--- name: frontend-runtime-guardrails-318b09e261f9 description: Use when adding, refactoring, or reviewing frontend runtime behavior in this repository, especially visualizers, lyrics animation, Framer Motion usage, useMotionValueEvent, requestAnimationFrame, ResizeObserver, high CPU reports, jank, per-character or per-frame animation, React state update frequency, and performance-sensitive UI paths. --- # Frontend Runtime Guardrails ## Purpose 这个 skill 用于在前端运行时敏感路径中保持低 CPU、低重渲染和稳定时序，尤其是歌词 visualizer、全屏播放、预览面板和动画密集组件。 核心目标： - 区分“离散 UI 状态”和“逐帧运动数据” - 复用现有 visualizer 的运行时模式 - 保持歌词时序、排版和动画之间的边界清晰 - 在代码进入 React render path 前检查性能风险 ## First Pass 开始写或审查前，先快速定位这次改动属于哪类路径： - 普通 UI 状态：可以用 `useState`，但仍要避免无意义重复更新。 - 歌词时序状态：优先使用离散状态，例如 `waiting | active | passed`。 - 播放中连续变化的运动值：优先使用 Framer Motion variants、MotionValue、CSS transition/keyframes、`useRef`、canvas 或 DOM 同步。 - 布局测量和缓存：优先使用 `useMemo`、`useRef`、`ResizeObserver`，并做缓存 key、尺寸变化和清理保护。 - 歌词解析、分词、时序映射：优先从 `types.ts`、`utils/lyrics/parserCore.ts` 和已有 lyrics utilities 理解数据真源。 ## Hard Rules ### React State 高频路径里不要无条件 `setState`： - `useMotionValueEvent(currentTime, 'change', ...)` - `requestAnimationFrame` callback - `ResizeObserver` callback - audio analyser / playback polling callback - pointer move / scroll / resize 高频事件 绝对禁止用高频 `useState`、store setter 或等价 React 更新去追踪“当前精确时间”。例如不要把 `currentTime.get()`、`audio.currentTime`、RAF 时间戳或 MotionValue 的每次变化写入 state 来驱动歌词、进度、逐字强度或动画相位。连续时间必须优先参考现有方案：`MotionValue` / `useTransform` / CSS 或 Framer Motion 动画 / canvas draw loop / `useRef` 保存瞬时值；只有当前行、播放状态、可见段落这类离散变化可以进入 React state。 如果必须在高频回调里更新 React state，必须满足至少一条： - 只更新离散状态，并先比较新旧值，例如 `current === next ? current : next` - 限流到明确的低频节奏 - 只在可见、active、mounted 且确实变化时更新 - 更新的是少量稳定标量，而不是按字、按词、按像素展开的数组或对象 不要把每帧变化的 `scale`、`opacity`、`transform`、坐标、逐字符强度数组放进 `useState`。这些更适合由 MotionValue、CSS、Framer Motion variants、canvas draw loop，或 `useRef` 驱动的非 React 渲染层处理。 ### Visualizer Patterns 优先参考现有模式： - `classic` / `partita`：每个词只持有 `waiting | active | passed` 这种粗粒度状态，状态变化时才 `setState`；入口都经过 `src/components/visualizer/registry.tsx`。 - `cappella`：字符数量和时间戳可进入 state，但 setter 需要做相等保护，只在计数真正变化时更新。 - `cadenza` / `fume`：重动画和高频渲染使用 refs、缓存、canvas、DOM overlay、RAF draw loop，而不是逐帧 React rerender。 - `claddagh`：用 `buildLineGraphemeTimeline` 保留逐字时间，使用 `pretext` 做字符间距测量，并在 `useLayoutEffect` 中直接写入有限数量 ring line 的 DOM 样式；中心线的音频响应由独立 RAF 驱动，必须清理订阅和 RAF。 - `diorama`：React Three Fiber / canvas 场景负责粒子、相机和光栅化文字；不要把每帧场景数据提升到 React state。 - `pendolo`：`PendoloClockworkCanvas`、timeline 和 bounded text layout 负责连续动画；React 只保留 tuning 与离散歌词切换。 - `sonnet`：`VisualizerSonnet` 负责 React 外壳，`createSonnetPixiRuntime` 与 `sonnet*` helpers 负责 Pixi director；销毁 Pixi runtime、纹理池和 RAF。 - `VisPlayground`：预览时间可以推进 MotionValue，但派生到 React state 时必须只更新当前行等低频状态。 共享运行时边界是 `VisualizerRenderer.tsx` -> `runtime.ts` / `registry.tsx` / `VisualizerShell.tsx`；它同时被 App、ThemePark、VisPlayground 和 OBS source 复用（宿主清单见 `src/components/visualizer/README.md` 的 Host surfaces）。新增模式应沿 `entry.tsx` registry 接入，不要在各宿主复制渲染分支。 所有 visualizer 的歌词和字幕字重都必须通过 `src/utils/fontStacks.ts` 的 `resolveThemeFontWeight(theme, modeFallback)` 获取。模式设计字重只能作为 fallback，不能用 `font-bold`、`font-medium`、固定内联 `fontWeight` 或字体规格中的硬编码数字覆盖用户设置。DOM、Canvas、pretext 和光栅化路径必须使用同一个最终字重。 