# No Unmeasured Numbers

> State no number without an instrument behind it - no duration or effort estimates, no usage forecasts, no unbaselined comparatives.

- Skill: `kalabint/no-unmeasured-numbers` (Agent Skill)
- Install (CLI): `npx skillmds@latest add kalabint/no-unmeasured-numbers`
- Raw SKILL.md: https://api.skillmd.com/api/skills/kalabint/no-unmeasured-numbers/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: Kalabint (https://skillmd.com/u/kalabint)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/kalabint/no-unmeasured-numbers

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# No unmeasured numbers

Measured elapsed time is fine; projected time is not. "About an hour of work", "most users", "higher than average", "this is the hard part" are numbers or rankings with no measurement under them.

**Why:** an unmeasured number is read as data and anchors decisions on nothing.

**How to apply:** report quantities you can measure (rows per second, count pending, percent done) and their source. When you have no instrument, say what you would measure and how, rather than emitting a figure or a ranking.