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 instructions/visactor/vchart/agents-mdgit clone --depth 1 https://github.com/VisActor/VChartWhat 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 | $0.00574 | $0.00574 |
| Opus 5 | $0.00287 | $0.00287 |
| Sonnet 5 | $0.00115 | $0.00115 |
| Haiku 4.5 | $0.00057 | $0.00057 |
Grade A, and why
VChart AGENTS.md 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 yesterday.
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
VChart 工程基准
VChart 是高性能可视化渲染库。工程取舍应优先面向正确、文档化的调用方式：快速的 render/update/release 路径、稳定可预期的 API，以及可用、易用的图表行为。
编码习惯
- 不要在热路径中加入大量宽泛的防御式兜底，除非它保护的是明确记录的公共 API 契约，或有真实兼容性需求支撑。
- 优先使用清晰契约，而不是静默归一化。内部非法状态应通过测试或边界校验暴露，不应被每个图元运行时 guard 隐藏。
- per-graphic 的 render/update/state 代码应尽量少分配、少分支。避免不必要的数组创建、对象重建、深比较、resolver 失效、状态清理或重复生命周期工作。
- 按 VRender API 的预期契约调用。除非存在明确的跨版本兼容理由，不要在 VChart 侧包一层本地兜底逻辑。
- 当项目已有标准工具、公共 API 或统一封装能表达同一行为时，必须优先收敛到标准写法；如果标准写法无法满足需求，应修正标准工具或上游契约，而不是在调用点维护多套等价或异化实现。暴露并修复标准路径问题，优先于用局部特例掩盖问题。
- 公共 API 边界要保持易用性，但内部路径不需要长期容忍非标准调用方。
- 性能是大数据与多图 dashboard 场景下的正确性维度。修改 render、update、state、animation、release 路径时，需要考虑 10k 图元和多 chart 页面。
- 测试应锁定有效用法下的预期行为。不要把偶然用法或不支持用法固化成兼容承诺，除非该行为已经被明确纳入 API。
文档规范
- 当前项目文档优先使用中文编写。
- 面向外部生态或已有多语言体系的文档，可按现有文档结构补充对应语言版本，但中文说明应优先完整、准确。
优先级
- 有效 spec 和文档化 API 下的正确渲染。
- render、update、interaction、animation、release 的高性能。
- 稳定且易用的公共调用方式。
- 最小化兼容性兜底，只在真实 API 承诺需要时引入。
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.
- yesterday First seen · 27 lines · 574 tokens per session scan A 55c7d43dc009
VChart AGENTS.md is an instructions file published in the GitHub repository VisActor/VChart (1,834 stars, last pushed 7d ago), licensed MIT. It adds 574 tokens to every session, about $0.0029 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.
Other instructions, from other repositories
recharts AGENTS.md
Instructions for recharts/recharts: This is Recharts repository. Recharts is a React-based charting library. The goal is to provide a simple, declarative, and composable way to build charts. We value consistency, usability, and performance. Accessibility is important.
FableCut CLAUDE.md
Instructions for ronak-create/FableCut, covering fablecut — browser video editor, drivable by claude code, token-efficient editing (important for agents), where the files are, run and how claude code edits a video.
ShipSwift AGENTS.md
Instructions for signerlabs/ShipSwift, covering agents.md, project overview, directory structure, naming conventions and dependency rules.
FableCut AGENTS.md
Instructions for ronak-create/FableCut, covering working with fablecut, project constraints and mcp entry point.
builder CLAUDE.md
Claude Code instructions for revyme-web/builder, covering revyme - architecture & contribution guide, what revyme is, the core loop, the subsystems and five invariants.
frontend-kit AGENTS.md
AGENTS.md instructions for robcsaszar/frontend-kit, covering agents.md, mission, layout convention, judgment boundaries and adding a skill.