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 ariaramin/flutter-skills --skill flutter-svg-engineeringgit clone --depth 1 https://github.com/ariaramin/flutter-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/ariaramin/flutter-skills/flutter-svg-engineering)<a href="https://agentmods.dev/skills/ariaramin/flutter-skills/flutter-svg-engineering"><img src="https://agentmods.dev/badge/skills/ariaramin/flutter-skills/flutter-svg-engineering/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/ariaramin/flutter-skills/flutter-svg-engineering"><img src="https://agentmods.dev/badge/skills/ariaramin/flutter-skills/flutter-svg-engineering.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 | $0.00128 | $0.04778 |
| Opus 5.5 | $0.00051 | $0.01911 |
| Sonnet 5.5 | $0.00026 | $0.00956 |
| Haiku 4.5 | $0.00013 | $0.00478 |
Grade A, and why
flutter-svg-engineering 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 6d 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 — 471 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Flutter SVG Engineering
Use this skill to make SVG decisions from source ownership, visual semantics, layout constraints, cache identity, runtime cost, and trust boundaries—not from the .svg extension alone.
Operating rules
- Inspect the repository before changing SVG code: Flutter SDK,
flutter_svg,vector_graphics, compiler/runtime versions, platform targets, asset declarations, wrappers, tests, and existing network/cache layers. - Decide whether SVG is the correct rendering format before adding
SvgPicture. - Prefer
Iconfor equivalent standard Flutter iconography. - Prefer bundled assets for stable application artwork tied to the app release.
- Keep SVG rendering in the presentation layer; state/domain code should expose semantic state, asset identity, URL, or validated bytes—not Flutter widgets.
- Use current
SvgPicture/loader APIs and remove deprecated picture-cache/color-era APIs during migrations. - Give icons explicit dimensions and constrain asynchronous/dynamic vectors so loading cannot destabilize layout.
- Choose
BoxFit, alignment, clipping, and RTL mirroring from visual semantics, not defaults copied from another asset. - Use
ColorFilterfor intentional whole-picture tinting,ColorMapperfor selective source-aware recoloring, andSvgThemefor SVG-authored theme-relative values such ascurrentColor. - Preserve multicolor artwork unless the design explicitly calls for a monochrome treatment.
- Provide one accessible meaning for meaningful artwork; exclude decorative artwork from semantics.
- Treat source-byte/HTTP caching, compiled-vector caching, and live rendered-picture reuse as separate layers.
- Keep source, theme, loader, and mapper identity stable when cache reuse matters.
- Never claim
SvgPicture.networkprovides a complete persistent HTTP/offline cache policy. - Use an application network layer before
SvgPicture.memorywhen remote SVG needs authentication, retries, cancellation, status/content validation, persistent caching, telemetry, or input limits. - Treat remote/user SVG as untrusted input.
flutter_svgis a renderer/compiler pipeline, not a sanitizer. - Do not enable
allowDrawingOutsideViewBoxglobally to compensate for malformed assets. - Profile complex or repeated SVGs in profile/release-like conditions before selecting precompilation, raster rendering, or raster-image replacement.
- Precompile
.veconly when runtime SVG parse/compile cost is measurable or strategically important. - Keep
.veccompiler/runtime versions compatible and retain SVG as the maintainable source of truth. - Use
RenderingStrategy.rasteronly after profiling shows vector painting is expensive and display scale is sufficiently stable; validate memory and pixel quality. - Do not precache every vector. Warm only likely, latency-sensitive artwork with measured first-use cost.
- Use golden tests for visually sensitive upgrades, exporter changes, color-mapping changes, fit changes, RTL changes, and rendering-strategy changes.
- Preserve correctness, semantics, visual fidelity, and platform behavior before performance micro-optimizations.
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.
- 6d ago First seen · 471 lines · 128 tokens per session scan A 005aa5c84d22
flutter-svg-engineering is a skill published in the GitHub repository ariaramin/flutter-skills (6 stars, last pushed 7d ago), licensed MIT. It adds 128 tokens to every session and 4,778 once invoked, about $0.0005 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 2026-10-11.
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