co-mono/packages/coding-agent/examples/sdk/03-custom-prompt.ts
Mario Zechner 6f7c10e323 Add setEditorText/getEditorText to hook UI context, improve custom() API
- Add setEditorText() and getEditorText() to HookUIContext for prompt generator pattern
- custom() now accepts async factories for fire-and-forget work
- Add CancellableLoader component to tui package
- Add BorderedLoader component for hooks with cancel UI
- Export HookAPI, HookContext, HookFactory from main package
- Update all examples to import from packages instead of relative paths
- Update hooks.md and custom-tools.md documentation

fixes #350
2026-01-01 00:04:56 +01:00

44 lines
1.3 KiB
TypeScript

/**
* Custom System Prompt
*
* Shows how to replace or modify the default system prompt.
*/
import { createAgentSession, SessionManager } from "@mariozechner/pi-coding-agent";
// Option 1: Replace prompt entirely
const { session: session1 } = await createAgentSession({
systemPrompt: `You are a helpful assistant that speaks like a pirate.
Always end responses with "Arrr!"`,
sessionManager: SessionManager.inMemory(),
});
session1.subscribe((event) => {
if (event.type === "message_update" && event.assistantMessageEvent.type === "text_delta") {
process.stdout.write(event.assistantMessageEvent.delta);
}
});
console.log("=== Replace prompt ===");
await session1.prompt("What is 2 + 2?");
console.log("\n");
// Option 2: Modify default prompt (receives default, returns modified)
const { session: session2 } = await createAgentSession({
systemPrompt: (defaultPrompt) => `${defaultPrompt}
## Additional Instructions
- Always be concise
- Use bullet points when listing things`,
sessionManager: SessionManager.inMemory(),
});
session2.subscribe((event) => {
if (event.type === "message_update" && event.assistantMessageEvent.type === "text_delta") {
process.stdout.write(event.assistantMessageEvent.delta);
}
});
console.log("=== Modify prompt ===");
await session2.prompt("List 3 benefits of TypeScript.");
console.log();