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CoreProtect is a server-side activity logger for Minecraft. Install its plugin JAR, verify that it is recording events, then use the least-destructive commands first: inspect a location, run a narrowly scoped lookup, preview any rollback, and only then apply it. This workflow lets authorized moderators identify who changed a block and recover from griefing without treating a log as a substitute for a world backup.
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What CoreProtect does—and what it cannot do
CoreProtect records selected, supported Minecraft server activity so authorized staff can investigate what happened, where it happened, and which account was involved. It is commonly used as a data-logging and anti-griefing tool: a moderator can examine a damaged area, identify the responsible account, and reverse matching changes.
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It is not a universal replay system. Actions that are not supported by the plugin, actions performed by another plugin in a way CoreProtect cannot observe, corrupted database records, and data older than your retention period may not be recoverable. A rollback also does not create a backup. Keep independent world backups, manage permissions separately, and define moderation rules for when staff may investigate or alter a world.
Prepare the server before installation
Record the environment
Write down the exact Minecraft version, server software and build, Java runtime, and current plugin list. CoreProtect’s installation documentation covers Paper, Spigot, Purpur, Bukkit-compatible servers, and Folia, but compatibility is release-specific. Check the current release documentation for your exact server build instead of assuming that a file intended for one server version is suitable for another.
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Make recoverable backups
- Create a complete world backup before adding or upgrading the plugin.
- If CoreProtect uses an external database in your configuration, take a consistent database snapshot as well.
- Keep the pre-change backup untouched until installation and verification are complete.
- Record the backup time, server version, and plugin version so a later incident can be tied to a known state.
Perform the change through your normal administrative process. On a production server that usually means notifying players, stopping or restarting the server cleanly, and keeping a maintenance record.
Install CoreProtect and verify that it is logging
- Download the CoreProtect build that matches the server software and Minecraft version documented for that release.
- Stop or otherwise safely prepare the server according to your administration procedure, then copy the CoreProtect plugin JAR into the server’s
pluginsdirectory. - Start or restart the server normally and watch the startup log for plugin-load errors. Do not proceed if the server reports an incompatible Java runtime, a malformed JAR, or a dependency failure.
- In the server console or as an authorized in-game administrator, run
/co status. A successful response confirms that CoreProtect loaded and can report its status. - Toggle the inspector with
/co inspect. Make one harmless, deliberate block change in a test area, then inspect that location and run a short lookup to confirm that the new event appears. - Turn inspection off with
/co inspectagain when the test is finished. Leaving inspection enabled can make ordinary moderator actions confusing.
Use a real test change rather than relying only on a green startup message: loading the plugin and recording an event are separate checks. If the test event is absent, stop and troubleshoot before giving staff rollback access.
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Give each staff role only the commands needed for its job. The documented CoreProtect permissions are:
| Permission | Purpose | Typical role |
|---|---|---|
coreprotect.inspect |
Toggle location inspection | Junior moderator or investigator |
coreprotect.lookup |
Search logged activity | Moderator or investigator |
coreprotect.rollback |
Apply a rollback that changes the world | Trusted senior moderator |
coreprotect.restore |
Reapply changes after a rollback when history permits | Trusted senior moderator |
coreprotect.purge |
Delete old log data | Server administrator only |
coreprotect.reload |
Reload CoreProtect configuration | Server administrator |
coreprotect.status |
View plugin status | Administrator or support staff |
coreprotect.* |
All documented CoreProtect commands | Operator-level access only |
coreprotect.* grants every documented CoreProtect command and defaults to operator access. Avoid assigning it to a general moderator group: purge, rollback, restore, and reload can have server-wide consequences. Test the permission model with a non-operator account before an incident occurs.
Investigate a damaged area without changing it
Start with the inspector
Run /co inspect, then click or otherwise inspect the affected block. The inspector is useful when the question is local—who broke this chest, placed this block, or removed this door? It identifies matching logged actions without modifying the world. Toggle it off when finished.
Use the smallest useful lookup
For a wider search, use /co lookup. Begin with a short time window and a small radius, then widen one parameter at a time. A narrow query is easier to interpret and reduces the chance that an unrelated event is mistaken for the cause.
