Backend Dev Guidelines
litefuse/litefuse
Comprehensive backend development guide for Litefuse's Next.js 14/tRPC/Express/TypeScript monorepo.
Enforce multi-tenant isolation and PostgreSQL Row Level Security in NestJS.
Install Nestjs Security Isolation
$ npx skills add HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-security-isolation --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/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/nestjs/nestjs-security-isolation .claude/skills/nestjs-security-isolation && 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 "nestjs-security-isolation" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-security-isolation into .claude/skills/nestjs-security-isolation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-security-isolation", 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/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-security-isolationType 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 HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-security-isolation --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/nestjs/nestjs-security-isolation .agents/skills/nestjs-security-isolation && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "nestjs-security-isolation" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-security-isolation into .agents/skills/nestjs-security-isolation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-security-isolation", 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 HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-security-isolation --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/nestjs/nestjs-security-isolation .cursor/skills/nestjs-security-isolation && 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 "nestjs-security-isolation" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-security-isolation into .cursor/skills/nestjs-security-isolation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-security-isolation", 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/HoangNguyen0403/agent-skills-standard.git --path skills/nestjs/nestjs-security-isolation--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 HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-security-isolation --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/nestjs/nestjs-security-isolation .gemini/skills/nestjs-security-isolation && 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 "nestjs-security-isolation" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-security-isolation into .gemini/skills/nestjs-security-isolation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-security-isolation", 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 HoangNguyen0403/agent-skills-standard nestjs-security-isolationInstalls 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 HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/nestjs/nestjs-security-isolation .github/skills/nestjs-security-isolation && 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 "nestjs-security-isolation" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-security-isolation into .github/skills/nestjs-security-isolation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-security-isolation", 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 HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-security-isolation --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/nestjs/nestjs-security-isolation .opencode/skills/nestjs-security-isolation && 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 "nestjs-security-isolation" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-security-isolation into .opencode/skills/nestjs-security-isolation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-security-isolation", 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
nestjs-security-isolation- GitHub stars
- 572
- Token cost
- ~547 tokens
- SKILL.md length
- 208 words
- Files
- 5 (incl. references)
- Skills in repo
- 211
- Repo updated
- First seen
- Licence
- MIT
At a glance
Enforce multi-tenant isolation and PostgreSQL Row Level Security in NestJS.
- Works in 4 steps: Migration: Create tables with ENABLE ROW… → Entity Logic: Add @Security JSDoc to… → Security Doc: Update SECURITY.md with… → …
- Enforcing tenant isolation
- SKILL.md covers Priority: P0 (CRITICAL), RLS Enforcement Workflow, Core Guidelines and Anti-Patterns, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Nestjs Security Isolation is an agent skill from HoangNguyen0403/agent-skills-standard. Enforce multi-tenant isolation and PostgreSQL Row Level Security in NestJS. Use when enforcing tenant isolation or PostgreSQL RLS in NestJS multi-tenant apps.
Its SKILL.md is about 550 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `evals/evals.json`, `references/auth-logic.md` and `references/implementation-patterns.md`).
It sits in Backend & APIs, covering Multi-tenancy. It works with NestJS and PostgreSQL. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.
When your agent uses it
- Enforcing tenant isolation
- PostgreSQL RLS in NestJS multi-tenant apps
Example prompts
- “/nestjs-security-isolation”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Migration: Create tables with ENABLE ROW LEVEL SECURITY. Define policies using current_setting('app.current_user_id').
- Entity Logic: Add @Security JSDoc to entity class.
- Security Doc: Update SECURITY.md with new table and its access logic.
- Service Validation: Call childrenService.validateChildAccess(childId, userId) before any persistence operation.
What it can do on your machine
Read from SKILL.md and the folder at commit b529c2d. 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
Nestjs Security Isolation loads about 547 tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 46 tokens; SKILL.md has 208 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 HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 208 words, ~547 tokens.
Download SKILL.mdSave it as
.claude/skills/nestjs-security-isolation/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.- name
- nestjs-security-isolation
- description
- Enforce multi-tenant isolation and PostgreSQL Row Level Security in NestJS. Use when enforcing tenant isolation or PostgreSQL RLS in NestJS multi-tenant apps.
Priority: P0 (CRITICAL)
Strict multi-tenant isolation. All child-centric data must secured via PostgreSQL RLS and service-level validation.
RLS Enforcement Workflow
- Migration: Create tables with
ENABLE ROW LEVEL SECURITY. Define policies usingcurrent_setting('app.current_user_id'). - Entity Logic: Add
@SecurityJSDoc to entity class. - Security Doc: Update
SECURITY.mdwith new table and its access logic. - Service Validation: Call
childrenService.validateChildAccess(childId, userId)before any persistence operation.
