number-theory-toolkit
Provide number theory algorithm implementations and guidance
npx skills add a5c-ai/babysitter --skill number-theory-toolkit --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Number Theory Toolkit Skill ## Purpose Provide implementations and guidance for number theory algorithms commonly used in competitive programming. ## Capabilities - Modular arithmetic operations - Extended Euclidean algorithm - Chinese Remainder Theorem - Modular inverse and exponentiation - FFT/NTT for polynomial multiplication - Linear sieve implementations ## Target Processes - number-theory-algorithms - prime-algorithms - combinatorics-counting ## Algorithm Catalog ### Modular Arithmetic - Modular exponentiation (binary exp) - Modular inverse (Fermat/Extended GCD) - Modular square root (Tonelli-Shanks) ### GCD and Extensions - Euclidean algorithm - Extended Euclidean algorithm - Linear Diophantine equations ### Chinese Remainder Theorem - CRT for coprime moduli - General CRT ### FFT/NTT - Fast Fourier Transform - Number Theoretic Transform - Polynomial multiplication ## Input Schema ```json { "type": "object", "properties": { "algorithm": { "type": "string" }, "parameters": { "type": "object" }, "language": { "type": "string", "enum": ["cpp", "python", "java"] }, "modulo": { "type": "integer" } }, "required": ["algorithm"] } ``` ## Output Schema ```json { "type": "object", "p
- Purpose
- Capabilities
- Target Processes
- Algorithm Catalog
- Modular Arithmetic
- GCD and Extensions
- Chinese Remainder Theorem
- FFT/NTT
- Input Schema
- Output Schema
What does the number-theory-toolkit skill do?
Provide number theory algorithm implementations and guidance
How do I install it?
Run `npx skills add a5c-ai/babysitter --skill number-theory-toolkit --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.