Agent skill

Htmx

Implements HTMX interactions, configures swap behaviors, debugs hx- requests, and builds hypermedia-driven UI components.

Apache-2.0Auto-check passedBackend & APIs

Install Htmx

skills CLI

$ npx skills add blackfyre/wga --skill htmx -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install blackfyre/wga htmx --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/blackfyre/wga.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/htmx .claude/skills/htmx && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "htmx" agent skill from https://github.com/blackfyre/wga/tree/main/.agents/skills/htmx into .claude/skills/htmx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "htmx", 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

$skill-installer install https://github.com/blackfyre/wga/tree/main/.agents/skills/htmx

Type 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.

skills CLI

$ npx skills add blackfyre/wga --skill htmx -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install blackfyre/wga htmx --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/blackfyre/wga.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/htmx .agents/skills/htmx && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "htmx" agent skill from https://github.com/blackfyre/wga/tree/main/.agents/skills/htmx into .agents/skills/htmx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "htmx", 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.

skills CLI

$ npx skills add blackfyre/wga --skill htmx -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install blackfyre/wga htmx --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/blackfyre/wga.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/htmx .cursor/skills/htmx && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "htmx" agent skill from https://github.com/blackfyre/wga/tree/main/.agents/skills/htmx into .cursor/skills/htmx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "htmx", 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

$ gemini skills install https://github.com/blackfyre/wga.git --path .agents/skills/htmx

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add blackfyre/wga --skill htmx -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install blackfyre/wga htmx --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/blackfyre/wga.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/htmx .gemini/skills/htmx && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "htmx" agent skill from https://github.com/blackfyre/wga/tree/main/.agents/skills/htmx into .gemini/skills/htmx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "htmx", 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.

GitHub CLI

$ gh skill install blackfyre/wga htmx

Installs 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).

skills CLI

$ npx skills add blackfyre/wga --skill htmx -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/blackfyre/wga.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/htmx .github/skills/htmx && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "htmx" agent skill from https://github.com/blackfyre/wga/tree/main/.agents/skills/htmx into .github/skills/htmx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "htmx", 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.

skills CLI

$ npx skills add blackfyre/wga --skill htmx -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install blackfyre/wga htmx --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/blackfyre/wga.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/htmx .opencode/skills/htmx && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "htmx" agent skill from https://github.com/blackfyre/wga/tree/main/.agents/skills/htmx into .opencode/skills/htmx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "htmx", 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: htmx
GitHub stars: 194
Token cost: ~1.1k tokens
SKILL.md length: 489 words
Files: 10 (incl. references)
Skills in repo: 3
Repo updated: Oct 5, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Implements HTMX interactions, configures swap behaviors, debugs hx- requests, and builds hypermedia-driven UI components.

Works in 4 steps: Identify the domain of the task… → Open the matching file from references/. → Implement using HTML-first,… → …
Tasks involve hx- attributes
SKILL.md covers Quick Start, Critical Rules, Reference Map and Task Routing
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Htmx is an agent skill from blackfyre/wga. Implements HTMX interactions, configures swap behaviors, debugs hx- requests, and builds hypermedia-driven UI components. Use when tasks involve hx- attributes, HTMX AJAX requests, swap strategies, server-sent events, WebSockets, or hypermedia-driven UIs.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 11 other files, including reference files (for example `.tessl-plugin/plugin.json`, `references/REFERENCE.md` and `references/attributes.md`).

It sits in Backend & APIs, covering Realtime and WebSockets. It works with Go. The repository describes itself as: Jumping forward ~30 years. The licence is Apache-2.0.

When your agent uses it

Tasks involve hx- attributes
HTMX AJAX requests
Swap strategies
Server-sent events

Example prompts

“Use the htmx skill to implement HTMX interactions, configures swap behaviors, debugs hx- requests, and builds hypermedia-driven UI components”
“/htmx”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

Identify the domain of the task (attributes, requests, swapping, events, patterns).
Open the matching file from references/.
Implement using HTML-first, hypermedia-driven patterns.
Validate that server responses return HTML fragments, not JSON.

