datnt-cell Unity Scripting
Part of the Unity Skills plugin.
Unity Skills protocol (quick reference)
This plugin talks to the Unity Editor through a local REST server. Before the first skill call in a session:
GET /health— discover the server (it binds a port in8090–8100). ReadcurrentMode("approval"/"auto"/"bypass") andsurfaceProfile(full/guide/noSceneAuthoring) — confirmprojectNamematches the project you're editing.- Under
approvalmode, the first write to aFullAutoskill returnsMODE_RESTRICTEDand needs a user grant; underauto/bypasswrites execute directly.
dryRun gate: before executing any skill whose exact parameters you don't already hold, call POST /skill/<name>?mode=dryRun and iterate until the response says valid:true — never guess parameters from a skill name alone. Then execute the same call without ?mode=dryRun.
Batch execution: when touching 2+ objects, prefer POST /skills/batch ({"steps":[{"skill","args"}],"continueOnError":false}, up to 50 steps per call, also supports ?mode=dryRun) over repeated single-item calls.
Error codes:
| Code | Meaning |
|---|---|
MODE_RESTRICTED / MODE_FORBIDDEN |
Needs a user grant, or needs Bypass/Allowlist. |
SURFACE_EXCLUDED |
Hidden by the current surfaceProfile — a configuration boundary, not a failure; don't retry or route around it. |
MISSING_PARAM / TARGET_NOT_FOUND |
Bad or unresolvable arguments — dryRun for the schema, locate the target first. |
For the full protocol detail, error code catalog, and guide-mode manual-* docs, optionally install the unity-core plugin — it's not required, this summary covers what you need for this skill.
Modules in this skill
| Module | Mode | Description | Doc |
|---|---|---|---|
| script | SA* | Script create/read/update | modules/script/SKILL.md |
| scriptableobject | Mixed* | ScriptableObject assets | modules/scriptableobject/SKILL.md |
| script-roles | — | Assign class roles (advisory, no REST skills) | modules/script-roles/SKILL.md |
| scriptdesign | — | Review script structure (advisory, no REST skills) | modules/scriptdesign/SKILL.md |
| asmdef | — | Plan asmdef deps (advisory, no REST skills) | modules/asmdef/SKILL.md |
| testability | — | Extract testable logic (advisory, no REST skills) | modules/testability/SKILL.md |
| patterns | — | Choose patterns (advisory, no REST skills) | modules/patterns/SKILL.md |
| async | — | Choose async model (advisory, no REST skills) | modules/async/SKILL.md |
Mode legend: SA = runs without grant in all modes, FA = needs grant under Approval, Mixed = check per-skill, * = contains auto-forbidden skills.
Routing
Skills are named <module>_<verb> (e.g. script_create, script_update, scriptableobject_create). The advisory modules (script-roles, scriptdesign, asmdef, testability, patterns, async) define no REST skills — read them for guidance/review before or after writing scripts, not for API calls.
After creating or editing a script, verify compilation via the unity-dev-workflow skill's debug/console modules — don't assume success from the write response alone.
Open the matching module doc before calling any skill whose exact parameters you don't already hold — dryRun first.