transaction-monitoring

transaction-monitoring is a skill for Claude Code from vyayasan/kyc-analyst. It costs 47 tokens per session (745 once invoked), scanned A, original, MIT.

A workflow for reviewing ongoing customer transactions for signs of money laundering or other financial crime. It looks for patterns such as splitting payments into smaller amounts, routing money through multiple accounts, or unusual activity.

In plain words
What is it for?
It helps analyse transaction histories, assess patterns against reporting thresholds, and prepare Suspicious Activity Reports for human review.
Why use it?
Suspicious activity can be hidden across many transactions, so reviewing individual payments alone may miss important patterns.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: positional $N argument.

Part of the kyc-analyst plugin — 5 skills, 6 commands shipped together

Good fit It helps analyse transaction histories, assess patterns against reporting thresholds, and prepare Suspicious Activity Reports for human review.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vyayasan/kyc-analyst/transaction-monitoring
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 vyayasan/kyc-analyst --skill transaction-monitoring
Clone the repo
git clone --depth 1 https://github.com/vyayasan/kyc-analyst

Made for: Claude Code.

Or install kyc-analyst, the plugin that ships this one along with the rest of its 5 skills, 6 commands.

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 transaction-monitoring

README.md
[![agentmods](https://agentmods.dev/badge/skills/vyayasan/kyc-analyst/transaction-monitoring/github.svg)](https://agentmods.dev/skills/vyayasan/kyc-analyst/transaction-monitoring)
Your own site
<a href="https://agentmods.dev/skills/vyayasan/kyc-analyst/transaction-monitoring"><img src="https://agentmods.dev/badge/skills/vyayasan/kyc-analyst/transaction-monitoring/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 transaction-monitoring

Your own site · 80×15
<a href="https://agentmods.dev/skills/vyayasan/kyc-analyst/transaction-monitoring"><img src="https://agentmods.dev/badge/skills/vyayasan/kyc-analyst/transaction-monitoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 745 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 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 $0.00047 $0.00745
Opus 5 $0.00023 $0.00373
Sonnet 5 $0.00009 $0.00149
Haiku 4.5 $0.00005 $0.00075

Measured 12d ago against content hash 8762808bde1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

transaction-monitoring 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 12d 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/transaction-monitoring/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Transaction Monitoring Skill - v1.0.0

AML transaction monitoring for ongoing customer relationships. Identifies suspicious patterns, assesses structuring and layering, and prepares Suspicious Activity Reports (SARs).

Overview

Transaction monitoring is a continuous obligation under AML regulations. This skill analyzes transaction data to detect patterns that may indicate money laundering, terrorist financing, or other financial crime.

Detection Patterns

1. Structuring (Smurfing)

  • Multiple transactions just below reporting thresholds
  • Multiple deposits across different branches/channels on same day
  • Pattern of round-number transactions
  • Threshold (US): $10,000 CTR threshold; $5,000 aggregated suspicious activity

2. Layering

  • Complex routing through multiple accounts or entities
  • Rapid movement between accounts with no clear business purpose
  • International transfers through multiple jurisdictions
  • Use of shell companies or nominee accounts

3. Circular Flows

  • Money leaving and returning to same account via intermediaries
  • Round-trip transactions with no economic substance
  • Funds flowing through subsidiaries back to parent

4. Velocity Anomalies

  • Sudden increase in transaction frequency
  • Dramatic change in average transaction value
  • Activity inconsistent with customer profile or declared business
  • Dormant account reactivation with high-value activity

5. Geographic Risk Patterns

  • Transactions to/from FATF grey-list or black-list jurisdictions
  • Unexplained payments to/from high-risk countries
  • Wire transfers to known shell company jurisdictions

Monitoring Process

Step 1: Data Analysis

  • Import transaction data (CSV, Excel, or database extract)
  • Calculate baseline metrics (average value, frequency, counterparties)
  • Identify deviations from customer profile

Step 2: Pattern Detection

  • Apply detection rules for each pattern type
  • Flag transactions meeting alert criteria
  • Score alerts by severity (LOW/MEDIUM/HIGH/CRITICAL)

Read the full file on GitHub · 101 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. 12d ago First seen · 101 lines · 47 tokens per session scan A 8762808bde1f

Subscribe to this mod's changes

transaction-monitoring is a skill published in the GitHub repository vyayasan/kyc-analyst (56 stars, last pushed 2mo ago), licensed MIT. It adds 47 tokens to every session and 745 once invoked, about $0.0002 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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