What it can do on your machine

Read from SKILL.md and the folder at commit 8686358. 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 html).
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

Htmx loads about 1.1k tokens when it runs, and up to ~36k if it reads all its reference files. Until then it costs about 66 tokens; SKILL.md has 489 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~66
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~36k

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 blackfyre/wga at commit 8686358, republished under its Apache-2.0 licence (© blackfyre). 489 words, ~1,149 tokens.

Download SKILL.mdSave it as .claude/skills/htmx/SKILL.md (or your agent's skills folder). This skill also uses 9 other files; get the full folder from GitHub.

name: htmx
description: Implements HTMX interactions, configures swap behaviors, debugs hx-* requests, and builds hypermedia-driven UI components. Use when tasks involve hx-* attributes, HTMX AJAX requests, swap strategies, server-sent events, WebSockets, or hypermedia-driven UIs.

HTMX

Use this skill for HTMX implementation and integration. Covers htmx 2.x (current stable) and htmx 4.x (beta). Reference files are annotated with [htmx 4], [htmx 4 change], and [htmx 4 removed] admonitions. Read only the reference file(s) needed for the task.

Quick Start

Identify the domain of the task (attributes, requests, swapping, events, patterns).
Open the matching file from references/.
Implement using HTML-first, hypermedia-driven patterns.
Validate that server responses return HTML fragments, not JSON.

Minimal example — a button that loads content via GET:

html

<button hx-get="/contacts" hx-target="#results" hx-swap="innerHTML">
    Load Contacts
</button>
<div id="results"></div>

The server endpoint (/contacts) must return an HTML fragment, not JSON:

html

<!-- Server response (HTML fragment, no <html>/<body> wrappers) -->
<ul>
    <li>Alice</li>
    <li>Bob</li>
</ul>

The default swap is innerHTML — the response replaces the target's children. Use hx-swap="outerHTML" to replace the target element itself.

Critical Rules

HTML responses - HTMX expects HTML responses from the server, not JSON
Attribute inheritance - (v2) Most attributes inherit to children; use hx-disinherit or unset to stop. (v4) Inheritance is explicit — use :inherited suffix to opt in. Not inherited in either version: hx-trigger, hx-on*, hx-swap-oob, hx-preserve, hx-history-elt, hx-validate
Default swap is innerHTML - Always confirm the intended swap method
Form values auto-included - Non-GET requests automatically include the closest enclosing form's values
Progressive enhancement - Use hx-boost="true" — pages must work without JS
Escape user content - Escape all user-supplied content server-side to prevent XSS. Wrap areas rendering user-generated content with hx-disable to prevent HTMX processing of injected attributes
CSS lifecycle classes - HTMX adds/removes CSS classes during requests — use for transitions and indicators
data-prefix supported - All hx-* attributes can also be written as data-hx-* for HTML validation compliance
Stop polling with HTTP 286 - Server returns status 286 to stop every or load delay polling. Always use 286 for poll termination, not conditional client-side logic
Error swaps - (v2) Non-2xx responses are not swapped by default — add an htmx:beforeSwap listener to enable. (v4) All responses swap by default except 204/304 — use hx-status for per-code control
Decouple with HX-Trigger headers - Use HX-Trigger response headers to fire client-side events instead of hardcoding DOM element IDs in server responses
Detect HTMX requests server-side - Check the HX-Request header to serve HTML fragments for HTMX requests and full pages for direct browser requests. Set Vary: HX-Request for caching

Show full SKILL.md (123 more words)Show less

Reference Map

All hx-* attributes, values, and modifiers: references/attributes.md
Triggers, headers, parameters, CSRF, caching, CORS: references/requests.md
Swap methods, targets, OOB swaps, morphing, view transitions: references/swapping.md
Events, JS API, configuration, extensions, debugging: references/events-api.md
Common UI patterns and examples: references/patterns.md
Official extensions (WS, SSE, Idiomorph, response-targets, head-support, preload, hx-live, hx-prompt): references/extensions.md
Gotchas, pitfalls, and practical guidance: references/gotchas.md
Cross-file index and routing: references/REFERENCE.md

Task Routing

Adding HTMX behavior to elements -> references/attributes.md
Configuring how/when requests fire -> references/requests.md
Controlling where/how responses render -> references/swapping.md
Handling events, JS interop, or config -> references/events-api.md
Building common UI patterns (search, infinite scroll, modals, etc.) -> references/patterns.md
Using WebSockets, SSE, morphing, preloading, response targeting, or head merging -> references/extensions.md
Avoiding common pitfalls, accessibility, error handling, architecture decisions -> references/gotchas.md
Cross-cutting concerns or architecture -> references/REFERENCE.md then domain-specific files

Files

SKILL.md and 9 other files (references) in .agents/skills/htmx of blackfyre/wga.

