Unity Package Management

What it does

When your agent uses it

• The user asks to list installed packages
• Remove a package
• Configure OpenUPM
• Verify compilation after a package change

Example prompts

• “/unity-package-management”

Requirements

• Pre-approved tools (allowed-tools): Bash(unity-cli:*), Read, Grep, Glob

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

1. 1Follow runtime prerequisites. Select the
2. 2Read Packages/manifest.json, Packages/packages-lock.json when present,
3. 3Establish the requested package ID, version and registry. Use search for
4. 4For a supported registry, configure only the needed scopes. Set
5. 5Apply one requested change at a time. Install with packageId and optional
6. 6After each change, inspect both transport and tool results: a JSON error
7. 7Re-read package/registry lists, manifest and lock file; confirm the requested

What it can do on your machine

Read from SKILL.md and the folder at commit 7f45d7a. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Bash(unity-cli:*)
  • Read
  • Grep
  • Glob

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Unity Package Management loads about 1.9k tokens when it runs, and up to ~3k if it reads all its reference files. Until then it costs about 117 tokens; SKILL.md has 731 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~117

When it runs · the whole SKILL.md, loaded when a task matches

~1.9k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from akiojin/unity-cli at commit 7f45d7a, republished under its MIT licence (© akiojin). 731 words, ~1,862 tokens.

name

unity-package-management

description

Manage Unity UPM packages and scoped registries with unity-cli. Use when the user asks to list installed packages, search, install, update or remove a package, configure OpenUPM or NuGet scopes, or verify compilation after a package change. Do not use for console-only diagnostics or Player builds; use `unity-editor-tools`. For C# package-source navigation use `unity-csharp-navigate`; for new project creation use `unity-project-bootstrap`.

allowed-tools

Bash(unity-cli:*), Read, Grep, Glob

metadata.author

akiojin

metadata.version

0.1.1

metadata.category

editor

metadata.triggers

package, upm, registry

metadata.siblings

unity-localization, unity-editor-tools, unity-csharp-navigate, unity-project-bootstrap, unity-cli-usage

unity-cli system ping
unity-cli raw get_editor_state --json '{}'
unity-cli raw package_manager --json '{"action":"search","keyword":"UniTask","limit":10}'
unity-cli raw registry_config --json '{"action":"list"}'
unity-cli raw registry_config --json '{"action":"add_openupm","scopes":["com.cysharp"],"autoAddPopular":false}'
unity-cli raw package_manager --json '{"action":"install","packageId":"com.cysharp.unitask","version":"2.5.5"}'
# Wait for compilation, then verify the actual resolved version and console.
unity-cli raw package_manager --json '{"action":"info","packageName":"com.cysharp.unitask"}'
unity-cli raw package_manager --json '{"action":"list","includeBuiltIn":false}'
unity-cli raw get_editor_state --json '{}'
unity-cli raw read_console --json '{"count":100,"logTypes":["Error","Exception"],"includeStackTrace":true}'
# Only when removal was requested; repeat the completion checks afterward.
unity-cli raw package_manager --json '{"action":"remove","packageName":"com.cysharp.unitask"}'

© akiojin, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in .claude-plugin/plugins/unity-cli/skills/unity-package-management of akiojin/unity-cli.

• SKILL.md
• references/package-operations.md
• references/runtime-checklist.md

Open the folder on GitHubat commit 7f45d7a