Agent skill

Chat Apps UI SDK

Interactive UI rendered inside ChatGPT or Claude — OpenAI Apps SDK apps, MCP Apps (the @modelcontextprotocol/ext-apps standard), or MCP-UI components, with a Next.js/React server.

MITAuto-check passedFrontend & Design

Install Chat Apps UI SDK

skills CLI

$ npx skills add pproenca/dot-skills --skill chat-apps-ui-sdk -a claude-code

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

GitHub CLI

$ gh skill install pproenca/dot-skills chat-apps-ui-sdk --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/pproenca/dot-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.experimental/chat-apps-ui-sdk .claude/skills/chat-apps-ui-sdk && 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 "chat-apps-ui-sdk" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/chat-apps-ui-sdk into .claude/skills/chat-apps-ui-sdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chat-apps-ui-sdk", 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/pproenca/dot-skills/tree/master/skills/.experimental/chat-apps-ui-sdk

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 pproenca/dot-skills --skill chat-apps-ui-sdk -a codex

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

GitHub CLI

$ gh skill install pproenca/dot-skills chat-apps-ui-sdk --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/.experimental/chat-apps-ui-sdk .agents/skills/chat-apps-ui-sdk && 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 "chat-apps-ui-sdk" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/chat-apps-ui-sdk into .agents/skills/chat-apps-ui-sdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chat-apps-ui-sdk", 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 pproenca/dot-skills --skill chat-apps-ui-sdk -a cursor

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

GitHub CLI

$ gh skill install pproenca/dot-skills chat-apps-ui-sdk --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/.experimental/chat-apps-ui-sdk .cursor/skills/chat-apps-ui-sdk && 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 "chat-apps-ui-sdk" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/chat-apps-ui-sdk into .cursor/skills/chat-apps-ui-sdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chat-apps-ui-sdk", 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/pproenca/dot-skills.git --path skills/.experimental/chat-apps-ui-sdk

--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 pproenca/dot-skills --skill chat-apps-ui-sdk -a gemini-cli

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

GitHub CLI

$ gh skill install pproenca/dot-skills chat-apps-ui-sdk --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/pproenca/dot-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/.experimental/chat-apps-ui-sdk .gemini/skills/chat-apps-ui-sdk && 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 "chat-apps-ui-sdk" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/chat-apps-ui-sdk into .gemini/skills/chat-apps-ui-sdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chat-apps-ui-sdk", 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 pproenca/dot-skills chat-apps-ui-sdk

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 pproenca/dot-skills --skill chat-apps-ui-sdk -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/.experimental/chat-apps-ui-sdk .github/skills/chat-apps-ui-sdk && 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 "chat-apps-ui-sdk" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/chat-apps-ui-sdk into .github/skills/chat-apps-ui-sdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chat-apps-ui-sdk", 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 pproenca/dot-skills --skill chat-apps-ui-sdk -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 pproenca/dot-skills chat-apps-ui-sdk --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/pproenca/dot-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/.experimental/chat-apps-ui-sdk .opencode/skills/chat-apps-ui-sdk && 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 "chat-apps-ui-sdk" agent skill from https://github.com/pproenca/dot-skills/tree/master/skills/.experimental/chat-apps-ui-sdk into .opencode/skills/chat-apps-ui-sdk/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chat-apps-ui-sdk", 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: chat-apps-ui-sdk
GitHub stars: 214
Token cost: ~2.4k tokens
SKILL.md length: 776 words
Files: 51 (incl. references, assets)
Skills in repo: 182
Repo updated: Aug 15, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Interactive UI rendered inside ChatGPT or Claude — OpenAI Apps SDK apps, MCP Apps (the @modelcontextprotocol/ext-apps standard), or MCP-UI components, with a Next.js/React server.

Works in 8 steps: MCP Tool & Discovery Design (CRITICAL) → UI Resource Wiring & Templates (CRITICAL) → Host–Component Data Bridge (HIGH) → …
Designing such apps — even when the user only says chat app
SKILL.md covers When to Apply, Rule Categories by Priority, Quick Reference and How to Use, plus 2 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Chat Apps UI SDK is an agent skill from pproenca/dot-skills. Interactive UI rendered inside ChatGPT or Claude — OpenAI Apps SDK apps, MCP Apps (the @modelcontextprotocol/ext-apps standard), or MCP-UI components, with a Next.js/React server. Covers the MCP tool and resource architecture, the window.openai / ui-bridge data flow, widget state, sandbox/CSP security, display modes, visual design, and directory submission. Trigger when building, reviewing, or designing such apps — even when the user only says "chat app", "ChatGPT widget", "Claude app", "render UI in chat"…

Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 53 other files, including reference files and assets (for example `AGENTS.md`, `assets/templates/_template.md` and `metadata.json`).

