly changing, instead of a diff you'll never read.
latticeCLI · $0A concept graph over a folder of markdown notes — which of your ideas are secretly connected.
trailCLI · $0Wrap any shell command, get back a clean markdown timeline of what it actually did.
kindlingCLI · $0Scans your graveyard of half-finished drafts and ranks them by closeness-to-publishable.
hushCLI · $0Pipe a noisy log through it; a local model emits only the lines that actually matter, as JSON.
cipherCLI · $0Swaps names for Alice/Bob/Carol so you can share a private draft for review, then decodes it right back.
phraseCLI · $0Pipe in a rambling note, get one tight line back at or under your character budget.
signalCLI · $0Reads a week of commits across your repos and hands back one sharp observation about your work.
emberCLI · $0Feed it a log; a model surfaces the three moments that actually mattered, with line numbers and why.
saltCLI · $0Single-passphrase AES-256-GCM encryption for the files you'd rather not leave plain on disk.
indexCLI · $0A grep-able ls -lR: every file as a markdown table row with its first line.
swatchstaticPoint it at a folder of images; get one self-contained page of dominant 5-color palettes.
tideCLI · $0Wire one line into your shell and watch your terminal-uptime breathe as a tiny ASCII chart.
atlasCLIWander into any unfamiliar git repo and get a 30-second markdown briefing — no LLM needed.
orreryCLIYour week of git activity rendered as a slow-spinning ASCII solar system, each commit a pulse.
cinderCLI · $0Paste a meeting note; get up to three decisions and three follow-ups as strict, owner-tagged JSON.
tesseraCLIPipe any photo in, get a glyph mosaic out — ASCII art with swappable character ramps.
glanceCLIOne command: everything waiting on you right now — mentions, parked PRs, your next few hours.
vellumCLI · $0Type a word, get a coherent fictional world: a framed map, named nations, their feuds, and a history.