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92df16da5a
Git operations (commit, push) belong in the prompt instructions, not hardcoded in the loop orchestrator. The SDK recipes should focus purely on the SDK API: create client, create session, send prompt, destroy.
69 lines
2.2 KiB
TypeScript
69 lines
2.2 KiB
TypeScript
import { readFile } from "fs/promises";
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import { CopilotClient } from "@github/copilot-sdk";
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/**
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* Ralph loop: autonomous AI task loop with fresh context per iteration.
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*
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* Two modes:
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* - "plan": reads PROMPT_plan.md, generates/updates IMPLEMENTATION_PLAN.md
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* - "build": reads PROMPT_build.md, implements tasks, runs tests, commits
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*
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* Each iteration creates a fresh session so the agent always operates in
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* the "smart zone" of its context window. State is shared between
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* iterations via files on disk (IMPLEMENTATION_PLAN.md, AGENTS.md, specs/*).
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*
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* Usage:
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* npx tsx ralph-loop.ts # build mode, 50 iterations
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* npx tsx ralph-loop.ts plan # planning mode
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* npx tsx ralph-loop.ts 20 # build mode, 20 iterations
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* npx tsx ralph-loop.ts plan 5 # planning mode, 5 iterations
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*/
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type Mode = "plan" | "build";
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async function ralphLoop(mode: Mode, maxIterations: number) {
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const promptFile = mode === "plan" ? "PROMPT_plan.md" : "PROMPT_build.md";
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const client = new CopilotClient();
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await client.start();
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console.log("━".repeat(40));
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console.log(`Mode: ${mode}`);
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console.log(`Prompt: ${promptFile}`);
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console.log(`Max: ${maxIterations} iterations`);
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console.log("━".repeat(40));
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try {
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const prompt = await readFile(promptFile, "utf-8");
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for (let i = 1; i <= maxIterations; i++) {
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console.log(`\n=== Iteration ${i}/${maxIterations} ===`);
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// Fresh session — each task gets full context budget
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const session = await client.createSession({
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model: "claude-sonnet-4.5",
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});
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try {
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await session.sendAndWait({ prompt }, 600_000);
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} finally {
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await session.destroy();
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}
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console.log(`\nIteration ${i} complete.`);
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}
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console.log(`\nReached max iterations: ${maxIterations}`);
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} finally {
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await client.stop();
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}
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}
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// Parse CLI args
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const args = process.argv.slice(2);
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const mode: Mode = args.includes("plan") ? "plan" : "build";
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const maxArg = args.find((a) => /^\d+$/.test(a));
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const maxIterations = maxArg ? parseInt(maxArg) : 50;
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ralphLoop(mode, maxIterations).catch(console.error);
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