Fishjam JS Server SDK
software-mansion-labs/skills
Node.js / TypeScript server SDK for Fishjam — backends that create rooms, mint peer tokens, listen to server notifications, and run agents.
A skill your agent uses when building an HTTP val — a web endpoint, API route, webhook receiver, or any val that responds to HTTP requests.
Install HTTP Endpoints
$ npx skills add hashgraph-online/awesome-codex-plugins --skill http-endpoints -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins http-endpoints --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/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/val-town/plugins/skills/http-endpoints .claude/skills/http-endpoints && 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 "http-endpoints" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/val-town/plugins/skills/http-endpoints into .claude/skills/http-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http-endpoints", 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/hashgraph-online/awesome-codex-plugins/tree/main/plugins/val-town/plugins/skills/http-endpointsType 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 hashgraph-online/awesome-codex-plugins --skill http-endpoints -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins http-endpoints --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/val-town/plugins/skills/http-endpoints .agents/skills/http-endpoints && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "http-endpoints" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/val-town/plugins/skills/http-endpoints into .agents/skills/http-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http-endpoints", 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 hashgraph-online/awesome-codex-plugins --skill http-endpoints -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins http-endpoints --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/val-town/plugins/skills/http-endpoints .cursor/skills/http-endpoints && 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 "http-endpoints" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/val-town/plugins/skills/http-endpoints into .cursor/skills/http-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http-endpoints", 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/hashgraph-online/awesome-codex-plugins.git --path plugins/val-town/plugins/skills/http-endpoints--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 hashgraph-online/awesome-codex-plugins --skill http-endpoints -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins http-endpoints --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/val-town/plugins/skills/http-endpoints .gemini/skills/http-endpoints && 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 "http-endpoints" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/val-town/plugins/skills/http-endpoints into .gemini/skills/http-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http-endpoints", 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 hashgraph-online/awesome-codex-plugins http-endpointsInstalls 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 hashgraph-online/awesome-codex-plugins --skill http-endpoints -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/val-town/plugins/skills/http-endpoints .github/skills/http-endpoints && 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 "http-endpoints" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/val-town/plugins/skills/http-endpoints into .github/skills/http-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http-endpoints", 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 hashgraph-online/awesome-codex-plugins --skill http-endpoints -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins http-endpoints --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/val-town/plugins/skills/http-endpoints .opencode/skills/http-endpoints && 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 "http-endpoints" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/val-town/plugins/skills/http-endpoints into .opencode/skills/http-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http-endpoints", 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
http-endpoints- GitHub stars
- 1.2k
- Token cost
- ~834 tokens
- SKILL.md length
- 273 words
- Files
- 1
- Skills in repo
- 736
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
A skill your agent uses when building an HTTP val — a web endpoint, API route, webhook receiver, or any val that responds to HTTP requests.
- Building an HTTP val — a web endpoint
- SKILL.md covers Basic handler, Hono, CORS and Redirects, plus 3 more sections
- Reaches esm.town and utilities.val.run
- Webhook receiver
What it does
HTTP Endpoints is an agent skill from hashgraph-online/awesome-codex-plugins. Use when building an HTTP val — a web endpoint, API route, webhook receiver, or any val that responds to HTTP requests. Covers the handler signature, Hono usage, the endpoint URL, CORS behavior, redirects, and Val Town-specific limitations.
Its SKILL.md is about 830 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, covering Webhooks. It works with Hono. The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is Apache-2.0.
When your agent uses it
- Building an HTTP val — a web endpoint
- Webhook receiver
- Any val that responds to HTTP requests
Example prompts
- “/http-endpoints”
What it can do on your machine
Read from SKILL.md and the folder at commit 16b4156. 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 (its code samples are typescript and html).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
esm.townutilities.val.rundocs.val.town
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
HTTP Endpoints loads about 834 tokens when it runs. Until then it costs about 64 tokens; SKILL.md has 273 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 hashgraph-online/awesome-codex-plugins at commit 16b4156, republished under its Apache-2.0 licence (© hashgraph-online). 273 words, ~834 tokens.
Download SKILL.mdSave it as
.claude/skills/http-endpoints/SKILL.md (or your agent's skills folder).- name
- http-endpoints
- description
- Use when building an HTTP val — a web endpoint, API route, webhook receiver, or any val that responds to HTTP requests. Covers the handler signature, Hono usage, the endpoint URL, CORS behavior, redirects, and Val Town-specific limitations.
- triggers
- http, endpoint, webhook, api, request, response, hono, web, route, fetch, cors, redirect
HTTP Endpoints
HTTP vals (fileType: "http") export a request handler and run on every incoming HTTP request. Each HTTP file is assigned a live URL — never construct it yourself; read links.endpoint from list_files or create_file responses, or call fetch_val_endpoint.
That URL is open to anyone unless the val's app access (httpPrivacy) is restricted, in which case unauthenticated callers get a 302 to a login page instead of your response — see the restricted-access skill.
Basic handler
// Learn more: https://docs.val.town/vals/http/
export default async function (req: Request): Promise<Response> {
return Response.json({ ok: true });
}The file must have an export — export default for the handler.
