Agent skill

Package Search

by IvanMurzak in IvanMurzak/Unity-MCP

Search Unity's package registry plus locally installed packages (Git, local, embedded sources) by query string.

Apache-2.0Auto-check passedGame Development

Install Package Search

skills CLI
$ npx skills add IvanMurzak/Unity-MCP --skill package-search -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install IvanMurzak/Unity-MCP package-search --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/IvanMurzak/Unity-MCP.git skills-src && mkdir -p .claude/skills && cp -r skills-src/Unity-MCP-Plugin/.claude/skills/package-search .claude/skills/package-search && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
package-search
GitHub stars
4.4k
Token cost
~1.2k tokens
SKILL.md length
297 words
Files
1
Skills in repo
80
Repo updated
First seen
Licence
Apache-2.0

At a glance

Search Unity's package registry plus locally installed packages (Git, local, embedded sources) by query string.

  • Tasks that involve Game development
  • SKILL.md covers Inputs, Result composition, How to Call and Input, plus 1 more section
  • Calls npm and npx

What it does

Package Search is an agent skill from IvanMurzak/Unity-MCP. Search Unity's package registry plus locally installed packages (Git, local, embedded sources) by query string. Returns available versions and installation status. Online mode fetches exact matches from the live registry then supplements with cached substring matches.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Game Development, covering Game development. It works with Git and Model Context Protocol. The repository describes itself as: AI Skills, MCP Tools, and CLI for Unity Engine. Full AI develop and test loop. Use cli for quick setup. Efficient token usage, advanced tools. Any C method may be turned into a… The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Game development

Example prompts

  • “/package-search”

Requirements

  • Node.js

What it can do on your machine

Read from SKILL.md and the folder at commit 4c8056f. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npm
    • npx

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

  • Network

    No URLs in SKILL.md. Its commands use npm and npx, which can reach the network depending on how they are called.

    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

Package Search loads about 1.2k tokens when it runs. Until then it costs about 71 tokens; SKILL.md has 297 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~71
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

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

Auto-check passed

The automated check found no risky patterns in SKILL.md.

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 IvanMurzak/Unity-MCP at commit 4c8056f, republished under its Apache-2.0 licence (© IvanMurzak). 297 words, ~1,223 tokens.

Download SKILL.mdSave it as .claude/skills/package-search/SKILL.md (or your agent's skills folder).
name
package-search
description
Search Unity's package registry plus locally installed packages (Git, local, embedded sources) by query string. Returns available versions and installation status. Online mode fetches exact matches from the live registry then supplements with cached substring matches.

Search for packages in both Unity Package Manager registry and installed packages. Use this to find packages by name before installing them. Returns available versions and installation status. Searches both the Unity registry and locally installed packages (including Git, local, and embedded sources). Results are prioritized: exact name match, exact display name match, name substring, display name substring, description substring. Note: Online mode fetches exact matches from live registry, then supplements with cached substring matches.

Inputs

  • query — package id, name, display name, or description keyword (case-insensitive). Required.
  • maxResults (default 10) — caps the returned list.
  • offlineMode (default true) — when false, hits the live registry for exact matches; cached registry data still backs the substring matches in both modes.

Result composition

Each entry includes name, display name, latest version, truncated description, install status, installed version (if any), and the top-5 compatible versions.

How to Call

bash
unity-mcp-cli run-tool package-search --input '{
  "query": "string_value",
  "maxResults": 0,
  "offlineMode": false
}'

For complex input (multi-line strings, code), save the JSON to a file and use:

bash
unity-mcp-cli run-tool package-search --input-file args.json

Or pipe via stdin (recommended):

bash
unity-mcp-cli run-tool package-search --input-file - <<'EOF'
{"param": "value"}
EOF
Troubleshooting

If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead. Read the /unity-initial-setup skill for detailed installation instructions.

Input

NameTypeRequiredDescription
querystringYesThe package id, name, or description. Can be: Full package id 'com.unity.textmeshpro', Full package name 'TextMesh Pro', Partial name 'TextMesh' (will search in Unity registry and installed packages), Description keyword 'rendering' (searches in package descriptions).
maxResultsintegerNoMaximum number of results to return. Default: 10
offlineModebooleanNoWhether to perform the search in offline mode (uses cached registry data only). Default: true. Set to false to fetch latest exact matches from Unity registry.
Input JSON Schema
json
{
  "type": "object",
  "properties": {
    "query": {
      "type": "string"
    },
    "maxResults": {
      "type": "integer"
    },
    "offlineMode": {
      "type": "boolean"
    }
  },
  "required": [
    "query"
  ]
}

