Nodejs Backend Patterns
ever-works/ever-works
Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices.
Add an infrastructure use-case wired through a provider and app service using Result.
Install New Use Case
$ npx skills add mirumee/nimara-ecommerce --skill new-use-case -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mirumee/nimara-ecommerce new-use-case --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mirumee/nimara-ecommerce.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/new-use-case .claude/skills/new-use-case && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "new-use-case" agent skill from https://github.com/mirumee/nimara-ecommerce/tree/main/.claude/skills/new-use-case into .claude/skills/new-use-case/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-use-case", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mirumee/nimara-ecommerce/tree/main/.claude/skills/new-use-caseType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mirumee/nimara-ecommerce --skill new-use-case -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mirumee/nimara-ecommerce new-use-case --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mirumee/nimara-ecommerce.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/new-use-case .agents/skills/new-use-case && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "new-use-case" agent skill from https://github.com/mirumee/nimara-ecommerce/tree/main/.claude/skills/new-use-case into .agents/skills/new-use-case/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-use-case", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mirumee/nimara-ecommerce --skill new-use-case -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mirumee/nimara-ecommerce new-use-case --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mirumee/nimara-ecommerce.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/new-use-case .cursor/skills/new-use-case && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "new-use-case" agent skill from https://github.com/mirumee/nimara-ecommerce/tree/main/.claude/skills/new-use-case into .cursor/skills/new-use-case/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-use-case", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mirumee/nimara-ecommerce.git --path .claude/skills/new-use-case--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mirumee/nimara-ecommerce --skill new-use-case -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mirumee/nimara-ecommerce new-use-case --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mirumee/nimara-ecommerce.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/new-use-case .gemini/skills/new-use-case && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "new-use-case" agent skill from https://github.com/mirumee/nimara-ecommerce/tree/main/.claude/skills/new-use-case into .gemini/skills/new-use-case/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-use-case", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mirumee/nimara-ecommerce new-use-caseInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mirumee/nimara-ecommerce --skill new-use-case -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mirumee/nimara-ecommerce.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/new-use-case .github/skills/new-use-case && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "new-use-case" agent skill from https://github.com/mirumee/nimara-ecommerce/tree/main/.claude/skills/new-use-case into .github/skills/new-use-case/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-use-case", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mirumee/nimara-ecommerce --skill new-use-case -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mirumee/nimara-ecommerce new-use-case --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mirumee/nimara-ecommerce.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/new-use-case .opencode/skills/new-use-case && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "new-use-case" agent skill from https://github.com/mirumee/nimara-ecommerce/tree/main/.claude/skills/new-use-case into .opencode/skills/new-use-case/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "new-use-case", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
new-use-case- GitHub stars
- 129
- Token cost
- ~362 tokens
- SKILL.md length
- 131 words
- Files
- 1
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- BSD-3-Clause
At a glance
Add an infrastructure use-case wired through a provider and app service using Result.
- Works in 6 steps: Types — define shared request, response,… → Implementation — add the use-case under → Expose — surface the operation through… → …
- Implementing a new external-operation
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Integration use-case
What it does
New Use Case is an agent skill from mirumee/nimara-ecommerce. Add an infrastructure use-case wired through a provider and app service using Result. Use when implementing a new external-operation or integration use-case.
Its SKILL.md is about 360 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Backend & APIs. It works with GraphQL and shadcn/ui. The repository describes itself as: Headless, composable ecommerce storefront built with Next.js, Typescript, and shadcn/ui. The licence is BSD-3-Clause.
When your agent uses it
- Implementing a new external-operation
- Integration use-case
Example prompts
- “/new-use-case”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Types — define shared request, response, and entity types in packages/domain, or
- Implementation — add the use-case under
- Expose — surface the operation through the relevant provider-neutral contract and
- Consume — wire it through the app service registry and lazy loader. Apps must not
- Generate — invoke /codegen-check after changing GraphQL documents.
- Test — cover both success and expected-failure Result paths.
What it can do on your machine
Read from SKILL.md and the folder at commit c2ad30b. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
New Use Case loads about 362 tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 131 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from mirumee/nimara-ecommerce at commit c2ad30b, republished under its BSD-3-Clause licence (© mirumee). 131 words, ~362 tokens.
