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 skills/horizonrobotics/oe-skills/j6-plugin-graph-diffnpx skills add HorizonRobotics/OE-Skills --skill j6-plugin-graph-diffgit clone --depth 1 https://github.com/HorizonRobotics/OE-SkillsWrote 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/horizonrobotics/oe-skills/j6-plugin-graph-diff)<a href="https://agentmods.dev/skills/horizonrobotics/oe-skills/j6-plugin-graph-diff"><img src="https://agentmods.dev/badge/skills/horizonrobotics/oe-skills/j6-plugin-graph-diff.svg" alt="Measured on agentmods" 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 | $0.00050 | $0.04260 |
| Opus 5 | $0.00025 | $0.02130 |
| Sonnet 5 | $0.00010 | $0.00852 |
| Haiku 4.5 | $0.00005 | $0.00426 |
Grade A, and why
j6-plugin-graph-diff 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 6d 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 — 441 lines — stays where its author put it; the contents beside it link to each section on GitHub.
FX Graph 计算图对比与源码定位工具
强约束（必须遵守）
1) 必须调用外挂脚本，禁止 Agent 自行实现差异对比
本 Skill 的计算图差异对比必须通过调用外挂脚本 j6_plugin_graph_diff.py 完成，严禁 Agent 自己编写 Python 代码实现 diff 逻辑。
- ✅ 必须：通过 Bash 工具执行
python j6-plugin-graph-diff/j6_plugin_graph_diff.py --file1 ... --file2 ... - ❌ 禁止：Agent 自行编写 difflib/正则匹配等代码来解析计算图
- ❌ 禁止：用 Bash 的 diff 命令替代外挂脚本
- ❌ 禁止：用 Read 工具读取两个文件后自行比较
原因：外挂脚本包含完整的 FX Graph 解析逻辑（节点解析、差异分类、相似度计算等），Agent 自行实现容易遗漏格式兼容性、分类精度等问题。
2) 外挂脚本调用前必须确认文件存在
在调用脚本前，Agent 必须确认两个输入文件路径存在且可读，避免脚本执行失败。
3) 脚本路径
外挂脚本位于：j6-plugin-graph-diff/j6_plugin_graph_diff.py
调用时使用相对路径：
python j6-plugin-graph-diff/j6_plugin_graph_diff.py --file1 <path1> --file2 <path2> -o <output_path>
目标
对比两份 FX Graph 计算图文件（例如评测与导出、训练与推理、不同版本之间的计算图），实现：
- 精确识别计算图差异：找出第一个不一致点、所有差异块（由外挂脚本完成）
- 差异分类统计：按差异类型（算子变化、参数变化、结构变化）进行分类
- 源码反向定位：根据 diff 报告，由 Agent 分析并将差异映射回原始模型代码位置
职责分工
本 Skill 采用外挂脚本 + Agent 分析的分工模式：
| 组件 | 职责 | 输入 | 输出 |
|---|---|---|---|
外挂脚本 j6_plugin_graph_diff.py |
计算图差异对比 | 两个 FX Graph 文件 | diff 报告（文本格式） |
| Agent Skill | 源码定位与分析 | diff 报告 + 模型源码 | 源码位置、修复建议 |
重要：Agent 不得自行实现外挂脚本的职责。差异对比必须调用外挂脚本，Agent 只负责解读脚本输出并进行源码定位。
外挂脚本职责（j6_plugin_graph_diff.py）
外挂脚本只负责计算图层面的差异对比，不涉及源码分析：
- ✅ 解析两个 FX Graph 文件
- ✅ 找出第一个差异点
- ✅ 找出所有差异块
- ✅ 对差异进行分类（operator_change / parameter_change / structure_change）
- ✅ 计算相似度
- ✅ 生成结构化 diff 报告
- ❌ 不负责源码反向定位
Agent Skill 职责
Agent 负责根据 diff 报告进行源码定位和问题分析：
- ✅ 调用外挂脚本生成 diff 报告
- ✅ 分析 diff 报告，理解差异内容
- ✅ 根据差异节点信息，在模型源码中搜索对应位置
- ✅ 提供源码上下文和修复建议
- ✅ 判断差异是否预期（结合用户提供的场景说明）
适用范围
本 Skill 适用于以下场景：
- 评测与导出对比：对比模型评测和导出阶段的计算图差异
- 训练与推理对比：对比训练模式和推理模式的计算图差异
- 版本对比：对比不同版本模型的结构变化
- 调试定位：快速定位计算图异常点，并映射回源码
核心能力
1. 计算图差异识别（外挂脚本）
- ✅ 识别算子类型变化（如
torch.relu→torch.leaky_relu） - ✅ 识别算子参数变化（如
args=(x, 1)→args=(x, 0.5)） - ✅ 识别结构变化（如新增/删除节点、改变连接关系）
2. 源码反向定位（Agent Skill）
- ✅ 解析 diff 报告，提取关键差异节点
- ✅ 在模型源码中搜索对应的操作（如模块名、函数名）
- ✅ 匹配 forward 函数中的调用位置
- ✅ 提供代码上下文（前后 N 行）便于理解
- ✅ 判断差异是否符合预期场景
What ships with it
2 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.
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.
- 6d ago First seen · 441 lines · 50 tokens per session scan A cccef061e39d
j6-plugin-graph-diff is a skill published in the GitHub repository HorizonRobotics/OE-Skills (19 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 50 tokens to every session and 4,260 once invoked, about $0.0003 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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