Output

Output JSON Schema
json
{
  "type": "object",
  "properties": {
    "result": {
      "$ref": "#/$defs/System.Collections.Generic.List(AIGD.PackageSearchResult)"
    }
  },
  "$defs": {
    "AIGD.PackageSearchResult": {
      "type": "object",
      "properties": {
        "Name": {
          "type": "string",
          "description": "The official Unity name of the package used as the package ID."
        },
        "DisplayName": {
          "type": "string",
          "description": "The display name of the package."
        },
        "LatestVersion": {
          "type": "string",
          "description": "The latest version available in the registry."
        },
        "Description": {
          "type": "string",
          "description": "A brief description of the package."
        },
        "IsInstalled": {
          "type": "boolean",
          "description": "Whether this package is already installed in the project."
        },
        "InstalledVersion": {
          "type": "string",
          "description": "The currently installed version (if installed)."
        },
        "AvailableVersions": {
          "$ref": "#/$defs/System.Collections.Generic.List(System.String)",
          "description": "Available versions of this package (up to 5 most recent)."
        }
      },
      "required": [
        "IsInstalled"
      ],
      "description": "Package search result with available versions."
    },
    "System.Collections.Generic.List(System.String)": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "System.Collections.Generic.List(AIGD.PackageSearchResult)": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/AIGD.PackageSearchResult",
        "description": "Package search result with available versions."
      }
    }
  },
  "required": [
    "result"
  ]
}

© IvanMurzak, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in Unity-MCP-Plugin/.claude/skills/package-search of IvanMurzak/Unity-MCP.

Open the folder on GitHubat commit 4c8056f

Compare with similar skills

Package Search next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Package Search compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Package Search this skillIvanMurzak/Unity-MCP4.4k—~1.2kAutomated safety check: PassApache-2.0
Sprite Genaldegad/sprite-gen2.6k—~4.8kAutomated safety check: PassApache-2.0
Unreal Blueprint Authoringflopperam/unreal-engine-mcp1.1k—~1.6kAutomated safety check: PassNone
MCP DriverRandallLiuXin/GodotMaker5501 repos~1.1kAutomated safety check: PassCustom licence
UMG Material MCPwinyunq/UnrealMotionGraphicsMCP210—~913Automated safety check: PassMIT
Unity PluginTomLeeLive/openclaw-unity-plugin107—~5.1kAutomated safety check: PassApache-2.0

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Questions about Package Search

What does Package Search do?

Search Unity's package registry plus locally installed packages (Git, local, embedded sources) by query string. Package Search is an agent skill from IvanMurzak/Unity-MCP. Search Unity's package registry plus locally installed packages (Git, local, embedded sources) by query string.

When should I use Package Search?

Package Search fits situations like: tasks that involve Game development.

How do I install Package Search in Claude Code?

Run `npx skills add IvanMurzak/Unity-MCP --skill package-search -a claude-code`. Or copy the skill folder (Unity-MCP-Plugin/.claude/skills/package-search in IvanMurzak/Unity-MCP) into .claude/skills/package-search in your project. Claude Code loads it when a task matches its description.

How do I install Package Search in Codex?

Run `npx skills add IvanMurzak/Unity-MCP --skill package-search -a codex`. Or copy the skill folder (Unity-MCP-Plugin/.claude/skills/package-search in IvanMurzak/Unity-MCP) into .agents/skills/package-search in your project. Codex loads it when a task matches its description.

Can I use Package Search in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add IvanMurzak/Unity-MCP --skill package-search -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/package-search, .gemini/skills/package-search, .github/skills/package-search and .opencode/skills/package-search in your project.

What does Package Search need to run?

Going by SKILL.md and its folder, Package Search needs the command-line tools its instructions call (npm and npx). Our summary lists: Node.js.

Does Package Search access the network?

SKILL.md contains no URLs. Its commands use npm and npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Package Search safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Package Search use?

Package Search is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Package Search use?

About 1.2k tokens (SKILL.md is roughly 4.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Package Search?

Skills that share tags, products or a category with Package Search: Sprite Gen (aldegad/sprite-gen, 2.6k stars), Unreal Blueprint Authoring (flopperam/unreal-engine-mcp, 1.1k stars), MCP Driver (RandallLiuXin/GodotMaker, 550 stars) and UMG Material MCP (winyunq/UnrealMotionGraphicsMCP, 210 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Package Search?

IvanMurzak (a GitHub user) maintains it in IvanMurzak/Unity-MCP, which has 4,405 GitHub stars. The repository holds 80 skills in this directory. The repository was last updated on October 4, 2026.

Source: IvanMurzak/Unity-MCP on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.