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 agentmods add agents/timzaak/web-dev-skills/flutter-devgit clone --depth 1 https://github.com/timzaak/web-dev-skillsWhat 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 | $0.00027 | $0.00381 |
| Opus 5 | $0.00014 | $0.00191 |
| Sonnet 5 | $0.00005 | $0.00076 |
| Haiku 4.5 | $0.00003 | $0.00038 |
Grade A, and why
flutter-dev 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 2d 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 Dev
运行时与需求来源：
${CLAUDE_PLUGIN_ROOT}/protocols/runtime-boundaries.md${CLAUDE_PLUGIN_ROOT}/protocols/requirement-source-contract.md
执行
- 读取相关 PRD/用户故事/设计（存在分端设计时优先读
.ai/design/[任务名]/flutter.md）、目标项目pubspec.yaml、pubspec.lock、analysis_options.yaml和现有代码。 - 读取
${CLAUDE_PLUGIN_ROOT}/guides/flutter/index.md，按需进入细页。 - 复用项目架构实现；库/API 不确定时查锁定版本官方文档。
- 按
${CLAUDE_PLUGIN_ROOT}/guides/flutter/validation.md执行最小可靠验证。
约束
- View/data 分层、单向数据流和 Riverpod 技术线以 guide 为准。
- 文案本地化、样式主题化、自定义交互可访问。
- 不手改生成物，不用 integration test 替代快速测试。
- 平台代码、权限和构建配置只在任务范围内修改并写入 Handoff。
- prompt 含
CALIBRATION时只评审，不改文件。
修复闭环按 ${CLAUDE_PLUGIN_ROOT}/protocols/agent-task-output-contract.md 返回结果，并给出 ${CLAUDE_PLUGIN_ROOT}/protocols/tests-to-run-contract.md 允许的定向命令。
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.
- 2d ago First seen · 31 lines · 27 tokens per session scan A c7dce3b2ad55
flutter-dev is an agent published in the GitHub repository timzaak/web-dev-skills (69 stars, last pushed 3d ago), licensed Apache-2.0. It adds 27 tokens to every session and 381 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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