bench

codex · gpt-5.6-sol · low · backend/inventory-api · attempt 1

v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1

gate_failed

Sep 6, 2026, 09:32 AMSep 6, 2026, 09:35 AM on unknown-host · suite v2026.09

Command

codex exec --json -m gpt-5.6-sol -c model_reasoning_effort=low -s workspace-write --dangerously-bypass-approvals-and-sandbox -C /Users/decod3rslabs/www/shipshitdev/public/benchmark/.runs/v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1/workspace --skip-git-repo-check -o /Users/decod3rslabs/www/shipshitdev/public/benchmark/.runs/v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1/workspace/../codex-last-message.md # Implement the inventory service

You are working inside an empty Bun and TypeScript project. `openapi.yaml` in this directory
describes an inventory service contract. `README.md` describes the runtime requirements.
Implement the service so it conforms to the contract.

## Scope

Read `openapi.yaml` fully before writing code. It defines:

- Products: create, list (paginated), fetch by id, update.
- Warehouses: create, list.
- Stock movements: record a movement of stock for a product at a warehouse, supporting a
  client-supplied idempotency key so retried requests do not double-apply.
- A low-stock report endpoint that lists products whose stock has fallen below their
  configured reorder threshold.
- Pagination on every list endpoint.
- A fixed error shape for validation failures, used consistently across every endpoint.

## Requirements

- Design a schema for products, warehouses, and stock movements, and store it in SQLite via
  `bun:sqlite`, reading the database file path from the `DATABASE_PATH` environment
  variable.
- Write migrations that create this schema and are safe to run more than once against the
  same database file without error or duplication.
- `bun run migrate` must run those migrations.
- `bun run start` must start an HTTP server listening on the port from the `PORT`
  environment variable, implementing every endpoint in `openapi.yaml`.
- Validate every request body and query parameter against the contract, and return the
  error shape from `openapi.yaml` (not a framework default) for every validation failure.
- Apply the idempotency key on stock movements: replaying the same key must not create a
  second movement or double-count stock.
- Use parameterized queries everywhere; never build SQL by concatenating request input.
- Add a `GET /health` endpoint that returns `200` once the service is ready to accept
  traffic. It is not part of the OpenAPI contract; it exists only so the process can be
  health-checked.

## Constraints

- Bun runtime only. Do not add a separate database server or ORM; use `bun:sqlite` directly.
- Do not change `openapi.yaml`.

Work only within this fixture directory.

codex codex-cli 0.153.4 · permission mode workspace-write+bypass-approvals-and-sandbox · max 80 turns · $15 budget · 45m timebox

Tokens in

315.7K

Tokens out

8.1K

Cache read

290.4K

Cache write

Turns

1

Tool calls

8

Wall time

2m 52s

API-equiv. cost

$1.54

Gates

  • passinstall0s

    bun install v1.4.2 (744846f84) + @types/bun@1.4.1 + typescript@7.0.2 6 packages installed [194.00ms] Resolving dependencies Resolved, downloaded and extracted [2] Saved lockfile

  • failmigrate0s

    $ bun run src/migrate.ts 1 | import { Database } from "bun:sqlite"; 2 | 3 | export function databasePath(): string { 4 | const path = process.env.DATABASE_PATH; 5 | if (!path) throw new Error("DATABASE_PATH is required"); ^ error: DATABASE_PATH is required at databasePath (/Users/decod3rslabs/www/shipshitdev/public/benchmark/.runs/v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1/workspace/src/database.ts:5:24) at openDatabase (/Users/decod3rslabs/www/shipshitdev/public/benchmark/.runs/v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1/workspace/src/database.ts:10:27) at /Users/decod3rslabs/www/shipshitdev/public/benchmark/.runs/v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1/workspace/src/migrate.ts:3:12 Bun v1.4.2 (macOS arm64) error: script "migrate" exited with code 1

