principle-model-the-domain

An agent skill by cursor, from cursor/plugins. Tags: architecture, data, database, design, development.

What it does

Apply when writing stateful logic, or when code branches a lot or repeats a shape assumption across files. Encode the domain in a structure instead of scattered conditionals.

Install

With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:

npx skills add cursor/plugins --skill principle-model-the-domain

Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):

git clone --depth 1 https://github.com/cursor/plugins
cp -r plugins/pstack/skills/principle-model-the-domain ~/.claude/skills/principle-model-the-domain

Safety box score

Grade A, minimal risk: 0 of 100 risk points, rated 2026-10-16. The grade rates what the skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. How the score works.

This skill is a guidance-only markdown document about refactoring code to model domain state more cleanly. It does not ship scripts, network calls, or file-mutating logic, so the main impact is on how an agent writes code rather than on the machine itself.

Category levels, from 0 (none) to 3 (high)
Category	Level	Why
Code & shell execution	0 (none)	`SKILL.md` contains only prose guidance and no shell commands, code evaluation, or native scripts.
Network access	0 (none)	There are no URL fetches, API calls, or data exfiltration paths in the file.
Filesystem reach	0 (none)	The skill does not read, write, or delete files; it only describes modeling techniques.
Secrets & credentials	0 (none)	No credentials, token, `.env`, keychain, or login handling is mentioned.
Privilege & persistence	0 (none)	There is no sudo, global install, service registration, or OS/shell configuration behavior.
Instruction hijack surface	0 (none)	The text does not ask the agent to ignore instructions, hide behavior, or follow remote content; `disable-model-invocation: true` is just metadata.
Irreversible actions	0 (none)	It does not send messages, deploy, publish, delete, or otherwise act on the user's behalf.
Transparency	0 (none)	The only source provided is readable markdown; there are no binaries, minified files, or decoded-at-runtime payloads.

Before installing

No special install checks are needed for this skill; it is documentation only.
If you want to verify scope, read `SKILL.md` and confirm there are no accompanying scripts or binaries in the skill directory.

Rated 2026-10-16 by an automated review of 1 file from the skill's repository.

Source

Repository: cursor/plugins (all skills from this repository)
Path: pstack/skills/principle-model-the-domain/SKILL.md
Branch: main
Collection: cursor
Updated: 2026-09-23

architect — Sketch types, signatures, and module structure before code, then stay in the loop while implementation fills in.
principle-foundational-thinking — Apply before writing logic: choosing core types and data structures, sequencing scaffold-vs-feature work, asking what concurrent actors share.
domain-modeling — Build and sharpen a project's domain model. Use when discussing codebase terminology, writing or editing a GLOSSARY.md, or recording or editing an ADR.
how — Use for "how does X work", code walkthroughs before changing something, and placement / ownership / layering questions ("where should this live".
principle-boundary-discipline — Apply when wiring validation, error handling, or framework adapters.
principle-exhaust-the-design-space — Apply when facing a novel UI interaction or architectural decision with no precedent in the codebase.