As AI becomes part of modern applications, prompts are no longer just strings—they're becoming **part of your codebase**.
Yet most of us still write prompts like this:
ts
const prompt =
"You are a helpful assistant.\n" +
"Summarize the following text.\n" +
"Return the output as JSON.\n" +
"Keep it concise.\n" +
"Use simple language.";
This works...
Until your project grows.
---
The Problem
As prompts become larger, they quickly become difficult to maintain.
You start dealing with:
❌ Giant string templates
❌ Copy-pasted prompts
❌ Missing variables
❌ Inconsistent formatting
❌ Provider-specific implementations
❌ Difficult debugging
Unlike your application code, your prompts have:
No structure
No validation
No type safety
---
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What if prompts were treated like code?
That's exactly why I built **PromptForge Core**.
PromptForge is an open-source TypeScript toolkit for building production-ready prompts using a clean, structured API.
Instead of writing strings...
ts
const prompt =
"You are..."
You write
ts
import { pf } from "@promptforgee/core";
const summarize = pf.define({
input: z.object({
text: z.string(),
}),
output: z.object({
summary: z.string(),
}),
messages: ({ text }) => [
pf.system`
You are an expert summarizer.
`,
pf.user`
Summarize:
${text}
`,
],
});
Much easier to read.
Much easier to maintain.
---
Features
PromptForge focuses on developer experience.
✅ Type-safe prompt definitions
✅ Structured prompt composition
✅ Prompt compilation
✅ Validation
✅ Provider-agnostic architecture
✅ Reusable prompt blocks
✅ Modern TypeScript API
---
Compile Once, Use Anywhere
Instead of maintaining different formats for every provider...
PromptForge compiles your prompt into provider-specific formats.
