Backend
redis/RedisInsight
NestJS backend development patterns for the RedisInsight API: module structure, services, controllers, DTOs, dependency injection, and error handling.
Implement WebSocket gateways with Socket.io and Server-Sent Events endpoints in NestJS.
Install Nestjs Real Time
$ npx skills add HoangNguyen0403/agent-skills-standard --skill nestjs-real-time -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-real-time --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-real-time .claude/skills/nestjs-real-time && 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-real-time" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-real-time into .claude/skills/nestjs-real-time/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-real-time", 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-real-timeType 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-real-time -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-real-time --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-real-time .agents/skills/nestjs-real-time && 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-real-time" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-real-time into .agents/skills/nestjs-real-time/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-real-time", 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-real-time -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-real-time --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-real-time .cursor/skills/nestjs-real-time && 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-real-time" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-real-time into .cursor/skills/nestjs-real-time/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-real-time", 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-real-time--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-real-time -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard nestjs-real-time --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-real-time .gemini/skills/nestjs-real-time && 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-real-time" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-real-time into .gemini/skills/nestjs-real-time/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-real-time", 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-real-timeInstalls 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-real-time -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-real-time .github/skills/nestjs-real-time && 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-real-time" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-real-time into .github/skills/nestjs-real-time/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-real-time", 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-real-time -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-real-time --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-real-time .opencode/skills/nestjs-real-time && 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-real-time" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/nestjs/nestjs-real-time into .opencode/skills/nestjs-real-time/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nestjs-real-time", 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-real-time- GitHub stars
- 572
- Token cost
- ~893 tokens
- SKILL.md length
- 373 words
- Files
- 3 (incl. references)
- Skills in repo
- 211
- Repo updated
- First seen
- Licence
- MIT
At a glance
Implement WebSocket gateways with Socket.io and Server-Sent Events endpoints in NestJS.
- Works in 5 steps: Choose protocol — WebSocket for… → Implement gateway or SSE — Create… → Add auth — Validate JWT in… → …
- Building chat features
- SKILL.md covers Priority: P1 (HIGH), Workflow: Add Real-Time Feature, SSE Endpoint Example and WebSocket Gateway with Auth…, plus 6 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Nestjs Real Time is an agent skill from HoangNguyen0403/agent-skills-standard. Implement WebSocket gateways with Socket.io and Server-Sent Events endpoints in NestJS. Use when building chat features, live feeds, or choosing between WebSocket and SSE for real-time communication.
Its SKILL.md is about 890 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `evals/evals.json` and `references/example.md`).
It sits in Backend & APIs, covering Realtime and WebSockets. It works with NestJS and Redis. 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
- Building chat features
- Choosing between WebSocket and SSE for real-time communication
Example prompts
- “/nestjs-real-time”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Choose protocol — WebSocket for bi-directional (chat, collab); SSE for uni-directional (feeds, notifications).
- Implement gateway or SSE — Create @WebSocketGateway() or @Sse() controller.
- Add auth — Validate JWT in handleConnection() for WebSocket; use standard guards for SSE.
- Scale — Add @socket.io/redis-adapter for multi-pod WebSocket; use HTTP/2 for SSE.
- Test connections — Verify WebSocket handshake auth rejects invalid tokens; confirm SSE streams data.
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 Real Time loads about 893 tokens when it runs, and up to ~1.1k if it reads all its reference files. Until then it costs about 54 tokens; SKILL.md has 373 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). 373 words, ~893 tokens.
Download SKILL.mdSave it as
.claude/skills/nestjs-real-time/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- nestjs-real-time
- description
- Implement WebSocket gateways with Socket.io and Server-Sent Events endpoints in NestJS. Use when building chat features, live feeds, or choosing between WebSocket and SSE for real-time communication.
Real-Time & WebSockets
Priority: P1 (HIGH)
Workflow: Add Real-Time Feature
- Choose protocol — WebSocket for bi-directional (chat, collab); SSE for uni-directional (feeds, notifications).
- Implement gateway or SSE — Create
@WebSocketGateway()or@Sse()controller. - Add auth — Validate JWT in
handleConnection()for WebSocket; use standard guards for SSE. - Scale — Add
@socket.io/redis-adapterfor multi-pod WebSocket; use HTTP/2 for SSE. - Test connections — Verify WebSocket handshake auth rejects invalid tokens; confirm SSE streams data.
SSE Endpoint Example
WebSocket Gateway with Auth Example
Protocol Selection
- WebSockets (Bi-directional): Use for Chat, Multiplayer Games, Collaborative Editing.
- High Complexity: Requires custom scaling (Redis Adapter) and sticky sessions (sometimes).
- Server-Sent Events (SSE) (Uni-directional): Use for Notifications, Live Feeds, Tickers, CI Log streaming.
- Low Complexity: Standard HTTP. Works with standard Load Balancers. Easy to secure.
- NestJS: Use
@Sse('route')returningObservable<MessageEvent>. - Long Polling: Use only as fallback or for extremely low-frequency updates (e.g., job status check every 10m).