It sits in Frontend & Design, covering MCP servers and UI design. It works with OpenAI, Model Context Protocol, Next.js and React. The repository describes itself as: A collection of AI agent skills following the Agent Skills open format. The licence is MIT.

When your agent uses it

Designing such apps — even when the user only says chat app
Render UI in chat
CreateUIResource
MCP app UI without naming a specific SDK

Example prompts

“chat app”
“ChatGPT widget”
“Claude app”
“/chat-apps-ui-sdk”

Workflow steps

8 steps, taken from the step headings in SKILL.md.

MCP Tool & Discovery Design (CRITICAL)
UI Resource Wiring & Templates (CRITICAL)
Host–Component Data Bridge (HIGH)
Display Modes & Responsive Layout (HIGH)
State & Model Context (HIGH)
Security & Data Boundaries (HIGH)
Visual Design & UX Polish (MEDIUM-HIGH)
Distribution & Cross-Host Portability (MEDIUM)

What it can do on your machine

Read from SKILL.md and the folder at commit cf93c57. 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

Chat Apps UI SDK loads about 2.4k tokens when it runs, and up to ~19k if it reads all its reference files. Until then it costs about 158 tokens; SKILL.md has 776 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~158
When it runs · the whole SKILL.md, loaded when a task matches: ~2.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~19k

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 pproenca/dot-skills at commit cf93c57, republished under its MIT licence (© pproenca). 776 words, ~2,448 tokens.

Download SKILL.mdSave it as .claude/skills/chat-apps-ui-sdk/SKILL.md (or your agent's skills folder). This skill also uses 50 other files; get the full folder from GitHub.

name: chat-apps-ui-sdk
description: Interactive UI rendered inside ChatGPT or Claude — OpenAI Apps SDK apps, MCP Apps (the @modelcontextprotocol/ext-apps standard), or MCP-UI components, with a Next.js/React server. Covers the MCP tool and resource architecture, the window.openai / ui-bridge data flow, widget state, sandbox/CSP security, display modes, visual design, and directory submission. Trigger when building, reviewing, or designing such apps — even when the user only says "chat app", "ChatGPT widget", "Claude app", "render UI in chat", "window.openai", "createUIResource", "outputTemplate", or "MCP app UI" without naming a specific SDK.

Chat Apps UI SDK Best Practices

A reference for building beautiful, review-ready apps that render interactive UI inside the chat surface of ChatGPT and Claude. As of January 2026 these platforms share one foundation — the MCP Apps standard (@modelcontextprotocol/ext-apps), rendered by Claude, ChatGPT, VS Code, and Goose. The OpenAI Apps SDK is a superset adding the window.openai bridge, and MCP-UI (@mcp-ui/server / @mcp-ui/client) is the community implementation. This skill contains 46 rules across 8 categories, ordered by impact so the highest-leverage decisions come first.

The mental model: an app is an MCP tool first, UI second. The model invokes a tool; the tool returns data plus a link to a UI resource; the host renders that resource in a sandboxed iframe; the iframe talks back over a defined bridge. Mistakes early in that chain mean nothing renders; mistakes later mean it renders broken, unsafe, or unpolished.

When to Apply

Reference these guidelines when:

Designing the MCP tool and structuredContent / content / _meta contract for a chat app
Wiring a tool to a component (_meta.ui.resourceUri, the text/html;profile=mcp-app MIME type, the ui:// scheme)
Writing the iframe component and its bridge (window.openai, ui/notifications/*, MCP-UI onUIAction)
Choosing display modes, widget state, theming, and responsive layout
Hardening a chat app (CSP, sandbox, secrets, OAuth) or preparing it for directory submission
Reviewing or refactoring existing ChatGPT-app / Claude-app / MCP-UI code

Rule Categories by Priority

Priority	Category	Impact	Prefix
1	MCP Tool & Discovery Design	CRITICAL	`tool-`
2	UI Resource Wiring & Templates	CRITICAL	`wire-`
3	Host–Component Data Bridge	HIGH	`bridge-`
4	Display Modes & Responsive Layout	HIGH	`display-`
5	State & Model Context	HIGH	`state-`
6	Security & Data Boundaries	HIGH	`sec-`
7	Visual Design & UX Polish	MEDIUM-HIGH	`design-`
8	Distribution & Cross-Host Portability	MEDIUM	`dist-`

