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Fuga Redraws an Engine Usage Chart So Measured, Interpolated and Unmeasured Bins Look Different

September 16, 2026 at 15:06 EDT

Software Dev & Coding
AI Agents

Usage dashboards for AI coding engines have a credibility problem that has nothing to do with the numbers: they are sampled. A quota or battery reading exists for the moments the application happened to look, and the gaps between those moments have to be drawn somehow. Fuga's rewrite of one engine's usage trend section, landed in this window, answers that by making the drawing itself carry the provenance — every time bin in the chart is visibly marked as measured, interpolated or unmeasured.

2026-09-17 · FUGA · LOCAL DEVELOPMENT

A usage chart that admits which bars were actually measured

An engine usage panel was rebuilt from a line chart into gapless time-bin columns in which measured, interpolated and unmeasured bins are drawn with three different treatments.

data states with distinct ink

series drawn as contiguous time bins

2px

floor given to a real zero so the column stays unbroken

A zero used to render as nothing

Same unit on both columns: the rendered height, in pixels, of a bin whose measured value is zero.

before: measured as zero pixels

after: one pixel per block, minimum two

Blocks are scaled for legibility; the change itself is two pixels.

HOW THE THREE STATES READ IN THE CHART

measured

interpolated

unmeasured

Illustrative arrangement of the three treatments described in the change, not a reading of real usage data.

NOT COLOR ALONE

Interpolated bins differ from measured bins by texture as well as tone, and a legend names all three states in words.

SHARED LAYOUT

Row, plot, axis and cell classes come from the global history-chart styles, so this panel matches the other engines' rows.

WHAT IS NOT SHOWN

The classification logic, the interpolation method and any rendered contrast measurement are outside the evidence reviewed.

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