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 rodydavis/signals.dart --skill signals-lintgit clone --depth 1 https://github.com/rodydavis/signals.dartWrote 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/rodydavis/signals.dart/signals-lint)<a href="https://agentmods.dev/skills/rodydavis/signals.dart/signals-lint"><img src="https://agentmods.dev/badge/skills/rodydavis/signals.dart/signals-lint/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/rodydavis/signals.dart/signals-lint"><img src="https://agentmods.dev/badge/skills/rodydavis/signals.dart/signals-lint.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00021 | $0.00669 |
| Opus 5 | $0.00010 | $0.00334 |
| Sonnet 5 | $0.00004 | $0.00134 |
| Haiku 4.5 | $0.00002 | $0.00067 |
Grade A, and why
signals-lint 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 12d 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 — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.
signals_lint Tooling & Rules
This skill covers working with static code analysis, custom compiler warning diagnostics, and automated quick-fixes in the signals.dart ecosystem.
🚀 Activation & Setup
Ensure the plugin is active in your project to enable real-time IDE diagnostics and fixes:
# pubspec.yaml
dev_dependencies:
custom_lint: ^0.8.1
signals_lint: ^7.0.0
# analysis_options.yaml
analyzer:
plugins:
- custom_lint
🛡️ Lint Rules Reference
1. signals_avoid_create_in_build_method
Flags instances where a signal or computed variable is created inside a Flutter build method.
- Problem: Creating state during build causes state to reset on every rebuild.
- Solution: Move the creation to the class fields or initialize inside a state lifecycle hook.
2. signals_avoid_deprecated_watch_extension
Flags uses of deprecated BuildContext.watch() and BuildContext.unwatch() extensions.
- Problem: Watch extensions can cause broad stateful widget lifecycle overhead.
- Solution: Use localized
SignalBuilderor inherit fromSignalWidget/SignalStatefulWidget.
3. signals_avoid_deprecated_signals_mixin
Flags usage of deprecated with SignalsMixin mixins on StatefulWidget states.
- Problem: Inherits stateful widget tracking hooks unnecessarily.
- Solution: Inherit from
SignalStatefulWidgetinstead.
4. signals_prefer_named_builder
Enforces named builder: callbacks in SignalBuilder and Watch elements instead of positional arguments.
- Reason: Guarantees standard API parameters and readability.
5. signals_prefer_unified_options
Flags direct creator configuration arguments (e.g. autoDispose: true).
- Solution: Bundle configuration properties under unified options classes (e.g.,
options: SignalOptions(autoDispose: true)).
💡 Automated IDE Code Assists (Quick-fixes)
Place your cursor on the relevant class name or widget instantiation inside your IDE to reveal these automatic assists via the quick-fix menu (Cmd+. or Alt+Enter):
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.
- 12d ago First seen · 76 lines · 21 tokens per session scan A 762a98206009
signals-lint is a skill published in the GitHub repository rodydavis/signals.dart (814 stars, last pushed 3d ago), licensed Apache-2.0. It adds 21 tokens to every session and 669 once invoked, about $0.0001 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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