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 KxSystems/kx-skills --skill kx-dropdowngit clone --depth 1 https://github.com/KxSystems/kx-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/kxsystems/kx-skills/kx-dropdown)<a href="https://agentmods.dev/skills/kxsystems/kx-skills/kx-dropdown"><img src="https://agentmods.dev/badge/skills/kxsystems/kx-skills/kx-dropdown/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/kxsystems/kx-skills/kx-dropdown"><img src="https://agentmods.dev/badge/skills/kxsystems/kx-skills/kx-dropdown.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00068 | $0.01521 |
| Opus 5 | $0.00034 | $0.00760 |
| Sonnet 5 | $0.00014 | $0.00304 |
| Haiku 4.5 | $0.00007 | $0.00152 |
Grade A, and why
kx-dropdown 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 — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
KX Dropdown Component
Also read kx-dashboard-core for: envelope, screen/widget wrapper, data sources, ViewState, binding patterns, actions, notifications, and the pre-flight checklist.
This skill uses progressive disclosure: the workflow, hazards, and output rules are here; the bulky JSON schema, field tables, data-source shapes, and examples live in reference/. Read only the reference file relevant to your current step.
Reference Files
| File | Read it when you need… |
|---|---|
| reference/component-schema.md | The raw component JSON — full options schema, the Basics field reference table, and the single/multi/list ViewState patterns. |
| reference/data-source-patterns.md | Wiring the list data source — static distinct query, multi-column, ViewState-parameterised cascade — plus the Actions pattern for publishing extra columns. |
| reference/examples.md | Eight worked NLQ → JSON examples for every dropdown shape. |
When to Use This Skill
- User asks for a dropdown, combobox, or selector widget
- User wants a symbol / instrument / category filter that publishes a selected value to a ViewState
- User wants multiple selections (multi-select)
- User wants to populate a dropdown from a kdb+ table or query
- User wants to publish multiple column values on selection (e.g.
symANDexchangesimultaneously) - User wants grouped list items (e.g. symbols grouped by exchange)
- User wants a static option list (e.g.
Dark/Lighttheme picker) - User wants a cascading / dependent dropdown filtered by another selection
When NOT to Use This Skill
Do not use Dropdown to display a computed query result. Dropdown is an input control for user selection — it is not a display widget.
| Scenario | Correct component |
|---|---|
| Query returns a single scalar (total count, last price, sum, avg) | Text — bind via Data + Template |
| Query returns a summary row with multiple metrics | Text — multi-column Handlebars template |
| Showing a live-updating KPI / stat tile | Text — with polling data source |
| Showing the current value of a ViewState | Text — via ViewState template interpolation |
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 88 lines · 68 tokens per session scan A d6abb80b277d
kx-dropdown is a skill published in the GitHub repository KxSystems/kx-skills (16 stars, last pushed 8d ago), licensed Apache-2.0. It adds 68 tokens to every session and 1,521 once invoked, about $0.0003 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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