Skybridge

Creating Apps For LLMs

Those are conversational experiences that extend AI assistants through tools and custom UI views. They're built as MCP servers invoked during conversations.

⚠️ The app is consumed by two users at once: the human and the AI Assistant LLM. They collaborate through the view—the human interacts with it, the LLM sees its state. Internalize this before writing code: the view is your shared surface.

SPEC.md keeps track of the app's requirements and design decisions. Keep it up to date as you work on the app.

No SPEC.md? → Read [discover.md](references/discover.md) first. Nothing else until SPEC.md exists.

SPEC.md exists? → Read SPEC.md, then follow [architecture.md](references/architecture.md) to design the change. Update SPEC.md, then read the relevant Implementation references below before writing code.

Setup

1. Copy template → [copy-template.md](references/copy-template.md): when starting a new project with ready SPEC.md
2. Run locally → [run-locally.md](references/run-locally.md): when ready to test, need dev server, use devtools to render views or connect to ChatGPT/Claude

Architecture

Design or evolve UX flows and API shape → [architecture.md](references/architecture.md)

Implementation

• Fetch and render data → [fetch-and-render-data.md](references/fetch-and-render-data.md): when implementing server handlers and view data fetching
• State and context → [state-and-context.md](references/state-and-context.md): when persisting view UI state and updating LLM context
• Prompt LLM → [prompt-llm.md](references/prompt-llm.md): when view needs to trigger LLM response
• UI guidelines → [ui-guidelines.md](references/ui-guidelines.md): display modes, layout constraints, theme, device, and locale
• External links → [open-external-links.md](references/open-external-links.md): when redirecting to external URLs or setting "open in app" target
• Download file → [download-file.md](references/download-file.md): when saving content to the user's filesystem
• OAuth → [oauth.md](references/oauth.md): when tools need user authentication to access user-specific data
• CSP → [csp.md](references/csp.md): when declaring allowed domains for fetch, assets, redirects, or iframes

Deploy

• Ship to production → [deploy.md](references/deploy.md): when ready to deploy via Alpic
• Publish to ChatGPT/Claude Directories → [publish.md](references/publish.md): when ready to submit for review

Full API docs: https://docs.skybridge.tech/api-reference.md

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: nbialk
• Source: nbialk/quiver-cli
• License: MIT
• Homepage: https://www.npmjs.com/package/quiver-cli

Install and usage instructions live in the source repository linked above.