Constraint

Constraint is an AI Engineering skill for Claude Code, published by human-avatar in skills-for-humanity.

220 stars23 forkson human-avatar/skills-for-humanityAdded 2026/09/04Repository updated 2026/07/15

claude-codeclaude-code-plugincognitive-frameworkscreativitydecision-makingethicsmental-modelsproblem-solvingreasoningsystems-thinking

Install in seconds

Install Constraint

Copy Constraint into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/human-avatar/skills-for-humanity/tree/main/skills/s4h-constraint ~/.claude/skills/s4h-constraint

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/human-avatar/skills-for-humanity.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/s4h-constraint/SKILL.md in human-avatar/skills-for-humanity
Installs to: ~/.claude/skills/s4h-constraint
Collection: One of 25 skills cataloged from this repository
Category: AI Engineering — 2970 skills

What Constraint does

Constraint routes a situation to the right constraint-thinking tool when a limit is blocking progress. Use it to test whether a constraint is real, reduce scope, invert the rule, or map a workaround.

Constraint is cataloged under AI Engineering on DirSkills. Constraint comes from a repository tagged claude-code, claude-code-plugin, cognitive-frameworks, creativity and decision-making.

Documentation

README

Excerpt

Constraint

Applies constraint reasoning to any situation where limits are shaping (or blocking) what's possible. Diagnoses what kind of constraint work is needed and applies the right tool.

Which tool fits

You need to...	Tool
Test whether a stated constraint is actually real	hardness-testing
Flip a constraint into a creative driver	rule-inversion
Find the minimum that satisfies the actual requirement	scope-reduction
Find paths around a fixed constraint to reach the same goal	workaround-mapping

Routing Decision

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Constraint

What else does human-avatar publish alongside Constraint?
Constraint is one of 25 skills that DirSkills catalogs from human-avatar/skills-for-humanity, the repository it ships in. Its siblings there include Aesthetic, Aesthetic Coherence Check and Aesthetic Elegance Testing. Each one is a separate skill with its own page in this directory, installs the same way Constraint does, and is maintained by human-avatar in that same repository. The rest of the collection is listed on the human-avatar/skills-for-humanity page.
How does Constraint compare to other AI Engineering skills?
Constraint ranks #2580 by stars among the 2970 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Constraint against them. Open each page to compare what they document and how they install.