Download SKILL.mdSave it as
.claude/skills/new-use-case/SKILL.md (or your agent's skills folder).- name
- new-use-case
- description
- Add an infrastructure use-case wired through a provider and app service using Result. Use when implementing a new external-operation or integration use-case.
- argument-hint
- <use-case name and behavior>
Add an infrastructure use-case
Create this use-case: $ARGUMENTS
Read packages/infrastructure/CLAUDE.md and
.claude/skills/project-guidelines/SKILL.md. Mirror the closest existing pattern under
packages/infrastructure/src/use-cases/<domain>/.
- Types — define shared request, response, and entity types in
packages/domain, or keep use-case-specific types beside the infrastructure contract. - Implementation — add the use-case under
packages/infrastructure/src/use-cases/<domain>/. Place provider implementation and GraphQL documents under the matching provider directory. ReturnResult<T, E>orAsyncResult<T, E>from@nimara/domain/objects/Result. - Expose — surface the operation through the relevant provider-neutral contract and provider implementation.
- Consume — wire it through the app service registry and lazy loader. Apps must not
import
@nimara/codegendirectly. - Generate — invoke
/codegen-checkafter changing GraphQL documents. - Test — cover both success and expected-failure Result paths.
Report the files created, the provider contract, and the service entry point the app calls.
Do not invoke /pre-ship.
© mirumee, BSD-3-Clause. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .claude/skills/new-use-case of mirumee/nimara-ecommerce.
Open the folder on GitHubat commit c2ad30b
Compare with similar skills
New Use Case next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| New Use Case this skillmirumee/nimara-ecommerce | 129 | — | ~362 | Automated safety check: Pass | BSD-3-Clause | |
| Nodejs Backend Patternsever-works/ever-works | 162 | 18 repos | ~4k | Automated safety check: Pass | AGPL-3.0 | |
| Use Yaakmountain-loop/yaak | 19k | — | ~1.9k | Automated safety check: Pass | MIT | |
| API DesignerJeffallan/claude-skills | 12k | 1 repos | ~2k | Automated safety check: Pass | MIT | |
| GraphQL Operations with CodegenChrisWiles/claude-code-showcase | 6.1k | 3 repos | ~1.5k | Automated safety check: Pass | None | |
| Nestjs Trpctrycompai/crm | 11k | — | ~2.8k | Automated safety check: Pass | MIT |
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Questions about New Use Case
What does New Use Case do?
Add an infrastructure use-case wired through a provider and app service using Result. New Use Case is an agent skill from mirumee/nimara-ecommerce. Add an infrastructure use-case wired through a provider and app service using Result.
When should I use New Use Case?
New Use Case fits situations like: implementing a new external-operation; integration use-case.
How do I install New Use Case in Claude Code?
Run `npx skills add mirumee/nimara-ecommerce --skill new-use-case -a claude-code`. Or copy the skill folder (.claude/skills/new-use-case in mirumee/nimara-ecommerce) into .claude/skills/new-use-case in your project. Claude Code loads it when a task matches its description.
How do I install New Use Case in Codex?
Run `npx skills add mirumee/nimara-ecommerce --skill new-use-case -a codex`. Or copy the skill folder (.claude/skills/new-use-case in mirumee/nimara-ecommerce) into .agents/skills/new-use-case in your project. Codex loads it when a task matches its description.
Can I use New Use Case in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mirumee/nimara-ecommerce --skill new-use-case -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/new-use-case, .gemini/skills/new-use-case, .github/skills/new-use-case and .opencode/skills/new-use-case in your project.
What does New Use Case need to run?
SKILL.md names no scripts, command-line tools or credentials: New Use Case is instructions for the agent only.
Does New Use Case access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is New Use Case safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does New Use Case use?
New Use Case is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does New Use Case use?
About 362 tokens (SKILL.md is roughly 1.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to New Use Case?
Skills that share tags, products or a category with New Use Case: Nodejs Backend Patterns (ever-works/ever-works, 162 stars), Use Yaak (mountain-loop/yaak, 19k stars), API Designer (Jeffallan/claude-skills, 12k stars) and GraphQL Operations with Codegen (ChrisWiles/claude-code-showcase, 6.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains New Use Case?
mirumee (a GitHub organization) maintains it in mirumee/nimara-ecommerce, which has 129 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on October 8, 2026.
Source: mirumee/nimara-ecommerce on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.