Hono
When using Hono, export app.fetch (not app):
import { Hono } from "npm:hono";
import { parseVal, serveImmutableFile } from "https://esm.town/v/std/utils/index.ts";
const app = new Hono();
app.get("/", (c) => c.text("hello"));
// Immutable asset caching (see the client-side-js skill): serves the
// current-version URLs your HTML shell stamps with immutableFileUrl()
app.get("/__immutable/*", (c) => serveImmutableFile(c.req.path));
// View source redirect
app.get("/source", (c) => c.redirect(parseVal().links.self.val));
// Always add this for full stack traces on errors:
app.onError((err) => Promise.reject(err));
export default app.fetch;Hono's serveStatic does not work on Val Town. Use serveFile / staticHTTPServer from std/utils for static files. For the full std/utils API (readFile, serveFile, staticHTTPServer, listFiles, listFilesByPath, httpEndpoint, parseVal, …), fetch https://utilities.val.run/docs.md.
CORS
Val Town adds permissive CORS headers by default (Access-Control-Allow-Origin: *), so in 99% of cases, you should never need to do anything with CORS. Using Hono's cors middleware is almost always unnecessary.
If you set any CORS header yourself, Val Town stops adding all default headers — so either handle CORS completely yourself or don't touch it at all.
Redirects
Response.redirect is broken on Val Town. Use one of:
return new Response(null, { status: 302, headers: { Location: "/path" } });
// or, with Hono:
return c.redirect("/path");What's not available
- WebSockets: Val Town does not accept incoming WebSocket connections. Use polling, long polling, or server-sent events instead.
- Filesystem access: see the platform constraints. For persistent state, use
std/sqliteorstd/blob.
Surfacing client-side errors
For HTML responses, add this script tag to send browser errors back to val logs (visible via get_logs):
<script src="https://esm.town/v/std/catch"></script>Verifying changes
After editing an HTTP val, fetch it to confirm it returns the expected HTTP response. Do not report a change as done without this step.
© hashgraph-online, Apache-2.0. 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 plugins/val-town/plugins/skills/http-endpoints of hashgraph-online/awesome-codex-plugins.
Open the folder on GitHubat commit 16b4156
Compare with similar skills
HTTP Endpoints 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 |
|---|---|---|---|---|---|---|
| HTTP Endpoints this skillhashgraph-online/awesome-codex-plugins | 1.2k | — | ~834 | Automated safety check: Pass | Apache-2.0 | |
| Fishjam JS Server SDKsoftware-mansion-labs/skills | 291 | — | ~1.4k | Automated safety check: Pass | MIT | |
| Inngest SetupAsymmetric-al/core | 382 | — | ~3.3k | Automated safety check: Notes | AGPL-3.0 | |
| Novu Design Workflownovuhq/novu | 40k | — | ~2.6k | Automated safety check: Pass | Custom licence | |
| Golivemikehasa/golive-skill | 1.2k | — | ~13k | Automated safety check: Notes | MIT | |
| Stripe Appsfossasia/eventyay | 1.7k | 1 repos | ~3.6k | Automated safety check: Pass | Apache-2.0 |
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Related
Works with
Categories
Questions about HTTP Endpoints
What does HTTP Endpoints do?
A skill your agent uses when building an HTTP val — a web endpoint, API route, webhook receiver, or any val that responds to HTTP requests. HTTP Endpoints is an agent skill from hashgraph-online/awesome-codex-plugins. Use when building an HTTP val — a web endpoint, API route, webhook receiver, or any val that responds to HTTP requests.
When should I use HTTP Endpoints?
HTTP Endpoints fits situations like: building an HTTP val — a web endpoint; webhook receiver; any val that responds to HTTP requests.
How do I install HTTP Endpoints in Claude Code?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill http-endpoints -a claude-code`. Or copy the skill folder (plugins/val-town/plugins/skills/http-endpoints in hashgraph-online/awesome-codex-plugins) into .claude/skills/http-endpoints in your project. Claude Code loads it when a task matches its description.
How do I install HTTP Endpoints in Codex?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill http-endpoints -a codex`. Or copy the skill folder (plugins/val-town/plugins/skills/http-endpoints in hashgraph-online/awesome-codex-plugins) into .agents/skills/http-endpoints in your project. Codex loads it when a task matches its description.
Can I use HTTP Endpoints 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 hashgraph-online/awesome-codex-plugins --skill http-endpoints -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/http-endpoints, .gemini/skills/http-endpoints, .github/skills/http-endpoints and .opencode/skills/http-endpoints in your project.
What does HTTP Endpoints need to run?
SKILL.md names no scripts, command-line tools or credentials: HTTP Endpoints is instructions for the agent only.
Does HTTP Endpoints access the network?
SKILL.md names 3 domains. In commands or code: esm.town, utilities.val.run and docs.val.town; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.
Is HTTP Endpoints 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 HTTP Endpoints use?
HTTP Endpoints is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does HTTP Endpoints use?
About 834 tokens (SKILL.md is roughly 3.3k 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 HTTP Endpoints?
Skills that share tags, products or a category with HTTP Endpoints: Fishjam JS Server SDK (software-mansion-labs/skills, 291 stars), Inngest Setup (Asymmetric-al/core, 382 stars), Novu Design Workflow (novuhq/novu, 40k stars) and Golive (mikehasa/golive-skill, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains HTTP Endpoints?
hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,232 GitHub stars. The repository holds 736 skills in this directory. The repository was last updated on October 6, 2026.
Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.