Core Guidelines
- Mandatory RLS: Every new table linking to
childorfamilyMUST RLS enabled in its creation migration. - Centralized Validation: Never reimplement access logic. Use
ChildrenServicefor child/family membership checks. - Traceable Security:
SECURITY.mdsource of truth. Any change to RLS policies must reflected there immediately. - Nested Route Constraint: Data isolation enforced at controller level via nested routes:
/children/:childId/.... - No Direct Entity exposure: Use Response DTOs to prevent leaking internal database IDs or metadata that could circumvent security checks.
Anti-Patterns
- No Public Tables: Don't create child-linked tables without RLS.
- No Manual Policy Checks: Don't write raw SQL access checks in services. Use centralized validator.
- No Stale Docs: Don't merge RLS changes without updating
SECURITY.mdand entity JSDoc. - No Root IDs: Don't use
/domain/:idfor child data. Always scope by:childId.
References
© HoangNguyen0403, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 4 other files (references) in skills/nestjs/nestjs-security-isolation of HoangNguyen0403/agent-skills-standard.
- SKILL.md
- evals/evals.json
- references/auth-logic.md
- references/implementation-patterns.md
- references/rls-patterns.md
Open the folder on GitHubat commit b529c2d
Compare with similar skills
Nestjs Security Isolation 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 |
|---|---|---|---|---|---|---|
| Nestjs Security Isolation this skillHoangNguyen0403/agent-skills-standard | 572 | — | ~547 | Automated safety check: Pass | MIT | |
| Backend Dev Guidelineslitefuse/litefuse | 101 | 1 repos | ~5.8k | Automated safety check: Pass | Custom licence | |
| Backend AI Guidelablup/backend.ai-webui | 133 | 1 repos | ~1.8k | Automated safety check: Pass | LGPL-3.0 | |
| Stash Zerokmscipherstash/stack | 157 | — | ~4.4k | Automated safety check: Pass | MIT | |
| SaaS Multi Tenantdavila7/claude-code-templates | 33k | 3 repos | ~3.1k | Automated safety check: Pass | MIT | |
| Aurora Dsqlaws/agent-toolkit-for-aws | 2.8k | — | ~9.6k | Automated safety check: Pass | Apache-2.0 |
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Questions about Nestjs Security Isolation
What does Nestjs Security Isolation do?
Enforce multi-tenant isolation and PostgreSQL Row Level Security in NestJS. Nestjs Security Isolation is an agent skill from HoangNguyen0403/agent-skills-standard. Enforce multi-tenant isolation and PostgreSQL Row Level Security in NestJS.
When should I use Nestjs Security Isolation?
Nestjs Security Isolation fits situations like: enforcing tenant isolation; postgreSQL RLS in NestJS multi-tenant apps.
How do I install Nestjs Security Isolation in Claude Code?
Run `npx skills add HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a claude-code`. Or copy the skill folder (skills/nestjs/nestjs-security-isolation in HoangNguyen0403/agent-skills-standard) into .claude/skills/nestjs-security-isolation in your project. Claude Code loads it when a task matches its description.
How do I install Nestjs Security Isolation in Codex?
Run `npx skills add HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a codex`. Or copy the skill folder (skills/nestjs/nestjs-security-isolation in HoangNguyen0403/agent-skills-standard) into .agents/skills/nestjs-security-isolation in your project. Codex loads it when a task matches its description.
Can I use Nestjs Security Isolation 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 HoangNguyen0403/agent-skills-standard --skill nestjs-security-isolation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nestjs-security-isolation, .gemini/skills/nestjs-security-isolation, .github/skills/nestjs-security-isolation and .opencode/skills/nestjs-security-isolation in your project.
What does Nestjs Security Isolation need to run?
SKILL.md names no scripts, command-line tools or credentials: Nestjs Security Isolation is instructions for the agent only.
Does Nestjs Security Isolation 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 Nestjs Security Isolation 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 Nestjs Security Isolation use?
Nestjs Security Isolation is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Nestjs Security Isolation use?
About 547 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 765 tokens, read only when the agent opens those files.
What are the alternatives to Nestjs Security Isolation?
Skills that share tags, products or a category with Nestjs Security Isolation: Backend Dev Guidelines (litefuse/litefuse, 101 stars), Backend AI Guide (lablup/backend.ai-webui, 133 stars), Stash Zerokms (cipherstash/stack, 157 stars) and SaaS Multi Tenant (davila7/claude-code-templates, 33k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Nestjs Security Isolation?
HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.
Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.