How do I install the Check Lower Compat Bounds skill?

Run npx skillmds@latest add tomevault-io/check-lower-compat-bounds in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Check Lower Compat Bounds skill do?

Test whether the lower compat bounds in Project.toml are still resolvable. Identifies stale bounds, dead version ranges, and suggests updates. Use when this capability is needed. It is listed under Coding & Dev Tools on SkillMD.

Is Check Lower Compat Bounds safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Check Lower Compat Bounds?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Check Lower Compat Bounds free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Check Lower Compat Bounds?

tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Check Lower Compat Bounds by tomevault-io

Name: Check Lower Compat Bounds
Author: tomevault-io

File contents

You are checking the lower compat bounds of a Julia package for staleness.

How it works

The script check_lower_compat_bounds.jl (in the same directory as this skill) does the heavy lifting:

Parses all compat entries from Project.toml
For each dependency, tests whether the lower bound resolves in a fresh temp environment
Binary searches for the true minimum resolvable version when a bound fails
Reports dead ranges, stale bounds, and OK bounds
Saves suggestions to .compat_suggestions.toml and prompts to apply

Steps

Run the script and let it complete (it takes a while, one temp environment per test):

julia .claude/skills/check-lower-compat-bounds/check_lower_compat_bounds.jl

The script will print a report and prompt to apply changes. If the user declines, the suggestions are saved and can be applied later with:

julia .claude/skills/check-lower-compat-bounds/check_lower_compat_bounds.jl --apply

Do NOT commit automatically. Let the user decide how to handle that.

Important context

A bound that fails resolution is definitively stale: no user can install that version combination. This is caused by transitive dependency constraints, not bugs in this package.
A bound that passes resolution is not guaranteed to pass tests. If the user wants deeper validation, offer to run the test suite with specific deps pinned to their lower bounds.
The script skips stdlibs (LinearAlgebra, Printf, etc.) since those are tied to the Julia version.

Source: nathanaelbosch/ProbNumDiffEq.jl — distributed by TomeVault.

Frequently asked questions

Check Lower Compat Bounds