/co lookup u:Player t:1h r:20This example searches for activity by Player during the previous hour within a radius of 20 blocks. Replace the account name and adjust the window to match the incident.
Filter deliberately
CoreProtect documents these lookup filters:
| Filter | Meaning | Example |
|---|---|---|
u: |
User or account to include | u:Player |
t: |
Time range | t:1h |
r: |
Radius around the lookup location | r:20 |
a: |
Action type to include | a:break |
i: |
Material or action to include | i:stone |
e: |
Material or action to exclude | e:dirt |
Add an action or material filter only when it removes ambiguity. For example, if a player reports a missing chest, first search the player’s recent activity in the room; then add an action or material filter if the result set is too broad. Do not begin with a large radius, a long time period, and several speculative filters—you may hide the event you need or include too much unrelated activity.
Preview and apply a rollback safely
Rollback is the point at which an investigation becomes a world-changing operation. Preserve the exact user, time, radius, action, and material scope you identified during lookup.
Preview the scope
For the example incident, preview a 30-minute window around the affected area:
/co rollback u:Player t:30m r:15 #previewReview the returned count and the listed locations. Confirm that the account, time window, radius, dimension, and any action or material filters match the incident. A count that is unexpectedly large is a reason to narrow the query—not a reason to proceed and inspect the damage afterward.
Apply the exact approved scope
When the preview is correct, run the same command without #preview:
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/co rollback u:Player t:30m r:15Reuse the recorded command rather than reconstructing it from memory. If your moderation process requires a second approval for destructive actions, obtain it before executing the command.
Check the result
- Inspect representative blocks in the center and at the edges of the affected area.
- Check containers and adjacent builds for unintended changes.
- Review the server log for errors or warnings during the operation.
- Ask the affected player or moderator to verify the intended damage was reversed.
- Keep the pre-rollback backup untouched until the result is accepted.
A rollback is not a precision edit when the filters are broad: it can reverse every matching logged change in the selected scope, including legitimate work by the same account during that period. Previewing and post-operation checks are therefore part of the command, not optional extras.
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Use restore when the original history remains available
To reverse a corresponding rollback, run the same scope with /co restore:
/co restore u:Player t:30m r:15Restore can reapply the changes that a rollback removed when the required history is still present. It cannot recreate original data that was never logged, has been purged, or is otherwise unavailable. Use the exact recorded scope from the rollback; changing the time or radius can restore more or less than intended.
Use /co undo as the documented opposite-action alias
CoreProtect documents /co undo as an alias that reverts a rollback or restore through the opposite action. Treat it with the same care as the original operation: verify which operation is being reversed, preview where your workflow supports it, and check the affected area afterward.
If the required history is missing or the operation has a complicated scope, stop issuing commands and use the independent world backup. Database history is not a replacement for a known-good world snapshot.
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Control database growth with retention and purge
Logging indefinitely can create an unnecessarily large database. CoreProtect documents:
/co purge t:30dThis removes data older than 30 days according to the command documentation. The minimum permitted purge age differs between in-game and console execution, so check the release documentation before scheduling an automated cleanup. Do not choose a retention period solely because it makes the database smaller: match it to your server’s grief-report window, appeal policy, and backup schedule.
A safe purge procedure
- Record the retention decision and the exact command in the server change log.
- Back up the world and the relevant database before deleting records.
- Run the purge from the approved administrative context, observing the documented minimum age for that context.
- Run
/co statusand verify that the plugin remains available. - Test a recent lookup to confirm that current events are still being recorded.
Purge is irreversible for the deleted log records. If an investigation is open, retain the relevant data until the case and any appeal are closed.
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CoreProtect’s configuration documentation describes DuckDB and ClickHouse backends. Backend choice affects operational procedures, backups, and monitoring; it does not change the need for narrow lookups or independent world backups.
DuckDB
The documented DuckDB JDBC driver is downloaded automatically as a plugin library. Confirm that the server can write the plugin’s data location and that your backup system includes the resulting database files.
