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railway-environment Query, stage, and apply configuration changes for Railway environments. Use for ANY variable or env var operations, service configuration (source, build settings, deploy settings), lifecycle (delete service), and applying changes. Prefer over railway-status skill for any configuration or variable queries.
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name railway-environment description Query, stage, and apply configuration changes for Railway environments. Use for ANY variable or env var operations, service configuration (source, build settings, deploy settings), lifecycle (delete service), and applying changes. Prefer over railway-status skill for any configuration or variable queries. version 1.0.0 author Railway license MIT tags ["Railway","Environment","Configuration","Variables","Build","Deploy","Infrastructure","Settings"] dependencies ["railway-cli"] allowed-tools Bash(railway:*)
Environment Configuration
Query, stage, and apply configuration changes for Railway environments.
Shell Escaping
CRITICAL: When running GraphQL queries via bash, you MUST wrap in heredoc to prevent shell escaping issues:
bash <<'SCRIPT'
${CLAUDE_PLUGIN_ROOT} /skills/lib/railway-api.sh 'query ...' '{"var": "value"}'
SCRIPT
Without the heredoc wrapper, multi-line commands break and exclamation marks in GraphQL non-null types get escaped, causing query failures.
When to Use
User wants to create a new environment
User wants to duplicate an environment (e.g., "copy production to staging")
User wants to switch to a different environment
User asks about current build/deploy settings, variables, replicas, health checks, domains
User asks to change service source (Docker image, branch, commit, root directory)
User wants to connect a service to a GitHub repo
User wants to deploy from a GitHub repo (create empty service first via railway-new skill, then use this)
User asks to change build or start command
User wants to add/update/delete environment variables
User wants to change replica count or configure health checks
User asks to delete a service, volume, or bucket
User says "apply changes", "commit changes", "deploy changes"
Auto-fixing build errors detected in logs
Create Environment
Create a new environment in the linked project:
railway environment new <name>
Duplicate an existing environment:
railway environment new staging --duplicate production
With service-specific variables:
railway environment new staging --duplicate production --service-variable api PORT=3001
Switch Environment
Link a different environment to the current directory:
railway environment <name>
Or by ID:
railway environment <environment-id>
Get Context
railway status --json
Extract:
project.id - for service lookup
environment.id - for the mutations
service.id - default service if user doesn't specify one
Resolve Service ID If user specifies a service by name, query project services:
query projectServices( $projectId : String! ) {
project( id : $projectId ) {
services {
edges {
node {
id
name
}
}
}
}
}
Match the service name (case-insensitive) to get the service ID.
Query Configuration Fetch current environment configuration and staged changes.
query environmentConfig( $environmentId : String! ) {
environment( id : $environmentId ) {
id
config( decryptVariables : false )
serviceInstances {
edges {
node {
id
serviceId
}
}
}
}
environmentStagedChanges( environmentId : $environmentId ) {
id
patch( decryptVariables : false )
}
}
bash <<'SCRIPT'
${CLAUDE_PLUGIN_ROOT} /skills/lib/railway-api.sh \
'query envConfig($envId: String!) {
environment(id: $envId) { id config(decryptVariables: false) }
environmentStagedChanges(environmentId: $envId) { id patch(decryptVariables: false) }
}' \
'{"envId": "ENV_ID"}'
SCRIPT
Response Structure The config field contains current configuration:
{
"services" : {
"<serviceId>" : {
"source" : { "repo" : "..." , "branch" : "main" } ,
"build" : { "buildCommand" : "npm run build" , "builder" : "NIXPACKS" } ,
"deploy" : {
"startCommand" : "npm start" ,
"multiRegionConfig" : { "us-west2" : { "numReplicas" : 1 } }
} ,
"variables" : { "NODE_ENV" : { "value" : "production" } } ,
"networking" : { "serviceDomains" : { } , "customDomains" : { } }
}
} ,
"sharedVariables" : { "DATABASE_URL" : { "value" : "..." } }
}
The patch field in environmentStagedChanges contains pending changes. The effective configuration is the base config merged with the staged patch.
Get Rendered Variables The GraphQL queries above return unrendered variables - template syntax like ${{shared.DOMAIN}} is preserved. This is correct for management/editing.
To see rendered (resolved) values as they appear at runtime:
railway variables --json
railway variables --service <service-name> --json
Debugging connection issues (see actual URLs/ports)
Verifying variable resolution is correct
Viewing Railway-injected values (RAILWAY_*)
Stage Changes Stage configuration changes via the environmentStageChanges mutation. Use merge: true to automatically merge with existing staged changes.
mutation stageEnvironmentChanges(
$environmentId : String!
$input : EnvironmentConfig!
