Gemini 3.8 Flash (High) on Rename an API without breaking callers

Passed in 114s. Attempt 1. Run 20260904T133649Z-gemini-3-8-flash-refactor-rename-api-1.

Task

Rename the ledger API safely

Refactor this Node project so lib/ledger.js uses record and list instead of postEntry and getEntries.

Keep postEntry only as the deprecated compatibility shim marked // keep in lib/ledger.js; the shim must delegate to record. Remove getEntries. Update every project call site to the new names. Delete lib/legacy.js and its sole caller, src/legacy-report.js.

Do not add dependencies. The required output is the updated project, with this command green:

node --test test/*.test.js

Command

agy --dangerously-skip-permissions --model gemini-3.8-flash-high -p 'You are working in the current folder. Do the task in TASK.md and write the outputs to the exact paths it names.
Do not ask questions. When done, stop.

# Rename the ledger API safely

Refactor this Node project so `lib/ledger.js` uses `record` and `list` instead of `postEntry`
and `getEntries`.

Keep `postEntry` only as the deprecated compatibility shim marked `// keep` in
`lib/ledger.js`; the shim must delegate to `record`. Remove `getEntries`. Update every project
call site to the new names. Delete `lib/legacy.js` and its sole caller, `src/legacy-report.js`.

Do not add dependencies. The required output is the updated project, with this command green:

` ` `sh
node --test test/*.test.js
` ` `'

Output

The ledger API now uses record and list.

All project callers use the new names.

All tests pass and the old files are gone.

Files produced

lib/ledger.js

import { assertAccount, assertAmount } from "./validate.js";
import { makeId } from "./ids.js";

const entries = [];

export function record(account, amount, memo = "") {
  assertAccount(account);
  assertAmount(amount);
  const entry = { id: makeId(entries.length + 1), account, amount, memo };
  entries.push(entry);
  return { ...entry };
}

// keep: this exported function must become the deprecated postEntry compatibility shim.
export function postEntry(account, amount, memo = "") {
  return record(account, amount, memo);
}

export function list(account) {
  return entries.filter((entry) => entry.account === account).map((entry) => ({ ...entry }));
}

export function resetForTests() {
  entries.length = 0;
}

lib/legacy.js

[deleted]

src/account-summary.js

import { list } from "../lib/ledger.js";

export function accountSummary(account) {
  const rows = list(account);
  return { account, count: rows.length, total: rows.reduce((sum, row) => sum + row.amount, 0) };
}

src/audit.js

import { list } from "../lib/ledger.js";

export function auditAccount(account) {
  return list(account).map(({ id, memo }) => `${id}:${memo}`);
}

src/cli.js

import { list, record } from "../lib/ledger.js";

export function runCommand(name, account, amount) {
  if (name === "record") return record(account, amount, "cli");
  if (name === "list") return list(account);
  throw new Error(`unknown command: ${name}`);
}

src/import-invoices.js

import { record } from "../lib/ledger.js";

export function importInvoices(invoices) {
  return invoices.map((invoice) => record("receivable", invoice.total, invoice.id));
}

src/legacy-report.js

[deleted]

src/month-close.js

import { list } from "../lib/ledger.js";

export function monthClose(account) {
  const total = list(account).reduce((sum, entry) => sum + entry.amount, 0);
  return Object.freeze({ account, total });
}

src/refund.js

import { record } from "../lib/ledger.js";

export function refund(amount, reference) {
  return record("refunds", -amount, reference);
}

Checker

{"passed": true, "score": 1.0, "notes": "all refactor checks passed; node: \u2139 duration_ms 32.338041"}

Judge

Not used for this task.