Web Artifacts Builder
anthropics/skills
Builds multi-component claude.ai HTML artifacts as a small React, TypeScript and Tailwind project, then bundles it into one shareable HTML file.
Review React effects and memoization when the user requests an effect audit or a change has unclear synchronization needs.
GPL-3.0Auto-check passed
Install You Might Not Need An Effect
$ npx skills add bitsocialnet/5chan --skill you-might-not-need-an-effect -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install bitsocialnet/5chan you-might-not-need-an-effect --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/bitsocialnet/5chan.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/you-might-not-need-an-effect .claude/skills/you-might-not-need-an-effect && 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 "you-might-not-need-an-effect" agent skill from https://github.com/bitsocialnet/5chan/tree/master/.agents/skills/you-might-not-need-an-effect into .claude/skills/you-might-not-need-an-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "you-might-not-need-an-effect", 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/bitsocialnet/5chan/tree/master/.agents/skills/you-might-not-need-an-effectType 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 bitsocialnet/5chan --skill you-might-not-need-an-effect -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install bitsocialnet/5chan you-might-not-need-an-effect --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bitsocialnet/5chan.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/you-might-not-need-an-effect .agents/skills/you-might-not-need-an-effect && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "you-might-not-need-an-effect" agent skill from https://github.com/bitsocialnet/5chan/tree/master/.agents/skills/you-might-not-need-an-effect into .agents/skills/you-might-not-need-an-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "you-might-not-need-an-effect", 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 bitsocialnet/5chan --skill you-might-not-need-an-effect -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install bitsocialnet/5chan you-might-not-need-an-effect --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bitsocialnet/5chan.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/you-might-not-need-an-effect .cursor/skills/you-might-not-need-an-effect && 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 "you-might-not-need-an-effect" agent skill from https://github.com/bitsocialnet/5chan/tree/master/.agents/skills/you-might-not-need-an-effect into .cursor/skills/you-might-not-need-an-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "you-might-not-need-an-effect", 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/bitsocialnet/5chan.git --path .agents/skills/you-might-not-need-an-effect--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 bitsocialnet/5chan --skill you-might-not-need-an-effect -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install bitsocialnet/5chan you-might-not-need-an-effect --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bitsocialnet/5chan.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/you-might-not-need-an-effect .gemini/skills/you-might-not-need-an-effect && 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 "you-might-not-need-an-effect" agent skill from https://github.com/bitsocialnet/5chan/tree/master/.agents/skills/you-might-not-need-an-effect into .gemini/skills/you-might-not-need-an-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "you-might-not-need-an-effect", 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 bitsocialnet/5chan you-might-not-need-an-effectInstalls 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 bitsocialnet/5chan --skill you-might-not-need-an-effect -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/bitsocialnet/5chan.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/you-might-not-need-an-effect .github/skills/you-might-not-need-an-effect && 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 "you-might-not-need-an-effect" agent skill from https://github.com/bitsocialnet/5chan/tree/master/.agents/skills/you-might-not-need-an-effect into .github/skills/you-might-not-need-an-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "you-might-not-need-an-effect", 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 bitsocialnet/5chan --skill you-might-not-need-an-effect -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install bitsocialnet/5chan you-might-not-need-an-effect --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/bitsocialnet/5chan.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/you-might-not-need-an-effect .opencode/skills/you-might-not-need-an-effect && 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 "you-might-not-need-an-effect" agent skill from https://github.com/bitsocialnet/5chan/tree/master/.agents/skills/you-might-not-need-an-effect into .opencode/skills/you-might-not-need-an-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "you-might-not-need-an-effect", 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
you-might-not-need-an-effect- GitHub stars
- 135
- Token cost
- ~474 tokens
- SKILL.md length
- 232 words
- Files
- 2
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- GPL-3.0
At a glance
Review React effects and memoization when the user requests an effect audit or a change has unclear synchronization needs.
- Requests an effect audit
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- A change has unclear synchronization needs
What it does
You Might Not Need An Effect is an agent skill from bitsocialnet/5chan. Review React effects and memoization when the user requests an effect audit or a change has unclear synchronization needs.
Its SKILL.md is about 470 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).
It works with React. The repository describes itself as: A peer-to-peer 4chan alternative. The licence is GPL-3.0.
When your agent uses it
- Requests an effect audit
- A change has unclear synchronization needs
Example prompts
- “/you-might-not-need-an-effect”
What it can do on your machine
Read from SKILL.md and the folder at commit 6900384. 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
Links to these hosts (documentation or services it may open):
react.dev
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
You Might Not Need An Effect loads about 474 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 232 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 bitsocialnet/5chan at commit 6900384, republished under its GPL-3.0 licence (© bitsocialnet). 232 words, ~474 tokens.
Download SKILL.mdSave it as
.claude/skills/you-might-not-need-an-effect/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- you-might-not-need-an-effect
- description
- Review React effects and memoization when the user requests an effect audit or a change has unclear synchronization needs.
- disable-model-invocation
- true
Review Effects
Inspect the requested files or task-owned diff. An audit returns findings; apply fixes when the user requests implementation or cleanup. Preserve existing authorization without inventing an additional approval step. Use surrounding source and relevant tests to establish each effect's actual purpose.
Decide whether the behavior is derived computation, an event response, or synchronization with an external system:
- Derive values from props/state during render rather than mirroring them with effects. Use memoization only when it has a demonstrated benefit.
- Keep user-triggered work in the appropriate handler. Route lifecycle work must still handle direct entry, history navigation, and other ways the route changes; moving it into one click handler can lose behavior.
- Use Bitsocial hooks for protocol data and Zustand selectors for shared state. Do not replace these with manual fetching or mirrored subscriptions.