Diff

diff --git a/package.json b/package.json
index 87bcbbb..7ab5a26 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,11 @@
{
"name": "inventory-api-fixture",
"private": true,
+ "scripts": {
+ "migrate": "bun run src/migrate.ts",
+ "start": "bun run src/server.ts",
+ "typecheck": "tsc --noEmit"
+ },
"devDependencies": {
"typescript": "7.0.2",
"@types/bun": "1.4.1"
diff --git a/src/database.ts b/src/database.ts
new file mode 100644
index 0000000..4c70d4a
--- /dev/null
+++ b/src/database.ts
@@ -0,0 +1,58 @@
+import { Database } from "bun:sqlite";
+
+export function databasePath(): string {
+ const path = process.env.DATABASE_PATH;
+ if (!path) throw new Error("DATABASE_PATH is required");
+ return path;
+}
+
+export function openDatabase(): Database {
+ const db = new Database(databasePath(), { create: true });
+ db.exec("PRAGMA foreign_keys = ON");
+ db.exec("PRAGMA journal_mode = WAL");
+ db.exec("PRAGMA busy_timeout = 5000");
+ return db;
+}
+
+export function migrate(db: Database): void {
+ db.exec(`
+ CREATE TABLE IF NOT EXISTS products (
+ id TEXT PRIMARY KEY,
+ sku TEXT NOT NULL UNIQUE,
+ name TEXT NOT NULL,
+ reorder_threshold INTEGER NOT NULL CHECK (reorder_threshold >= 0),
+ created_at TEXT NOT NULL,
+ updated_at TEXT NOT NULL
+ );
+
+ CREATE TABLE IF NOT EXISTS warehouses (
+ id TEXT PRIMARY KEY,
+ code TEXT NOT NULL UNIQUE,
+ name TEXT NOT NULL,
+ created_at TEXT NOT NULL
+ );
+
+ CREATE TABLE IF NOT EXISTS stock_balances (
+ product_id TEXT NOT NULL REFERENCES products(id),
+ warehouse_id TEXT NOT NULL REFERENCES warehouses(id),
+ quantity INTEGER NOT NULL CHECK (quantity >= 0),
+ PRIMARY KEY (product_id, warehouse_id)
+ );
+
+ CREATE TABLE IF NOT EXISTS stock_movements (
+ id TEXT PRIMARY KEY,
+ product_id TEXT NOT NULL REFERENCES products(id),
+ warehouse_id TEXT NOT NULL REFERENCES warehouses(id),
+ type TEXT NOT NULL CHECK (type IN ('receipt', 'shipment', 'adjustment')),
+ quantity INTEGER NOT NULL,
+ note TEXT,
+ idempotency_key TEXT NOT NULL UNIQUE,
+ request_fingerprint TEXT NOT NULL,
+ resulting_stock INTEGER NOT NULL CHECK (resulting_stock >= 0),
+ created_at TEXT NOT NULL
+ );
+
+ CREATE INDEX IF NOT EXISTS stock_movements_product_id_idx
+ ON stock_movements(product_id);
+ `);
+}
diff --git a/src/migrate.ts b/src/migrate.ts
new file mode 100644
index 0000000..6343f4d
--- /dev/null
+++ b/src/migrate.ts
@@ -0,0 +1,8 @@
+import { migrate, openDatabase } from "./database";
+
+const db = openDatabase();
+try {
+ migrate(db);
+} finally {
+ db.close();
+}
diff --git a/src/server.ts b/src/server.ts
new file mode 100644
index 0000000..97b97ce
--- /dev/null
+++ b/src/server.ts
@@ -0,0 +1,194 @@
+import type { Database } from "bun:sqlite";
+import { migrate, openDatabase } from "./database";
+
+type Detail = { field: string; issue: string };
+type JsonObject = Record<string, unknown>;
+type ProductRow = { id: string; sku: string; name: string; reorder_threshold: number; created_at: string; updated_at: string; stock: number };
+type WarehouseRow = { id: string; code: string; name: string; created_at: string };
+type MovementRow = { id: string; product_id: string; warehouse_id: string; type: string; quantity: number; note: string | null; idempotency_key: string; request_fingerprint: string; resulting_stock: number; created_at: string };
+
+class HttpError extends Error {
+ constructor(public status: number, public code: "validation_error" | "not_found" | "conflict" | "internal_error", message: string, public details?: Detail[]) { super(message); }
+}
+
+const db = openDatabase();
+migrate(db);
+
+const jsonHeaders = { "content-type": "application/json; charset=utf-8" };
+const respond = (value: unknown, status = 200) => Response.json(value, { status, headers: jsonHeaders });
+const fail = (error: HttpError) => respond({ error: { code: error.code, message: error.message, ...(error.details?.length ? { details: error.details } : {}) } }, error.status);
+const validation = (details: Detail[], message = "Request validation failed"): never => { throw new HttpError(400, "validation_error", message, details); };
+const uuidPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
+const codePattern = /^[A-Za-z0-9_-]+$/;
+
+async function body(request: Request): Promise<JsonObject> {
+ let value: unknown;
+ try { value = await request.json(); } catch { validation([{ field: "body", issue: "must be valid JSON" }]); }
+ if (value === null || typeof value !== "object" || Array.isArray(value)) validation([{ field: "body", issue: "must be an object" }]);
+ return value as JsonObject;
+}
+
+function rejectExtra(value: JsonObject, allowed: string[], details: Detail[]): void {
+ for (const key of Object.keys(value)) if (!allowed.includes(key)) details.push({ field: key, issue: "is not allowed" });
+}
+function stringField(value: JsonObject, field: string, details: Detail[], options: { required?: boolean; max: number; pattern?: RegExp }): string | undefined {
+ const item = value[field];
+ if (item === undefined) { if (options.required) details.push({ field, issue: "is required" }); return; }
+ if (typeof item !== "string") { details.push({ field, issue: "must be a string" }); return; }
+ if (item.length < 1) details.push({ field, issue: "must not be empty" });
+ if (item.length > options.max) details.push({ field, issue: `must be at most ${options.max} characters` });
+ if (options.pattern && !options.pattern.test(item)) details.push({ field, issue: "has an invalid format" });
+ return item;
+}
+function integerField(value: JsonObject, field: string, details: Detail[], required = false, minimum = 0): number | undefined {
+ const item = value[field];
+ if (item === undefined) { if (required) details.push({ field, issue: "is required" }); return; }
+ if (!Number.isInteger(item) || (item as number) < minimum) { details.push({ field, issue: `must be an integer greater than or equal to ${minimum}` }); return; }
+ return item as number;
+}
+function uuidField(value: JsonObject, field: string, details: Detail[]): string | undefined {
