unity-cli

name	unity-cli
description	Use when interacting with Unity CLI from the terminal, or to control a running/connected Unity Editor from the command line — create or modify GameObjects, edit scenes and assets, inspect the hierarchy, and run C# in a live Editor instead of hand-editing scene or asset files. Also install, upgrade or uninstall editors, create, list or open projects, manage modules, manage licenses, check auth status, read logs, browse Unity releases, build/test projects, configure the Unity MCP server for AI agents, or run any other Unity CLI operation. For a guided idea-to-running-project flow for a brand-new game, use the new-unity-project skill instead.
allowed-tools	["Bash"]

Unity CLI

Drive a running Unity Editor (if one is open)

If a Unity Editor is open on this machine, this CLI can control it live — create and modify GameObjects, edit scenes and assets, inspect the hierarchy, and run arbitrary C# — through the project's Pipeline package (com.unity.pipeline). This runs entirely on your local machine, in your own user account, against your own open Editor: it is not remote access and grants no privilege you don't already have at your own terminal. When an Editor is available, drive it instead of hand-editing scene or asset files.

unity status                    # confirm a connected Editor (look for state "ready")
unity command                   # list the commands the Editor exposes
unity command editor_play       # run one — e.g. enter Play mode
# Run arbitrary C# — e.g. add a GameObject named "Joe" — when the Editor exposes eval:
unity command eval 'new UnityEngine.GameObject("Joe");'

Requires the project's com.unity.pipeline package (Unity 6.0+) — add it once with unity pipeline install. Full details — launching a headless Editor to drive, unity list tool discovery, and authoring custom [CliCommand] tools — are in integration-advanced.md.

Can't connect / commands time out? Check for Safe Mode first. When a project has C# compile errors, the Editor boots into Safe Mode, where the Pipeline package doesn't load — so unity command, unity status, and unity list can't connect at all. Don't fall back to blind file-editing: run unity pipeline list to confirm, then fix the compile errors and restart Unity. Full recovery loop in integration-advanced.md → Recovering from Safe Mode.

Step 1: Install the CLI (if not already installed)

First check if the CLI is available:

which unity && unity --version

If not found, install it:

macOS / Linux

curl -fsSL https://public-cdn.cloud.unity3d.com/hub/prod/cli/install.sh | UNITY_CLI_CHANNEL=beta bash

Windows (PowerShell)

$env:UNITY_CLI_CHANNEL='beta'; irm https://public-cdn.cloud.unity3d.com/hub/prod/cli/install.ps1 | iex

After installing, open a new shell so unity is on PATH, then verify:

unity --version

If the install script fails or the binary is still not found, tell the user and stop.

Step 2: Verify it works

unity --version

If this fails with a permissions error or crash, the CLI installation may be broken. Suggest re-running the install script.

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Global flags

These work on every command:

Flag	Description
--format <fmt>	Output format: human (default), json, tsv, ndjson. Also via UNITY_FORMAT env var.
--json	Global shorthand for --format json, accepted on every command (e.g. unity status --json, unity doctor --json). --format takes precedence when both are supplied.
--no-banner	Suppress the branded header — use in scripts
--non-interactive	Disable all interactive prompts — use in CI
--quiet	Suppress non-essential output
--verbose	Print full error details (stack trace + cause chain) on failure. Also via UNITY_VERBOSE.
--proxy <url>	HTTP/HTTPS/SOCKS/PAC proxy URL for this invocation. Also via UNITY_PROXY. Takes precedence over standard HTTPS_PROXY/HTTP_PROXY/ALL_PROXY env vars and the persisted proxy.json setting.
--proxy-disable	Disable proxy for this invocation, ignoring all sources (env vars, persisted config, system settings).
--log-proxy	Log one redacted entry per outbound request (host-only URL, resolved proxy, auth source, status, duration) to proxy-request.json — for reproducing proxy issues for support. Also via UNITY_LOG_PROXY=1 or the persisted proxyRequestLogging setting.
--no-log-proxy	Opt a single invocation out of proxy request logging when it's enabled globally.

Always use --format json when you need to parse output programmatically.

A branded Unity header (logo, wordmark, CLI version) renders on the landing surfaces — bare unity, unity --help / -h, unity help, and above the first-run consent prompt. It's shown only on a TTY, prints at most once, and degrades to compact, uncolored text on narrow terminals, without Unicode, or under NO_COLOR. Piped output is unaffected. Use --no-banner to suppress it in scripts. Bare unity prints usage and exits 0.

Environment variables

All CLI env vars use the UNITY_ prefix. A CLI flag always overrides the corresponding env var.

