---
# @generated by sylphx-gen 0.1.0 from contracts@e145cc7cf1bc9605f2b27439e5e17ed76a1a2fd7e7021906a013f7565e4a0cd5. Do not edit.
title: "sylphx config config_flags"
description: "The sylphx config config_flags commands of Sylphx Config: every verb, with its argument, its flags and a run line."
type: reference
product: flags
summary: "Every sylphx config config_flags command: its argument, its flags and a run line."
updated: 2026-09-28
nav: false
---

The `config_flags` commands of Sylphx Config, as the CLI spells them: the same
calls as [the `config_flags` API page](/docs/api/config_flags), typed for the
shell. [Install, sign in and the grammar](/docs/cli) are on the CLI index.

## get

Gets a config flag.

**`NAME`** — the resource's name; a bare id is enough below the linked
project.

**CLI**

```bash
sylphx config config-flags get orgs/acme/projects/shop/envs/production/config_flags/config-flag
```

`GET https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/config_flags/config-flag` · scope `config:read` · effect `read` · [Request, response and examples](/docs/api/config_flags/get)

## list

Lists config flags in an environment.

**`PARENT`** — optional: the CLI fills it from the linked project or the
key's scope when it is left out.

**CLI**

```bash
sylphx config config-flags list orgs/acme/projects/shop/envs/production
```

`GET https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/config_flags` · scope `config:read` · effect `read` · [Request, response and examples](/docs/api/config_flags/list)

**Flags**

| Flag | Type | What it does |
| --- | --- | --- |
| `--page-size` | `int` | At most this many; default 50, clamped to 1000. |
| `--page-token` | `string` | `next_page_token` of the previous page. |
| `--filter` | `string` | AIP-160 filter over labels and filterable fields. |
| `--order-by` | `string` | AIP-132 ordering over filterable fields. |

## create

Creates a config flag; the Operation is done when every cell serves it.

**`ID`** — The id segment of the new Resource's name; the server assigns one when omitted.

**CLI**

```bash
sylphx config config-flags create --parent orgs/acme/projects/shop/envs/production --spec.value-type bool
```

`POST https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/config_flags` · scope `config:write` · effect `write` · [Request, response and examples](/docs/api/config_flags/create)

**Flags**

| Flag | Type | What it does |
| --- | --- | --- |
| `--parent` | `string` | The parent to create in; defaults to the linked project or the key's scope. |
| `--meta.labels` | `key=value` | Caller-writable, indexed labels (AIP-122 label rules). Repeat the flag for each value. |
| `--meta.annotations` | `key=value` | Caller-writable, unindexed annotations. Repeat the flag for each value. |
| `--meta.display-name` | `string` | Caller-writable human-readable name. |
| `--spec.value-type` | `enum` | The type every value of the flag has. Required. One of `bool`, `string`, `int64`, `double`, `json`. |
| `--spec.default-value` | `json` | The value when no rule matches, or when the flag is disabled. Required. |
| `--spec.enabled` | `bool` | When false, every evaluation returns `default_value` and the rules are skipped: a kill switch. Default true. |
| `--spec.rules` | `json` | Targeting rules, first match wins. Repeat the flag for each value. |
| `--spec.description` | `string` | What the flag is for. |
| `--spec.client-visible` | `bool` | Publishable keys (browsers, mobile apps) may evaluate it with `config_flags:evaluate`; default false, so a server-only flag's value never reaches a device. Secret keys evaluate every flag. |
| `--dry-run` | `bool` | Validate and print the result without writing (validate_only). |
| `--no-wait` | `bool` | Return the call at once instead of waiting for it to finish. |

## update

Updates a config flag; the change rolls out in waves and the Operation is done when every cell serves it.

**`NAME`** — the resource's name; a bare id is enough below the linked
project.

**CLI**

```bash
sylphx config config-flags update orgs/acme/projects/shop/envs/production/config_flags/config-flag
```

`PATCH https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/config_flags/config-flag` · scope `config:write` · effect `write` · [Request, response and examples](/docs/api/config_flags/update)

**Flags**

| Flag | Type | What it does |
| --- | --- | --- |
| `--meta.labels` | `key=value` | Caller-writable, indexed labels (AIP-122 label rules). Repeat the flag for each value. |
| `--meta.annotations` | `key=value` | Caller-writable, unindexed annotations. Repeat the flag for each value. |
| `--meta.display-name` | `string` | Caller-writable human-readable name. |
| `--spec.default-value` | `json` | The value when no rule matches, or when the flag is disabled. Required. |
| `--spec.enabled` | `bool` | When false, every evaluation returns `default_value` and the rules are skipped: a kill switch. Default true. |
| `--spec.rules` | `json` | Targeting rules, first match wins. Repeat the flag for each value. |
| `--spec.description` | `string` | What the flag is for. |
| `--spec.client-visible` | `bool` | Publishable keys (browsers, mobile apps) may evaluate it with `config_flags:evaluate`; default false, so a server-only flag's value never reaches a device. Secret keys evaluate every flag. |
| `--dry-run` | `bool` | Validate and print the result without writing (validate_only). |
| `--no-wait` | `bool` | Return the call at once instead of waiting for it to finish. |

## delete

Deletes a config flag; evaluators then get their compiled-in fallback.

**`NAME`** — the resource's name; a bare id is enough below the linked
project.

**CLI**

```bash
sylphx config config-flags delete orgs/acme/projects/shop/envs/production/config_flags/config-flag --yes
```

`DELETE https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/config_flags/config-flag` · scope `config:write` · effect `destructive` · [Request, response and examples](/docs/api/config_flags/delete)

**Flags**

| Flag | Type | What it does |
| --- | --- | --- |
| `--etag` | `string` | Delete only if the current etag matches. |
| `--dry-run` | `bool` | Validate and print the result without writing (validate_only). |
| `--no-wait` | `bool` | Return the call at once instead of waiting for it to finish. |
| `--yes` | `bool` | Do not ask before this destructive call. |

## evaluate

Evaluates config flags of an environment for one evaluation context: each flag's value, and why. Browsers and mobile apps call it with a publishable key holding `config:evaluate`, which reads values, never rules.

**`NAME`** — the resource's name; a bare id is enough below the linked
project.

**CLI**

```bash
sylphx config config-flags evaluate orgs/acme/projects/shop/envs/production
```

`POST https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/config_flags:evaluate` · scope `config:evaluate` · effect `read` · [Request, response and examples](/docs/api/config_flags/evaluate)

**Flags**

| Flag | Type | What it does |
| --- | --- | --- |
| `--context` | `json` | Who and what the evaluation is for. |
| `--config-flags` | `string` | The ids of the flags to evaluate; empty evaluates every flag of the environment. An unknown id answers reason NOT_FOUND. Repeat the flag for each value. |

## snapshot

The environment's flags and segments in one read, for SDKs that evaluate locally. Poll it with `if_none_match` set to the last `etag`: an unchanged ruleset answers `not_modified` and nothing else.

**`NAME`** — the resource's name; a bare id is enough below the linked
project.

**CLI**

```bash
sylphx config config-flags snapshot orgs/acme/projects/shop/envs/production
```

`GET https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/config_flags:snapshot` · scope `config:read` · effect `read` · [Request, response and examples](/docs/api/config_flags/snapshot)

**Flags**

| Flag | Type | What it does |
| --- | --- | --- |
| `--if-none-match` | `string` | The `etag` of the snapshot the caller holds; unchanged answers `not_modified`. |