Vibe-Skills is a collection and routing system that helps AI agents discover, select, and coordinate specialized skills for completing tasks. It is intended for agents that need to organize workflows across many installed capabilities. The catalogue entries are skills and an agent belonging to this system.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add foryourhealth111-pixel/Vibe-Skills --skill math-toolsgit clone --depth 1 https://github.com/foryourhealth111-pixel/Vibe-SkillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/foryourhealth111-pixel/vibe-skills/math-tools)<a href="https://agentmods.dev/skills/foryourhealth111-pixel/vibe-skills/math-tools"><img src="https://agentmods.dev/badge/skills/foryourhealth111-pixel/vibe-skills/math-tools/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/foryourhealth111-pixel/vibe-skills/math-tools"><img src="https://agentmods.dev/badge/skills/foryourhealth111-pixel/vibe-skills/math-tools.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00097 | $0.01493 |
| Opus 5.5 | $0.00039 | $0.00597 |
| Sonnet 5.5 | $0.00019 | $0.00299 |
| Haiku 4.5 | $0.00010 | $0.00149 |
Grade A, and why
math-tools scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Math Tools
Deterministic mathematical computation engine using SymPy. All calculations use symbolic math - no LLM estimation.
When to Use
Use this skill whenever mathematical accuracy matters:
- Arithmetic involving fractions, roots, or large numbers
- Algebraic simplification, expansion, factoring
- Solving equations (polynomial, transcendental, systems)
- Calculus (derivatives, integrals, limits, series)
- Linear algebra (matrices, eigenvalues, determinants)
- Number theory (primes, factorization, GCD/LCM)
- Statistical calculations
Quick Start
Run the calculator script with operation and arguments:
python scripts/math_calculator.py <operation> <args...>
All results return JSON with result, latex, and numeric fields.
Core Operations
Arithmetic
python scripts/math_calculator.py add 5 3 2 # 10
python scripts/math_calculator.py multiply 2 3 4 # 24
python scripts/math_calculator.py divide 10 4 # 5/2 (exact)
python scripts/math_calculator.py sqrt 8 # 2*sqrt(2)
python scripts/math_calculator.py factorial 10 # 3628800
Algebra
# Simplify
python scripts/math_calculator.py simplify "(x**2 - 1)/(x - 1)"
# → x + 1
# Expand
python scripts/math_calculator.py expand "(x + 1)**3"
# → x**3 + 3*x**2 + 3*x + 1
# Factor
python scripts/math_calculator.py factor "x**3 - 8"
# → (x - 2)*(x**2 + 2*x + 4)
# Solve equations
python scripts/math_calculator.py solve "x**2 - 5*x + 6" x
# → [2, 3]
python scripts/math_calculator.py solve "2*x + 3 = 7" x
# → [2]
Calculus
# Derivative
python scripts/math_calculator.py derivative "x**3 + sin(x)" x
# → 3*x**2 + cos(x)
# Second derivative
python scripts/math_calculator.py derivative "x**4" x 2
# → 12*x**2
# Indefinite integral
python scripts/math_calculator.py integrate "x**2" x
# → x**3/3
# Definite integral
python scripts/math_calculator.py integrate "x**2" x 0 1
# → 1/3
# Limit
python scripts/math_calculator.py limit "sin(x)/x" x 0
# → 1
# Limit at infinity
python scripts/math_calculator.py limit "(x**2 + 1)/(x**2 - 1)" x oo
# → 1
# Taylor series
python scripts/math_calculator.py series "exp(x)" x 0 5
# → 1 + x + x**2/2 + x**3/6 + x**4/24 + O(x**5)
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 181 lines · 97 tokens per session scan A 09eaacb9c98b
math-tools is a skill published in the GitHub repository foryourhealth111-pixel/Vibe-Skills (3,769 stars, last pushed yesterday), licensed Apache-2.0. It adds 97 tokens to every session and 1,493 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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