+ const item = value[field];
+ if (typeof item !== "string") { details.push({ field, issue: item === undefined ? "is required" : "must be a UUID" }); return; }
+ if (!uuidPattern.test(item)) details.push({ field, issue: "must be a UUID" });
+ return item;
+}
+function pathUuid(value: string, field: string): void { if (!uuidPattern.test(value)) validation([{ field, issue: "must be a UUID" }]); }
+
+function pagination(url: URL): { page: number; pageSize: number; offset: number } {
+ const details: Detail[] = [];
+ for (const key of url.searchParams.keys()) if (key !== "page" && key !== "pageSize") details.push({ field: key, issue: "is not allowed" });
+ const parse = (field: string, fallback: number, max?: number) => {
+ const values = url.searchParams.getAll(field);
+ if (values.length > 1) { details.push({ field, issue: "must be provided once" }); return fallback; }
+ if (!values.length) return fallback;
+ const raw = values[0]!;
+ if (!/^[0-9]+$/.test(raw) || Number(raw) < 1 || (max !== undefined && Number(raw) > max)) { details.push({ field, issue: max ? `must be an integer from 1 to ${max}` : "must be an integer greater than or equal to 1" }); return fallback; }
+ return Number(raw);
+ };
+ const page = parse("page", 1), pageSize = parse("pageSize", 20, 100);
+ if (details.length) validation(details, "Invalid pagination parameters");
+ return { page, pageSize, offset: (page - 1) * pageSize };
+}
+
+const productSelect = `SELECT p.id, p.sku, p.name, p.reorder_threshold, p.created_at, p.updated_at, COALESCE(SUM(b.quantity), 0) AS stock FROM products p LEFT JOIN stock_balances b ON b.product_id = p.id`;
+const product = (r: ProductRow) => ({ id: r.id, sku: r.sku, name: r.name, reorderThreshold: r.reorder_threshold, stock: r.stock, createdAt: r.created_at, updatedAt: r.updated_at });
+const warehouse = (r: WarehouseRow) => ({ id: r.id, code: r.code, name: r.name, createdAt: r.created_at });
+const movement = (r: MovementRow) => ({ id: r.id, productId: r.product_id, warehouseId: r.warehouse_id, type: r.type, quantity: r.quantity, ...(r.note !== null ? { note: r.note } : {}), idempotencyKey: r.idempotency_key, resultingStock: r.resulting_stock, createdAt: r.created_at });
+const pageMeta = (page: number, pageSize: number, total: number) => ({ page, pageSize, total, totalPages: Math.ceil(total / pageSize) });
+
+async function createProduct(request: Request): Promise<Response> {
+ const value = await body(request), details: Detail[] = [];
+ rejectExtra(value, ["sku", "name", "reorderThreshold"], details);
+ const sku = stringField(value, "sku", details, { required: true, max: 64, pattern: codePattern });
+ const name = stringField(value, "name", details, { required: true, max: 200 });
+ const threshold = integerField(value, "reorderThreshold", details, true);
+ if (details.length) validation(details);
+ const id = crypto.randomUUID(), now = new Date().toISOString();
+ try { db.query("INSERT INTO products (id, sku, name, reorder_threshold, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?)").run(id, sku!, name!, threshold!, now, now); }
+ catch (error) { if (String(error).includes("UNIQUE constraint failed")) throw new HttpError(409, "conflict", "A product with this sku already exists"); throw error; }
+ return respond({ id, sku, name, reorderThreshold: threshold, stock: 0, createdAt: now, updatedAt: now }, 201);
+}
+
+function listProducts(url: URL): Response {
+ const { page, pageSize, offset } = pagination(url);
+ const total = (db.query("SELECT COUNT(*) AS count FROM products").get() as { count: number }).count;
+ const rows = db.query(`${productSelect} GROUP BY p.id ORDER BY p.created_at, p.id LIMIT ? OFFSET ?`).all(pageSize, offset) as ProductRow[];
+ return respond({ data: rows.map(product), pagination: pageMeta(page, pageSize, total) });
+}
+
+function getProduct(id: string): Response {
+ pathUuid(id, "productId");
+ const row = db.query(`${productSelect} WHERE p.id = ? GROUP BY p.id`).get(id) as ProductRow | null;
+ if (!row) throw new HttpError(404, "not_found", "Product not found");
+ return respond(product(row));
+}
+
+async function updateProduct(request: Request, id: string): Promise<Response> {
+ pathUuid(id, "productId");
+ const value = await body(request), details: Detail[] = [];
+ rejectExtra(value, ["name", "reorderThreshold"], details);
+ if (Object.keys(value).length === 0) details.push({ field: "body", issue: "must contain at least one property" });
+ const name = stringField(value, "name", details, { max: 200 });
+ const threshold = integerField(value, "reorderThreshold", details);
+ if (details.length) validation(details);
+ if (!db.query("SELECT 1 FROM products WHERE id = ?").get(id)) throw new HttpError(404, "not_found", "Product not found");
+ const now = new Date().toISOString();
+ db.query("UPDATE products SET name = COALESCE(?, name), reorder_threshold = COALESCE(?, reorder_threshold), updated_at = ? WHERE id = ?").run(name ?? null, threshold ?? null, now, id);
+ return getProduct(id);
+}
+
+async function createWarehouse(request: Request): Promise<Response> {
+ const value = await body(request), details: Detail[] = [];
+ rejectExtra(value, ["code", "name"], details);
+ const code = stringField(value, "code", details, { required: true, max: 32, pattern: codePattern });
+ const name = stringField(value, "name", details, { required: true, max: 200 });
+ if (details.length) validation(details);
+ const id = crypto.randomUUID(), now = new Date().toISOString();
+ try { db.query("INSERT INTO warehouses (id, code, name, created_at) VALUES (?, ?, ?, ?)").run(id, code!, name!, now); }
+ catch (error) { if (String(error).includes("UNIQUE constraint failed")) throw new HttpError(409, "conflict", "A warehouse with this code already exists"); throw error; }
+ return respond({ id, code, name, createdAt: now }, 201);
+}
+
+function listWarehouses(url: URL): Response {
+ const { page, pageSize, offset } = pagination(url);
+ const total = (db.query("SELECT COUNT(*) AS count FROM warehouses").get() as { count: number }).count;
