Agent skill

Add Property Type

Add a complete Yontrack property type — Kotlin PropertyType class, GraphQL mutation provider, and all required frontend UI components (Icon, Display, Form, FormPrepare).

MITAuto-check passedBackend & APIs

Install Add Property Type

skills CLI

$ npx skills add yontrack/yontrack --skill add-property-type -a claude-code

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

GitHub CLI

$ gh skill install yontrack/yontrack add-property-type --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/yontrack/yontrack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/add-property-type .claude/skills/add-property-type && 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/

Paste into Claude Code

Install the "add-property-type" agent skill from https://github.com/yontrack/yontrack/tree/main/.claude/skills/add-property-type into .claude/skills/add-property-type/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-property-type", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/yontrack/yontrack/tree/main/.claude/skills/add-property-type

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add yontrack/yontrack --skill add-property-type -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install yontrack/yontrack add-property-type --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/yontrack/yontrack.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/add-property-type .agents/skills/add-property-type && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "add-property-type" agent skill from https://github.com/yontrack/yontrack/tree/main/.claude/skills/add-property-type into .agents/skills/add-property-type/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-property-type", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add yontrack/yontrack --skill add-property-type -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install yontrack/yontrack add-property-type --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/yontrack/yontrack.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/add-property-type .cursor/skills/add-property-type && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "add-property-type" agent skill from https://github.com/yontrack/yontrack/tree/main/.claude/skills/add-property-type into .cursor/skills/add-property-type/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-property-type", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/yontrack/yontrack.git --path .claude/skills/add-property-type

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add yontrack/yontrack --skill add-property-type -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install yontrack/yontrack add-property-type --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/yontrack/yontrack.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/add-property-type .gemini/skills/add-property-type && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "add-property-type" agent skill from https://github.com/yontrack/yontrack/tree/main/.claude/skills/add-property-type into .gemini/skills/add-property-type/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-property-type", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install yontrack/yontrack add-property-type

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add yontrack/yontrack --skill add-property-type -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/yontrack/yontrack.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/add-property-type .github/skills/add-property-type && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "add-property-type" agent skill from https://github.com/yontrack/yontrack/tree/main/.claude/skills/add-property-type into .github/skills/add-property-type/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-property-type", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add yontrack/yontrack --skill add-property-type -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install yontrack/yontrack add-property-type --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/yontrack/yontrack.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/add-property-type .opencode/skills/add-property-type && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "add-property-type" agent skill from https://github.com/yontrack/yontrack/tree/main/.claude/skills/add-property-type into .opencode/skills/add-property-type/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-property-type", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: add-property-type
GitHub stars: 102
Token cost: ~990 tokens
SKILL.md length: 225 words
Files: 1
Skills in repo: 7
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Add a complete Yontrack property type — Kotlin PropertyType class, GraphQL mutation provider, and all required frontend UI components (Icon, Display, Form, FormPrepare).

Works in 5 steps: Define the data class → Implement the PropertyType → Add a GraphQL mutation provider (if… → …
Asked to create a new property type
SKILL.md covers Step 1 — Define the data class, Step 2 — Implement the…, Step 3 — Add a GraphQL… and Step 4 — Create frontend UI…, plus 1 more section
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Add Property Type is an agent skill from yontrack/yontrack. Add a complete Yontrack property type — Kotlin PropertyType class, GraphQL mutation provider, and all required frontend UI components (Icon, Display, Form, FormPrepare). Use when asked to create a new property type.

Its SKILL.md is about 990 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 Backend & APIs, covering GraphQL, Frontend development and Android development. It works with GraphQL and Kotlin. The repository describes itself as: Continuous delivery monitoring. The licence is MIT.

