import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import { join } from "node:path";
import { describe, it } from "node:test";

const readProjectFile = (file: string): string => readFileSync(join(process.cwd(), file), "utf-8");

describe("writer budget guidance", () => {
	it("keeps hard turn and tool caps off mutation-capable workers", () => {
		const readme = readProjectFile("README.md");
		const skill = readProjectFile("skills/pi-subagents/SKILL.md");
		const reviewLoop = readProjectFile("prompts/review-loop.md");

		for (const text of [readme, skill, reviewLoop]) {
			assert.match(text, /As a conservative orchestration policy, do not (?:pass|set) `turnBudget` or a hard `toolBudget`/);
			assert.match(text, /default tool budget blocks read\/search tools rather than mutation tools/i);
			assert.match(text, /checkpoint after the current tool returns/);
			assert.match(text, /changed files/);
			assert.match(text, /build\/test state/);
			assert.match(text, /commit or PR state/);
		}
		assert.match(readme, /elapsed timeout is not a mutation-safe boundary/i);
	});

	it("documents deferred hard-limit termination at tool-using boundaries", () => {
		const readme = readProjectFile("README.md");
		assert.match(readme, /termination occurs at the next assistant boundary/);
		assert.match(readme, /`termination-deferred`/);
	});
});