Variable	Mirrors flag	Description
UNITY_FORMAT	--format	Output format (human, json, tsv, ndjson). HUB_FORMAT is a deprecated alias.
UNITY_EDITOR_VERSION	--editor-version	Editor version (e.g. 2023.3.0f1, latest, lts).
UNITY_ARCHITECTURE	--architecture	Chip architecture (x86_64, arm64).
UNITY_PROJECT_PATH	path argument	Project path — used by open, and also honored by status and the cloud commands.
UNITY_QUIET	--quiet	Suppress non-essential output.
UNITY_VERBOSE	--verbose	Show full error details on failure.
UNITY_NON_INTERACTIVE	--non-interactive	Disable interactive prompts.
UNITY_NO_BANNER	--no-banner	Suppress the branded banner.
UNITY_RUN_TIMEOUT	--timeout	Timeout for unity run in seconds.
UNITY_TEST_TIMEOUT	--timeout	Timeout for unity test in seconds.
UNITY_CLOUD_ORG	--cloud-org	Active Unity Cloud organization id or name for a single call.
UNITY_SERVICE_ACCOUNT_ID	—	Service account client ID for non-interactive (CI) auth.
UNITY_SERVICE_ACCOUNT_SECRET

CI service account auth: Set both UNITY_SERVICE_ACCOUNT_ID and UNITY_SERVICE_ACCOUNT_SECRET to skip the browser OAuth flow — this keeps the secret out of the process argument list and shell history. These map to the --client-id / --secret-from-stdin inputs of unity auth login, but reading the credentials from the environment isn't a full login: it doesn't run the interactive flow or persist credentials to the keyring.

Getting help

If a command fails or you're unsure of the available options, append -h or --help to any command or subcommand:

unity --help
unity install --help
unity projects --help
unity projects create --help

This works at every level of the command hierarchy.

Exit codes

Code	Meaning
0	Success
1	General error
2	Bad arguments
3	Authentication failure
4	Precondition not met (e.g. no license active, floating server not configured)
6	Command-specific failure
130	Interrupted — Ctrl+C / SIGINT (128 + 2)
143	Terminated by SIGTERM (128 + 15) — e.g. kill or a CI/runner timeout. Emitted by long-running commands that install a signal handler to clean up first (currently unity build, which scrubs the temporary Android keystore).

The cloud and auth commands map an authentication failure (expired/missing session, rejected sign-in) to 3, and any other operational failure (network, server error) to 6 — so scripts can reliably tell "sign in again" apart from a genuine command failure.

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Commands

The full per-command reference — syntax, flags, and examples — lives in grouped files under references/. Read the file for the command group you need; all the global flags, environment variables, and exit codes above apply throughout. Every command also supports -h / --help (see Getting help).

Commands	Reference file
auth (login / logout / status), license (activate / return / server), cloud (org / project)	auth-license-cloud.md
editors (list / running / add / default / path / install-path / info / upgrade / module), install, uninstall, modules, install-modules	editors-install.md
projects (list / create / new / clone / open / link / require / upgrade / export / import / pin / size / exec / close), releases, templates	projects-templates.md
config (proxy / update-check), hub install	config-hub.md
run, test, build	build-run-test.md
logs, doctor, env, cache, analytics, changelog, language, completion, bug, upgrade, self-uninstall, diagnose proxy	diagnostics-maintenance.md
mcp (+ configure), connected editors (pipeline / command / status / list), shell	integration-advanced.md

Common workflows

Edit a scene, GameObject, or asset — unity status first

Before editing any scene, GameObject, prefab, or asset, run unity status to detect a connected Editor. If one is reachable, drive it with live commands instead of touching project files — the Editor applies changes to the actual active scene and keeps its in-memory state in sync.

unity status                       # is an Editor connected? (look for state "ready")
unity command                      # discover the scene/GameObject commands THIS Editor exposes
# then drive it with the commands it lists — for example, if your Editor exposes them:
unity command create_gameobject    # act on the live, active scene
unity command save_scene           # persist the active scene

Command names are defined by the Editor, so run unity command (or unity list) to see the exact set — don't assume a name.

Never hand-edit .unity, .prefab, or .asset YAML while a live Editor is reachable. Raw-file edits are:

• error-prone — fileIDs and GUIDs are assigned by hand and easy to get wrong;
• invisible to the running Editor until a reimport, so the change silently fails to take effect; and
• prone to hitting the wrong file — e.g. writing to SampleScene.unity while the Editor's active scene is actually Demo2.unity, producing valid-looking YAML that changes nothing the user sees.

Only fall back to editing files directly when unity status shows no reachable Editor — and say so explicitly ("no live Editor detected, editing the file directly").

