$ npm install -g @prefab-cloud/prefab
$ prefab COMMAND
running command...
$ prefab (--version)
@prefab-cloud/prefab/0.5.3 linux-x64 node-v24.12.0
$ prefab --help [COMMAND]
USAGE
  $ prefab COMMAND
...

Commands

`prefab create NAME`

Create a new item in Prefab

USAGE
  $ prefab create NAME --api-key <value> --type boolean-flag|boolean|string|double|int|string-list|json
    [--json] [--interactive] [--no-color] [--verbose] [--confidential] [--env-var <value>] [--value <value>] [--secret]
    [--secret-key-name <value>]

ARGUMENTS
  NAME  name for your new item (e.g. my.new.flag)

FLAGS
  --confidential             mark the value as confidential
  --env-var=<value>          environment variable to get value from
  --secret                   encrypt the value of this item
  --secret-key-name=<value>  [default: prefab.secrets.encryption.key] name of the secret key to use for
                             encryption/decryption
  --type=<option>            (required)
                             <options: boolean-flag|boolean|string|double|int|string-list|json>
  --value=<value>            default value for your new item

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Create a new item in Prefab

EXAMPLES
  $ prefab create my.new.flag --type boolean-flag

  $ prefab create my.new.flag --type boolean-flag --value=true

  $ prefab create my.new.string --type string --value="hello world"

  $ prefab create my.new.string --type string --value="hello world" --secret

  $ prefab create my.new.string --type string --env-var=MY_ENV_VAR_NAME

  $ prefab create my.new.string --type json --value="{\"key\": \"value\"}"

See code: src/commands/create.ts

`prefab download`

Download a Datafile for a given environment

USAGE
  $ prefab download --api-key <value> [--json] [--interactive] [--no-color] [--verbose] [--environment <value>]

FLAGS
  --environment=<value>  environment to download

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Download a Datafile for a given environment

  You can serve a datafile using the `serve` command.

EXAMPLES
  $ prefab download --environment=test

See code: src/commands/download.ts

`prefab gen`

Generate type definitions for your Prefab configuration

USAGE
  $ prefab gen --api-key <value> [--json] [--interactive] [--no-color] [--verbose] [--output-dir <value>]
    [--target node-ts|react-ts|python-pydantic|ruby]

FLAGS
  --output-dir=<value>  [default: generated-sources] output directory for generated code
  --target=<option>     [default: node-ts] language/framework to generate code for
                        <options: node-ts|react-ts|python-pydantic|ruby>

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Generate type definitions for your Prefab configuration

ALIASES
  $ prefab gen

EXAMPLES
  $ prefab gen --target node-ts

  $ prefab gen --target react-ts --output-dir custom/path

  $ prefab gen --target python

`prefab generate`

Generate type definitions for your Prefab configuration

USAGE
  $ prefab generate --api-key <value> [--json] [--interactive] [--no-color] [--verbose] [--output-dir <value>]
    [--target node-ts|react-ts|python-pydantic|ruby]

FLAGS
  --output-dir=<value>  [default: generated-sources] output directory for generated code
  --target=<option>     [default: node-ts] language/framework to generate code for
                        <options: node-ts|react-ts|python-pydantic|ruby>

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Generate type definitions for your Prefab configuration

ALIASES
  $ prefab gen

EXAMPLES
  $ prefab generate --target node-ts

  $ prefab generate --target react-ts --output-dir custom/path

  $ prefab generate --target python

See code: src/commands/generate.ts

`prefab generate-new-hex-key`

Generate a new hex key suitable for secrets

USAGE
  $ prefab generate-new-hex-key [--json] [--interactive] [--no-color] [--verbose]

GLOBAL FLAGS
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Generate a new hex key suitable for secrets

EXAMPLES
  $ prefab generate-new-hex-key

See code: src/commands/generate-new-hex-key.ts

`prefab get [NAME]`

Get the value of a config/feature-flag/etc.

USAGE
  $ prefab get [NAME] --api-key <value> [--json] [--interactive] [--no-color] [--verbose]

ARGUMENTS
  NAME  config/feature-flag/etc. name

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Get the value of a config/feature-flag/etc.

EXAMPLES
  $ prefab get my.config.name

See code: src/commands/get.ts

`prefab info [NAME]`

Show details about the provided config/feature-flag/etc.

USAGE
  $ prefab info [NAME] --api-key <value> [--json] [--interactive] [--no-color] [--verbose]
    [--exclude-evaluations]

ARGUMENTS
  NAME  config/feature-flag/etc. name

FLAGS
  --exclude-evaluations  Exclude evaluation data

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Show details about the provided config/feature-flag/etc.

EXAMPLES
  $ prefab info my.config.name

See code: src/commands/info.ts

`prefab interactive`

USAGE
  $ prefab interactive [--json] [--interactive] [--no-color] [--verbose]

GLOBAL FLAGS
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

EXAMPLES
  $ prefab

See code: src/commands/interactive.ts

`prefab list`

Show keys for your config/feature flags/etc.