When your agent uses it

Asked to create a new property type
Tasks that involve GraphQL
Tasks that involve Frontend development

Example prompts

“/add-property-type”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

Define the data class
Implement the PropertyType
Add a GraphQL mutation provider (if needed)
Create frontend UI components
Final checklist

What it can do on your machine

Read from SKILL.md and the folder at commit 8b8cd43. 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
No scripts in the folder and no shell commands in SKILL.md (its code samples are kotlin).
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

Add Property Type loads about 990 tokens when it runs. Until then it costs about 58 tokens; SKILL.md has 225 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~58
When it runs · the whole SKILL.md, loaded when a task matches: ~990

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 yontrack/yontrack at commit 8b8cd43, republished under its MIT licence (© yontrack). 225 words, ~990 tokens.

Download SKILL.mdSave it as .claude/skills/add-property-type/SKILL.md (or your agent's skills folder).

name: add-property-type
description: Add a complete Yontrack property type — Kotlin PropertyType class, GraphQL mutation provider, and all required frontend UI components (Icon, Display, Form, FormPrepare). Use when asked to create a new property type.
user-invocable: true

/add-property-type — Add a Yontrack Property Type

Arguments passed: $ARGUMENTS

Parse $ARGUMENTS for the property name (PascalCase, e.g. MyFeature). If not provided, ask the user for:

Property name (PascalCase)
Which entity types it applies to (Project, Branch, Build, PromotionLevel, ValidationStamp, PromotionRun, ValidationRun)
The data fields it holds
Whether it needs a GraphQL mutation

Step 1 — Define the data class

In the target extension package, create the data class:

kotlin

data class {Name}Property(
    val field1: String,
    // ...
)

Step 2 — Implement the PropertyType

Create {Name}PropertyType.kt:

kotlin

@Component
class {Name}PropertyType(
    extensionFeature: {Extension}Feature,
) : AbstractPropertyType<{Name}Property>(extensionFeature) {

    override val name: String = "{Human name}"
    override val description: String = "{Description shown in docs}"
    override val supportedEntityTypes: Set<ProjectEntityType> =
        EnumSet.of(ProjectEntityType.{TYPE})

    override fun canEdit(entity: ProjectEntity, securityService: SecurityService): Boolean =
        securityService.isProjectFunctionGranted(entity, ProjectConfig::class.java)

    override fun canView(entity: ProjectEntity, securityService: SecurityService): Boolean = true

    override fun fromClient(node: JsonNode): {Name}Property = node.parse()
    override fun fromStorage(node: JsonNode): {Name}Property = node.parse()
    override fun replaceValue(value: {Name}Property, replacementFunction: (String) -> String) = value
    override fun createConfigJsonType(jsonTypeBuilder: JsonTypeBuilder): JsonType =
        jsonTypeBuilder.toType({Name}Property::class)
}

Important: Never rename this class after it is deployed — its fully qualified class name is its persistent storage ID.

Step 3 — Add a GraphQL mutation provider (if needed)

Create {Name}PropertyMutationProvider.kt:

kotlin

@Component
class {Name}PropertyMutationProvider : PropertyMutationProvider<{Name}Property> {
    override val propertyType: KClass<out PropertyType<{Name}Property>> = {Name}PropertyType::class
    override val mutationNameFragment: String = "{Name}"
    override val inputFields: List<GraphQLInputObjectField> = listOf(
        stringInputField({Name}Property::field1),
    )
    override fun readInput(entity: ProjectEntity, input: MutationInput) =
        {Name}Property(field1 = input.getRequiredString({Name}Property::field1))
}

This generates set{Name}Property and delete{Name}Property mutations automatically.

Step 4 — Create frontend UI components

Create the directory:

ontrack-web-core/components/framework/properties/
  net.nemerosa.ontrack.extension.{module}.{Name}PropertyType/

`Icon.js` (required)

An icon component representing the property visually.

`Display.js` (required)

Receives {property} prop. Renders the property value in read-only mode.

`Form.js` (required)

Receives {prefix, property, entity, form} props. Renders the Ant Design Form.Item fields for editing.

`FormPrepare.js` (optional)

Transforms form values before they are sent in the GraphQL mutation. Only needed when the form shape differs from the mutation input shape.

