Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/datit309/supergraphnpx agentmods add skills/datit309/supergraph/flutter-screenshotsWrote 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/datit309/supergraph/flutter-screenshots)<a href="https://agentmods.dev/skills/datit309/supergraph/flutter-screenshots"><img src="https://agentmods.dev/badge/skills/datit309/supergraph/flutter-screenshots/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/datit309/supergraph/flutter-screenshots"><img src="https://agentmods.dev/badge/skills/datit309/supergraph/flutter-screenshots.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 | $0.02224 |
| Opus 5.5 | $0.00027 | $0.00890 |
| Sonnet 5.5 | $0.00014 | $0.00445 |
| Haiku 4.5 | $0.00007 | $0.00222 |
Grade A, and why
flutter-screenshots scanned grade A with 1 finding 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 18d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
bash <(curl -s ...) or plugins/supergraph/skills/flutter-screenshots/scripts/capture-store-shots.sh interactive How it starts
The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/supergraph:flutter-screenshots
Automated, store-compliant screenshot generator for Flutter apps. Guarantees native pixel accuracy, multi-device responsive fidelity, zero manual cropping, and zero UI distortion.
Announce: "📸 /supergraph:flutter-screenshots — preparing store screenshot pipeline..."
Overview & Store Requirements Matrix
Apple App Store and Google Play Console enforce strict resolution and format rules:
| Target Device | Target Store | Exact Resolution | Ratio | Format & Rules |
|---|---|---|---|---|
| iPhone 6.9" / 6.7" | App Store (Required) | 1320 x 2868 (16 Pro Max) or 1290 x 2796 (15 Pro Max) |
~19.5:9 | 72 dpi, RGB, NO alpha channel, PNG/JPEG |
| iPad Pro 13" / 12.9" | App Store (If iPad enabled) | 2064 x 2752 (M4 13") or 2048 x 2732 (12.9") |
4:3 | 72 dpi, RGB, NO alpha channel, PNG/JPEG |
| Android Phone | Google Play (Required) | 1080 x 2400 (min side 1080px) |
16:9 to 9:20 | Max 8MB, 24-bit RGB PNG or JPEG |
| Android Tablet (10") | Google Play (If Tablet enabled) | 1600 x 2560 or 1200 x 1920 |
16:10 | Max 8MB, RGB PNG or JPEG |
⚠️ CRITICAL APPLE STORE POLICY: Apple App Store Connect automatically rejects any image containing an alpha (transparency) channel with the error:
Screenshots cannot contain alpha channels. This skill strictly strips alpha channels via macOSsipsbefore delivery.
When to Use
- When preparing release assets for Apple App Store or Google Play Store.
- When finishing major UI redesigns or features and needing fresh marketing visuals.
- When needing authentic native screenshots without opening multiple simulators simultaneously.
Step 1: Codebase Reconnaissance & Screen Selection
Scan the Flutter project to discover routes, screens, state management, and authentication barriers.
1a. Detect routing & screen catalog
# 1. Detect Router type & declared routes
rg -l "GoRoute|AutoRoute|GetPage|MaterialPageRoute|onGenerateRoute|routes:" lib/
# 2. List all screen/page files in the project
find lib -type f \( -name "*_screen.dart" -o -name "*_page.dart" -o -name "*_view.dart" \) | grep -v "/widgets/" | grep -v "/components/"
What ships with it
1 file 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.
- 18d ago First seen · 195 lines · 68 tokens per session scan A a3540001972b
flutter-screenshots is a skill published in the GitHub repository datit309/supergraph (22 stars, last pushed 2d ago), licensed MIT. It adds 68 tokens to every session and 2,224 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-29.
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