USAGE
  $ prefab list --api-key <value> [--json] [--interactive] [--no-color] [--verbose] [--configs]
    [--feature-flags] [--log-levels] [--segments]

FLAGS
  --configs        include configs
  --feature-flags  include flags
  --log-levels     include log levels
  --segments       include segments

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Show keys for your config/feature flags/etc.

  All types are returned by default. If you pass one or more type flags (e.g. --configs), only those types will be
  returned

EXAMPLES
  $ prefab list

  $ prefab list --feature-flags

See code: src/commands/list.ts

`prefab override [NAME]`

Override the value of an item for your user/API key combo

USAGE
  $ prefab override [NAME] --api-key <value> [--json] [--interactive] [--no-color] [--verbose] [--remove]
    [--value <value>]

ARGUMENTS
  NAME  config/feature-flag/etc. name

FLAGS
  --remove         remove your override (if present)
  --value=<value>  value to use for your override

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Override the value of an item for your user/API key combo

EXAMPLES
  $ prefab override # will prompt for name and value

  $ prefab override my.flag.name --value=true

  $ prefab override my.flag.name --remove

  $ prefab override my.double.config --value=3.14159

See code: src/commands/override.ts

`prefab schema NAME`

Manage schemas for Prefab configs

USAGE
  $ prefab schema NAME --api-key <value> [--json] [--interactive] [--no-color] [--verbose] [--get]
    [--set-zod <value>]

ARGUMENTS
  NAME  name of the schema

FLAGS
  --get              get the schema definition
  --set-zod=<value>  set a Zod schema definition

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Manage schemas for Prefab configs

EXAMPLES
  $ prefab schema my-schema --set-zod="z.object({url: z.string()})"

  $ prefab schema my-schema --get

See code: src/commands/schema.ts

`prefab serve DATA-FILE`

Serve a datafile on a local port

USAGE
  $ prefab serve DATA-FILE [--json] [--interactive] [--no-color] [--verbose] [--port <value>]

ARGUMENTS
  DATA-FILE  file to read

FLAGS
  --port=<value>  [default: 3099] port to serve on

GLOBAL FLAGS
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Serve a datafile on a local port

  You can download a datafile using the `download` command.

  You'll need to update your JavaScript (or React) client to point to this server.

  e.g. `endpoints: ["http://localhost:3099"],`


EXAMPLES
  $ prefab serve ./prefab.test.588.config.json --port=3099

See code: src/commands/serve.ts

`prefab set-default [NAME]`

Set/update the default value for an environment (other rules still apply)

USAGE
  $ prefab set-default [NAME] --api-key <value> [--json] [--interactive] [--no-color] [--verbose]
    [--confidential] [--env-var <value>] [--environment <value>] [--value <value>] [--confirm] [--secret]
    [--secret-key-name <value>]

ARGUMENTS
  NAME  config/feature-flag/etc. name

FLAGS
  --confidential             mark the value as confidential
  --confirm                  confirm without prompt
  --env-var=<value>          environment variable to use as default value
  --environment=<value>      environment to change (specify "[default]" for the default environment)
  --secret                   encrypt the value of this item
  --secret-key-name=<value>  [default: prefab.secrets.encryption.key] name of the secret key to use for
                             encryption/decryption
  --value=<value>            new default value

GLOBAL FLAGS
  --api-key=<value>   (required) Prefab API KEY (defaults to ENV var PREFAB_API_KEY)
  --[no-]interactive  Force interactive mode
  --json              Format output as json.
  --no-color          Do not colorize output
  --verbose           Verbose output

DESCRIPTION
  Set/update the default value for an environment (other rules still apply)

EXAMPLES
  $ prefab set-default my.flag.name # will prompt for value and env

  $ prefab set-default my.flag.name --value=true --environment=staging

  $ prefab set-default my.flag.name --value=true --secret

  $ prefab set-default my.config.name --env-var=MY_ENV_VAR_NAME --environment=production

See code: src/commands/set-default.ts

Local Development

mise install
git submodule init
git submodule update
yarn install
yarn build
bin/dev.js
fish -c "cd ../../prefab-cloud/prefab-cli;bin/dev.js"

Releasing

yarn version
npm publish --access public

Keywords

oclif

FAQs

What is @prefab-cloud/prefab?

Is @prefab-cloud/prefab well maintained?

Package last updated on 05 Jan 2026

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Install

@prefab-cloud/prefab

Prefab CLI

Usage

Commands

prefab create NAME

prefab download

prefab gen

prefab generate

prefab generate-new-hex-key

prefab get [NAME]

prefab info [NAME]

prefab interactive

prefab list

prefab override [NAME]

prefab schema NAME

prefab serve DATA-FILE

prefab set-default [NAME]