SKILL.md
.tessl-plugin/plugin.json
references/REFERENCE.md
references/attributes.md
references/events-api.md
references/extensions.md
references/gotchas.md
references/patterns.md
references/requests.md
references/swapping.md

Open the folder on GitHubat commit 8686358

Compare with similar skills

Htmx 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.

Htmx compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Htmx this skillblackfyre/wga	194	—	~1.1k	Automated safety check: Pass	Apache-2.0	3 days ago
Tgf Server Devthkhxm/tgf	128	—	~1.3k	Automated safety check: Notes	MIT	2 mo ago
Supabase Development and Debuggingsupabase/agent-skills	2.7k	3 repos	~3.6k	Automated safety check: Pass	MIT	7 days ago
Use Yaakmountain-loop/yaak	19k	—	~1.9k	Automated safety check: Pass	MIT	2 days ago
Golang Proantoniopaya22/go-rest-template	172	3 repos	~1.2k	Automated safety check: Pass	MIT	6 mo ago
Gemini Live API Devgoogle-gemini/gemini-skills	4.3k	—	~4.6k	Automated safety check: Pass	Apache-2.0	2 days ago

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Questions about Htmx

What does Htmx do?

Implements HTMX interactions, configures swap behaviors, debugs hx- requests, and builds hypermedia-driven UI components. Htmx is an agent skill from blackfyre/wga. Implements HTMX interactions, configures swap behaviors, debugs hx- requests, and builds hypermedia-driven UI components.

When should I use Htmx?

Htmx fits situations like: tasks involve hx- attributes; HTMX AJAX requests; swap strategies; server-sent events.

How do I install Htmx in Claude Code?

Run `npx skills add blackfyre/wga --skill htmx -a claude-code`. Or copy the skill folder (.agents/skills/htmx in blackfyre/wga) into .claude/skills/htmx in your project. Claude Code loads it when a task matches its description.

How do I install Htmx in Codex?

Run `npx skills add blackfyre/wga --skill htmx -a codex`. Or copy the skill folder (.agents/skills/htmx in blackfyre/wga) into .agents/skills/htmx in your project. Codex loads it when a task matches its description.

Can I use Htmx 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 blackfyre/wga --skill htmx -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/htmx, .gemini/skills/htmx, .github/skills/htmx and .opencode/skills/htmx in your project.

What does Htmx need to run?

SKILL.md names no scripts, command-line tools or credentials: Htmx is instructions for the agent only.

Does Htmx 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 Htmx 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 Htmx use?

Htmx 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 Htmx use?

About 1.1k tokens (SKILL.md is roughly 4.6k 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 35k tokens, read only when the agent opens those files.

What are the alternatives to Htmx?

Skills that share tags, products or a category with Htmx: Tgf Server Dev (thkhxm/tgf, 128 stars), Supabase Development and Debugging (supabase/agent-skills, 2.7k stars), Use Yaak (mountain-loop/yaak, 19k stars) and Golang Pro (antoniopaya22/go-rest-template, 172 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Htmx?

blackfyre (a GitHub user) maintains it in blackfyre/wga, which has 194 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 5, 2026.

Source: blackfyre/wga on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Htmx

Install Htmx

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

HTMX

Quick Start

Critical Rules

Reference Map

Task Routing

Files

Compare with similar skills

Similar skills

Tgf Server Dev

Supabase Development and Debugging

Use Yaak

Golang Pro

Gemini Live API Dev

Broker Integration

More from blackfyre/wga

Conventional Git

Design Intake

Questions about Htmx

Install Htmx

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

HTMX

Quick Start

Critical Rules

Reference Map

Task Routing

Files

Compare with similar skills

Similar skills

More from blackfyre/wga

Related

Questions about Htmx