ONE DAYSPRINTSGet the kit →
THE AGENT-ERA DESIGN SPRINT

A week of product work.
In one day.

The 5-day design sprint was built for a world where prototyping was expensive. That world is gone.

Read the playbook ↓Get the free Sprint Kit
onedaysprint.sh
$ define --bet→ sketch workflow.ascii→ build --working-slice→ test --with-reality✓ DECIDE: KEEP / KILL / COMPOUND
SCROLL TO START ↓

THE NEW CONSTRAINT

Agents did not remove product judgment.
They made slow judgment expensive.

Software output got cheap. A founder with agents can now create more plausible product in a day than a team can review in a week.

The scarce resource is no longer production. It is knowing what evidence matters before the artifact appears.

THE PLAYBOOK

One bet. One day.
One sharper decision.

The deliverable is not a feature. It is evidence strong enough to change what you do next.

01

Define the bet

Write the riskiest assumption. Decide what evidence would prove it and what would kill it.

↓
02

Sketch the workflow

Turn the bet into an ASCII flow. Make the behavior clear before making it beautiful.

↓
03

Build the slice

Use agents to produce the smallest working version that can create a real signal.

↓
04

Test the behavior

Put it in front of reality. Watch what people do, not what the prototype promises.

↓
05

Make the call

Keep what worked. Kill what did not. Compound the signal into tomorrow’s sprint.

WHAT CHANGED

THE OLD SPRINT

Protect the team from
building the wrong thing slowly.

  • Five days
  • Cross-functional room
  • Realistic facade
  • Customer interview
THE ONE-DAY SPRINT

Protect the builder from
generating the wrong thing quickly.

  • One day
  • One human + agents
  • Working product slice
  • Shipped behavior

THE ROLE SHIFTS

The human stays
in the loop.

Agents become the expanded team. You become the judgment layer.

PM

From writing tickets

→

To framing falsifiable bets

DESIGNER

From polishing screens

→

To shaping testable behavior

ENGINEER

From implementing specs

→

To directing reliable systems

FOUNDER

From managing output

→

To owning the evidence loop

THE RULE

Built is not shipped.

A sprint ends only when the work touches reality and creates a signal.

FREE SPRINT KIT / V1.0

Run one
tomorrow.

Three practical templates to take a product bet from fuzzy idea to shipped signal.

  • ✓ Bet definition card
  • ✓ ASCII workflow canvas
  • ✓ Keep / kill / compound decision card