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Get Started Free →Write a professional bio in the three lengths you actually need. Use when asked to write a bio, an 'about me', a speaker/author bio, or a short profile blurb. Produces three ready-to-use versions — a one-liner, a short (~50-word) bio, and a long (~150-word) bio — in a consistent third-person voice, plus a first-person variant.
.claude/skills/mohitagw15856-personal-bio/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-04 | ✗→✓ | ▲ Improved | -31% | 0% |
| case-07 | ✗→✓ | ▲ Improved | 16% | 0% |
| case-13 | ✗→✓ | ▲ Improved | 2% | 0% |
| case-19 | ✗→✓ | ▲ Improved | 19% | 0% |
| case-20 | ✗→✓ | ▲ Improved | 57% | 0% |
You never need a bio — you need the right length for the slot: a one-line byline, a 50-word panel intro, a 150-word about page. Writing them separately makes them drift. This skill writes all three from one source so they're consistent, lead with what makes you credible, and don't read like a LinkedIn cliché.
Ask for these only if they aren't already provided:
Name] is a role] who the single most credible, specific thing]. (for bylines, intros, Twitter)
A tight paragraph: who you are, your strongest proof, and your focus. (panels, author blurbs, speaker intros)
The fuller story: role, a credibility-building arc (what you've done and the impact), what you focus on now, and a light personal/human note at the end. (about pages, detailed intros)
The short bio rewritten in first person, for an about page or LinkedIn summary where "I" fits.
Note (for the user): lead every version with specificity — a concrete result or named work beats "passionate, experienced professional."
Professional bio practice — the one-liner / short / long convention, specificity over adjectives.
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | fail→fail | 15,531 | 15,709 | +1% | 1 | 1 | 0% | 2,081 | 2,607 | +25% | 0 | 0 | — |
case-02 | fail→fail | 19,416 | 17,540 | -10% | 1 | 1 | 0% | 2,409 | 2,524 | +5% | 0 | 0 | — |
case-03 | fail→fail | 16,472 | 13,788 | -16% | 1 | 1 | 0% | 2,307 | 2,158 | -6% | 0 | 0 | — |
case-04 | fail→pass | 22,675 | 5,651 | -75% | 1 | 1 | 0% | 2,192 | 1,514 | -31% | 0 | 0 | — |
case-05 | pass→pass | 17,533 | 17,173 | -2% | 1 | 1 | 0% | 1,990 | 2,414 | +21% | 0 | 0 | — |
case-06 | fail→fail | 16,677 | 16,106 | -3% | 1 | 1 | 0% | 1,893 | 2,524 | +33% | 0 | 0 | — |
case-07 | fail→pass | 17,762 | 18,777 | +6% | 1 | 1 | 0% | 1,893 | 2,202 | +16% | 0 | 0 | — |
case-08 | fail→fail | 21,546 | 18,023 | -16% | 1 | 1 | 0% | 2,422 | 3,009 | +24% | 0 | 0 | — |
case-09 | pass→pass | 13,714 | 14,633 | +7% | 1 | 1 | 0% | 1,655 | 2,412 | +46% | 0 | 0 | — |
case-10 | fail→fail | 18,149 | 15,142 | -17% | 1 | 1 | 0% | 2,002 | 2,384 | +19% | 0 | 0 | — |
case-11 | fail→fail | 19,899 | 18,270 | -8% | 1 | 1 | 0% | 2,348 | 2,900 | +24% | 0 | 0 | — |
case-12 | fail→fail | 21,929 | 17,370 | -21% | 1 | 1 | 0% | 2,307 | 2,356 | +2% | 0 | 0 | — |
case-13 | fail→pass | 26,803 | 17,031 | -36% | 1 | 1 | 0% | 2,219 | 2,270 | +2% | 0 | 0 | — |
case-14 | pass→pass | 18,183 | 18,994 | +4% | 1 | 1 | 0% | 1,816 | 2,118 | +17% | 0 | 0 | — |
case-15 | pass→pass | 13,792 | 15,270 | +11% | 1 | 1 | 0% | 1,703 | 2,416 | +42% | 0 | 0 | — |
case-16 | pass→pass | 7,783 | 12,671 | +63% | 1 | 1 | 0% | 1,201 | 2,009 | +67% | 0 | 0 | — |
case-17 | pass→pass | 16,679 | 16,919 | +1% | 1 | 1 | 0% | 1,576 | 2,373 | +51% | 0 | 0 | — |
case-18 | pass→pass | 16,593 | 16,331 | -2% | 1 | 1 | 0% | 2,114 | 2,110 | -0% | 0 | 0 | — |
case-19 | fail→pass | 16,314 | 14,186 | -13% | 1 | 1 | 0% | 1,741 | 2,071 | +19% | 0 | 0 | — |
case-20 | fail→pass | 16,627 | 15,681 | -6% | 1 | 1 | 0% | 1,522 | 2,395 | +57% | 0 | 0 | — |
case-21 | pass→fail | 21,604 | 19,932 | -8% | 1 | 1 | 0% | 2,187 | 2,666 | +22% | 0 | 0 | — |
case-22 | pass→fail | 21,309 | 15,698 | -26% | 1 | 1 | 0% | 2,021 | 1,997 | -1% | 0 | 0 | — |
case-23 | pass→pass | 18,141 | 14,423 | -20% | 1 | 1 | 0% | 1,556 | 2,035 | +31% | 0 | 0 | — |
case-24 | pass→fail | 16,837 | 8,786 | -48% | 1 | 1 | 0% | 1,413 | 1,889 | +34% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 24 cases were attempted. The headline lift of +8 percentage points is the difference between those two pass rates over the 24 comparable cases. 3 cases got worse with the skill loaded, and they are included in that figure.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.