---
title: "vakna receipt"
description: "What a box or a task cost, and what the platform did."
command: "vakna receipt"
generated: scripts/generate.ts
verified:
  cli: "0.0.0-mock"
  date: "2026-10-20"
---

`vakna receipt`: what a box or a task cost, and what the platform did. Proposed: the real CLI doesn't have this command yet.

## Synopsis

```sh
vakna receipt <box|task>
```

## Flags

| Flag | Default | What it does |
| -- | -- | -- |
| `--money <variant>` | `cost+counterfactual` | none, cost, cost+counterfactual, cost+savings |
| `--width <columns>` | `80` | the terminal width to lay out for |
| `--format <format>` | `text` | text, or json: one JSON object per line |
| `--json` | `off` | the same as --format json |
| `-h, --help` | `off` | this help |

## Examples

### Example

```sh
$ vakna receipt api
```

```prints
receipt
sbx_eu1a_8s9t0v1w                                                         mocked
────────────────────────────────────────────────────────────────────────────────
started in  0.34s · from snapshot
ran         pnpm test · exit 0                                            38.24s
wall clock                                                                41.30s
cost                                                                      $0.004
────────────────────────────────────────────────────────────────────────────────
without the snapshot: +8.11s of setup (8.45s per box, measured)
```

Exit code 0.

### Another example

```sh
$ vakna receipt prove-flaky-retry --money cost --format json
```

```prints
{"v":1,"event":"receipt","receipt":{"kind":"task","id":"tsk_eu1a_01JB7Y4D5E6F7G8H9J0K1M2N3P","name":"prove-flaky-retry","startedAt":"2026-10-17T11:20:00Z","endedAt":"2026-10-17T11:22:11Z","boxes":50,"coldBoots":1,"forks":49,"forkEachMs":341,"medianReadyMs":346,"wallClockMs":4700000,"elapsedMs":131000,"suspendedMs":0,"passed":42,"failures":[{"signature":"e3b0c442","label":"assertion in retry_test.go:88","count":6},{"signature":"9f86d081","label":"timeout after 30s","count":2}],"costMicros":456944,"trial":false,"mocked":true},"mocked":true}
```

Exit code 0.

### When it fails

```sh
$ vakna receipt api --money gold
```

```prints
vakna: unknown --money gold
hint: vakna receipt api --money none  # one of none, cost, cost+counterfactual, cost+savings
```

Exit code 2.

## Exit codes

| Code | Meaning |
| -- | -- |
| 0 | ok |
| 1 | vakna failed; under shell, run, try or fork, the command in the box failed |
| 2 | usage: a missing argument, an unknown flag or command |

## JSON output

With `--format json` (or `--json`) every line is one JSON object. `v` is the format's version; `mocked` marks numbers from the mock.

```sh
$ vakna receipt prove-flaky-retry --money cost --format json
```

```prints
{"v":1,"event":"receipt","receipt":{"kind":"task","id":"tsk_eu1a_01JB7Y4D5E6F7G8H9J0K1M2N3P","name":"prove-flaky-retry","startedAt":"2026-10-17T11:20:00Z","endedAt":"2026-10-17T11:22:11Z","boxes":50,"coldBoots":1,"forks":49,"forkEachMs":341,"medianReadyMs":346,"wallClockMs":4700000,"elapsedMs":131000,"suspendedMs":0,"passed":42,"failures":[{"signature":"e3b0c442","label":"assertion in retry_test.go:88","count":6},{"signature":"9f86d081","label":"timeout after 30s","count":2}],"costMicros":456944,"trial":false,"mocked":true},"mocked":true}
```

## Errors

- [`vakna: unknown command, unknown flag or missing argument`](https://vakna.com/docs/errors/usage): Run `vakna <command> --help` and fix the command line it points to.
- [`vakna: no box "<box>"`](https://vakna.com/docs/errors/not_found): Run `vakna list` and use a name from it.
- [`vakna: "<id>" matches more than one box`](https://vakna.com/docs/errors/ambiguous): Use the box's name or its full id; `vakna list` shows both.

## --help

This page and the help text come from one definition.

```prints
vakna receipt · what a box or a task cost, and what the platform did
Proposed: the real CLI doesn't have this command yet.

usage
  vakna receipt <box|task>

flags
  --money <variant>  none, cost, cost+counterfactual, cost+savings  (default: cost+counterfactual)
  --width <columns>  the terminal width to lay out for  (default: 80)
  --format <format>  text, or json: one JSON object per line  (default: text)
  --json             the same as --format json  (default: off)
  -h, --help         this help  (default: off)

examples
  vakna receipt api
  vakna receipt prove-flaky-retry --money cost --format json

exit codes
  0  ok
  1  vakna failed; under shell, run, try or fork, the command in the box failed
  2  usage: a missing argument, an unknown flag or command
```