Artifacts: what your agent can make in onecell

Diagrams, charts, timelines, decisions, tables, diffs and small interactive tools, made by your agent as real blocks you can read, edit, search and share.

In onecell your agent doesn't only write text. It builds artifacts: a diagram, a chart, a timeline, a decision, a small calculator. Each one is a real block, not a picture of one, so you can read it, edit it, search it, and share it like anything else. Every example on this page is a live block, using a made-up invoicing app called Tally.

Diagrams

Flows, architecture, sequences and states, drawn from text, so the agent can update them later. Ask: “Diagram how an invoice gets paid.”

flowchart LR
  A[Invoice sent] --> B{Paid by due date?}
  B -- Yes --> C[Marked paid]
  B -- No --> D[Reminder sent]
  D --> E{Paid within 7 days?}
  E -- Yes --> C
  E -- No --> F[Needs attention]

How a Tally invoice gets paid, or doesn't.

Charts

Bar, line and pie charts from numbers your agent found or worked out, with a caption that says where they came from. Ask: “Chart invoices paid on time by month.”

Invoices paid on time

Without reminders
With reminders

View data

Month	Without reminders	With reminders
May	61%	74%
June	59%	78%
July	63%	81%
August	60%	83%

Made-up numbers for Tally, by month.

Headline numbers

The three or four numbers that matter, at the top of a brief or a report. Ask: “Start with the headline numbers.”

Paying accounts: 2,310; Good: +6%
Average days to paid: 18; Good: −4
Failed payments: 3.1%; Bad: +0.4

Timelines

What happened, in order: incidents, project history, a changelog. Ask: “Write the outage as a timeline.”

09:04
Bad: A deploy restarts the worker mid-run
09:06
Bad: Reminders go out a second time
09:51
Good: Reminders paused
11:20
Good: Apology sent to affected accounts

Decisions

The question, the context, the call and what it commits you to. It starts as proposed; when someone accepts it, onecell records who and when. Your agent can list every open one. Ask: “Record that as a proposed decision.”

Tables, steps and checklists

Comparisons, how-tos and to-dos, as structure rather than text that looks like it. Ask: “Compare the three options in a table”, “turn that into steps”, “make a checklist of what's left”.

Option	Effort	Risk
Keep the cron script	None	Sends twice on a restart
Lock the cron run	Small	A stuck lock stops all reminders
Move to the job queue	Medium	Lowest, with one key per reminder

Done: Deploy the queue in dry-run mode
Compare its log with the cron script's for two days
Switch the cron script off

Changes

A before-and-after of code, config or copy, with the differences drawn for you. Ask: “Show the fix as a diff.”

lib/reminders/send.ts+3 −0

 for (const r of due) {
+Added:   const key = `${r.invoiceId}:${r.number}`;
+Added:   if (await alreadySent(key)) continue;
   await sendReminder(r);
+Added:   await markSent(key);
 }

Formulas

Maths written properly, for models, pricing and research. Ask: “Write the late fee as a formula.”

\text{late fee} = \text{amount} \times \frac{r}{365} \times \text{days late}

Simple daily interest on an overdue invoice, at annual rate r.

Small interactive tools

A calculator or a small simulation readers can try, run in a sealed-off frame with no network. On public pages it waits until a reader clicks Run. Ask: “Make a calculator for the late fee.” Interactive blocks are rolling out cluster by cluster.

And the rest

Artifact	For
Images and files	Screenshots, PDFs, spreadsheets, uploaded by you or your agent
Sketches	Hand-drawn boxes and arrows, editable in onecell
Code	Snippets with highlighting and a copy button
Callouts and quotes	Warnings, tips and what someone said
Toggles	Detail a reader can open when they want it
Videos	YouTube, Vimeo and Loom, loaded only when played
Links	A card for a page worth reading
Embeds	Another onecell document, shown in place and kept current
Remembered facts	A fact from memory, always showing its latest version
Agent turns	Key moments of a conversation with an agent

Why blocks, not pictures

They stay editable. Ask for the chart with September added and the agent changes the numbers, not a screenshot.
They are searchable. Captions, table cells and decisions are all found by search, and cited by cell, heading and passage.
They travel. Publish the page, share it with a link, embed it in another document, or let an agent read it as Markdown.
They keep history. Every change is a version, with who made it.