Quick Reference

1. MCP Tool & Discovery Design (CRITICAL)

tool-structured-content-contract - Split output across structuredContent, content, and _meta
tool-specific-verb-names - Name tools as specific action verbs
tool-output-schema-validation - Declare an output schema for structuredContent
tool-safety-annotations - Set readOnlyHint and destructiveHint accurately
tool-minimal-scoped-inputs - Request minimal, task-scoped tool inputs
tool-feed-widget-in-response - Return everything the widget needs in one response
tool-honest-descriptions - Write honest tool descriptions and status text

2. UI Resource Wiring & Templates (CRITICAL)

wire-resource-uri-link - Link each tool to its UI with resourceUri
wire-mcp-app-mimetype - Serve UI resources with the mcp-app MIME type
wire-ui-scheme-and-handler - Match the ui:// URI to a registered resource
wire-version-uri-cache-key - Version the resource URI as a cache key
wire-inline-self-contained-bundle - Inline the component bundle into the resource
wire-set-ui-domain - Set a unique ui.domain for the component

3. Host–Component Data Bridge (HIGH)

bridge-render-from-notifications - Render from tool output, not first paint
bridge-call-tools-app-visibility - Expose tools to the app before calling them
bridge-followup-vs-silent-call - Choose follow-up messages or silent tool calls
bridge-validate-postmessage-origin - Validate postMessage source in the host
bridge-handle-all-mcpui-actions - Handle every MCP-UI onUIAction type
bridge-use-host-apis - Use host bridge APIs instead of reimplementing

Show full SKILL.md (327 more words)Show less

4. Display Modes & Responsive Layout (HIGH)

display-pick-the-right-mode - Pick the display mode that fits the task
display-request-mode-with-fallback - Request fullscreen but render inline first
display-report-intrinsic-height - Report intrinsic height and respect maxHeight
display-avoid-nested-scroll - Avoid nested scroll inside inline cards
display-respect-theme - Respect the host theme and color scheme
display-responsive-breakpoints - Collapse layout gracefully on small screens

5. State & Model Context (HIGH)

state-separate-three-stores - Separate widget, server, and model state
state-persist-widget-state - Persist UI state through setWidgetState
state-no-secrets-in-state - Keep secrets and PII out of widget state
state-update-model-context - Push user decisions to model context
state-keep-state-small - Keep widget state small and serializable

6. Security & Data Boundaries (HIGH)

sec-declare-csp-allowlist - Declare a CSP allowlist for the widget
sec-avoid-frame-domains - Avoid nested frame domains in the widget
sec-no-secrets-in-payloads - Never embed secrets in bundles or payloads
sec-enforce-server-side-auth - Enforce authorization on the server
sec-signal-oauth-challenge - Signal auth with a www-authenticate challenge
sec-minimize-restricted-data - Minimize and avoid restricted data inputs

7. Visual Design & UX Polish (MEDIUM-HIGH)

design-inherit-native-typography - Inherit native fonts and limit type sizes
design-restrain-brand-color - Restrain brand color to accents
design-render-loading-empty-error - Render loading, empty, and error states
design-meet-wcag-contrast - Meet WCAG AA contrast and provide alt text
design-limit-actions-hierarchy - Limit actions and keep a clear hierarchy
design-respect-reduced-motion - Respect reduced-motion preferences

8. Distribution & Cross-Host Portability (MEDIUM)

dist-build-on-mcp-apps-standard - Build on the shared MCP Apps standard
dist-degrade-without-ui - Return a text fallback when UI is unsupported
dist-provide-submission-metadata - Provide accurate submission metadata
dist-feature-detect-host-apis - Detect host capabilities before use

How to Use

Read the individual reference files for full explanations and incorrect-vs-correct code examples. Start at the top — category 1 (tool-) and category 2 (wire-) gate whether anything renders at all, so resolve those before touching display or design.

Section definitions - Category structure and impact levels
Rule template - Template for adding new rules
AGENTS.md - Compiled table of contents across all rules

Reference Files

File	Description
references/_sections.md	Category definitions and impact ordering
assets/templates/_template.md	Template for new rules
metadata.json	Version and reference URLs

build-mcp-server — Entry point for designing the MCP server shape (deployment model, tool patterns) this skill's UI rules build on top of.

Files

SKILL.md and 50 other files (references, assets) in skills/.experimental/chat-apps-ui-sdk of pproenca/dot-skills.