+ const rows = db.query("SELECT id, code, name, created_at FROM warehouses ORDER BY created_at, id LIMIT ? OFFSET ?").all(pageSize, offset) as WarehouseRow[];
+ return respond({ data: rows.map(warehouse), pagination: pageMeta(page, pageSize, total) });
+}
+
+async function createMovement(request: Request): Promise<Response> {
+ const key = request.headers.get("Idempotency-Key"), details: Detail[] = [];
+ if (key === null || key.length < 1) details.push({ field: "Idempotency-Key", issue: "is required" });
+ else if (key.length > 200) details.push({ field: "Idempotency-Key", issue: "must be at most 200 characters" });
+ const value = await body(request);
+ rejectExtra(value, ["productId", "warehouseId", "type", "quantity", "note"], details);
+ const productId = uuidField(value, "productId", details), warehouseId = uuidField(value, "warehouseId", details);
+ const type = value.type;
+ if (typeof type !== "string" || !["receipt", "shipment", "adjustment"].includes(type)) details.push({ field: "type", issue: "must be one of receipt, shipment, adjustment" });
+ const quantity = value.quantity;
+ if (!Number.isInteger(quantity) || (type === "adjustment" ? quantity === 0 : (quantity as number) <= 0)) details.push({ field: "quantity", issue: type === "adjustment" ? "must be a nonzero integer" : "must be a positive integer" });
+ let note: string | undefined;
+ if (value.note !== undefined) { if (typeof value.note !== "string") details.push({ field: "note", issue: "must be a string" }); else { note = value.note; if (note.length > 500) details.push({ field: "note", issue: "must be at most 500 characters" }); } }
+ if (details.length) validation(details);
+ const fingerprint = JSON.stringify({ productId, warehouseId, type, quantity, ...(note !== undefined ? { note } : {}) });
+ const apply = db.transaction((): MovementRow => {
+ const existing = db.query("SELECT * FROM stock_movements WHERE idempotency_key = ?").get(key!) as MovementRow | null;
+ if (existing) { if (existing.request_fingerprint !== fingerprint) throw new HttpError(409, "conflict", "Idempotency-Key was reused with a different request body"); return existing; }
+ if (!db.query("SELECT 1 FROM products WHERE id = ?").get(productId!)) throw new HttpError(404, "not_found", "Product not found");
+ if (!db.query("SELECT 1 FROM warehouses WHERE id = ?").get(warehouseId!)) throw new HttpError(404, "not_found", "Warehouse not found");
+ const current = (db.query("SELECT quantity FROM stock_balances WHERE product_id = ? AND warehouse_id = ?").get(productId!, warehouseId!) as { quantity: number } | null)?.quantity ?? 0;
+ const delta = type === "shipment" ? -(quantity as number) : quantity as number;
+ const next = current + delta;
+ if (next < 0) throw new HttpError(409, "conflict", "Movement would take stock below zero");
+ db.query("INSERT INTO stock_balances (product_id, warehouse_id, quantity) VALUES (?, ?, ?) ON CONFLICT(product_id, warehouse_id) DO UPDATE SET quantity = excluded.quantity").run(productId!, warehouseId!, next);
+ const total = (db.query("SELECT COALESCE(SUM(quantity), 0) AS stock FROM stock_balances WHERE product_id = ?").get(productId!) as { stock: number }).stock;
+ const row: MovementRow = { id: crypto.randomUUID(), product_id: productId!, warehouse_id: warehouseId!, type: type as string, quantity: quantity as number, note: note ?? null, idempotency_key: key!, request_fingerprint: fingerprint, resulting_stock: total, created_at: new Date().toISOString() };
+ db.query("INSERT INTO stock_movements (id, product_id, warehouse_id, type, quantity, note, idempotency_key, request_fingerprint, resulting_stock, created_at) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)").run(row.id, row.product_id, row.warehouse_id, row.type, row.quantity, row.note, row.idempotency_key, row.request_fingerprint, row.resulting_stock, row.created_at);
+ return row;
+ });
+ return respond(movement(apply()), 201);
+}
+
+function lowStock(url: URL): Response {
+ const { page, pageSize, offset } = pagination(url);
+ const base = `FROM products p LEFT JOIN stock_balances b ON b.product_id = p.id GROUP BY p.id HAVING COALESCE(SUM(b.quantity), 0) < p.reorder_threshold`;
+ const total = (db.query(`SELECT COUNT(*) AS count FROM (SELECT p.id ${base})`).get() as { count: number }).count;
+ const rows = db.query(`SELECT p.id AS productId, p.sku, p.name, p.reorder_threshold AS reorderThreshold, COALESCE(SUM(b.quantity), 0) AS stock ${base} ORDER BY p.created_at, p.id LIMIT ? OFFSET ?`).all(pageSize, offset);
+ return respond({ data: rows, pagination: pageMeta(page, pageSize, total) });
+}
+
+async function route(request: Request): Promise<Response> {
+ const url = new URL(request.url), method = request.method;
+ if (method === "GET" && url.pathname === "/health") return respond({ status: "ok" });
+ if (url.pathname === "/products") { if (method === "POST") return createProduct(request); if (method === "GET") return listProducts(url); }
+ const productMatch = url.pathname.match(/^\/products\/([^/]+)$/);
+ if (productMatch) { if (method === "GET") return getProduct(productMatch[1]!); if (method === "PATCH") return updateProduct(request, productMatch[1]!); }
+ if (url.pathname === "/warehouses") { if (method === "POST") return createWarehouse(request); if (method === "GET") return listWarehouses(url); }
+ if (url.pathname === "/stock-movements" && method === "POST") return createMovement(request);
+ if (url.pathname === "/reports/low-stock" && method === "GET") return lowStock(url);
+ throw new HttpError(404, "not_found", "Route not found");
+}
+
+const rawPort = process.env.PORT;
+if (!rawPort || !/^\d+$/.test(rawPort) || Number(rawPort) < 1 || Number(rawPort) > 65535) throw new Error("PORT must be an integer from 1 to 65535");
+Bun.serve({ port: Number(rawPort), fetch: async request => { try { return await route(request); } catch (error) { if (error instanceof HttpError) return fail(error); console.error(error); return fail(new HttpError(500, "internal_error", "Internal server error")); } } });