$merge : Boolean
) {
environmentStageChanges(
environmentId : $environmentId
input : $input
merge : $merge
) {
id
}
}
Important: Always use variables (not inline input) because service IDs are UUIDs which can't be used as unquoted GraphQL object keys.
bash <<'SCRIPT'
${CLAUDE_PLUGIN_ROOT} /skills/lib/railway-api.sh \
'mutation stageChanges($environmentId: String!, $input: EnvironmentConfig!, $merge: Boolean) {
environmentStageChanges(environmentId: $environmentId, input: $input, merge: $merge) { id }
}' \
'{"environmentId": "ENV_ID", "input": {"services": {"SERVICE_ID": {"build": {"buildCommand": "npm run build"}}}}, "merge": true}'
SCRIPT
Delete Service bash <<'SCRIPT'
${CLAUDE_PLUGIN_ROOT} /skills/lib/railway-api.sh \
'mutation stageChanges($environmentId: String!, $input: EnvironmentConfig!, $merge: Boolean) {
environmentStageChanges(environmentId: $environmentId, input: $input, merge: $merge) { id }
}' \
'{"environmentId": "ENV_ID", "input": {"services": {"SERVICE_ID": {"isDeleted": true}}}, "merge": true}'
SCRIPT
Stage and Apply Immediately For single changes that should deploy right away, use environmentPatchCommit to stage and apply in one call.
mutation environmentPatchCommit(
$environmentId : String!
$patch : EnvironmentConfig
$commitMessage : String
) {
environmentPatchCommit(
environmentId : $environmentId
patch : $patch
commitMessage : $commitMessage
)
}
bash <<'SCRIPT'
${CLAUDE_PLUGIN_ROOT} /skills/lib/railway-api.sh \
'mutation patchCommit($environmentId: String!, $patch: EnvironmentConfig, $commitMessage: String) {
environmentPatchCommit(environmentId: $environmentId, patch: $patch, commitMessage: $commitMessage)
}' \
'{"environmentId": "ENV_ID", "patch": {"services": {"SERVICE_ID": {"variables": {"API_KEY": {"value": "secret"}}}}}, "commitMessage": "add API_KEY"}'
SCRIPT
When to use: Single change, no need to batch, user wants immediate deployment.
When NOT to use: Multiple related changes to batch, or user says "stage only" / "don't deploy yet".
Apply Staged Changes Commit staged changes and trigger deployments.
Note: There is no railway apply CLI command. Use the mutation below or direct users to the web UI.
Apply Mutation Mutation name: environmentPatchCommitStaged
mutation environmentPatchCommitStaged(
$environmentId : String!
$message : String
$skipDeploys : Boolean
) {
environmentPatchCommitStaged(
environmentId : $environmentId
commitMessage : $message
skipDeploys : $skipDeploys
)
}
bash <<'SCRIPT'
${CLAUDE_PLUGIN_ROOT} /skills/lib/railway-api.sh \
'mutation commitStaged($environmentId: String!, $message: String) {
environmentPatchCommitStaged(environmentId: $environmentId, commitMessage: $message)
}' \
'{"environmentId": "ENV_ID", "message": "add API_KEY variable"}'
SCRIPT
Parameters Field Type Default Description environmentIdString! - Environment ID from status messageString null Short description of changes skipDeploysBoolean false Skip deploys (only if user explicitly asks)
Commit Message Keep very short - one sentence max. Examples:
"set build command to fix npm error"
"add API_KEY variable"
"increase replicas to 3"
Leave empty if no meaningful description.
Default Behavior Always deploy unless user explicitly asks to skip. Only set skipDeploys: true if user says "apply without deploying", "commit but don't deploy", or "skip deploys".
Returns a workflow ID (string) on success.
Auto-Apply Behavior By default, apply changes immediately .
Flow Single change: Use environmentPatchCommit to stage and apply in one call.
Multiple changes or batching: Use environmentStageChanges with merge: true for each change, then environmentPatchCommitStaged to apply.
When NOT to Auto-Apply
User explicitly says "stage only", "don't deploy yet", or similar
User is making multiple related changes that should deploy together
When you don't auto-apply, tell the user:
Get projectId from railway status --json → project.id
Error Handling
Service Not Found Service "foo" not found in project. Available services: api, web, worker
No Staged Changes There are no staged changes to commit. Stage changes first.
Invalid Configuration
buildCommand and startCommand cannot be identicalbuildCommand only valid with NIXPACKS builderdockerfilePath only valid with DOCKERFILE builder
No Permission You don't have permission to modify this environment. Check your Railway role.
No Linked Project No project linked. Run `railway link` to link a project.
Composability
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