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 pedromneto97/custom-skills --skill flutter-data-layergit clone --depth 1 https://github.com/pedromneto97/custom-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/pedromneto97/custom-skills/flutter-data-layer)<a href="https://agentmods.dev/skills/pedromneto97/custom-skills/flutter-data-layer"><img src="https://agentmods.dev/badge/skills/pedromneto97/custom-skills/flutter-data-layer/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/pedromneto97/custom-skills/flutter-data-layer"><img src="https://agentmods.dev/badge/skills/pedromneto97/custom-skills/flutter-data-layer.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 | $0.00028 | $0.00295 |
| Opus 5.5 | $0.00011 | $0.00118 |
| Sonnet 5.5 | $0.00006 | $0.00059 |
| Haiku 4.5 | $0.00003 | $0.00030 |
Grade A, and why
flutter-data-layer 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 1mo 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.
What it actually says
Flutter Data Layer (summary)
Purpose: Short, opinionated defaults and pointers for implementing the data layer in a Flutter Clean Architecture app.
Defaults
- HTTP client: dio
- Serialization: json_serializable (codegen)
- Error handling: Only throw mapped/domain errors (example: 401 -> InvalidCredentialsException); rethrow unknown errors so callers can decide.
Details and examples are moved to the references/ docs and templates/ examples in this skill:
- Detailed repository & networking guidance: references/datasource.md
- Model & json_serializable guidance: references/model.md
- Working code templates: templates/
Rename guidance
- If an application only uses a remote source, prefer naming the component and folder
repository(and useRepositorysuffix) instead ofdatasource. Templates userepositoryfor that case.
Quick prompts
- "Scaffold a
Usermodel usingjson_serializableand aUserRepositoryImplusingdiothat maps 401 -> invalid credentials." - "Generate DTO tests:
fromJson,toJson, andtoEntity()round-trip forUserResponse."
What ships with it
5 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.
- 1mo ago First seen · 28 lines · 28 tokens per session scan A a8adc4f62caa
flutter-data-layer is a skill published in the GitHub repository pedromneto97/custom-skills (2 stars, last pushed 4mo ago), licensed MIT. It adds 28 tokens to every session and 295 once invoked, about $0.0001 per session on Opus 5.5. 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.
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