Transcript

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  "type": "item.completed",
  "item": {
    "id": "item_0",
    "type": "error",
    "message": "Skill descriptions were shortened to fit the skills context budget. Codex can still see every skill, but some descriptions are shorter. Disable unused skills or plugins to leave more room for the rest."
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  "type": "item.completed",
  "item": {
    "id": "item_1",
    "type": "agent_message",
    "text": "I’ll inspect the full contract and runtime notes first, then implement against the exact schemas and verify migrations plus endpoint behavior locally."
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  "item": {
    "id": "item_2",
    "type": "command_execution",
    "command": "/bin/zsh -lc \"pwd && rg --files -a && sed -n '1,240p' openapi.yaml && sed -n '241,520p' openapi.yaml && sed -n '1,240p' README.md && if [ -d .agents/memory ]; then rg --files .agents/memory; fi\"",
    "aggregated_output": "",
    "exit_code": null,
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{
  "type": "item.completed",
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    "aggregated_output": "/Users/decod3rslabs/www/shipshitdev/public/benchmark/.runs/v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1/workspace\nopenapi.yaml\ntsconfig.json\npackage.json\nREADME.md\nopenapi: \"3.1.0\"\ninfo:\n  title: Inventory API\n  version: \"1.0.0\"\n  description: >\n    Products, warehouses, and stock movements for a small inventory service.\n    Every list endpoint is paginated with `page` / `pageSize` query parameters.\n    Every validation failure across every endpoint returns the same fixed error\n    shape defined in `#/components/schemas/Error`: an object with a single\n    `error` key holding `code`, `message`, and an optional `details` array of\n    `{ field, issue }` pairs. `GET /health` is a harness-only readiness probe\n    and is intentionally not part of this contract.\n\nservers:\n  - url: http://localhost:4175\n\npaths:\n  /products:\n    post:\n      operationId: createProduct\n      summary: Create a product\n      requestBody:\n        required: true\n        content:\n          application/json:\n            schema:\n              $ref: \"#/components/schemas/ProductCreate\"\n      responses:\n        \"201\":\n          description: Product created\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Product\"\n        \"400\":\n          description: Validation failure\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n        \"409\":\n          description: A product with this sku already exists\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n    get:\n      operationId: listProducts\n      summary: List products\n      parameters:\n        - $ref: \"#/components/parameters/Page\"\n        - $ref: \"#/components/parameters/PageSize\"\n      responses:\n        \"200\":\n          description: Paginated list of products\n          content:\n            application/json:\n              schema:\n                type: object\n                required: [data, pagination]\n                properties:\n                  data:\n                    type: array\n                    items:\n                      $ref: \"#/components/schemas/Product\"\n                  pagination:\n                    $ref: \"#/components/schemas/Pagination\"\n        \"400\":\n          description: Invalid pagination parameters\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n\n  /products/{productId}:\n    parameters:\n      - name: productId\n        in: path\n        required: true\n        schema:\n          type: string\n          format: uuid\n    get:\n      operationId: getProduct\n      summary: Fetch a product by id\n      responses:\n        \"200\":\n          description: The product\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Product\"\n        \"404\":\n          description: No product with this id\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n    patch:\n      operationId: updateProduct\n      summary: Update a product's name and/or reorder threshold\n      requestBody:\n        required: true\n        content:\n          application/json:\n            schema:\n              $ref: \"#/components/schemas/ProductUpdate\"\n      responses:\n        \"200\":\n          description: The updated product\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Product\"\n        \"400\":\n          description: Validation failure\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n        \"404\":\n          description: No product with this id\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n\n  /warehouses:\n    post:\n      operationId: createWarehouse\n      summary: Create a warehouse\n      requestBody:\n        required: true\n        content:\n          application/json:\n            schema:\n              $ref: \"#/components/schemas/WarehouseCreate\"\n      responses:\n        \"201\":\n          description: Warehouse created\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Warehouse\"\n        \"400\":\n          description: Validation failure\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n        \"409\":\n          description: A warehouse with this code already exists\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n    get:\n      operationId: listWarehouses\n      summary: List warehouses\n      parameters:\n        - $ref: \"#/components/parameters/Page\"\n        - $ref: \"#/components/parameters/PageSize\"\n      responses:\n        \"200\":\n          description: Paginated list of warehouses\n          content:\n            application/json:\n              schema:\n                type: object\n                required: [data, pagination]\n                properties:\n                  data:\n                    type: array\n                    items:\n                      $ref: \"#/components/schemas/Warehouse\"\n                  pagination:\n                    $ref: \"#/components/schemas/Pagination\"\n        \"400\":\n          description: Invalid pagination parameters\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n\n  /stock-movements:\n    post:\n      operationId: createStockMovement\n      summary: Record a stock movement for a product at a warehouse\n      description: >\n        Requires a client-supplied `Idempotency-Key` header. Replaying the same\n        key with the same request body returns the original movement and does\n        not double-apply the stock change. Replaying the same key with a\n        different body is a conflict.