Borrowing it
Nothing to install: this file belongs to T8mars/T8-penguin-canvas. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/T8mars/T8-penguin-canvas/main/AGENTS.mdgit clone --depth 1 https://github.com/T8mars/T8-penguin-canvasWrote 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/instructions/t8mars/t8-penguin-canvas/agents-md)<a href="https://agentmods.dev/instructions/t8mars/t8-penguin-canvas/agents-md"><img src="https://agentmods.dev/badge/instructions/t8mars/t8-penguin-canvas/agents-md/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/instructions/t8mars/t8-penguin-canvas/agents-md"><img src="https://agentmods.dev/badge/instructions/t8mars/t8-penguin-canvas/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01652 | $0.01652 |
| Opus 5 | $0.00826 | $0.00826 |
| Sonnet 5 | $0.00330 | $0.00330 |
| Haiku 4.5 | $0.00165 | $0.00165 |
Grade A, and why
T8-penguin-canvas 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 10d 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 — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.
T8-penguin-canvas 工作约束
在修改代码、架构、配置、测试、UI、部署、GitHub 或技术文档前，完整阅读本文件、SKILL.md、features.json、roadmap.md、package.json、相关源码/测试，以及当前交接记录。项目没有 meta.json。
当前权威开发路径
- 用户已明确决定恢复简单工作流：
E:\PenguinPravite\T8-penguin-canvas是唯一默认开发目录，当前分支为codex/vibex-workbench-node。后续代码修改、开发运行、测试与本地提交都直接在这里进行。 - merge commit 的第一父提交是 core checkpoint
4e3061094014b5dc2720d52ed178a62e8469a9d3，第二父提交是 release/F2 checkpointe0c6679b5a22539dd5b4983165ecc3f9d5c790e1。 E:\PenguinPravite\T8-penguin-canvas的codex/vibex-workbench-node已无损采用双父语义 merge commit68b5f72526a7272cc9787f6fda8b27a6f2fb54c8及后续修复；F2 与 core 的代码已经统一。E:\PenguinPravite\T8-penguin-canvas-dev-integration-f2-core-20260720只保留为已完成集成的历史参考，不再作为必需开发入口，也不要在两个目录同时修改同一功能。E:\PenguinPravite\T8-penguin-canvas-release-2.5.7继续冻结，不得在任何 release 命名路径开发。- release/F2 的旧
T8_ALLOW_LEGACY_F2_WORKTREE=1例外已随 HEAD 从9b6f6a4...移动到 checkpoint 而永久失效；这只用于继续阻止在旧 release 目录开发，不限制 canonical core。 - canonical core 的
npm run worktree:core与npm run worktree:development都必须通过；T8-penguin-canvas-dev-*仍可在特殊隔离任务中使用，但不是默认要求。release 路径必须拒绝 development。
永久保护
- 禁止
reset、clean、checkout 覆盖、整树复制、整树 ours/theirs 或任何丢弃本地修改的操作。 - 不得编辑或暂存源/core 工作树中的
tools/ffmpeg-runtime/ffmpeg.exe（143,314,432 bytes，SHA-256754A10CE2FC4A8C974FF492B351F58C02D35124D1D602FCF30F561FB1BD0F579）。 - 不得编辑或暂存源/core 工作树中的
tools/remove-ai-watermarks-runtime/README.md（2,298 bytes，SHA-25604F13F0ADBB8593372FB9DDFA297A0DFB90D9EAD0325DE0CD340FCFE8B7CED56）。 - 不得读取 retained/historical 项目数据库；数据库测试只能创建在系统临时目录并在测试后清理。
- 用户明确要求的日常开发可在 core 内修改、测试并按精确文件范围提交；版本升级、生产 build/打包、推送、tag 和 GitHub Release 仍须单独明确授权。未来正式包只构建一次。
产品版本号规则
- 本项目使用用户指定的十进制展示序列：每一段只使用
0-9。v2.6.9的下一正式版本必须是v2.7.0，禁止创建、打包、推送、打 tag 或发布v2.6.10。 - 当前正式版本为
v2.7.3；v2.7.3 Tag 固定指向安装包对应源码3aeb1c4ad69bf8ab7f436a88473f4b27ef2e1f8e，不得移动。该版本已完成唯一一次正式 Electron/NSIS 构建、GitHub Latest Release、自动更新资产与远端完整回下载校验；后续仅追加发布事实的main提交不得移动 Tag。改版本前必须同时核对package.json、package-lock.json、README、features.json、项目SKILL.md、release notes、自动更新元数据与 Git tag，不能只修改单个文件。
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.
- 10d ago First seen · 49 lines · 1,652 tokens per session scan A 11cabbe08f38
T8-penguin-canvas AGENTS.md is an instructions file published in the GitHub repository T8mars/T8-penguin-canvas (537 stars, last pushed 5d ago), licensed MIT. It adds 1,652 tokens to every session, about $0.0083 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
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vscode oss-third-party-notices.instructions.md
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