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-fluttergit 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-flutter)<a href="https://agentmods.dev/skills/rodydavis/signals.dart/signals-flutter"><img src="https://agentmods.dev/badge/skills/rodydavis/signals.dart/signals-flutter/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-flutter"><img src="https://agentmods.dev/badge/skills/rodydavis/signals.dart/signals-flutter.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 | $0.00016 | $0.01645 |
| Opus 5 | $0.00008 | $0.00822 |
| Sonnet 5 | $0.00003 | $0.00329 |
| Haiku 4.5 | $0.00002 | $0.00164 |
Grade A, and why
signals-flutter 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 — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Flutter Reactive Signals Integration
This skill covers optimizing Flutter UI bindings, element-level reactive tracking, and high-frequency rendering utilizing the signals_flutter package.
Related Documentation & Items
Core Primitives
| Related File | Description |
|---|---|
| signal.md | Standard writeable reactive state primitive containing value accessors, mutation mechanics, and basic custom options. |
| computed.md | Lazy, memoized read-only derived state signal tracking reactive dependencies dynamically. |
| effect.md | Synchronous observer managing active subscription loops, dynamic dependency updates, and lifecycle teardown. |
| readonly.md | Read-only signal views ensuring unidirectional data access flows. |
| batch.md | Transactional state mutation blocks optimizing reactive computations and preventing rendering/recompute churn. |
Asynchronous Operations
| Related File | Description |
|---|---|
| future_signal.md | Single-evaluation asynchronous future state representation resolving the double-evaluation issue. |
| stream_signal.md | Dynamic, lifecycle-safe, self-disposing stream listener mapping to async loading/data/error states. |
| async_signal.md | Unifying async state container mapping loading, success data, and failure error states cleanly. |
| computed_async.md | Composable asynchronous operations built over reactive signals with active race condition protection. |
| computed_from.md | State aggregator signal merging multiple async signals into a single unified result. |
Reactive Collections
| Related File | Description |
|---|---|
| list_signal.md | Optimized list wrapper proxying standard operations to support element-level reactivity. |
| set_signal.md | Custom set wrapper ignoring duplicates and notifying on unique mutations. |
| map_signal.md | Granular map wrapper supporting isolated dictionary element lookup triggers. |
| iterable_signal.md | Iterable wrapper mapping custom lazy traversals to dynamic subscription layers. |
| queue_signal.md | Double-ended queue wrapper supporting optimized reactive pipeline structures. |
What ships with it
31 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.
- async/async_signal.md 982 B
- async/computed_async.md 731 B
- async/computed_from.md 750 B
- async/CONTEXT.md 2.3 KB
- async/future_signal.md 915 B
- async/stream_signal.md 745 B
- collections/CONTEXT.md 2.2 KB
- collections/iterable_signal.md 431 B
- collections/list_signal.md 793 B
- collections/map_signal.md 526 B
- collections/queue_signal.md 478 B
- collections/set_signal.md 471 B
- CONTEXT.md 3.3 KB
- core/batch.md 816 B
- core/computed.md 1.5 KB
- core/CONTEXT.md 2.5 KB
- core/effect.md 895 B
- core/readonly.md 952 B
- core/signal.md 1.4 KB
- extensions/CONTEXT.md 1.2 KB
- extensions/watch.md 694 B
- utils/connect.md 556 B
- utils/CONTEXT.md 2.0 KB
- utils/linked_signal.md 1.1 KB
- utils/timer_signal.md 504 B
- utils/tracked_signal.md 617 B
- widgets/CONTEXT.md 1.8 KB
- widgets/signal_builder.md 880 B
- widgets/signal_custom_paint.md 1.0 KB
- widgets/signal_effect.md 1022 B
- widgets/signal_widget.md 797 B
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 · 184 lines · 16 tokens per session scan A f7b87798a0e1
signals-flutter is a skill published in the GitHub repository rodydavis/signals.dart (814 stars, last pushed yesterday), licensed Apache-2.0. It adds 16 tokens to every session and 1,645 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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