Tashika
確か — certain, verified

The cost of making things collapsed. The cost of trusting them didn't.

Tashika builds the instruments that read whether AI-generated work holds up — and whether anyone still understands it.

We measure the part everyone else assumes.

Read the why
>50%of the open web is now machine-written

Verifiable work is becoming the scarce input.

One through-line: measurement. Everything we build reads a legibility state and watches it for drift.

The shift

Three things happened, in order.

Generation got cheap.

Anyone can produce a draft, a design, a whole system in seconds.

Verification became the bottleneck.

The slow, expensive step is no longer making the work. It's confirming the work is right.

Comprehension is what no one measures.

A team can ship work that passes every check and that no human actually understands. The gap stays invisible until something breaks.

The readout

Three quantities, read at every layer.

Legibility isn't one number. It moves on three axes, and they move independently.

Behaviour

How much of the work is pinned to something checkable.

Theory

Whether a human still holds the argument, the design, the reasons. The axis nobody instruments — and where our defensibility lives.

Residue

What neither captures. We report it as a bound, never as zero.

Legibility readoutBTR

Everything we build watches for one thing — drift: work quietly diverging from the verified state it began in.

The Ledger

We write the argument out in full. Read it when it lands.