ClickHouse
The documented ClickHouse JDBC driver is packaged inside CoreProtect. If you use this backend, include the external database in your backup, access-control, upgrade, and monitoring plans. A world backup alone does not capture a separate database’s log history.
Per-world YAML settings
Per-world YAML files can change logging behavior. The configuration documentation gives disabling entity-death rollback logging in a particular Nether world as an example. Apply such a change only when you understand which evidence it removes: a setting that reduces noise or storage can also remove information needed for a later investigation.
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A practical moderator incident workflow
- Preserve evidence. Note the world, coordinates, approximate time, reporter, and visible damage. Do not immediately rebuild the area.
- Inspect locally. Toggle
/co inspectand check representative blocks or containers. - Lookup narrowly. Start with the smallest useful
t:andr:values; addu:,a:,i:, ore:only as needed. - Confirm responsibility. Distinguish the account that made the change from later legitimate repairs or automated activity.
- Preview recovery. Run the rollback with
#previewand review the count and locations. - Approve and apply. Execute the identical command without the preview marker after the required staff approval.
- Validate. Inspect the area, review logs, and record the result.
- Escalate when history is insufficient. Use the world backup or another recovery procedure instead of guessing at a broader rollback.
Troubleshoot common failures
/co status does not show a loaded plugin
- Confirm the JAR is in the server’s actual
pluginsdirectory, not a download or backup folder. - Check the startup log for an unsupported server build, Java problem, malformed file, or dependency error.
- Verify that the downloaded build is intended for your server software and Minecraft version.
- Restart through the normal process after correcting the issue, then run
/co statusagain.
The plugin loads but a test event is missing
- Make sure inspection was toggled off and that the test change occurred after the plugin loaded.
- Check that the test account has not been excluded by a configuration rule and that the lookup time and location are correct.
- Verify database write access and inspect the server log for storage errors.
- Test a fresh event before granting rollback permissions.
A lookup returns too many or too few results
Reduce the time window and radius first. Then add the user, action, included-material, or excluded-material filter that addresses the ambiguity. A result count of zero does not prove that no change occurred: the event may be outside the selected range, unsupported, purged, or recorded under a different account.
A rollback affected legitimate work
Stop further edits, preserve the exact rollback command, and use the corresponding restore or documented /co undo path only after confirming the scope. If the result cannot be safely reconstructed from remaining history, recover from the world backup rather than issuing increasingly broad commands.
Purge is rejected
Check whether the command was run in-game or from the console and compare the requested age with the documented minimum for that execution context. Do not work around the limit by deleting database files manually.
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Operational limits and policies worth documenting
- Define which staff may inspect, look up, roll back, restore, purge, or reload.
- Require a reason, affected coordinates, time range, and command scope for every destructive operation.
- Retain independent world backups on a schedule that fits the server’s recovery objectives.
- Set a log-retention period that supports investigations and appeals without retaining data indefinitely by accident.
- Review configuration changes per world, especially settings that disable classes of logging.
- Check current release compatibility before upgrading Minecraft, server software, Java, or CoreProtect.
CoreProtect command quick reference
| Goal | Command | Effect |
|---|---|---|
| Check plugin status | /co status |
Reports CoreProtect status |
| Toggle local inspection | /co inspect |
Shows logged activity at inspected locations |
| Search a player’s recent area activity | /co lookup u:Player t:1h r:20 |
Narrows results by user, time, and radius |
| Preview a recovery | /co rollback u:Player t:30m r:15 #preview |
Shows the proposed scope without applying it |
| Apply the reviewed rollback | /co rollback u:Player t:30m r:15 |
Reverses matching logged changes |
| Restore a corresponding rollback | /co restore u:Player t:30m r:15 |
Reapplies matching history when available |
| Remove old records | /co purge t:30d |
Deletes data older than 30 days, subject to execution-context limits |
| Reverse a rollback or restore | /co undo |
Uses the documented opposite action |
The Bottom Line
Use CoreProtect as an evidence and recovery layer: verify the installation, grant narrowly scoped permissions, investigate with small lookups, preview every rollback, and keep world backups for failures that logs cannot repair.
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