blockchain-forensics

blockchain-forensics is a skill for Claude Code, Codex from forefy/.context. It costs 51 tokens per session (4,649 once invoked), scanned A, original, MIT.

A blockchain investigation guide for tracing suspicious cryptocurrency activity across wallets and networks. It covers threat recognition, transaction collection, address clustering, open-source research, and reporting.

In plain words
What is it for?
Use it for exploit, phishing, rug-pull, theft, and laundering investigations, including cross-chain tracing, transaction-pattern analysis, address attribution, and case reports.
Why use it?
It gives investigators a structured way to scope an incident, follow money movement, assess possible links between addresses, and record evidence with its limitations.

Skill for Claude CodeCodex

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

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/forefy/.context/blockchain-forensics
Any agent
npx skills add forefy/.context --skill blockchain-forensics
Clone the repo
git clone --depth 1 https://github.com/forefy/.context

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 blockchain-forensics

README.md
[![agentmods](https://agentmods.dev/badge/skills/forefy/.context/blockchain-forensics.svg)](https://agentmods.dev/skills/forefy/.context/blockchain-forensics)
Your own site
<a href="https://agentmods.dev/skills/forefy/.context/blockchain-forensics"><img src="https://agentmods.dev/badge/skills/forefy/.context/blockchain-forensics.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,649 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 5.1 $0.00051 $0.04649
Opus 5 $0.00026 $0.02325
Sonnet 5 $0.00010 $0.00930
Haiku 4.5 $0.00005 $0.00465

Measured 6d ago against content hash 5ba384b83c08, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

blockchain-forensics 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 6d 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.

skills/blockchain/blockchain-forensics/SKILL.md · 388 lines

How it starts

The opening of the file, as written. The whole thing — 388 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blockchain Forensics - Expert Investigation Framework

Reference Files

Load these files on demand as the investigation requires:

  • references/threat-landscape.md - Threat type profiles: exploits, drainers, pig butchering, phishing, address poisoning, rug pulls, social engineering, blackmail, nation-state actors, physical theft
  • references/attribution-techniques.md - Transaction patterns, gas wallet clustering, peel chains, code reuse, cross-chain attribution, behavioral fingerprinting
  • references/osint-framework.md - OSINT sources (social media, domains, repos, threat feeds, legal docs, metadata), best practices, limitations
  • references/advanced-techniques.md - Time-based correlation, demixing (Tornado Cash, Railgun, CoinJoin), bridge hopping, large-scale SQL queries, graph clustering, cross-case pattern recognition
  • references/laundering-patterns.md - Complete reference table of laundering techniques, detection methods, and tools
  • references/tool-reference.md - All tools by category: block explorers, visual tracing, smart contract decoding, analytics, OSINT, protection, paid platforms, community sources
  • references/reporting-standards.md - Evidence hygiene, archiving protocol, exchange and law enforcement cooperation, public disclosure guidance
  • references/professional-development.md - Certification paths (TRM, Chainalysis, Elliptic, Crystal) and continuous learning resources

Table of Contents

  1. Identity and Purpose
  2. How to Engage Users
  3. Threat Landscape Reference
  4. Investigation Methodology (7 Phases)
  5. Attribution Techniques
  6. OSINT Framework
  7. Advanced Techniques
  8. Laundering Pattern Library
  9. Tool Reference (Free-First)
  10. Reporting and Evidence Standards
  11. Professional Development

Read the full file on GitHub · 388 lines

Files

What ships with it

8 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.

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. 6d ago First seen · 388 lines · 51 tokens per session scan A 5ba384b83c08

Subscribe to this mod's changes

blockchain-forensics is a skill published in the GitHub repository forefy/.context (144 stars, last pushed yesterday), licensed MIT. It adds 51 tokens to every session and 4,649 once invoked, about $0.0003 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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