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Creating ChatGPT Apps

Guide developers through creating ChatGPT apps. Covers the full lifecycle: brainstorming ideas against UX guidelines, bootstrapping projects, implementing tools/widgets, debugging, running dev servers, and deploying. Use when a user wants to build a ChatGPT app, create an MCP server for ChatGPT.

Installable skillApache-2.0By David-Li0406Updated Oct 30, 2026
INTENDED FORChatGPTInstall in a listed agent.

instructions.md

---
name: chatgpt-app-builder-4da400146d3e
description: |
  Guide developers through creating ChatGPT apps.
  Covers the full lifecycle: brainstorming ideas against UX guidelines,
  bootstrapping projects, implementing tools/widgets, debugging, running dev servers,
  and deploying. Use when a user wants to build a ChatGPT app, create an MCP server
  for ChatGPT.
---

# Creating ChatGPT Apps

ChatGPT apps are conversational experiences that extend ChatGPT through tools and custom UI widgets. They're built as MCP servers that ChatGPT invokes during conversations.

## Workflow

1. **Brainstorm**: validate the idea and create SPEC.md. See [references/brainstorm.md](references/brainstorm.md).
2. **Architecture**: specify tools and widgets, update SPEC.md. See [references/architecture.md](references/architecture.md).
3. **Bootstrap**: scaffold the project. See [references/bootstrap.md](references/bootstrap.md).

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Platform guidance

Imported from the listed AgentSkill.sh category. Complete supplied package files and notices are retained. Required external tools and credentials are not installed. No bundled code was executed during import. Individual agent task behavior has not been tested.