\n      parameters:\n        - name: Idempotency-Key\n          in: header\n          required: true\n          schema:\n            type: string\n            minLength: 1\n            maxLength: 200\n      requestBody:\n        required: true\n        content:\n          application/json:\n            schema:\n              $ref: \"#/components/schemas/StockMovementCreate\"\n      responses:\n        \"201\":\n          description: The movement, applied or replayed idempotently\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/StockMovement\"\n        \"400\":\n          description: Validation failure\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n        \"404\":\n          description: Unknown productId or warehouseId\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n        \"409\":\n          description: >\n            Either the movement would take stock below zero, or the\n            Idempotency-Key was reused with a different request body.\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n\n  /reports/low-stock:\n    get:\n      operationId: getLowStockReport\n      summary: List products whose stock has fallen below their reorder threshold\n      parameters:\n        - $ref: \"#/components/parameters/Page\"\n        - $ref: \"#/components/parameters/PageSize\"\n      responses:\n        \"200\":\n          description: Paginated list of low-stock products\n          content:\n            application/json:\n              schema:\n                type: object\n                required: [data, pagination]\n                properties:\n                  data:\n                    type: array\n                    items:\n                      $ref: \"#/components/schemas/LowStockItem\"\n                  pagination:\n                    $ref: \"#/components/schemas/Pagination\"\n        \"400\":\n          description: Invalid pagination parameters\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n\ncomponents:\n  parameters:\n    Page:\n      name: page\n      in: query\n      required: false\n      schema:\n        type: integer\n        minimum: 1\n        default: 1\n    PageSize:\n      name: pageSize\n      in: query\n      required: false\n      schema:\n        type: integer\n        minimum: 1\n        maximum: 100\n        default: 20\n\n  schemas:\n    Error:\n      type: object\n      required: [error]\n      additionalProperties: false\n      properties:\n        error:\n          type: object\n          required: [code, message]\n          additionalProperties: false\n          properties:\n            code:\n              type: string\n              enum: [validation_error, not_found, conflict, internal_error]\n              description: >\n                `validation_error` on every 400 response, `not_found` on every\n                404 response, `conflict` on every 409 response, and\n                `internal_error` on any unexpected 500 response.\n            message:\n              type: string\n            details:\n              type: array\n              items:\n                type: object\n                required: [field, issue]\n                properties:\n                  field:\n                    type: string\n                  issue:\n                    type: string\n\n    Pagination:\n      type: object\n      required: [page, pageSize, total, totalPages]\n      properties:\n        page:\n          type: integer\n          minimum: 1\n        pageSize:\n          type: integer\n          minimum: 1\n        total:\n          type: integer\n          minimum: 0\n        totalPages:\n          type: integer\n          minimum: 0\n\n    ProductCreate:\n      type: object\n      required: [sku, name, reorderThreshold]\n      additionalProperties: false\n      properties:\n        sku:\n          type: string\n          minLength: 1\n          maxLength: 64\n          pattern: \"^[A-Za-z0-9_-]+$\"\n        name:\n          type: string\n          minLength: 1\n          maxLength: 200\n        reorderThreshold:\n          type: integer\n          minimum: 0\n\n    ProductUpdate:\n      type: object\n      minProperties: 1\n      additionalProperties: false\n      properties:\n        name:\n          type: string\n          minLength: 1\n          maxLength: 200\n        reorderThreshold:\n          type: integer\n          minimum: 0\n\n    Product:\n      type: object\n      required: [id, sku, name, reorderThreshold, stock, createdAt, updatedAt]\n      properties:\n        id:\n          type: string\n          format: uuid\n        sku:\n          type: string\n        name:\n          type: string\n        reorderThreshold:\n          type: integer\n          minimum: 0\n        stock:\n          type: integer\n          minimum: 0\n          description: Total quantity across all warehouses, computed from stock movements.\n        createdAt:\n          type: string\n          format: date-time\n        updatedAt:\n          type: string\n          format: date-time\n\n    WarehouseCreate:\n      type: object\n      required: [code, name]\n      additionalProperties: false\n      properties:\n        code:\n          type: string\n          minLength: 1\n          maxLength: 32\n          pattern: \"^[A-Za-z0-9_-]+$\"\n        name:\n          type: string\n          minLength: 1\n          maxLength: 200\n\n    Warehouse:\n      type: object\n      required: [id, code, name, createdAt]\n      properties:\n        id:\n          type: string\n          format: uuid\n        code:\n          type: string\n        name:\n          type: string\n        createdAt:\n          type: string\n          format: date-time\n\n    StockMovementCreate:\n      type: object\n      required: [productId, warehouseId, type, quantity]\n      additionalProperties: false\n      properties:\n        productId:\n          type: string\n          format: uuid\n        warehouseId:\n          type: string\n          format: uuid\n        type:\n          type: string\n          enum: [receipt, shipment, adjustment]\n        quantity:\n          type: integer\n          description: >\n            For `receipt` and `shipment`, a positive integer amount. For\n            `adjustment`, a nonzero signed delta applied directly to stock.\n        note:\n          type: string\n          maxLength: 500\n\n    StockMovement:\n      type: object\n      required:\n        - id\n        - productId\n        - warehouseId\n        - type\n        - quantity\n        - idempotencyKey\n        - resultingStock\n        - createdAt\n      properties:\n        id:\n          type: string\n          format: uuid\n        productId:\n          type: string\n          format: uuid\n        warehouseId:\n          type: string\n          format: uuid\n        type:\n          type: string\n          enum: [receipt, shipment, adjustment]\n        quantity:\n          type: integer\n        note:\n          type: string\n        idempotencyKey:\n          type: string\n        resultingStock:\n          type: integer\n          minimum: 0\n          description: The product's total stock across all warehouses after this movement was applied.