LaunchGuard v1.0.0 Documentation
LaunchGuard is a read-only pre-launch diagnostic plugin for Paper servers.
Current stable release: v1.0.0
Previous marketplace stable release: v0.5.0
LaunchGuard helps server owners check launch-readiness before opening a server to players. It focuses on configured checks, reports, exports, configuration validation, plugin visibility, and baseline drift detection.
LaunchGuard does not fully test plugin behavior and does not verify plugin runtime correctness.
Installation
/launchguard version
/launchguard validate
/launchguard run
Recommended first check:
/launchguard validate
Basic Usage
Run a pre-launch check:
/launchguard run
View the latest saved report:
/launchguard history latest
Export the current check:
/launchguard export json
/launchguard export html
Validate configuration files:
/launchguard validate
Main Commands
/launchguard help
/launchguard version
/launchguard run
/launchguard reload
/launchguard plugins
/launchguard plugins verbose
/launchguard plugins dependencies
/launchguard history
/launchguard history latest
/launchguard export json
/launchguard export html
/launchguard validate
Baseline Commands
Baselines let you save a known-good server state and compare future states against it.
/launchguard baseline save production
/launchguard baseline list
/launchguard baseline compare production
/launchguard baseline compare production save
/launchguard baseline export json production
/launchguard baseline export html production
/launchguard baseline history
/launchguard baseline history latest
/launchguard baseline delete production
Baseline names must use 1–32 characters and may contain only letters, numbers, underscores, and dashes. Do not use spaces, dots, slashes, file extensions, or path-like names.
Configuration
LaunchGuard uses local configuration files inside:
plugins/LaunchGuard/
Important settings include:
settings:
showPassedChecks: true
reportToConsole: true
runOnStartup: false
startupDelayTicks: 100
saveReports: true
reportsToKeep: 10
exportsToKeep: 25
baselineReportsToKeep: 25
compareBaselineOnStartup: false
startupBaselineName: "production"
startupBaselineSaveReport: true
startupBaselineDelayTicks: 120
After editing configuration files, run:
/launchguard validate
/launchguard reload
Optional Startup Baseline Compare
Startup baseline comparison is disabled by default.
To enable it:
settings:
compareBaselineOnStartup: true
startupBaselineName: "production"
startupBaselineSaveReport: true
startupBaselineDelayTicks: 120
When enabled, LaunchGuard waits for the configured delay, loads the selected baseline, compares the current server state, prints the result to console, and optionally saves a local text report.
Startup baseline comparison does not stop, restart, block, or modify the server.
Local File Locations
LaunchGuard writes only inside its own plugin folder.
plugins/LaunchGuard/reports/
plugins/LaunchGuard/exports/
plugins/LaunchGuard/baselines/
plugins/LaunchGuard/reports/baseline/
File types:
Permissions
launchguard.use
launchguard.run
launchguard.reload
launchguard.plugins
launchguard.history
launchguard.export
launchguard.validate
launchguard.baseline
launchguard.admin
launchguard.admin includes all LaunchGuard child permissions.
Compatibility
Fully smoke-tested:
Paper 1.20.1 through 1.20.6
Paper 1.21.1 through 1.21.10
Load-tested only:
Paper 1.21.11
Not available on PaperMC at QA time:
26.1
26.2
Not tested:
26.3
Paper 1.21.11 is load-tested only and is not claimed as fully smoke-tested.
Use the Java version required by your Paper server version.
Safety
LaunchGuard is read-only.
It does not:
LaunchGuard is a diagnostic and reporting tool. It is not a replacement for manual server testing.
LaunchGuard is a read-only pre-launch diagnostic plugin for Paper servers.
Current stable release: v1.0.0
Previous marketplace stable release: v0.5.0
LaunchGuard helps server owners check launch-readiness before opening a server to players. It focuses on configured checks, reports, exports, configuration validation, plugin visibility, and baseline drift detection.
LaunchGuard does not fully test plugin behavior and does not verify plugin runtime correctness.
Installation
- Download LaunchGuard-1.0.0.jar.
- Put the JAR file into your Paper server’s plugins/ folder.
- Restart the server.
- Run these commands:
Code (Text):
/launchguard version
/launchguard validate
/launchguard run
Code (Text):
/launchguard validate
Run a pre-launch check:
Code (Text):
/launchguard run
Code (Text):
/launchguard history latest
Code (Text):
/launchguard export json
/launchguard export html
Code (Text):
/launchguard validate
Code (Text):
/launchguard help
/launchguard version
/launchguard run
/launchguard reload
/launchguard plugins
/launchguard plugins verbose
/launchguard plugins dependencies
/launchguard history
/launchguard history latest
/launchguard export json
/launchguard export html
/launchguard validate
Baselines let you save a known-good server state and compare future states against it.
Code (Text):
/launchguard baseline save production
/launchguard baseline list
/launchguard baseline compare production
/launchguard baseline compare production save
/launchguard baseline export json production
/launchguard baseline export html production
/launchguard baseline history
/launchguard baseline history latest
/launchguard baseline delete production
Configuration
LaunchGuard uses local configuration files inside:
Code (Text):
plugins/LaunchGuard/
Code (Text):
settings:
showPassedChecks: true
reportToConsole: true
runOnStartup: false
startupDelayTicks: 100
saveReports: true
reportsToKeep: 10
exportsToKeep: 25
baselineReportsToKeep: 25
compareBaselineOnStartup: false
startupBaselineName: "production"
startupBaselineSaveReport: true
startupBaselineDelayTicks: 120
Code (Text):
/launchguard validate
/launchguard reload
Startup baseline comparison is disabled by default.
To enable it:
Code (Text):
settings:
compareBaselineOnStartup: true
startupBaselineName: "production"
startupBaselineSaveReport: true
startupBaselineDelayTicks: 120
Startup baseline comparison does not stop, restart, block, or modify the server.
Local File Locations
LaunchGuard writes only inside its own plugin folder.
Code (Text):
plugins/LaunchGuard/reports/
plugins/LaunchGuard/exports/
plugins/LaunchGuard/baselines/
plugins/LaunchGuard/reports/baseline/
[]Preflight reports: .txt
[]Exports: .json, .html
[]Baselines: .yml
[]Baseline reports: .txt
Permissions
Code (Text):
launchguard.use
launchguard.run
launchguard.reload
launchguard.plugins
launchguard.history
launchguard.export
launchguard.validate
launchguard.baseline
launchguard.admin
Compatibility
Fully smoke-tested:
Code (Text):
Paper 1.20.1 through 1.20.6
Paper 1.21.1 through 1.21.10
Code (Text):
Paper 1.21.11
Code (Text):
26.1
26.2
Code (Text):
26.3
Use the Java version required by your Paper server version.
Safety
LaunchGuard is read-only.
It does not:
[]execute configured commands
[]modify server state
[]send network calls
[]install plugins
[]download plugins
[]enable or disable plugins
[]reload other plugins
[]teleport players
[]modify blocks
[]modify worlds
[]modify economy data
[]modify permission data
[]change whitelist state
[]force-load chunks
[]stop the server
[]restart the server- block server startup
LaunchGuard is a diagnostic and reporting tool. It is not a replacement for manual server testing.
Resource Information
Author:
----------
Total Downloads: 18
First Release: Jun 13, 2026
Last Update: Jun 17, 2026
Category: ---------------
All-Time Rating:
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