新增 visualizer 时，先决定： - 这段动画是入场/离场动画，还是播放期间持续动画？ - 它需要 React 参与渲染吗，还是可以由 CSS/Motion/canvas 自己完成？ - 当前实现的每秒 React 更新次数大概是多少？ - 长歌词、重复歌词、CJK grapheme、移动端和 Electron 下是否仍然可接受？ ### Strict Constraint: Protect Project Comments - Keep all comments prefixed with `@note` exactly as they are. These comments mark critical annotations and must not be translated, shortened, modified, or removed. - If refactoring significantly changes the code structure, preserve these comments as close as possible to the code they are logically associated with. ### Lyrics Timing 歌词显示文本、布局单元和 `Line.words` 时序是三层不同数据。不要在 visualizer 里临时猜测它们之间的关系。 ### Visualizer Lyrics Contract 写 visualizer 时，把输入视为已经整理好的统一歌词对象，而不是原始歌词文本： - renderer 接收的是 `LyricData` / `Line` / `Word`，不直接处理 `.lrc`、`.vtt`、`yrc`、`qrc`。 - 不要把格式识别、翻译对齐、纯音乐判断、来源 adapter 逻辑塞回 visualizer。 - `Line` 是渲染最常用的单位；`Word` 是最小时间单位；`LyricData` 是整首歌。 - `currentLineIndex` 可能是 `-1`，`lines[currentLineIndex]` 可能不存在。 - `translation` 已经按行对齐，可能为空；底部字幕和下一句提示交给共享 overlay 处理。 处理 `fullText` 和 `words` 时要记住： - `fullText` 更接近整句展示文本，适合做整句布局。 - `words` 是歌词流水线产出的时间片段，粒度依来源和内容变化。 - `fullText` 不保证等于 `words.map(word => word.text).join('')`；空格、标点和 display text 可能不完全对齐。 - 标点很多时候会作为独立 `Word` 出现，需要 renderer 决定合并、跳过或特殊动画。 - 拉丁文本可能以整词进入 `Word`，例如英文或法文单词；字母级动画应在 renderer 内部基于 `word.text` 再拆分。 - 英文 contraction 或 sticky punctuation 可能需要用 `buildPostLyricLayoutUnits` / `buildDisplayWordsFromLayoutUnits`，不要临时手写拼接规则。 处理 `renderHints` 时要记住： - `renderHints` 是 visualizer 运行时契约的一部分，尤其影响短句、极短句、逐字 reveal、尾迹和退场。 - `line.endTime` 是安全边界：到达这里前，歌词主体必须已经展示完成；需要退场的模式也应默认能在这里完成或进入可截断状态。 - `renderHints.renderEndTime` 只是给尾迹、残影、退场特效的额外延长可能性，不是稳定可用时间。 - 大多数播放场景会在 `line.endTime` 或下一句开始时直接切到下一句；不要把核心 reveal、排版进入、关键信息展示依赖到 `renderEndTime` 之后。 - 需要清理尾迹或判断“最晚还可保留多久”时，才使用 `getLineRenderEndTime(line)`。 处理 segment/layout unit 到 words 的映射时，优先保留或计算明确范围： - 从分割函数返回 segment 的 `startOffset` / `endOffset` - 按前序 segment 累积 cursor - 用原始 `Line.words` 的字符范围做映射 - 对重复词、CJK、标点、空格和长句添加单测 任何歌词分割都必须保证： - `segments.map(s => s.text).join('') === fullText` - 空格、标点、CJK grapheme 不被意外丢失 - 重复片段不会复用错误时间 - parser 的词级 timing 仍然是动画时序真源 ### Layout And Measurement 测量、分词、排版和缓存应保持稳定： - 用 `useMemo` 缓存纯计算布局，依赖项必须能解释布局变化原因。 - 用 `useRef` 保存缓存 Map、RAF id、DOM node、上一次 frame 状态。 - `ResizeObserver` 里只在尺寸真实变化时 `setState`。 - 长文本测量和 `Intl.Segmenter` 结果不要在 render 中反复重算，除非文本很短且路径低频。 - cache key 必须包含影响布局的主题、字体、尺寸、tuning 和歌词内容。 - 字体相关 cache key、memo 依赖和测量规格必须包含 `resolveThemeFontWeight` 得到的最终字重；测量与实际 DOM / Canvas / 光栅化渲染不得使用不同字重。 - RAF / timeout / observer 必须在 effect cleanup 中释放。 ### Module Boundaries 遵守仓库职责边界；如果需要 README 背景，按 `readme-reference` 只读取相关片段： - visualizer 共享逻辑放 `components/visualizer/*` 的 runtime、registry、shell 或相邻 util。 - 一个模式的全部代码（entry、tuning、设置面板、渲染器、layout、只给它用的纯函数）放 `components/visualizer//`。当前有哪些模式看 `src/types/visualizerModes.ts` 的 `BUILTIN_VISUALIZER_MODES`，这里不抄清单。加一个模式的完整步骤见 `src/components/visualizer/README.md` 的“加一个歌词动画样式”。 - 背景实现放 `components/visualizer/backgrounds//`，清单是同一文件的 `BUILTIN_VISUALIZER_BACKGROUND_MODES`。 - 歌词解析真源看 `utils/lyrics/parserCore.ts`。 - 纯分词、layout、时序映射：只给一个模式用的放在那个模式的目录里；两个以上模式用到才放 `utils/lyrics/*`。都用单测覆盖。 - 共享类型先看 `types.ts`。 - 不要把新 visualizer 的设置、runtime、layout、测试辅助全部堆进单个超大组件；按 `file-modularization` 在模式目录里拆成几个文件。 ## Review Checklist 审查或实现性能敏感前端改动时，至少检查这些问题： - 是否存在高频回调里的无条件 `setState`？ - 是否把当前精确播放时间、RAF 时间戳或 MotionValue 的连续值写进 React state / store？ - 是否每帧创建新数组、新对象并进入 React state？ - 是否每个字符、每个词、每个 segment 都各自订阅同一个 MotionValue？ - `claddagh` 是否仍只渲染中心行附近的有限 ring line，字符测量是否命中有界缓存？ - 不可见或 inactive 元素是否仍在持续更新？ - 动画能否改成 CSS/Motion/canvas 驱动，而不是 React rerender？ - 重复文本、CJK、多空格和标点是否有测试？ - 单测通过是否只是放宽断言，而不是验证了目标行为？ - 变更是否需要 UI 截图测试或手动性能观察，而不只是 unit test？ - 新增缓存是否有失效条件，旧 DOM/canvas 节点是否会被清理？ - 歌词和字幕是否统一使用 `resolveThemeFontWeight`，且最终字重已进入测量规格、memo 依赖和布局缓存键？ - 是否存在会覆盖用户字重设置的 `font-bold`、`font-medium`、固定 `fontWeight` 或固定 Canvas / pretext 字体规格？ - 新增 visualizer 是否遵守 registry、runtime、shell、subtitle overlay 的既有结构？ ## Validation 按风险选择最小验证： - 纯歌词分割、时序映射、layout util：跑相关 Vitest 单测。 - visualizer 交互、样式、截图回归：按 `testing-strategy` 判断是否跑 Playwright UI。 - CPU、jank、逐帧动画：优先解释更新路径，并建议用浏览器 Performance 或 Electron 实测确认。 - 不要为了 visualizer 小改默认跑完整 build；先读 `testing-strategy`。 ## Red Flags 看到这些实现时要停下来重新设计： - `useMotionValueEvent`、RAF 或 observer 里每次回调都创建新引用并写入 state - 用 `useState`、store 或 reducer 每帧保存当前精确时间，再依赖 React rerender 推进动画 - 每个字符一个 React state 或每帧重建字符强度数组 - inactive segment 也持续写 state - 用字符串搜索推断歌词时序范围，却没有处理重复文本和 offset - render 阶段反复执行重型分词、测量、排序 - 测试断言比需求更宽，无法约束时序、分割或性能目标 - 新功能让已很大的 visualizer 文件继续膨胀，却没有拆 layout/util/hook - cache key 漏掉主题、字体、窗口尺寸或 tuning，导致旧布局复用 - 歌词或字幕硬编码字重，或测量与实际渲染使用不同字重 --- Source attribution: chthollyphile Original project: https://github.com/chthollyphile/folia-major/blob/20c3ecd09a518e9c8d2d53c331c54a548bf9eebf/skills/frontend-runtime-guardrails/SKILL.md License: AGPL-3.0-only License information: https://www.gnu.org/licenses/agpl-3.0.html Original upstream instructions; downloaded from Mega AI Hub. ## Upstream license notice GNU AFFERO GENERAL PUBLIC LICENSE Version 3, 19 November 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM). The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network. Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying. 7. Additional Terms. "Additional permissions" are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions. When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission. Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms: a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or d) Limiting the use for publicity purposes of names of licensors or authors of the material; or e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors. All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying. If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms. Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way. 8. 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Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice. Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10. 9. Acceptance Not Required for Having Copies. You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so. 10. Automatic Licensing of Downstream Recipients. Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License. An "entity transaction" is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts. You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it. 11. Patents. A "contributor" is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's "contributor version". A contributor's "essential patent claims" are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, "control" includes the right to grant patent sublicenses in a manner consistent with the requirements of this License. Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version. In the following three paragraphs, a "patent license" is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To "grant" such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party. If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. "Knowingly relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid. If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it. A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007. Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law. 12. No Surrender of Others' Freedom. If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Remote Network Interaction; Use with the GNU General Public License. Notwithstanding any other provision of this License, if you modify the Program, your modified version must prominently offer all users interacting with it remotely through a computer network (if your version supports such interaction) an opportunity to receive the Corresponding Source of your version by providing access to the Corresponding Source from a network server at no charge, through some standard or customary means of facilitating copying of software. This Corresponding Source shall include the Corresponding Source for any work covered by version 3 of the GNU General Public License that is incorporated pursuant to the following paragraph. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the work with which it is combined will remain governed by version 3 of the GNU General Public License. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU Affero General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU Affero General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU Affero General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU Affero General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program. Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. Limitation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see . Also add information on how to contact you by electronic and paper mail. If your software can interact with users remotely through a computer network, you should also make sure that it provides a way for users to get its source. For example, if your program is a web application, its interface could display a "Source" link that leads users to an archive of the code. There are many ways you could offer source, and different solutions will be better for different programs; see section 13 for the specific requirements. You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU AGPL, see . # Mega AI Hub resource metadata Creator / publisher: chthollyphile Original project: https://github.com/chthollyphile/folia-major/blob/20c3ecd09a518e9c8d2d53c331c54a548bf9eebf/skills/frontend-runtime-guardrails/SKILL.md Attribution basis: Source repository record Fields of work: Design, Development & Engineering, Product Management Roles: Frontend Developer, Product Manager, UX Designer Specialties: API, Frontend Tools: Tool not specified Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: 953e43246b2cad738dd064f34df6e8d3b4ad79110eea1995e83eee7a1281b522