Imported as a linear vendor commit so forge rebases do not replay the upstream root tree. git-subtree-dir: third_party/pi git-subtree-split: 71023aec1546d6d677a65669c5665c0927ce0dd0
46 lines
2.0 KiB
TypeScript
46 lines
2.0 KiB
TypeScript
// A chat turn.
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// Run from packages/durable:
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// node --conditions=source --experimental-strip-types test/examples/14-chat.ts
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import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
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import { createModels } from "@earendil-works/pi-ai/models";
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import { fauxAssistantMessage, fauxProvider } from "@earendil-works/pi-ai/providers/faux";
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import { AssistantEntry, createRegistry, defineExtension, Harness, MemoryStorage, section } from "../../src/index.ts";
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const context = BACKGROUND_CONTEXT;
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// The faux provider stands in for a real model (see 16-real-model.ts).
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const faux = fauxProvider();
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const models = createModels();
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models.setProvider(faux.provider);
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faux.setResponses([fauxAssistantMessage("Paris.")]);
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const registry = createRegistry();
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registry.install(
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defineExtension({
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name: "terse",
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sections: [section("preamble", () => "You answer in one word.", { tag: false })],
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}),
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);
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const harness = await Harness.open(new MemoryStorage(), { models, registry }, context);
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const root = await harness.root(context, { agent: { model: { provider: "faux", modelId: "faux-1" } } });
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// submit() durably admits user input and returns a Submission. The built-in
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// pi.generation task prepares the system prompt from the agent's sections,
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// calls the model, and appends the answer; wait() resolves once the input is
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// answered or has failed.
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const capital = await root.submit({ type: "input", content: "Capital of France?" }, context);
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const answered = await capital.wait(context);
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if (answered.status === "done" && answered.type === "input") {
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const entry = await root.commit((tx) => tx.entry(AssistantEntry, answered.answer), context);
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const reply = entry?.model?.[0];
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console.log("answer:", reply?.role === "assistant" ? reply.content : reply);
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}
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// The transcript holds the user input, the positional system prompt, and the answer.
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const transcript = await root.entries({}, 10, undefined, context);
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console.log(
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"transcript:",
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[...transcript.items].reverse().map((entry) => entry.kind),
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);
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await harness.close(context);
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