Package Skills
Manage installed Unity packages and package-related helper flows such as Cinemachine and Splines setup.
Guardrails
Mode: Full-Auto required
DO NOT (common hallucinations):
package_add/package_updatedo not exist -> usepackage_installpackage_get_infodoes not exist -> usepackage_list,package_check,package_get_dependencies, orpackage_get_versionspackage_searchsearches the installed package cache only; it does not query the Unity Registrypackage_list,package_search,package_get_dependencies, andpackage_get_versionscan return "Package list not ready" untilpackage_refreshcompletes- Package install/remove/refresh jobs can trigger package import and Domain Reload; expect transient server unavailability and use returned job IDs
Routing:
- For Cinemachine quick setup -> use
package_install_cinemachine - For Splines quick setup -> use
package_install_splines - For project manifest inspection -> use
project_get_packages - For define symbol changes after package installation -> use
debug_set_defines
Skills
package_list
List all installed packages currently cached by UnitySkills. Parameters: None.
Returns: {success, count, packages}
package_check
Check whether a package is installed.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
packageId | string | Yes | - | Package ID such as com.unity.cinemachine |
Returns: {packageId, installed, version}
package_install
Install a package. Returns an async job when the request is accepted.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
packageId | string | Yes | - | Package ID to install |
version | string | No | null | Optional explicit version |
Returns: {success, status, jobId, message, serverAvailability}
package_remove
Remove an installed package. Returns an async job when the request is accepted.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
packageId | string | Yes | - | Installed package ID to remove |
Returns: {success, status, jobId, message, serverAvailability}
package_refresh
Refresh the installed package cache used by query skills. Parameters: None.
Returns: {success, status, jobId, message}
package_install_cinemachine
Install Cinemachine using the supported package/version strategy.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
version | int | No | 3 | 2 for CM2, 3 for CM3 |
Notes:
- CM3 auto-installs the Splines dependency.
- If the requested line is already installed, this skill can return immediate success instead of a job.
Returns: {success, status?, jobId?, message, serverAvailability?}
package_install_splines
Install or upgrade Unity Splines using the recommended version for the current Unity editor line. Parameters: None.
Returns: {success, status?, jobId?, message, serverAvailability?}
package_get_cinemachine_status
Get current Cinemachine and Splines installation status. Parameters: None.
Returns: {cinemachine, splines}
package_search
Search the installed package cache by package name or display name.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
query | string | Yes | - | Search keyword |
Returns: {success, query, count, packages}
package_get_dependencies
Get dependency information for one installed package.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
packageId | string | Yes | - | Installed package ID |
Returns: {success, packageId, version, dependencyCount, dependencies}
package_get_versions
Get available versions for one installed package.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
packageId | string | Yes | - | Installed package ID |
Returns: {success, packageId, currentVersion, compatibleVersion, latestVersion, allVersions}
Exact Signatures
Exact names, parameters, defaults, and returns are defined by GET /skills/schema or unity_skills.get_skill_schema(), not by this file.