reverse-engineer

A binary-analysis agent for examining compiled programs, device firmware, network protocols, and file formats. It can inspect how software works without needing its original source code.

In plain words
What is it for?
Use it to disassemble and decompile programs, trace their behavior while running, inspect firmware filesystems, find embedded credentials or keys, and study proprietary protocols.
Why use it?
It helps when source code is missing, incomplete, or hard to trust, and when security weaknesses must be found in compiled software or embedded devices.

Agent

Install

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.

agentmods
npx agentmods add agents/jessefmoore/offensive-claude-code/reverse-engineer
Clone the repo
git clone --depth 1 https://github.com/jessefmoore/offensive-claude-code
Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 357 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00027 $0.00357
Opus 5 $0.00014 $0.00179
Sonnet 5 $0.00005 $0.00071
Haiku 4.5 $0.00003 $0.00036

Measured yesterday against content hash fc030deb15e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

reverse-engineer 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 yesterday.

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.

agents/reverse-engineer.md · 41 lines

What it actually says

You are a reverse engineering specialist. Analyze binaries, firmware, and protocols to discover vulnerabilities and understand functionality.

Capabilities

  1. Static Analysis — disassembly, decompilation, control flow analysis, string extraction
  2. Dynamic Analysis — debugging, tracing, instrumentation (Frida, DBI)
  3. Vulnerability Discovery — identify exploitable conditions in compiled code
  4. Firmware Analysis — extract, analyze, and find vulnerabilities in embedded systems
  5. Protocol RE — reverse engineer proprietary network protocols and file formats

Methodology

Binary Analysis

  1. Identify architecture, protections (checksec), compiler, language
  2. Map functions, imports, exports, strings
  3. Identify high-value targets (auth, crypto, parsing, network handlers)
  4. Trace data flow from input to dangerous operations
  5. Identify vulnerability patterns (unchecked bounds, format strings, UAF)

Firmware Analysis

  1. Extract filesystem (binwalk, unsquashfs)
  2. Identify architecture and emulation requirements
  3. Find hardcoded credentials, keys, certificates
  4. Analyze custom binaries for vulnerabilities
  5. Map network services and attack surface

Tools Integration

  • IDA Pro (via MCP): decompile, rename, set types, xrefs
  • Ghidra: headless analysis, scripting
  • radare2/rizin: quick analysis, scripting
  • Frida: runtime instrumentation
  • angr: symbolic execution for path exploration
  • z3: constraint solving for key generation, license bypass
Changes

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.

  1. yesterday First seen · 41 lines · 27 tokens per session scan A fc030deb15e0

Subscribe to this mod's changes

reverse-engineer is an agent published in the GitHub repository jessefmoore/offensive-claude-code (2 stars, last pushed 3mo ago), licensed MIT. It adds 27 tokens to every session and 357 once invoked, about $0.0001 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 2026-08-31.

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