\n        createdAt:\n          type: string\n          format: date-time\n\n    LowStockItem:\n      type: object\n      required: [productId, sku, name, reorderThreshold, stock]\n      properties:\n        productId:\n          type: string\n          format: uuid\n        sku:\n          type: string\n        name:\n          type: string\n        reorderThreshold:\n          type: integer\n        stock:\n          type: integer\n# inventory-api-fixture\n\nA Bun runtime project. There is no framework and no separate database server:\nstorage is `bun:sqlite`, and the HTTP layer is `Bun.serve`.\n\n## Runtime contract\n\n- **Database.** `bun:sqlite` reads and writes the file named by the\n  `DATABASE_PATH` environment variable. No other datastore is permitted.\n- **Server.** `bun run start` starts an HTTP server listening on the port\n  named by the `PORT` environment variable, implementing every endpoint in\n  `openapi.yaml`.\n- **Migrations.** `bun run migrate` creates the schema described by\n  `openapi.yaml`'s data model. It must be safe to run more than once against\n  the same database file: running it twice in a row must succeed both times\n  with no error and no duplicated schema or data.\n- **Readiness.** `GET /health` returns `200` once the service is ready to\n  accept traffic. It exists only so the process can be health-checked by the\n  harness that runs this fixture; it is not part of the OpenAPI contract and\n  must not appear in `openapi.yaml`.\n\n## Contract\n\n`openapi.yaml` is the source of truth for every other endpoint: request and\nresponse shapes, status codes, and pagination. Every validation failure,\non every endpoint, returns the same fixed error shape documented there as\n`#/components/schemas/Error`.\n",
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    "aggregated_output": "{\n  \"name\": \"inventory-api-fixture\",\n  \"private\": true,\n  \"devDependencies\": {\n    \"typescript\": \"7.0.2\",\n    \"@types/bun\": \"1.4.1\"\n  }\n}\n{\n  \"compilerOptions\": {\n    \"target\": \"ESNext\",\n    \"module\": \"ESNext\",\n    \"moduleResolution\": \"bundler\",\n    \"lib\": [\"ESNext\"],\n    \"types\": [\"bun\"],\n    \"strict\": true,\n    \"noUncheckedIndexedAccess\": true,\n    \"noFallthroughCasesInSwitch\": true,\n    \"forceConsistentCasingInFileNames\": true,\n    \"skipLibCheck\": true,\n    \"esModuleInterop\": true,\n    \"resolveJsonModule\": true,\n    \"isolatedModules\": true,\n    \"allowJs\": false,\n    \"noEmit\": true\n  }\n}\n## main\n",
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    "text": "The contract is precise enough to proceed. I’m implementing a small dependency-free HTTP layer, an idempotent SQLite migration, strict object/query validation, and transactional movement application so the key check and stock update remain atomic."
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    "text": "TypeScript passes and the migration succeeds twice against the same database. I’m now exercising the live server, including negative stock, replayed keys, conflicting replays, pagination validation, updates, and low-stock totals."
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    "command": "/bin/zsh -lc 'set -e\nhealth=$(curl -sS -w '\"' %{http_code}' http://localhost:4175/health)\np=\"'$(curl -sS -X POST http://localhost:4175/products -H '\"'content-type: application/json' -d '{\\\"sku\\\":\\\"SKU_1\\\",\\\"name\\\":\\\"Widget\\\",\\\"reorderThreshold\\\":5}')\npid=\"'$(printf '\"'%s' \\\"\"'$p\" | bun -e '\"'let s=\\\"\\\";for await(const c of Bun.stdin.stream())s+=new TextDecoder().decode(c);console.log(JSON.parse(s).id)')\nw=\"'$(curl -sS -X POST http://localhost:4175/warehouses -H '\"'content-type: application/json' -d '{\\\"code\\\":\\\"WH-1\\\",\\\"name\\\":\\\"Main\\\"}')\nwid=\"'$(printf '\"'%s' \\\"\"'$w\" | bun -e '\"'let s=\\\"\\\";for await(const c of Bun.stdin.stream())s+=new TextDecoder().decode(c);console.log(JSON.parse(s).id)')\nreceipt=\"'$(curl -sS -w '\"' %{http_code}' -X POST http://localhost:4175/stock-movements -H 'content-type: application/json' -H 'Idempotency-Key: receive-1' -d \\\"{\\\\\\\"productId\\\\\\\":\\\\\\\"\"'$pid'\"\\\\\\\",\\\\\\\"warehouseId\\\\\\\":\\\\\\\"\"'$wid'\"\\\\\\\",\\\\\\\"type\\\\\\\":\\\\\\\"receipt\\\\\\\",\\\\\\\"quantity\\\\\\\":3}\\\")\nreplay=\"'$(curl -sS -w '\"' %{http_code}' -X POST http://localhost:4175/stock-movements -H 'content-type: application/json' -H 'Idempotency-Key: receive-1' -d \\\"{\\\\\\\"productId\\\\\\\":\\\\\\\"\"'$pid'\"\\\\\\\",\\\\\\\"warehouseId\\\\\\\":\\\\\\\"\"'$wid'\"\\\\\\\",\\\\\\\"type\\\\\\\":\\\\\\\"receipt\\\\\\\",\\\\\\\"quantity\\\\\\\":3}\\\")\nconflict=\"'$(curl -sS -w '\"' %{http_code}' -X POST http://localhost:4175/stock-movements -H 'content-type: application/json' -H 'Idempotency-Key: receive-1' -d \\\"{\\\\\\\"productId\\\\\\\":\\\\\\\"\"'$pid'\"\\\\\\\",\\\\\\\"warehouseId\\\\\\\":\\\\\\\"\"'$wid'\"\\\\\\\",\\\\\\\"type\\\\\\\":\\\\\\\"receipt\\\\\\\",\\\\\\\"quantity\\\\\\\":4}\\\")\nnegative=\"'$(curl -sS -w '\"' %{http_code}' -X POST http://localhost:4175/stock-movements -H 'content-type: application/json' -H 'Idempotency-Key: ship-1' -d \\\"{\\\\\\\"productId\\\\\\\":\\\\\\\"\"'$pid'\"\\\\\\\",\\\\\\\"warehouseId\\\\\\\":\\\\\\\"\"'$wid'\"\\\\\\\",\\\\\\\"type\\\\\\\":\\\\\\\"shipment\\\\\\\",\\\\\\\"quantity\\\\\\\":4}\\\")\nlow=\"'$(curl -sS http://localhost:4175/reports/low-stock)\nbad=$(curl -sS -w '\"' %{http_code}' 'http://localhost:4175/products?page=0')\nupdated=\"'$(curl -sS -X PATCH \"http://localhost:4175/products/$pid\" -H '\"'content-type: application/json' -d '{\\\"name\\\":\\\"Widget 2\\\",\\\"reorderThreshold\\\":2}')\nprintf 'health=%s\\\\nproduct=%s\\\\nwarehouse=%s\\\\nreceipt=%s\\\\nreplay=%s\\\\nconflict=%s\\\\nnegative=%s\\\\nlow=%s\\\\nbad=%s\\\\nupdated=%s\\\\n' \\\"\"'$health\" \"$p\" \"$w\" \"$receipt\" \"$replay\" \"$conflict\" \"$negative\" \"$low\" \"$bad\" \"$updated\"'",
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    "id": "item_9",