One exception worth ruling out first: if an Editor is running for this project but unity status / unity command won't connect, it may be stuck in Safe Mode from a compile error rather than genuinely absent. Run unity pipeline list — if it reports Safe Mode, editing the C# source to fix the compile errors (and then restarting Unity) is the correct move, not a fallback. See integration-advanced.md → Recovering from Safe Mode.

Bootstrap a new project from scratch

For a guided end-to-end experience — concept questions, installing the Editor in the background while you plan, package selection, and monetization handoff — use the new-unity-project skill. This section is the raw CLI recipe that skill builds on; use it directly when you just want the commands.

Take an idea to a running, version-controlled project using only the CLI. Decide the target platforms first — they determine which Editor modules you install in step 2. You can add modules later (unity install-modules), but a project can't build for a platform until that platform's module is installed, so it's simplest to decide up front.

# 1. Confirm the CLI works and you're signed in and licensed (see references/auth-license-cloud.md).
unity --version
unity auth status --format json      # if signed out:      unity auth login
unity license status --format json   # if none active:      unity license activate

# 2. Pick and install an Editor with the modules your target platforms need.
#    Default to the latest LTS (most stable, ~2 years of patches). Reach for a Tech-stream
#    release (--stream tech) only for a feature not yet in LTS; treat --stream beta/alpha as
#    evaluation-only, never for a project you intend to ship. A deadline argues for LTS.
#    (lts / latest aliases work wherever a version is accepted.)
unity releases --stream lts --limit 5 --format json
unity install lts --module android --module ios --yes --accept-eula   # add --module webgl, etc.
unity editors --installed --format json                               # confirm it landed

# 3. List the real template ids this Editor offers — don't guess them.
unity templates list --editor lts --format json
#    Common ids: com.unity.template.3d, com.unity.template.2d, and a URP template (id varies by version).

# 4. Create the project. The first positional arg is the NAME; --path sets the parent directory.
#    All options supplied, so it won't prompt; add --non-interactive in CI.
unity projects create "MyGame" --path ~/UnityProjects \
  --editor-version lts --template com.unity.template.3d

Source control — let the user choose. The CLI publishes the new project to a fresh remote in one step for any provider. Always pass tokens on stdin (--git-token-stdin) so secrets never land in shell history or the process list. Pick based on the project — don't default to one:

• Git — GitHub / GitLab (--vcs github / --vcs gitlab). Ubiquitous. For asset-heavy games add Git LFS (--git-lfs) so large binaries don't bloat history.
• Unity Version Control — UVCS (--vcs uvcs). Unity's own VCS, built for large binary game assets: it handles them natively (no LFS needed) and supports file locking — often the better fit for art-heavy projects or larger teams. Auth uses your Unity sign-in; --vcs-region selects the region.

# Git (GitHub) — drop --git-lfs if the game isn't asset-heavy. Add --no-initial-commit if you
# want to add packages/assets BEFORE the first commit (see the new-unity-project flow).
unity projects create "MyGame" --path ~/UnityProjects \
  --editor-version lts --template com.unity.template.3d \
  --vcs github --git-namespace my-org --git-repo my-game \
  --git-visibility private --git-default-branch main --git-token-stdin --git-lfs

# Unity Version Control (UVCS) — handles binaries natively, so no LFS:
unity projects create "MyGame" --path ~/UnityProjects \
  --editor-version lts --template com.unity.template.3d \
  --vcs uvcs --git-namespace my-org --git-repo my-game --vcs-region <region>

Feed the token to --git-token-stdin from a secret store, never a literal — e.g. … --git-token-stdin <<<"$GIT_TOKEN" where $GIT_TOKEN comes from your CI/secret manager (UVCS uses your Unity sign-in, so no token is needed). See references/projects-templates.md for the full source-control flag set. For a purely local Git repository instead, initialize git with a Unity-appropriate ignore so the multi-GB Library/ and other generated folders are never committed:

cd ~/UnityProjects/MyGame
git init -b main
# Download (do not pipe to a shell) a maintained Unity .gitignore:
curl -fsSL https://raw.githubusercontent.com/github/gitignore/main/Unity.gitignore -o .gitignore

# Asset-heavy game? Keep large binaries out of git history with Git LFS:
git lfs install
git lfs track "*.psd" "*.fbx" "*.wav" "*.mp3" "*.png"   # adjust to your asset types
git add .gitattributes

git add -A
git status                             # sanity-check: Library/ Temp/ obj/ Build/ must NOT be staged
git commit -m "Initial Unity project: MyGame"
git ls-files | grep -c '^Library/'     # must print 0

What the CLI does and doesn't cover. The CLI handles editor, project, and source control. It does not manage UPM (Unity Package Manager) packages — to add packages beyond the template headlessly, use the unity-package-management skill (C# PackageManager Client API). For monetization/backend, hand off to the dedicated skills: implement-in-app-purchases (IAP), levelplay-unity-integration (ads), or build-live-game (accounts, cloud save, economy, remote config, leaderboards). Open the project to start working: unity open ~/UnityProjects/MyGame.

