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-textareagit 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-textarea)<a href="https://agentmods.dev/skills/devexpress/agent-skills/devextreme-textarea"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devextreme-textarea/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-textarea"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devextreme-textarea.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 | $0.00113 | $0.02349 |
| Opus 5 | $0.00056 | $0.01175 |
| Sonnet 5 | $0.00023 | $0.00470 |
| Haiku 4.5 | $0.00011 | $0.00235 |
Grade A, and why
devextreme-textarea 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 10d 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 — 235 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DevExtreme TextArea Skill
A skill for building and configuring the DevExtreme TextArea UI component (dxTextArea) across Angular, React, Vue, and jQuery. TextArea is the multiline counterpart of TextBox — it shares most of its API and adds height/resize control.
When to Use This Skill
- Creating a multiline text input (description, notes, address, comments)
- Setting a fixed height or enabling auto-resize
- Clamping auto-resize with min/max height
- Binding and reading the value
- Handling value change events
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 TextArea (
dxTextArea/DxTextArea). Never use react-textarea-autosize, a plain HTML<textarea>, or Material UI TextareaAutosize.
Before writing any code, ask: Which framework are you using? Angular, React, Vue, or jQuery?
Key API
TextArea inherits all TextBox options. The ones most relevant to TextArea specifically:
| Option | Type | Default | Description |
|---|---|---|---|
value |
String |
'' |
The current text value |
autoResizeEnabled |
Boolean |
false |
Grows/shrinks height to fit content; overrides height when true |
minHeight |
Number | String |
undefined |
Minimum height when autoResizeEnabled is true (also sets initial height) |
maxHeight |
Number | String |
undefined |
Maximum height when autoResizeEnabled is true |
height |
Number | String | function |
undefined |
Fixed height; has no effect when autoResizeEnabled is true |
onValueChanged |
function(e) |
null |
Fires when value changes; e.value is the new value |
valueChangeEvent |
String |
'change' |
DOM event that triggers the value update (e.g., 'keyup', 'input') |
placeholder |
String |
'' |
Placeholder shown when empty |
label |
String |
'' |
Floating label text |
showClearButton |
Boolean |
false |
Shows an × button to clear the field |
readOnly |
Boolean |
false |
Prevents user input |
disabled |
Boolean |
false |
Disables the component |
inputAttr |
Object |
{} |
HTML attributes applied to the inner <textarea> element (e.g., rows) |
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.
- 10d ago First seen · 235 lines · 113 tokens per session scan A be31c02a5f74
devextreme-textarea is a skill published in the GitHub repository DevExpress/agent-skills (52 stars, last pushed 23d ago), licensed MIT. It adds 113 tokens to every session and 2,349 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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