Agent skill

Jacobian Math

by morluto in morluto/jacobian

Use Jacobian’s typed operations when exact computation or structural analysis can help solve a mathematical problem.

MITAuto-check passedResearch & Science

Install Jacobian Math

skills CLI
$ npx skills add morluto/jacobian --skill jacobian-math -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install morluto/jacobian jacobian-math --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/morluto/jacobian.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/jacobian-math .claude/skills/jacobian-math && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
jacobian-math
GitHub stars
211
Token cost
~214 tokens
SKILL.md length
98 words
Files
2
Skills in repo
11
Repo updated
First seen
Licence
MIT

At a glance

Use Jacobian’s typed operations when exact computation or structural analysis can help solve a mathematical problem.

  • Tasks that involve Math and symbolic computation
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Jacobian Math is an agent skill from morluto/jacobian. Use Jacobian’s typed operations when exact computation or structural analysis can help solve a mathematical problem.

Its SKILL.md is about 210 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).

It sits in Research & Science, covering Math and symbolic computation. It works with Model Context Protocol and Python. The repository describes itself as: Composable mathematics tools for agents. The licence is MIT.

When your agent uses it

  • Tasks that involve Math and symbolic computation

Example prompts

  • “/jacobian-math”

Requirements

  • Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit 9dc2aaf. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Jacobian Math loads about 214 tokens when it runs. Until then it costs about 33 tokens; SKILL.md has 98 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~33
When it runs · the whole SKILL.md, loaded when a task matches
~214

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from morluto/jacobian at commit 9dc2aaf, republished under its MIT licence (© morluto). 98 words, ~214 tokens.

Download SKILL.mdSave it as .claude/skills/jacobian-math/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
jacobian-math
description
Use Jacobian’s typed operations when exact computation or structural analysis can help solve a mathematical problem.

Jacobian Math Tools

Jacobian is a local library of typed mathematical operations for computation and structural analysis.

Use math.find as the library-navigation tool: search for a desired outcome, browse an unfamiliar domain, or inspect an operation's schema and examples. Use math.run to execute a selected operation and obtain its typed result. Feed results into later reasoning, further Jacobian operations, or Python scratch work as useful.

The operations are composable. Choose the representation, decomposition, order of operations, and stopping point that fit the problem. Reach for the library proactively when exact computation, finite search, or structural analysis may help.

© morluto, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in .agents/skills/jacobian-math of morluto/jacobian.

  • SKILL.md
  • agents/openai.yaml

Open the folder on GitHubat commit 9dc2aaf

Compare with similar skills

Jacobian Math next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Jacobian Math compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Jacobian Math this skillmorluto/jacobian211—~214Automated safety check: PassMIT
Setup MedsciAperivue/medsci-skills331—~960Automated safety check: PassMIT
Deep Research MCP Guidepminervini/deep-research-mcp113—~5.8kAutomated safety check: PassMIT
Aer Statspaibrycewang-stanford/Auto-Empirical-Research-Skills4.5k—~3kAutomated safety check: PassCustom licence
SympyzLanqing/codex-claude-academic-skills4.7k15 repos~3.4kAutomated safety check: PassMIT
Edu Analytic Geometrywy51ai/edulab1.4k1 repos~1.6kAutomated safety check: PassApache-2.0

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  • Extract reusable Jacobian capabilities from a mathematical solution corpus, rather than one agent trajectory.

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  • Review mathematical agent trajectories for evidence-backed Jacobian improvements; do not resume solving.

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Questions about Jacobian Math

What does Jacobian Math do?

Use Jacobian’s typed operations when exact computation or structural analysis can help solve a mathematical problem. Jacobian Math is an agent skill from morluto/jacobian. Use Jacobian’s typed operations when exact computation or structural analysis can help solve a mathematical problem.

When should I use Jacobian Math?

Jacobian Math fits situations like: tasks that involve Math and symbolic computation.

How do I install Jacobian Math in Claude Code?

Run `npx skills add morluto/jacobian --skill jacobian-math -a claude-code`. Or copy the skill folder (.agents/skills/jacobian-math in morluto/jacobian) into .claude/skills/jacobian-math in your project. Claude Code loads it when a task matches its description.

How do I install Jacobian Math in Codex?

Run `npx skills add morluto/jacobian --skill jacobian-math -a codex`. Or copy the skill folder (.agents/skills/jacobian-math in morluto/jacobian) into .agents/skills/jacobian-math in your project. Codex loads it when a task matches its description.

Can I use Jacobian Math in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add morluto/jacobian --skill jacobian-math -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/jacobian-math, .gemini/skills/jacobian-math, .github/skills/jacobian-math and .opencode/skills/jacobian-math in your project.

What does Jacobian Math need to run?

SKILL.md names no scripts, command-line tools or credentials: Jacobian Math is instructions for the agent only. Our summary lists: Python 3.

Does Jacobian Math access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Jacobian Math safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Jacobian Math use?

Jacobian Math is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Jacobian Math use?

About 214 tokens (SKILL.md is roughly 856 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Jacobian Math?

Skills that share tags, products or a category with Jacobian Math: Setup Medsci (Aperivue/medsci-skills, 331 stars), Deep Research MCP Guide (pminervini/deep-research-mcp, 113 stars), Aer Statspai (brycewang-stanford/Auto-Empirical-Research-Skills, 4.5k stars) and Sympy (zLanqing/codex-claude-academic-skills, 4.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Jacobian Math?

morluto (a GitHub user) maintains it in morluto/jacobian, which has 211 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 5, 2026.

Source: morluto/jacobian on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.