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 Pixel-Process-UG/superkit-agents --skill reverse-engineering-specsgit clone --depth 1 https://github.com/Pixel-Process-UG/superkit-agentsWrote 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/pixel-process-ug/superkit-agents/reverse-engineering-specs)<a href="https://agentmods.dev/skills/pixel-process-ug/superkit-agents/reverse-engineering-specs"><img src="https://agentmods.dev/badge/skills/pixel-process-ug/superkit-agents/reverse-engineering-specs/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/pixel-process-ug/superkit-agents/reverse-engineering-specs"><img src="https://agentmods.dev/badge/skills/pixel-process-ug/superkit-agents/reverse-engineering-specs.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 | $0.00040 | $0.02379 |
| Opus 5.5 | $0.00016 | $0.00952 |
| Sonnet 5.5 | $0.00008 | $0.00476 |
| Haiku 4.5 | $0.00004 | $0.00238 |
Grade A, and why
reverse-engineering-specs 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 1mo 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 — 240 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Reverse Engineering Specifications
Overview
For brownfield/legacy projects without documentation, this skill generates implementation-free specifications by exhaustively analyzing existing code. The output is a complete behavioral description that drives autonomous development on top of the existing codebase — enabling safe refactoring, feature addition, and modernization.
Key principle: Document actual behavior, including bugs. Bugs are "documented features" until explicitly marked for fixing.
This is a RIGID skill. Every code path must be traced. No assumptions, no skipping.
Phase 1: Exhaustive Code Investigation
[HARD-GATE] Every code path must be traced. No assumptions, no skipping.
Deploy parallel subagents via the Agent tool (up to 500, with subagent_type="Explore") to analyze:
| Analysis Target | What to Document | Priority |
|---|---|---|
| Entry points | All ways the system can be invoked (HTTP, CLI, events, cron) | P0 |
| Code paths | Every branch, loop, conditional, early return | P0 |
| Data flows | Input → transformation → output for every pipeline | P0 |
| State mutations | Every place state is read, written, or deleted | P0 |
| Error handling | Try/catch blocks, error codes, fallback behaviors | P0 |
| Side effects | External calls, file I/O, database writes, event emissions | P1 |
| Configuration | Environment variables, config files, feature flags | P1 |
| Dependencies | External services, libraries, APIs consumed | P1 |
| Concurrency | Async operations, race conditions, locking mechanisms | P2 |
| Implicit behavior | Convention-based routing, middleware chains, decorators | P2 |
Investigation Strategy Decision Table
| Codebase Size | Strategy | Subagent Count |
|---|---|---|
| Small (<50 files) | Single-pass full scan | 5-10 |
| Medium (50-500 files) | Module-by-module scan | 50-100 |
| Large (500+ files) | Entry-point-first, then depth scan | 200-500 |
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.
- 1mo ago First seen · 240 lines · 40 tokens per session scan A c1ac386b8512
reverse-engineering-specs is a skill published in the GitHub repository Pixel-Process-UG/superkit-agents (3 stars, last pushed 7mo ago), licensed MIT. It adds 40 tokens to every session and 2,379 once invoked, about $0.0002 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 2026-09-03.
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