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    "command": "/bin/zsh -lc 'set -e\nhealth=$(curl -sS -w '\"' %{http_code}' http://localhost:4175/health)\np=\"'$(curl -sS -X POST http://localhost:4175/products -H '\"'content-type: application/json' -d '{\\\"sku\\\":\\\"SKU_1\\\",\\\"name\\\":\\\"Widget\\\",\\\"reorderThreshold\\\":5}')\npid=\"'$(printf '\"'%s' \\\"\"'$p\" | bun -e '\"'let s=\\\"\\\";for await(const c of Bun.stdin.stream())s+=new TextDecoder().decode(c);console.log(JSON.parse(s).id)')\nw=\"'$(curl -sS -X POST http://localhost:4175/warehouses -H '\"'content-type: application/json' -d '{\\\"code\\\":\\\"WH-1\\\",\\\"name\\\":\\\"Main\\\"}')\nwid=\"'$(printf '\"'%s' \\\"\"'$w\" | bun -e '\"'let s=\\\"\\\";for await(const c of Bun.stdin.stream())s+=new TextDecoder().decode(c);console.log(JSON.parse(s).id)')\nreceipt=\"'$(curl -sS -w '\"' %{http_code}' -X POST http://localhost:4175/stock-movements -H 'content-type: application/json' -H 'Idempotency-Key: receive-1' -d \\\"{\\\\\\\"productId\\\\\\\":\\\\\\\"\"'$pid'\"\\\\\\\",\\\\\\\"warehouseId\\\\\\\":\\\\\\\"\"'$wid'\"\\\\\\\",\\\\\\\"type\\\\\\\":\\\\\\\"receipt\\\\\\\",\\\\\\\"quantity\\\\\\\":3}\\\")\nreplay=\"'$(curl -sS -w '\"' %{http_code}' -X POST http://localhost:4175/stock-movements -H 'content-type: application/json' -H 'Idempotency-Key: receive-1' -d \\\"{\\\\\\\"productId\\\\\\\":\\\\\\\"\"'$pid'\"\\\\\\\",\\\\\\\"warehouseId\\\\\\\":\\\\\\\"\"'$wid'\"\\\\\\\",\\\\\\\"type\\\\\\\":\\\\\\\"receipt\\\\\\\",\\\\\\\"quantity\\\\\\\":3}\\\")\nconflict=\"'$(curl -sS -w '\"' %{http_code}' -X POST http://localhost:4175/stock-movements -H 'content-type: application/json' -H 'Idempotency-Key: receive-1' -d \\\"{\\\\\\\"productId\\\\\\\":\\\\\\\"\"'$pid'\"\\\\\\\",\\\\\\\"warehouseId\\\\\\\":\\\\\\\"\"'$wid'\"\\\\\\\",\\\\\\\"type\\\\\\\":\\\\\\\"receipt\\\\\\\",\\\\\\\"quantity\\\\\\\":4}\\\")\nnegative=\"'$(curl -sS -w '\"' %{http_code}' -X POST http://localhost:4175/stock-movements -H 'content-type: application/json' -H 'Idempotency-Key: ship-1' -d \\\"{\\\\\\\"productId\\\\\\\":\\\\\\\"\"'$pid'\"\\\\\\\",\\\\\\\"warehouseId\\\\\\\":\\\\\\\"\"'$wid'\"\\\\\\\",\\\\\\\"type\\\\\\\":\\\\\\\"shipment\\\\\\\",\\\\\\\"quantity\\\\\\\":4}\\\")\nlow=\"'$(curl -sS http://localhost:4175/reports/low-stock)\nbad=$(curl -sS -w '\"' %{http_code}' 'http://localhost:4175/products?page=0')\nupdated=\"'$(curl -sS -X PATCH \"http://localhost:4175/products/$pid\" -H '\"'content-type: application/json' -d '{\\\"name\\\":\\\"Widget 2\\\",\\\"reorderThreshold\\\":2}')\nprintf 'health=%s\\\\nproduct=%s\\\\nwarehouse=%s\\\\nreceipt=%s\\\\nreplay=%s\\\\nconflict=%s\\\\nnegative=%s\\\\nlow=%s\\\\nbad=%s\\\\nupdated=%s\\\\n' \\\"\"'$health\" \"$p\" \"$w\" \"$receipt\" \"$replay\" \"$conflict\" \"$negative\" \"$low\" \"$bad\" \"$updated\"'",
    "aggregated_output": "health={\"status\":\"ok\"} 200\nproduct={\"id\":\"1c4bdb1f-5113-402b-8b51-63e9d60bcf21\",\"sku\":\"SKU_1\",\"name\":\"Widget\",\"reorderThreshold\":5,\"stock\":0,\"createdAt\":\"2026-09-06T09:34:38.917Z\",\"updatedAt\":\"2026-09-06T09:34:38.917Z\"}\nwarehouse={\"id\":\"43786716-dac8-4d90-8338-434b3094048d\",\"code\":\"WH-1\",\"name\":\"Main\",\"createdAt\":\"2026-09-06T09:34:38.938Z\"}\nreceipt={\"id\":\"4e3b5365-e78d-4dc4-abeb-1ad21801f5f7\",\"productId\":\"1c4bdb1f-5113-402b-8b51-63e9d60bcf21\",\"warehouseId\":\"43786716-dac8-4d90-8338-434b3094048d\",\"type\":\"receipt\",\"quantity\":3,\"idempotencyKey\":\"receive-1\",\"resultingStock\":3,\"createdAt\":\"2026-09-06T09:34:38.957Z\"} 201\nreplay={\"id\":\"4e3b5365-e78d-4dc4-abeb-1ad21801f5f7\",\"productId\":\"1c4bdb1f-5113-402b-8b51-63e9d60bcf21\",\"warehouseId\":\"43786716-dac8-4d90-8338-434b3094048d\",\"type\":\"receipt\",\"quantity\":3,\"idempotencyKey\":\"receive-1\",\"resultingStock\":3,\"createdAt\":\"2026-09-06T09:34:38.957Z\"} 201\nconflict={\"error\":{\"code\":\"conflict\",\"message\":\"Idempotency-Key was reused with a different request body\"}} 409\nnegative={\"error\":{\"code\":\"conflict\",\"message\":\"Movement would take stock below zero\"}} 409\nlow={\"data\":[{\"productId\":\"1c4bdb1f-5113-402b-8b51-63e9d60bcf21\",\"sku\":\"SKU_1\",\"name\":\"Widget\",\"reorderThreshold\":5,\"stock\":3}],\"pagination\":{\"page\":1,\"pageSize\":20,\"total\":1,\"totalPages\":1}}\nbad={\"error\":{\"code\":\"validation_error\",\"message\":\"Invalid pagination parameters\",\"details\":[{\"field\":\"page\",\"issue\":\"must be an integer greater than or equal to 1\"}]}} 400\nupdated={\"id\":\"1c4bdb1f-5113-402b-8b51-63e9d60bcf21\",\"sku\":\"SKU_1\",\"name\":\"Widget 2\",\"reorderThreshold\":2,\"stock\":3,\"createdAt\":\"2026-09-06T09:34:38.917Z\",\"updatedAt\":\"2026-09-06T09:34:39.020Z\"}\n",
    "exit_code": 0,
    "status": "completed"
  }
}
{
  "type": "item.completed",
  "item": {
    "id": "item_8",
    "type": "command_execution",
    "command": "/bin/zsh -lc 'fixture_db=$(mktemp /tmp/inventory-live.XXXXXX.sqlite); echo \"$fixture_db\" > /tmp/inventory-live-path; DATABASE_PATH=\"$fixture_db\" PORT=4175 bun run start'",
    "aggregated_output": "^C",
    "exit_code": 1,
    "status": "failed"
  }
}
{
  "type": "item.started",
  "item": {
    "id": "item_10",
    "type": "file_change",
    "changes": [
      {
        "path": "/Users/decod3rslabs/www/shipshitdev/public/benchmark/.runs/v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1/workspace/src/server.ts",
        "kind": "update"
      }
    ],
    "status": "in_progress"
  }
}
{
  "type": "item.completed",
  "item": {
    "id": "item_10",
    "type": "file_change",
    "changes": [
      {
        "path": "/Users/decod3rslabs/www/shipshitdev/public/benchmark/.runs/v2026.09-smoke__backend--inventory-api__codex--gpt-5.6-sol--low__1/workspace/src/server.ts",
        "kind": "update"
      }
    ],
    "status": "completed"
  }
}
{
  "type": "item.started",
  "item": {
    "id": "item_11",
    "type": "command_execution",
    "command": "/bin/zsh -lc 'bun run typecheck && git diff --check && git status --short && git diff --stat'",
    "aggregated_output": "",
    "exit_code": null,
    "status": "in_progress"
  }
}
{
  "type": "item.completed",
  "item": {
    "id": "item_11",
    "type": "command_execution",
    "command": "/bin/zsh -lc 'bun run typecheck && git diff --check && git status --short && git diff --stat'",
    "aggregated_output": " M package.json\n?? src/\n package.json | 5 +++++\n 1 file changed, 5 insertions(+)\n",
    "exit_code": 0,
    "status": "completed"
  }
}
{
  "type": "item.completed",
  "item": {
    "id": "item_12",
    "type": "agent_message",
    "text": "Implemented the complete Bun inventory service:\n\n- SQLite schema and repeat-safe migrations using `bun:sqlite`\n- Product create, list, fetch, and update endpoints\n- Warehouse create and list endpoints\n- Transactional stock movements with idempotency protection\n- Negative-stock prevention\n- Paginated low-stock reporting\n- Strict request, UUID, header, and pagination validation\n- Consistent OpenAPI error responses\n- Parameterized SQL throughout\n- `GET /health` readiness endpoint\n- Added `migrate`, `start`, and `typecheck` scripts\n\nVerified:\n\n- TypeScript typecheck passes\n- Migration runs twice safely against the same database\n- Live endpoint smoke tests pass\n- Idempotent replay returns the original movement without changing stock\n- Conflicting replay and negative stock return `409`\n- Invalid pagination returns the required validation error shape"
  }
}
{
  "type": "turn.completed",
  "usage": {
    "input_tokens": 315699,
    "cached_input_tokens": 290432,
    "cache_write_input_tokens": 0,
    "output_tokens": 8075,
    "reasoning_output_tokens": 528
  }
}

Notes

  • codex: no turn cap flag; enforced only by the timebox