- Impact: High header overhead. Blocks threads if not handled carefully.
WebSockets Implementation
- Socket.io: Default choice. Features "Rooms", "Namespaces", and automatic reconnection. Heavy protocol.
- Fastify/WS: Use
wsadapter if performance critical (e.g., high-frequency trading updates) and you don't need "Rooms" logic.
Show full SKILL.md (179 more words)Show less
Scaling (Critical)
- WebSockets: In K8s, client connects to Pod . If Pod B emits event, client won't receive it.
- Solution: Redis Adapter (
@socket.io/redis-adapter). Every pod publishes to Redis; Redis distributes to all other pods. - SSE: Stateless. No special adapter needed, but aware of Connection Limits (6 concurrent connections per domain in HTTP/1.1; virtually unlimited in HTTP/2).
- Rule: Must use HTTP/2 for SSE at scale.
Security
- Handshake Auth: Standard HTTP Guards don't trigger on Ws connection efficiently.
- Pattern: Validate JWT during
handleConnection()lifecycle method. Disconnect immediately if invalid. - Rate Limiting: Sockets expensive. Apply strict throttling on "Message" events to prevent flooding.
Architecture
- Gateway != Service:
WebSocketGatewayshould only handle client comms (Join Room, Ack message). - Rule: Delegate business logic to Service or Command Bus.
- Events: Use
AsyncApiorSocketApidecorators (from community packages) to document WS events similarly to OpenAPI.
Anti-Patterns
- No HTTP guards for WebSocket auth: Validate JWT in
handleConnection(); HTTP guards don't trigger on WS. - No WebSocket at scale without Redis adapter: Without
@socket.io/redis-adapter, cross-pod events lost. - No SSE over HTTP/1.1 at scale: Use HTTP/2 to avoid 6-connection-per-domain browser limit.
© 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 2 other files (references) in skills/nestjs/nestjs-real-time of HoangNguyen0403/agent-skills-standard.
- SKILL.md
- evals/evals.json
- references/example.md
Open the folder on GitHubat commit b529c2d
Compare with similar skills
Nestjs Real Time 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 Real Time this skillHoangNguyen0403/agent-skills-standard | 572 | — | ~893 | Automated safety check: Pass | MIT | |
| Backendredis/RedisInsight | 8.9k | — | ~1.6k | Automated safety check: Pass | Custom licence | |
| Cb Realtime APIBlkLeg/CircuitBreaker | 201 | — | ~1.7k | Automated safety check: Pass | MIT | |
| WebSocket EngineerJeffallan/claude-skills | 12k | — | ~1.6k | Automated safety check: Pass | MIT | |
| Fishjam JS Server SDKsoftware-mansion-labs/skills | 291 | — | ~1.4k | Automated safety check: Pass | MIT | |
| Centrifugopedronauck/skills | 634 | — | ~3.1k | Automated safety check: Pass | None |
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Questions about Nestjs Real Time
What does Nestjs Real Time do?
Implement WebSocket gateways with Socket.io and Server-Sent Events endpoints in NestJS. Nestjs Real Time is an agent skill from HoangNguyen0403/agent-skills-standard.io and Server-Sent Events endpoints in NestJS.
When should I use Nestjs Real Time?
Nestjs Real Time fits situations like: building chat features; choosing between WebSocket and SSE for real-time communication.
How do I install Nestjs Real Time in Claude Code?
Run `npx skills add HoangNguyen0403/agent-skills-standard --skill nestjs-real-time -a claude-code`. Or copy the skill folder (skills/nestjs/nestjs-real-time in HoangNguyen0403/agent-skills-standard) into .claude/skills/nestjs-real-time in your project. Claude Code loads it when a task matches its description.
How do I install Nestjs Real Time in Codex?
Run `npx skills add HoangNguyen0403/agent-skills-standard --skill nestjs-real-time -a codex`. Or copy the skill folder (skills/nestjs/nestjs-real-time in HoangNguyen0403/agent-skills-standard) into .agents/skills/nestjs-real-time in your project. Codex loads it when a task matches its description.
Can I use Nestjs Real Time 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-real-time -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-real-time, .gemini/skills/nestjs-real-time, .github/skills/nestjs-real-time and .opencode/skills/nestjs-real-time in your project.
What does Nestjs Real Time need to run?
SKILL.md names no scripts, command-line tools or credentials: Nestjs Real Time is instructions for the agent only.
Does Nestjs Real Time 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 Real Time 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 Real Time use?
Nestjs Real Time 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 Real Time use?
About 893 tokens (SKILL.md is roughly 3.6k 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 243 tokens, read only when the agent opens those files.
What are the alternatives to Nestjs Real Time?
Skills that share tags, products or a category with Nestjs Real Time: Backend (redis/RedisInsight, 8.9k stars), Cb Realtime API (BlkLeg/CircuitBreaker, 201 stars), WebSocket Engineer (Jeffallan/claude-skills, 12k stars) and Fishjam JS Server SDK (software-mansion-labs/skills, 291 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Nestjs Real Time?
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.