Borrowing it
Nothing to install: this file belongs to AsiaOstrich/EngramGraph. 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/AsiaOstrich/EngramGraph/main/.agents/skills/reverse-engineer/SKILL.mdgit clone --depth 1 https://github.com/AsiaOstrich/EngramGraphWrote 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/asiaostrich/engramgraph/reverse-engineer)<a href="https://agentmods.dev/skills/asiaostrich/engramgraph/reverse-engineer"><img src="https://agentmods.dev/badge/skills/asiaostrich/engramgraph/reverse-engineer/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/asiaostrich/engramgraph/reverse-engineer"><img src="https://agentmods.dev/badge/skills/asiaostrich/engramgraph/reverse-engineer.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 | $0.00113 | $0.02174 |
| Opus 5.5 | $0.00045 | $0.00870 |
| Sonnet 5.5 | $0.00023 | $0.00435 |
| Haiku 4.5 | $0.00011 | $0.00217 |
Grade A, and why
reverse 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 14d 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 — 162 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Reverse Engineering Assistant | 反向工程助手
System archeology framework: reverse engineer existing systems across three dimensions — Logic, Data, and Runtime.
系統考古框架：從三個維度反向工程既有系統——邏輯、資料、執行環境。
Three Dimensions | 三大維度
┌─────────────────────────────────────────────────────────┐
│ System Archeology Framework │
├──────────┬──────────────┬────────────────────────────────┤
│ Logic │ Data │ Runtime │
│ (spec) │ (data) │ (runtime) │
├──────────┼──────────────┼────────────────────────────────┤
│ APIs │ DB Schemas │ Logs & Error Patterns │
│ Modules │ ORMs/Models │ Config & Environment │
│ Flows │ Migrations │ Metrics & Performance │
│ Tests │ Seed Data │ Infra & Deployment │
└──────────┴──────────────┴────────────────────────────────┘
Subcommands | 子命令
| Subcommand | Dimension | Input | Output | 說明 |
|---|---|---|---|---|
| (none) | All | Project root | Full Archeology Report | 三維度全面分析 |
spec |
Logic | Code files/dirs | SPEC-XXX.md |
從程式碼提取規格 |
data |
Data | DB schemas, ORMs, migrations | Data Model Spec | 分析資料模型與結構 |
runtime |
Runtime | Logs, configs, metrics | Runtime Baseline | 分析執行環境基準 |
bdd |
— | SPEC-XXX.md |
.feature |
將 AC 轉為 Gherkin |
tdd |
— | .feature |
Coverage Report | 分析測試覆蓋率 |
Full Analysis Mode | 全面分析模式
When /reverse is invoked without a subcommand, execute all three dimensions sequentially:
- Data → Scan schemas, ORMs, migrations
- Runtime → Analyze logs, configs, deployment
- Logic (spec) → Extract APIs, flows, tests → Generate SPEC
Output: Integrated System Archeology Report combining all three dimensions.
Dimension Details | 維度詳情
spec: Logic Dimension (既有)
- Scan - Read source files and identify public APIs, data flows, and business logic
- Classify - Tag each finding as
[Confirmed],[Inferred], or[Unknown] - Structure - Organize into SDD spec format with Acceptance Criteria
- Attribute - Cite every reversed item with
file:linesource reference
What ships with it
4 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.
- 14d ago First seen · 162 lines · 113 tokens per session scan A eef74d72cdab
reverse is a skill published in the GitHub repository AsiaOstrich/EngramGraph (3 stars, last pushed today), licensed MIT. It adds 113 tokens to every session and 2,174 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 2026-10-16.
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