SKILL.md
AGENTS.md
assets/templates/_template.md
metadata.json
references/_sections.md
references/bridge-call-tools-app-visibility.md
references/bridge-followup-vs-silent-call.md
references/bridge-handle-all-mcpui-actions.md
references/bridge-render-from-notifications.md
references/bridge-use-host-apis.md
references/bridge-validate-postmessage-origin.md
references/design-inherit-native-typography.md
references/design-limit-actions-hierarchy.md
references/design-meet-wcag-contrast.md
references/design-render-loading-empty-error.md
references/design-respect-reduced-motion.md
references/design-restrain-brand-color.md
references/display-avoid-nested-scroll.md
… and 33 more

Open the folder on GitHubat commit cf93c57

Compare with similar skills

Chat Apps UI SDK 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.

Chat Apps UI SDK compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Chat Apps UI SDK this skillpproenca/dot-skills	214	—	~2.4k	Automated safety check: Pass	MIT	1 mo ago
UI UX Pro Maxsaoudi-h/solar-icons	182	18 repos	~11k	Automated safety check: Notes	Custom licence	2 days ago
Nextcrmpdovhomilja/nextcrm-app	711	—	~3.3k	Automated safety check: Pass	MIT	2 days ago
Chatgpt App Builderalpic-ai/skybridge	2.1k	—	~1k	Automated safety check: Pass	MIT	yesterday
Reactopenops-cloud/openops	1.1k	—	~1.7k	Automated safety check: Pass	Custom licence	yesterday
MCP App Builderalpic-ai/skybridge	2.1k	—	~906	Automated safety check: Pass	MIT	yesterday

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Questions about Chat Apps UI SDK

What does Chat Apps UI SDK do?

Interactive UI rendered inside ChatGPT or Claude — OpenAI Apps SDK apps, MCP Apps (the @modelcontextprotocol/ext-apps standard), or MCP-UI components, with a Next.js/React server. Chat Apps UI SDK is an agent skill from pproenca/dot-skills.js/React server.

When should I use Chat Apps UI SDK?

Chat Apps UI SDK fits situations like: designing such apps — even when the user only says chat app; render UI in chat; createUIResource; MCP app UI without naming a specific SDK.

How do I install Chat Apps UI SDK in Claude Code?

Run `npx skills add pproenca/dot-skills --skill chat-apps-ui-sdk -a claude-code`. Or copy the skill folder (skills/.experimental/chat-apps-ui-sdk in pproenca/dot-skills) into .claude/skills/chat-apps-ui-sdk in your project. Claude Code loads it when a task matches its description.

How do I install Chat Apps UI SDK in Codex?

Run `npx skills add pproenca/dot-skills --skill chat-apps-ui-sdk -a codex`. Or copy the skill folder (skills/.experimental/chat-apps-ui-sdk in pproenca/dot-skills) into .agents/skills/chat-apps-ui-sdk in your project. Codex loads it when a task matches its description.

Can I use Chat Apps UI SDK 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 pproenca/dot-skills --skill chat-apps-ui-sdk -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/chat-apps-ui-sdk, .gemini/skills/chat-apps-ui-sdk, .github/skills/chat-apps-ui-sdk and .opencode/skills/chat-apps-ui-sdk in your project.

What does Chat Apps UI SDK need to run?

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

Does Chat Apps UI SDK 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 Chat Apps UI SDK 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 Chat Apps UI SDK use?

Chat Apps UI SDK 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 Chat Apps UI SDK use?

About 2.4k tokens (SKILL.md is roughly 9.8k 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 16k tokens, read only when the agent opens those files.

What are the alternatives to Chat Apps UI SDK?

Skills that share tags, products or a category with Chat Apps UI SDK: UI UX Pro Max (saoudi-h/solar-icons, 182 stars), Nextcrm (pdovhomilja/nextcrm-app, 711 stars), Chatgpt App Builder (alpic-ai/skybridge, 2.1k stars) and React (openops-cloud/openops, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Chat Apps UI SDK?

pproenca (a GitHub user) maintains it in pproenca/dot-skills, which has 214 GitHub stars. The repository holds 182 skills in this directory. The repository was last updated on August 15, 2026.

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

Install Chat Apps UI SDK

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

Chat Apps UI SDK Best Practices

When to Apply

Rule Categories by Priority

Quick Reference

1. MCP Tool & Discovery Design (CRITICAL)

2. UI Resource Wiring & Templates (CRITICAL)

3. Host–Component Data Bridge (HIGH)

4. Display Modes & Responsive Layout (HIGH)

5. State & Model Context (HIGH)

6. Security & Data Boundaries (HIGH)

7. Visual Design & UX Polish (MEDIUM-HIGH)

8. Distribution & Cross-Host Portability (MEDIUM)

How to Use

Reference Files

Related Skills

Files

Compare with similar skills

Similar skills

More from pproenca/dot-skills

Related

Questions about Chat Apps UI SDK