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 Poorgramer-Zack/dart-expert-skills --skill fl-chartgit clone --depth 1 https://github.com/Poorgramer-Zack/dart-expert-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/poorgramer-zack/dart-expert-skills/fl-chart)<a href="https://agentmods.dev/skills/poorgramer-zack/dart-expert-skills/fl-chart"><img src="https://agentmods.dev/badge/skills/poorgramer-zack/dart-expert-skills/fl-chart/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/poorgramer-zack/dart-expert-skills/fl-chart"><img src="https://agentmods.dev/badge/skills/poorgramer-zack/dart-expert-skills/fl-chart.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 | $0.00140 | $0.03747 |
| Opus 5 | $0.00070 | $0.01873 |
| Sonnet 5 | $0.00028 | $0.00749 |
| Haiku 4.5 | $0.00014 | $0.00375 |
Grade A, and why
implementing-fl-chart 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 11d 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 — 419 lines — stays where its author put it; the contents beside it link to each section on GitHub.
FL Chart — Flutter Data Visualization (v1.2.0)
Goal
Production-ready chart rendering in Flutter with implicit animations, touch interactivity, and pan/zoom transformations. Supports 6 chart types covering most data visualization needs.
Process
1. Install
dependencies:
fl_chart: ^1.2.0
Requires Flutter >=3.27.4, Dart SDK >=3.6.2.
2. Choose Chart Type
| Chart | Widget | Use Case |
|---|---|---|
| Line | LineChart |
Trends over time, continuous data, multi-series comparison |
| Bar | BarChart |
Category comparison, grouped/stacked bars, horizontal bars |
| Pie | PieChart |
Proportions, donut charts, percentage breakdowns |
| Scatter | ScatterChart |
Distribution, correlation, cluster analysis |
| Radar | RadarChart |
Multi-axis comparison, skill profiles, feature ratings |
| Candlestick | CandlestickChart |
Financial OHLC data, stock price visualization |
3. Quick Start — Each Chart Type
LineChart
// Multi-series line chart with gradient fill
LineChart(
LineChartData(
minX: 0, maxX: 6, minY: 0, maxY: 25,
lineBarsData: [
LineChartBarData(
spots: [FlSpot(0, 12), FlSpot(1, 9), FlSpot(2, 15), FlSpot(3, 11), FlSpot(4, 18), FlSpot(5, 21), FlSpot(6, 18)],
isCurved: true,
color: Colors.green,
barWidth: 3,
dotData: FlDotData(show: false),
belowBarData: BarAreaData(
show: true,
gradient: LinearGradient(
begin: Alignment.topCenter, end: Alignment.bottomCenter,
colors: [Colors.green.withValues(alpha: 0.3), Colors.green.withValues(alpha: 0.0)],
),
),
),
LineChartBarData(
spots: [FlSpot(0, 8), FlSpot(1, 6), FlSpot(2, 9), FlSpot(3, 13), FlSpot(4, 7), FlSpot(5, 11), FlSpot(6, 9)],
isCurved: true,
color: Colors.redAccent,
barWidth: 3,
dotData: FlDotData(show: false),
belowBarData: BarAreaData(
show: true,
gradient: LinearGradient(
begin: Alignment.topCenter, end: Alignment.bottomCenter,
colors: [Colors.redAccent.withValues(alpha: 0.3), Colors.redAccent.withValues(alpha: 0.0)],
),
),
),
],
titlesData: FlTitlesData(
bottomTitles: AxisTitles(sideTitles: SideTitles(showTitles: true, reservedSize: 30)),
leftTitles: AxisTitles(sideTitles: SideTitles(showTitles: true, reservedSize: 40)),
topTitles: AxisTitles(sideTitles: SideTitles(showTitles: false)),
rightTitles: AxisTitles(sideTitles: SideTitles(showTitles: false)),
),
gridData: FlGridData(show: true),
borderData: FlBorderData(show: true),
),
)
What ships with it
7 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.
- 11d ago First seen · 419 lines · 140 tokens per session scan A 02e925da64b7
implementing-fl-chart is a skill published in the GitHub repository Poorgramer-Zack/dart-expert-skills (7 stars, last pushed 1mo ago), licensed MIT. It adds 140 tokens to every session and 3,747 once invoked, about $0.0007 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 2026-08-31.
Other skills, from other repositories
at_client_skills-sdk
Use this skill when a developer is building a Dart or Flutter app that depends on atclient or atclientflutter from pub.dev, stores or shares data via the Atsign Protocol, needs onboarding (CRAM new-atsign, atKeys file, keychain, APKAM) or APKAM enrollment, or asks about AtCollection , CItem , Query , sub-collections…
signals-hooks
Comprehensive reactive state hooks for integration with flutterhooks.
signals-flutter
Highly optimized Flutter UI bindings and GPU rendering for reactive signals.
flutter-pre-caching
Use when preloading fonts, asset/network images, Lottie/Rive animations, local JSON/config, warming initial API data, or optimizing Flutter Web startup.
bloc
Use when creating a Cubit or Bloc, modeling state with sealed classes or status enums, wiring BlocBuilder/BlocListener/BlocProvider, writing bloc tests, or choosing between Cubit and Bloc.
firebase-messaging
Use when setting up Firebase Cloud Messaging, managing permissions and tokens, handling background/foreground notification taps, or dispatching messages server-side (HTTP v1).