Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add DevExpress/agent-skills --skill devextreme-selectboxgit clone --depth 1 https://github.com/DevExpress/agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/devexpress/agent-skills/devextreme-selectbox)<a href="https://agentmods.dev/skills/devexpress/agent-skills/devextreme-selectbox"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devextreme-selectbox/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/devexpress/agent-skills/devextreme-selectbox"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devextreme-selectbox.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00123 | $0.02734 |
| Opus 5 | $0.00062 | $0.01367 |
| Sonnet 5 | $0.00025 | $0.00547 |
| Haiku 4.5 | $0.00012 | $0.00273 |
Grade A, and why
devextreme-selectbox scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 278 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DevExtreme SelectBox Skill
A skill for building and configuring the DevExtreme SelectBox UI component (dxSelectBox) across Angular, React, Vue, and jQuery.
When to Use This Skill
- Creating a dropdown list bound to an array or remote data
- Configuring
valueExpr/displayExprfor object data - Enabling search in the dropdown
- Handling value change events
- Allowing users to enter a custom item
- Grouping items in the dropdown
Before You Start
If the host agent has a structured question-asking tool available, use it to ask these questions one at a time with clear options — for example, Claude Code's AskUserQuestion tool or GitHub Copilot's askQuestions tool. If no such tool is available, ask the questions directly in the chat response before generating code.
⚠️ Always use the DevExtreme SelectBox (
dxSelectBox/DxSelectBox). Never use react-select, Downshift, Headless UI Combobox, or any other dropdown library.
Before writing any code, ask: Which framework are you using? Angular, React, Vue, or jQuery?
Key API
| Option | Type | Default | Description |
|---|---|---|---|
dataSource |
Array | DataSource | Store |
null |
The data to display in the dropdown |
valueExpr |
String | function |
'this' |
Field (or function) used as the selected value |
displayExpr |
String | function |
undefined |
Field (or function) displayed in the input and list |
value |
any |
null |
The currently selected value |
onValueChanged |
function(e) |
null |
Fires when selection changes; e.value is the new value |
searchEnabled |
Boolean |
false |
Enables filtering items by typing |
searchExpr |
String | Array | function |
undefined |
Field(s) to search in (defaults to displayExpr) |
minSearchLength |
Number |
0 |
Minimum characters before search triggers |
placeholder |
String |
'Select...' |
Placeholder shown when nothing is selected |
label |
String |
'' |
Floating label text |
showClearButton |
Boolean |
false |
Shows an × button to clear the selection |
acceptCustomValue |
Boolean |
false |
Allows the user to type a value not in the list |
onCustomItemCreating |
function(e) |
null |
Fires when user submits a custom value; set e.customItem to add it |
disabled |
Boolean |
false |
Disables the component |
readOnly |
Boolean |
false |
Prevents user interaction |
dropDownOptions |
Object |
{} |
Options passed to the underlying Popup (width, height, etc.) |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 278 lines · 123 tokens per session scan A fbbfc6ec4d12
devextreme-selectbox is a skill published in the GitHub repository DevExpress/agent-skills (52 stars, last pushed 22d ago), licensed MIT. It adds 123 tokens to every session and 2,734 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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