SciML/Catalyst.jl

Expand unit checking

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#1,400 opened on Feb 9, 2026

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enhancementgood first issuehelp wanted

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Description

Let's maintain a list of ways units checking could be improved:

  • Check user-provided jumps (Poissonians are handled though within equations).
  • Check events.

Contributor guide

Research direction
Examine the existing unit checking code in Catalyst.jl, specifically how Poissonians are handled within equations, and extend the checks to user provided jumps and events.
Tech stack
julia
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
JuliaCatalyst.jl
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70