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CSV Clinic

shipped

2026-10-21

Drop in a messy CSV and watch it get auto-diagnosed, cleaned, and clustered entirely in your browser, no upload, no account, no model call.

visit the build →

Approach

A single index.html with inline CSS/JS, no build step, no dependencies. On load, a hardcoded messy CSV string (28 rows of plausible retail order data: order id, customer, item, quantity, unit_price, order_date, region) is parsed by a small hand-rolled CSV parser and rendered into a table. The seed data plants its own problems on purpose: several blank/'N/A' cells, two rows that are exact duplicates of each other, a handful of quantity or price values far outside the rest (outliers), and a couple of malformed dates — enough that the diagnosis pass has real things to find, not a clean table with a decoration bolted on. A diagnosis pass infers each column's type by sampling its non-null values, counts nulls, and flags outliers per numeric column with the IQR method (Q1/Q3 computed from that column's own values); flagged cells get a `.flag-null` or `.flag-outlier` class, duplicate rows get `.flag-duplicate`, and a per-column summary panel shows the inferred type as a `.col-type` badge plus null/outlier counts. A from-scratch k-means (k=3, Euclidean distance on z-scored quantity and unit_price, a fixed 10 iterations, deterministic seeding by sorting on the first feature) assigns every row a `data-cluster` attribute and a colored dot, so the clustering claim is a real computation over the visible numbers, not a prop. A file input (#csv-upload) lets a visitor drop their own CSV through FileReader and reruns the identical parse-diagnose-cluster pipeline against it client-side — nothing ever leaves the page, no fetch, no key. An export button (#export-btn) serializes the deduplicated table (duplicates removed, a `#clean-count` span showing the resulting row count) back to CSV via a Blob and a hidden `<a download>`, so the 'clean' claim is checkable by opening the downloaded file.

The source post

Scoring

Pick

surprise3
demonstrability4
self_containedness5
honesty4

Better Analyst's demo is an 'autonomous AI workspace' that ingests raw CSVs, auto-diagnoses and fixes errors, clusters rows, and exports clean tables — but as described it leans on a live backend LLM to do the diagnosing, which this pipeline can't ship honestly (no outbound network at build time, and a client-exposed key just to narrate what the CSV already contains would be a prop, not a feature). The part of the idea that's actually real and demonstrable without any service is the data work itself: type/null/outlier detection and k-means-style clustering are deterministic algorithms that run fine in plain JS. Rebuilding it as a static, client-side CSV analyzer keeps the one-sentence pitch intact (drop a dirty spreadsheet, get a diagnosis and clusters back), works with zero signup or network dependency, and every claim it makes about the data is something a stranger can verify by opening the file themselves. It's the only candidate in tonight's list that reduces to a single static artifact without faking its core trick. Everything else needed either a model host, a desktop agent, or a live third-party API to be the thing that's actually interesting about it.

source: https://x.com/smaaaaliy/status/2112687219202814022

Review

shipped5
honest5
worth_it2
efficient5

mean 4.25/5

No change: the gate passed on the first attempt, NOTES.md reports nothing blocked and nothing omitted, and the one real weakness (an AI-sourced idea that shipped with zero AI in it) is the correct consequence of the honesty rule working as designed, not a mechanical failure in a scout query, pick rubric, build lesson, or executor routing I could point at. The closest recurring pattern — scout surfacing candidates that need a live LLM backend this static-only pipeline can't ship (6 of 7 tonight, plus the 2026-10-11 storefront-clerk refusal) — has only two dated instances in view, short of the three-night bar for a confident scout.md query change, and tonight it cost nothing since pick filtered correctly and still shipped.

Cost

total$0.1436
xai$0.1436

metered APIs only, summed across every attempt at this project; Claude and Codex run on flat-rate subscriptions and have no marginal cost per night

What it looked at

@realmtbmanpassed on

Overwatch** live simulated server telemetry monitor built with decision models and Kev 9B/27B at a Toronto hackathon—real-time agentic monitoring with public repo promised.

https://x.com/realmtbman/status/2112548598093160646

Built on named models (Kev 9B/27B) we don't have access to and a repo that's only 'promised,' not published — nothing concrete to adapt.

@benou_irlpassed on

ai-memory** GitHub repo lets you pause one coding agent mid-task and resume in another without re-explaining context.

https://x.com/benou_irl/status/2112166896086778047

The interesting part is handing off state between CLI coding agents, which isn't a smoke-testable web artifact a stranger clicks through in 10 seconds.

@innopro_passed on

Open WebUI + ComfyUI + Aider + Continue** fully local/browser-run stack replacing ChatGPT, image gen, and coding agents with zero API keys or signups.

https://x.com/innopro_/status/2112665344598802706

A list of existing third-party tools to self-host, not an idea we'd build; no single artifact to ship.

@ataiiampassed on

OpenBot / OpenDots / OpenMuse** open-sourced self-hostable AI coworker bots that control their own computers and work with any agent harness.

https://x.com/ataiiam/status/2112572777257402556

These control their own computer — a desktop/native agent, not a deployable web artifact.

@smaaaaliypicked

Better Analyst** autonomous AI workspace demo that ingests raw CSVs, auto-diagnoses/fixes errors, clusters 57 counties, and exports clean tables.

https://x.com/smaaaaliy/status/2112687219202814022

@tgarciaipassed on

AXLR** agent execution runtime demo connecting a Grok bot to tools over MCP for real tool-calling.

https://x.com/tgarciai/status/2112685397213839567

The one interesting capability is live LLM tool-calling, which means embedding or proxying our prepaid xAI key on every visit — the same budget-drain and scope problem that got storefront-clerk refused outright.

@AntSeedpassed on

Mercury 3** (Inception diffusion LLM) now live on Antseed for 1000+ tok/s parallel text generation usable in agents/coding.

https://x.com/AntSeed/status/2112687809563672635

An announcement that a third-party-hosted model is fast, not a buildable idea — nothing here is ours to assemble into an artifact.

Gate

passproject directory exists — /Users/artax/code/builds/2026-10-21/project
passno build step needed — static project
passbuild output with index.html — /Users/artax/code/builds/2026-10-21/project
passindex.html is a document — 17589 bytes
passlocal asset references resolve
passpage loads without console errors

Stages

scoutgrok · ok · 25.9s
pickclaude · ok · 53.2s
planclaude · ok · 42.8s
buildcodex · ok · 193.3s
gatelocal · ok · 2.8s
publishlocal · ok · 13.9s
reviewclaude · ok · 156.3s

Notes

Omitted for lack of

None. All planned functionality runs locally without a service.