Mathematical tool for solving and verifying continuity problems in real analysis.

Install

mkdir -p .claude/skills/continuity && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/3008" && unzip -o skill.zip -d .claude/skills/continuity && rm skill.zip

Installs to .claude/skills/continuity

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

Problem-solving strategies for continuity in real analysis
58 charsno explicit “when” trigger
Intermediate

Key capabilities

  • Computes function limits at specific points
  • Verifies continuity conditions for piecewise functions
  • Performs one-sided limit calculations
  • Proves continuity theorems using logic solvers

How it works

It uses a symbolic math backend to calculate limits and a constraint solver to verify the identity of the limit and function value.

Inputs & outputs

You give it
A mathematical function and a point of interest
You get back
Limit verification or continuity status

When to use continuity

  • Check function limit at a point
  • Verify continuity of piecewise functions
  • Compute left and right limits
  • Prove continuity theorems

About this skill

Continuity

When to Use

Use this skill when working on continuity problems in real analysis.

Decision Tree

  1. Check Definition

    • f(a) exists (function defined at point)
    • lim_{x->a} f(x) exists
    • lim_{x->a} f(x) = f(a)
  2. Use SymPy for Limit Check

    • sympy_compute.py limit "f(x)" --var x --at a
    • Compare with f(a)
  3. Piecewise Functions

    • Check left and right limits separately
    • sympy_compute.py limit "f(x)" --var x --at a --dir left
  4. Verify with Z3

    • z3_solve.py prove "limit_exists implies continuous"

Tool Commands

Sympy_Limit

uv run python -m runtime.harness scripts/sympy_compute.py limit "f(x)" --var x --at a

Sympy_Limit_Left

uv run python -m runtime.harness scripts/sympy_compute.py limit "f(x)" --var x --at a --dir left

Z3_Prove

uv run python -m runtime.harness scripts/z3_solve.py prove "continuous_at_a"

Cognitive Tools Reference

See .claude/skills/math-mode/SKILL.md for full tool documentation.

When not to use it

  • Numerical simulation or graphing of functions
  • Non-real-analysis mathematical problems

Prerequisites

pythonuv

Limitations

  • Limited to functions representable by SymPy
  • Requires explicit function definition to calculate limits

How it compares

It performs exact limit calculation rather than estimating via sampling or manual computation.

Compared to similar skills

continuity side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
continuity (this skill)17moReviewIntermediate
literature-review5592moReviewAdvanced
openalex-database487moReviewIntermediate
scientific-critical-thinking187moReviewAdvanced

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