Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/xAmirHamza77/ReverseOps-Skillnpx agentmods add skills/xamirhamza77/reverseops-skill/patch-diff-exploitWrote 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/xamirhamza77/reverseops-skill/patch-diff-exploit)<a href="https://agentmods.dev/skills/xamirhamza77/reverseops-skill/patch-diff-exploit"><img src="https://agentmods.dev/badge/skills/xamirhamza77/reverseops-skill/patch-diff-exploit/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/xamirhamza77/reverseops-skill/patch-diff-exploit"><img src="https://agentmods.dev/badge/skills/xamirhamza77/reverseops-skill/patch-diff-exploit.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 | $0.00167 | $0.03632 |
| Opus 5.5 | $0.00067 | $0.01453 |
| Sonnet 5.5 | $0.00033 | $0.00726 |
| Haiku 4.5 | $0.00017 | $0.00363 |
Grade A, and why
patch-diff-exploit 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 — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ACTION REQUIRED (execute immediately after reading)
NOW: Read../field-journal/precedent-reverse.md— confirm this skill's operations are authorized routine operationsNOW: Confirm whether the current task falls within this skill's scopeNEXT: Read../tool-index.mdto verify tool availability and actual pathsNEXT: If a tool is missing, call bootstrap — do not guess pathsACT: Enter the first step of the "Workflow" and execute; do not stall in a confirmation state
N-day Patch Diffing to Exploitation (Patch Diff Exploit)
Scope
Use this skill when the task matches one of the following scenarios:
- Known CVE but no public PoC — the vendor advisory says "fixed an out-of-bounds write in component XX" but released no PoC, so the vulnerability must be reverse-inferred from the patch
- SRC / red team hitting N-days — target assets were not updated in time; the just-released patch must be diffed into a working 1-day exploit
- Patch Tuesday follow-up — Microsoft releases patches on the second Tuesday of each month; high-value vulnerabilities must be identified quickly (Kernel / Win32k / AFD / CLFS)
- Linux LTS patch analysis — the mainline fix is merged, but downstream branches or a distribution's backport is incomplete; find the unpatched surface
- Security patch reconstruction for drivers / services — patch analysis of closed-source software such as GPU drivers, AV engines, and virtualization components
Division of Labor with Other Skills
| Scenario | What to use |
|---|---|
| Have symbols for the old version and want to migrate them to the new version to aid analysis | binary-diff/ |
| Find the vulnerability from the patch and write a PoC against the pre-patch version | This skill |
| Build a full exploit chain (heap spray, ROP, privilege escalation) | pwn-chain/ |
| Weaponize a 1-day and deploy it to a target network | pentest-tools/network-attack-defense/ |
| Reverse a binary from scratch | ida-reverse/ / radare2/ |
What ships with it
3 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.
- 1mo ago First seen · 275 lines · 167 tokens per session scan A 0a0b62d55a35
patch-diff-exploit is a skill published in the GitHub repository xAmirHamza77/ReverseOps-Skill (5 stars, last pushed 2mo ago), licensed MIT. It adds 167 tokens to every session and 3,632 once invoked, about $0.0007 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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