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Get Started Free →Understand the basics of investing enough to start sensibly — the core concepts, the simple default that works for most people, and the traps that separate beginners from their money. Use when asked how do I start investing, explain investing for beginners, I have money to invest but don't know how, or is investing worth it for me. Produces the essential concepts in plain language (risk, diversification, time, fees, compounding), the boring-but-effective default approach, the order of operations
.claude/skills/mohitagw15856-investing-for-beginners/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-03 | ✗→✓ | ▲ Improved | -14% | 0% |
| case-17 | ✗→✓ | ▲ Improved | 34% | 0% |
| case-18 | ✗→✓ | ▲ Improved | 15% | 0% |
| case-19 | ✗→✓ | ▲ Improved | 34% | 0% |
| case-04 | ✓→✗ | ▼ Worse | 43% | 0% |
Investing feels intimidating and full of jargon, which is exactly how beginners get separated from their money — by complexity, hype, and fees. The reality for most people is boring and effective: understand a few concepts, use a simple diversified default, and avoid the traps. This explains that clearly, so you can start sensibly. It's education, not financial advice — the specifics depend on you and your country.
Ask for these if not provided:
First, in place? emergency fund · high-interest debt cleared · employer match grabbed. (Invest after these.) Core concepts: risk/return · diversification · time · fees · compounding — plain explanations]. The boring default: low-cost diversified, long-term — why it beats most alternatives]. Match to timeline: near-term money safe; long-term can take market risk]. Beginner traps: high fees · hype/FOMO · timing the market · concentration · scams. Learn the specifics for region]: account types / tax / products — via proper resources].
> Educational only — not financial advice. Accounts, tax, and products vary by country; the right choices depend on your circumstances. Consider a fee-only adviser for personal guidance.
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | pass→pass | 23,748 | 19,803 | -17% | 1 | 1 | 0% | 3,196 | 3,507 | +10% | 0 | 0 | — |
case-02 | pass→pass | 25,091 | 22,414 | -11% | 1 | 1 | 0% | 2,998 | 3,677 | +23% | 0 | 0 | — |
case-03 | fail→pass | 28,887 | 22,196 | -23% | 1 | 1 | 0% | 4,230 | 3,629 | -14% | 0 | 0 | — |
case-04 | pass→fail | 26,872 | 26,889 | +0% | 1 | 1 | 0% | 3,403 | 4,878 | +43% | 0 | 0 | — |
case-05 | pass→fail | 20,703 | 21,450 | +4% | 1 | 1 | 0% | 2,828 | 3,767 | +33% | 0 | 0 | — |
case-06 | pass→fail | 25,599 | 17,649 | -31% | 1 | 1 | 0% | 5,865 | 4,312 | -26% | 0 | 0 | — |
case-07 | pass→fail | 18,300 | 44,970 | +146% | 1 | 1 | 0% | 3,819 | 8,891 | +133% | 0 | 0 | — |
case-08 | pass→pass | 17,907 | 21,332 | +19% | 1 | 1 | 0% | 3,093 | 3,866 | +25% | 0 | 0 | — |
case-09 | pass→pass | 22,040 | 19,415 | -12% | 1 | 1 | 0% | 2,981 | 3,410 | +14% | 0 | 0 | — |
case-10 | pass→pass | 24,249 | 20,581 | -15% | 1 | 1 | 0% | 3,295 | 3,396 | +3% | 0 | 0 | — |
case-11 | pass→pass | 17,683 | 19,704 | +11% | 1 | 1 | 0% | 2,939 | 3,504 | +19% | 0 | 0 | — |
case-12 | pass→pass | 22,872 | 14,696 | -36% | 1 | 1 | 0% | 3,141 | 3,496 | +11% | 0 | 0 | — |
case-13 | pass→pass | 21,097 | 18,454 | -13% | 1 | 1 | 0% | 2,714 | 3,276 | +21% | 0 | 0 | — |
case-14 | pass→pass | 16,262 | 16,222 | -0% | 1 | 1 | 0% | 2,613 | 2,940 | +13% | 0 | 0 | — |
case-15 | pass→pass | 14,594 | 20,023 | +37% | 1 | 1 | 0% | 2,344 | 3,533 | +51% | 0 | 0 | — |
case-22 | pass→pass | 21,012 | 17,521 | -17% | 1 | 1 | 0% | 2,264 | 3,106 | +37% | 0 | 0 | — |
case-16 | pass→pass | 19,688 | 18,929 | -4% | 1 | 1 | 0% | 2,671 | 3,608 | +35% | 0 | 0 | — |
case-17 | fail→pass | 16,348 | 16,646 | +2% | 1 | 1 | 0% | 3,120 | 4,176 | +34% | 0 | 0 | — |
case-18 | fail→pass | 26,005 | 22,874 | -12% | 1 | 1 | 0% | 3,026 | 3,472 | +15% | 0 | 0 | — |
case-19 | fail→pass | 21,353 | 23,231 | +9% | 1 | 1 | 0% | 3,019 | 4,036 | +34% | 0 | 0 | — |
case-20 | pass→pass | 26,116 | 21,062 | -19% | 1 | 1 | 0% | 3,135 | 3,463 | +10% | 0 | 0 | — |
case-21 | pass→pass | 11,077 | 19,002 | +72% | 1 | 1 | 0% | 1,870 | 3,408 | +82% | 0 | 0 | — |
case-23 | pass→pass | 25,510 | 21,510 | -16% | 1 | 1 | 0% | 3,466 | 3,487 | +1% | 0 | 0 | — |
case-24 | pass→pass | 22,938 | 10,819 | -53% | 1 | 1 | 0% | 3,081 | 2,755 | -11% | 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 0 percentage points is the difference between those two pass rates over the 24 comparable cases. 4 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.