Find and install a missing editor

# 1. Check what's installed
unity editors --installed --format json

# 2. Browse available LTS versions
unity releases --lts --limit 5 --format json

# 3. Install
unity install 6000.0.47f1 --yes --accept-eula

Open a project with the correct editor

# 1. Check the project's required editor version
unity projects info /path/to/MyProject --format json
# Look at "editorVersion" in the result

# 2. Confirm that editor is installed
unity editors --installed --format json

# 3. Open (warns if the editor version is missing)
unity open /path/to/MyProject

CI: activate a license, then build

# 1. Sign in non-interactively with a service account
unity auth login --client-id "$UNITY_SERVICE_ACCOUNT_ID" --secret-from-stdin <<<"$UNITY_SERVICE_ACCOUNT_SECRET"

# 2. Activate the entitlement license (or use --serial / --floating)
unity license activate

# 3. Build
unity build /path/to/MyProject \
  --editor-version 6000.0.47f1 \
  --target StandaloneLinux64 \
  --execute-method Builder.PerformBuild \
  --allow-install
echo "Exit code: $?"

# 4. Return the seat when done (floating/assigned)
unity license return --yes

CI: headless build

Prefer the dedicated unity build command (handles batch mode, logging, and CI flags):

unity build /path/to/MyProject \
  --editor-version 6000.0.47f1 \
  --target StandaloneLinux64 \
  --execute-method Builder.PerformBuild \
  --allow-install
echo "Exit code: $?"

Or use unity run (batch mode is automatic — never pass -batchmode/-quit):

unity run /path/to/MyProject \
  --editor-version 6000.0.47f1 \
  --allow-install \
  -- -executeMethod Builder.PerformBuild -logFile build.log
echo "Exit code: $?"

CI: run tests and publish results

unity test /path/to/MyProject \
  --editor-version 6000.0.47f1 \
  --mode EditMode \
  --report-format junit \
  --output ./test-results.xml \
  --allow-install \
  --timeout 600
echo "Exit code: $?"   # 0 = pass, 6 = test failures

--report-format junit makes --output a JUnit-schema report, which GitHub Actions and GitLab ingest as native test results with no converter step. It is written even when tests fail. Drop the flag for the NUnit3 default, or use --report-format nunit,junit to get both from one run. Add --coverage to collect coverage via the Unity Code Coverage package — it warns and carries on if the project doesn't have the package. See build-run-test.md.

Debug the CLI

# Check auth + installed editors + recent errors in one command
unity doctor --format json

# Follow live logs during an install
unity logs --follow --level info

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Notes

• --non-interactive and --yes together suppress all prompts — use both in CI.
• --format json always produces machine-readable output; prefer it over parsing human text. Error envelopes are pretty-printed with the same 2-space indent as success envelopes.
• Read failures from stdout, not stderr. A failed command still writes a complete document to stdout: under --format json an envelope with success: false and a populated errors array (errors[0].code is the stable token to branch on); under --format ndjson the usual terminal {"type":"result","success":false,…} frame. Branch on success, never on data — data is usually null on a failure, but not always: a partial unity editors add failure carries a row per path, and an ambiguous unity auth switch carries data.candidates for you to disambiguate with. Check success and the exit code — never treat empty stdout as a failure signal, and do not parse stderr, which carries only human diagnostics in these formats. A handful of commands have not migrated yet and still print {"error": "…"} to stderr with empty stdout; if stdout is empty on a non-zero exit, that is a known bug in that command rather than a shape you should code against.
• unity <version> [path] is a shorthand for unity open [path] --editor-version <version>. Works with lts, latest, or a full version string like 6000.0.47f1.
• The CLI supports kubectl-style plugins: any unity-<name> binary on PATH is callable as unity <name>.
• Terminal output is hardened against control-character / escape-sequence injection from server-provided values (project titles, editor versions, module names) — C0 controls and non-SGR escape sequences are stripped from table/list/tree output, and now also from Commander usage errors, the unity bug log-archive warning, and unity projects add/remove machine (tsv) output, while SGR color/style codes are preserved.
• The CLI reports anonymous crashes and errors via Sentry to help fix bugs (no IP address or hostname; home-directory paths and token-like values scrubbed before send), aligned with the Unity Hub. Opting in to analytics additionally attaches an anonymized machine id; opted-out users stay fully anonymous. Set to disable reporting entirely.