- A key can reset a component's state, but verify that resetting its full subtree is intended.
- Keep effects that synchronize browser APIs or imperative systems, with correct dependencies and cleanup. Do not move initialization into module scope unless import-time execution is safe and preserves its lifecycle.
Do not remove an effect or memo solely because it exists. Check behavior, loading/error states and cleanup after any refactor using docs/agent-playbooks/verification.md. Report concrete findings or changes without expanding into an unrelated React overhaul.
For a pattern that remains unclear, consult React's You Might Not Need an Effect guidance for that pattern.
© bitsocialnet, GPL-3.0. 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 1 other file in .agents/skills/you-might-not-need-an-effect of bitsocialnet/5chan.
- SKILL.md
- agents/openai.yaml
Open the folder on GitHubat commit 6900384
Compare with similar skills
You Might Not Need An Effect 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 |
|---|---|---|---|---|---|---|
| You Might Not Need An Effect this skillbitsocialnet/5chan | 135 | — | ~474 | Automated safety check: Pass | GPL-3.0 | |
| Web Artifacts Builderanthropics/skills | 180k | 40 repos | ~769 | Automated safety check: Pass | Apache-2.0 | |
| Vercel Composition Patternssupabase/supabase | 111k | 58 repos | ~726 | Automated safety check: Pass | MIT | |
| React Doctormakeplane/plane | 61k | 12 repos | ~657 | Automated safety check: Pass | AGPL-3.0 | |
| React Router Developmentremix-run/react-router | 57k | 1 repos | ~1.5k | Automated safety check: Pass | MIT | |
| React UI State PatternsChrisWiles/claude-code-showcase | 6.1k | 8 repos | ~1.6k | Automated safety check: Pass | None |
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- Official
- Official
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supabase/supabase
React composition patterns that scale. An agent skill from supabase/supabase.
React Doctor
makeplane/plane
Scans React code for lint, accessibility, bundle size and architecture issues, reports a health score and checks that changes do not lower it.
React Router Development
remix-run/react-router
Guides work on React Router apps by first identifying whether the app uses Framework, Data or Declarative mode, then loading the matching reference and the installed package docs.
React UI State Patterns
ChrisWiles/claude-code-showcase
Sets patterns for React interfaces: when to show loading spinners or skeletons, how to surface errors, how to disable buttons during async work and how to handle empty lists.
Electron Multi-Process Architecture
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Tells the agent where new code belongs in an Electron multi-process project and which APIs each process may use, with rules for new bridges, services, agents and workers.
More from bitsocialnet/5chan
All 12 skills in this repoPlaywright CLI
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Verify browser behavior or reproduce a web UI issue with the installed Playwright CLI.
Inspect Elements
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Map a visible 5chan DOM node to its React source when file or component attribution is needed.
Translate
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Add, update, or remove 5chan i18next translations when locale changes are requested.
Debug Agent
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Investigate a reported bug using source, tests, or runtime evidence to establish its cause.
Profile Browsing
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Measure 5chan loading, navigation, interaction timing, and committed React updates using repeatable scenarios.
Retro
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Review a coding session, bug fix, or substantive review correction for evidence-backed ways to prevent recurrence, using existing checks and focused guidance.
Related
Works with
Questions about You Might Not Need An Effect
What does You Might Not Need An Effect do?
Review React effects and memoization when the user requests an effect audit or a change has unclear synchronization needs. You Might Not Need An Effect is an agent skill from bitsocialnet/5chan. Review React effects and memoization when the user requests an effect audit or a change has unclear synchronization needs.
When should I use You Might Not Need An Effect?
You Might Not Need An Effect fits situations like: requests an effect audit; A change has unclear synchronization needs.
How do I install You Might Not Need An Effect in Claude Code?
Run `npx skills add bitsocialnet/5chan --skill you-might-not-need-an-effect -a claude-code`. Or copy the skill folder (.agents/skills/you-might-not-need-an-effect in bitsocialnet/5chan) into .claude/skills/you-might-not-need-an-effect in your project. Claude Code loads it when a task matches its description.
How do I install You Might Not Need An Effect in Codex?
Run `npx skills add bitsocialnet/5chan --skill you-might-not-need-an-effect -a codex`. Or copy the skill folder (.agents/skills/you-might-not-need-an-effect in bitsocialnet/5chan) into .agents/skills/you-might-not-need-an-effect in your project. Codex loads it when a task matches its description.
Can I use You Might Not Need An Effect 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 bitsocialnet/5chan --skill you-might-not-need-an-effect -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/you-might-not-need-an-effect, .gemini/skills/you-might-not-need-an-effect, .github/skills/you-might-not-need-an-effect and .opencode/skills/you-might-not-need-an-effect in your project.
What does You Might Not Need An Effect need to run?
SKILL.md names no scripts, command-line tools or credentials: You Might Not Need An Effect is instructions for the agent only.
Does You Might Not Need An Effect access the network?
SKILL.md names 1 domain. As links in the text: react.dev. This is read from the text; nothing was executed.
Is You Might Not Need An Effect 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 You Might Not Need An Effect use?
You Might Not Need An Effect is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does You Might Not Need An Effect use?
About 474 tokens (SKILL.md is roughly 1.9k 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 You Might Not Need An Effect?
Skills that share tags, products or a category with You Might Not Need An Effect: Web Artifacts Builder (anthropics/skills, 180k stars), Vercel Composition Patterns (supabase/supabase, 111k stars), React Doctor (makeplane/plane, 61k stars) and React Router Development (remix-run/react-router, 57k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains You Might Not Need An Effect?
bitsocialnet (a GitHub organization) maintains it in bitsocialnet/5chan, which has 135 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on October 10, 2026.
Source: bitsocialnet/5chan on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.