dynamic-analysis

A toolkit for examining running programs while they execute. It can attach to or start a process, pause it at breakpoints, trace functions, inspect registers, memory, and the call stack, and collect runtime data.

In plain words
What is it for?
Use it to debug or reverse-engineer live processes, watch when code or memory is accessed, step through execution, patch live memory, and count Direct3D 9 draw calls.
Why use it?
It helps explain what a program is doing internally when reading source code or analyzing saved files is not enough.

Skill for Claude CodeCodex

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 skills/ekozmaster/vibe-reverse-engineering/dynamic-analysis
Any agent
npx skills add Ekozmaster/Vibe-Reverse-Engineering --skill dynamic-analysis
Clone the repo
git clone --depth 1 https://github.com/Ekozmaster/Vibe-Reverse-Engineering

Made for: Claude Code, Codex.

Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,582 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 $0.00083 $0.05582
Opus 5 $0.00042 $0.02791
Sonnet 5 $0.00017 $0.01116
Haiku 4.5 $0.00008 $0.00558

Measured 2d ago against content hash c6a657b6ee69, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dynamic-analysis 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 2d 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.

.claude/skills/dynamic-analysis/SKILL.md · 486 lines

How it starts

The opening of the file, as written. The whole thing — 486 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Dynamic Analysis with livetools

For DX9 FFP proxy porting and RTX Remix compatibility, invoke the dx9-ffp-port skill.

A live analysis toolkit for running processes. Attach, trace functions, collect data, inspect state, step through code, patch memory, analyze offline -- composable tools that chain naturally for any RE scenario.

All commands: python -m livetools <command> [args]

Quick Reference

Session

python -m livetools attach <name_or_pid>             # attach to running process
python -m livetools attach <exe_path> --spawn        # launch + instrument before init code runs
python -m livetools detach                            # release target, stop daemon
python -m livetools status                            # check state

Breakpoints (blocking)

python -m livetools bp add <addr>             # set blocking code breakpoint
python -m livetools bp del <addr>             # remove breakpoint
python -m livetools bp list                   # list all BPs + hit counts

Wait for Hit

python -m livetools watch --timeout 60        # block until BP hit (returns snapshot)

Inspect (while frozen)

python -m livetools regs                      # all registers
python -m livetools stack [N]                 # top N dwords from ESP (default 16)
python -m livetools mem read <addr> <size>    # hex dump + multi-type interpretation
python -m livetools mem read <addr> <size> --as float32
python -m livetools disasm [addr] [-n count]  # disassemble (default: EIP, 16 insns)
python -m livetools bt                        # call stack backtrace

Supported --as types: float32, float64, half, uint8, int8, uint16, int16, uint32, int32, ptr, ascii, utf16.

Control

python -m livetools step [over|into|out]      # advance one instruction (returns snapshot)
python -m livetools resume                    # unfreeze target

Patch + Scan (anytime)

python -m livetools mem write <addr> <hex>    # write bytes to live memory
python -m livetools mem alloc <size>          # allocate rwx memory in target (for code caves)
python -m livetools scan <pattern> --range START:SIZE

Read the full file on GitHub · 486 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. 2d ago First seen · 486 lines · 83 tokens per session scan A c6a657b6ee69

Subscribe to this mod's changes

dynamic-analysis is a skill published in the GitHub repository Ekozmaster/Vibe-Reverse-Engineering (46 stars, last pushed 1mo ago), licensed MIT. It adds 83 tokens to every session and 5,582 once invoked, about $0.0004 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 2026-08-30.

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