Reverse Skill is a routing package for AI coding agents that selects appropriate reverse-engineering, penetration-testing, and security-research methods and tools for a given target. It is used for tasks involving APKs, binaries, frontend JavaScript, packet captures, CTF challenges, and authorized penetration testing. Its catalogue add-ons provide the skills and instructions that guide these workflows.
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 skills add zhaoxuya520/reverse-skill --skill diagram-generatorgit clone --depth 1 https://github.com/zhaoxuya520/reverse-skillWrote 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/zhaoxuya520/reverse-skill/diagram-generator)<a href="https://agentmods.dev/skills/zhaoxuya520/reverse-skill/diagram-generator"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/diagram-generator/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/skills/zhaoxuya520/reverse-skill/diagram-generator"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/diagram-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00118 | $0.02221 |
| Opus 5.5 | $0.00047 | $0.00888 |
| Sonnet 5.5 | $0.00024 | $0.00444 |
| Haiku 4.5 | $0.00012 | $0.00222 |
Grade A, and why
diagram-generator 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 2mo 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.
Copies of this mod
4 near-identical copies found in the catalogue:
- diagram-generator — 100% identical, 0 lines differ
- diagram-generator — 100% identical, 0 lines differ
- diagram-generator — 97% identical, 17 lines differ
- diagram-generator — 91% identical, 60 lines differ
How it starts
The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Diagram Generator
ACTION REQUIRED（读完后立刻执行）
NOW：确认当前任务是否命中本 skill 的适用范围NOW：读取../tool-index.md，校验工具可用性和实际路径NEXT：缺工具时调用 bootstrap，不要猜路径ACT：进入"工作流"第一步并执行，不要停在确认状态
Purpose
Create clear, editable diagrams from messy or structured inputs. Prefer text-based diagram source first so the result can be reviewed, versioned, and refined. Render to files only when the user asks for an image/PDF or when a downloadable artifact would materially help.
Default workflow
- Identify the user's intent, audience, and source material.
- Choose the diagram family and language using the decision table below.
- Normalize entities, relationships, labels, states, branches, and time/order information before writing diagram code.
- Generate concise, readable diagram source.
- Validate the syntax mentally and, when creating files, run
scripts/render_diagram.py. - Return the diagram source plus a short note about assumptions. When files are generated, include links to the output files.
Do not over-ask for clarification. If the request is underspecified, make reasonable assumptions and label them briefly.
Diagram language decision table
Use Mermaid unless another language is clearly better.
| User wants | Prefer | Why |
|---|---|---|
| process flow, decision tree, simple swimlane | Mermaid flowchart | readable and easy to paste into Markdown |
| sequence of system/user interactions | Mermaid sequenceDiagram or PlantUML sequence | Mermaid for docs; PlantUML for UML formality |
| lifecycle, state machine, transitions | Mermaid stateDiagram-v2 or PlantUML state | compact transition syntax |
| database schema, entities, relationships | Mermaid erDiagram | portable ER notation |
| class/interface/object model | Mermaid classDiagram or PlantUML class | Mermaid for docs; PlantUML for detailed UML |
| project schedule | Mermaid gantt | concise timeline syntax |
| hierarchy, ideas, notes | Mermaid mindmap | good default for idea maps |
| customer/product journey | Mermaid journey | built-in journey notation |
| git history | Mermaid gitGraph | built-in git notation |
| dependency graph, package graph, large network | Graphviz DOT | better layout engines for dense graphs |
| architecture with layers, clusters, boundaries | Mermaid flowchart with subgraphs, Graphviz clusters, or PlantUML C4-style | choose based on requested fidelity |
| weighted flow/sankey-like relationship | Mermaid sankey-beta when supported, otherwise SVG or Graphviz | Mermaid support may vary by renderer |
| custom visual where source languages fit poorly | SVG | precise control over layout and styling |
What ships with it
5 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.
- 2mo ago First seen · 189 lines · 118 tokens per session scan A ed02e5d9f08d
diagram-generator is a skill published in the GitHub repository zhaoxuya520/reverse-skill (44,165 stars, last pushed 1mo ago), licensed MIT. It adds 118 tokens to every session and 2,221 once invoked, about $0.0005 per session on Opus 5.5. 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.
diagram-generator compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| diagram-generatorzhaoxuya520/reverse-skill | Skill | 44k | 1mo ago | MIT | A | 118 | Codex |
| webgl-holographic-foilnexu-io/open-design | Skill | 106k | yesterday | Apache-2.0 | A | 41 | Claude Code, Codex |
| html-ppt-hermes-cyber-terminalnexu-io/open-design | Skill | 106k | yesterday | Apache-2.0 | A | 53 | Claude Code, Codex |
| html-ppt-taste-brutalistnexu-io/open-design | Skill | 106k | yesterday | Apache-2.0 | A | 78 | Claude Code, Codex |
| visual-ralphYeachan-Heo/oh-my-codex | Skill | 34k | 3d ago | MIT | A | 52 | Codex |
| glance-canonical-layoutsandroid/skills | Skill | 10k | yesterday | Apache-2.0 | A | 56 | Claude Code |
| accessibilitymicrosoft/hve-core | Skill | 1.6k | yesterday | MIT | A | 47 | Claude Code |