Step 5 — Final checklist

Data class defined
{Name}PropertyType.kt created with correct supportedEntityTypes and canEdit
{Name}PropertyMutationProvider.kt created (if mutations needed)
Frontend Icon.js created
Frontend Display.js created
Frontend Form.js created
Frontend FormPrepare.js created (if needed)
Unit test for the property type

Files

Just SKILL.md in .claude/skills/add-property-type of yontrack/yontrack.

Open the folder on GitHubat commit 8b8cd43

Compare with similar skills

Add Property Type 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.

Add Property Type compared with similar skills
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Add Property Type this skillyontrack/yontrack	102	—	~990	Automated safety check: Pass	MIT	today
Monstermq Device Integratorvogler75/monster-mq	143	—	~1.4k	Automated safety check: Pass	GPL-3.0	today
Apollo Kotlinapollographql/skills	117	—	~547	Automated safety check: Pass	MIT	2 days ago
Bggg Data Xbinggandata/bggg-skills	604	—	~1.5k	Automated safety check: Pass	MIT	1 mo ago
Inspect Network TrafficHedvigInsurance/android	154	—	~756	Automated safety check: Pass	AGPL-3.0	today
Moai Ref API Patternsmodu-ai/moai-adk	1.2k	—	~1.9k	Automated safety check: Pass	Apache-2.0	today

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Questions about Add Property Type

What does Add Property Type do?

Add a complete Yontrack property type — Kotlin PropertyType class, GraphQL mutation provider, and all required frontend UI components (Icon, Display, Form, FormPrepare). Add Property Type is an agent skill from yontrack/yontrack. Add a complete Yontrack property type — Kotlin PropertyType class, GraphQL mutation provider, and all required frontend UI components (Icon, Display, Form, FormPrepare).

When should I use Add Property Type?

Add Property Type fits situations like: asked to create a new property type; tasks that involve GraphQL; tasks that involve Frontend development.

How do I install Add Property Type in Claude Code?

Run `npx skills add yontrack/yontrack --skill add-property-type -a claude-code`. Or copy the skill folder (.claude/skills/add-property-type in yontrack/yontrack) into .claude/skills/add-property-type in your project. Claude Code loads it when a task matches its description.

How do I install Add Property Type in Codex?

Run `npx skills add yontrack/yontrack --skill add-property-type -a codex`. Or copy the skill folder (.claude/skills/add-property-type in yontrack/yontrack) into .agents/skills/add-property-type in your project. Codex loads it when a task matches its description.

Can I use Add Property Type 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 yontrack/yontrack --skill add-property-type -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-property-type, .gemini/skills/add-property-type, .github/skills/add-property-type and .opencode/skills/add-property-type in your project.

What does Add Property Type need to run?

SKILL.md names no scripts, command-line tools or credentials: Add Property Type is instructions for the agent only.

Does Add Property Type access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Add Property Type 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 Add Property Type use?

Add Property Type is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Add Property Type use?

About 990 tokens (SKILL.md is roughly 4k 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 Add Property Type?

Skills that share tags, products or a category with Add Property Type: Monstermq Device Integrator (vogler75/monster-mq, 143 stars), Apollo Kotlin (apollographql/skills, 117 stars), Bggg Data X (binggandata/bggg-skills, 604 stars) and Inspect Network Traffic (HedvigInsurance/android, 154 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Add Property Type?

yontrack (a GitHub organization) maintains it in yontrack/yontrack, which has 102 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 9, 2026.

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

Install Add Property Type

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

/add-property-type — Add a Yontrack Property Type

Step 1 — Define the data class

Step 2 — Implement the PropertyType

Step 3 — Add a GraphQL mutation provider (if needed)

Step 4 — Create frontend UI components

Icon.js (required)

Display.js (required)

Form.js (required)

FormPrepare.js (optional)

Step 5 — Final checklist

Files

Compare with similar skills

Similar skills

More from yontrack/yontrack

Related

Questions about Add Property Type

`Icon.js` (required)

`Display.js` (required)

`Form.js` (required)

`FormPrepare.js` (optional)