binary-analysis-patterns

binary-analysis-patterns is a skill for Claude Code, Codex from benjaminasterA/antigravity-awesome-skills. It costs 39 tokens per session (2,976 once invoked), scanned A, a copy of binary-analysis-patterns, MIT.

A guide to examining compiled programs, including disassembly, decompilation, control-flow analysis, and recognizing code patterns. Compiled programs are machine-readable files produced from source code.

In plain words
What is it for?
Use it to analyze executables, read assembly, reconstruct program logic, and trace how compiled code flows.
Why use it?
It helps developers understand software when the original source is unavailable or when they need to inspect how an executable works.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to analyze executables, read assembly, reconstruct program logic, and trace how compiled code flows.

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Install with agentmods
npx agentmods add skills/benjaminastera/antigravity-awesome-skills/binary-analysis-patterns
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.

Any agent
npx skills add benjaminasterA/antigravity-awesome-skills --skill binary-analysis-patterns
Clone the repo
git clone --depth 1 https://github.com/benjaminasterA/antigravity-awesome-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for binary-analysis-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/benjaminastera/antigravity-awesome-skills/binary-analysis-patterns/github.svg)](https://agentmods.dev/skills/benjaminastera/antigravity-awesome-skills/binary-analysis-patterns)
Your own site
<a href="https://agentmods.dev/skills/benjaminastera/antigravity-awesome-skills/binary-analysis-patterns"><img src="https://agentmods.dev/badge/skills/benjaminastera/antigravity-awesome-skills/binary-analysis-patterns/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.

agentmods 80×15 button for binary-analysis-patterns

Your own site · 80×15
<a href="https://agentmods.dev/skills/benjaminastera/antigravity-awesome-skills/binary-analysis-patterns"><img src="https://agentmods.dev/badge/skills/benjaminastera/antigravity-awesome-skills/binary-analysis-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,976 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 94% copy Near-identical to another mod 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 5.1 $0.00039 $0.02976
Opus 5 $0.00019 $0.01488
Sonnet 5 $0.00008 $0.00595
Haiku 4.5 $0.00004 $0.00298

Measured 9d ago against content hash be10f64be2b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

binary-analysis-patterns 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 9d 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.

Origin

This is a copy

94% identical to binary-analysis-patterns — 5 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/binary-analysis-patterns/SKILL.md · 453 lines

How it starts

The opening of the file, as written. The whole thing — 453 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Binary Analysis Patterns

Comprehensive patterns and techniques for analyzing compiled binaries, understanding assembly code, and reconstructing program logic.

Use this skill when

  • Working on binary analysis patterns tasks or workflows
  • Needing guidance, best practices, or checklists for binary analysis patterns

Do not use this skill when

  • The task is unrelated to binary analysis patterns
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.
  • If detailed examples are required, open resources/implementation-playbook.md.

Disassembly Fundamentals

x86-64 Instruction Patterns

Function Prologue/Epilogue
; Standard prologue
push rbp           ; Save base pointer
mov rbp, rsp       ; Set up stack frame
sub rsp, 0x20      ; Allocate local variables

; Leaf function (no calls)
; May skip frame pointer setup
sub rsp, 0x18      ; Just allocate locals

; Standard epilogue
mov rsp, rbp       ; Restore stack pointer
pop rbp            ; Restore base pointer
ret

; Leave instruction (equivalent)
leave              ; mov rsp, rbp; pop rbp
ret
Calling Conventions

System V AMD64 (Linux, macOS)

; Arguments: RDI, RSI, RDX, RCX, R8, R9, then stack
; Return: RAX (and RDX for 128-bit)
; Caller-saved: RAX, RCX, RDX, RSI, RDI, R8-R11
; Callee-saved: RBX, RBP, R12-R15

; Example: func(a, b, c, d, e, f, g)
mov rdi, [a]       ; 1st arg
mov rsi, [b]       ; 2nd arg
mov rdx, [c]       ; 3rd arg
mov rcx, [d]       ; 4th arg
mov r8, [e]        ; 5th arg
mov r9, [f]        ; 6th arg
push [g]           ; 7th arg on stack
call func

Microsoft x64 (Windows)

; Arguments: RCX, RDX, R8, R9, then stack
; Shadow space: 32 bytes reserved on stack
; Return: RAX

; Example: func(a, b, c, d, e)
sub rsp, 0x28      ; Shadow space + alignment
mov rcx, [a]       ; 1st arg
mov rdx, [b]       ; 2nd arg
mov r8, [c]        ; 3rd arg
mov r9, [d]        ; 4th arg
mov [rsp+0x20], [e] ; 5th arg on stack
call func
add rsp, 0x28

Read the full file on GitHub · 453 lines

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. 9d ago First seen · 453 lines · 39 tokens per session scan A be10f64be2b9

Subscribe to this mod's changes

binary-analysis-patterns is a skill published in the GitHub repository benjaminasterA/antigravity-awesome-skills (277 stars, last pushed today), licensed MIT. It adds 39 tokens to every session and 2,976 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to binary-analysis-patterns, differing in 5 lines, and is treated as a copy.

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