By JoelLewis
Design and manage financial data infrastructure including reference data systems (security masters, identifier mappings), market data feeds (real-time/delayed, vendor selection), integration architectures (APIs, FIX, event-driven), and data quality governance with regulatory compliance (BCBS 239, MiFID II).
Design and operate data quality programs for financial data — golden source architecture, validation rules, data lineage, exception management, profiling, and governance. Use when building validation rules for pricing or client data pipelines, designing a data quality monitoring framework, establishing golden source designations across systems, implementing data lineage for BCBS 239 or MiFID II, investigating reconciliation breaks or billing errors traced to bad data, preparing for regulatory exams on data accuracy, building data quality scorecards, or defining data stewardship roles. Trigger on: data quality, golden source, data lineage, data validation, data profiling, exception management, data governance, BCBS 239, data completeness, data accuracy, validation rules, data anomaly, data stewardship, data quality scorecard.
Design and implement integration architectures connecting financial systems — APIs, FIX protocol, ISO 20022, event-driven patterns, batch feeds, idempotency, and resilience. Use when building custodian integration pipelines, implementing FIX connectivity for order routing, designing ISO 20022 or SWIFT migration messaging, building batch file processing for custodian feeds or EOD reconciliation, implementing idempotency for transaction APIs, designing retry or circuit breaker patterns, mapping data between systems with different schemas, or troubleshooting integration failures causing recon breaks. Trigger on: FIX protocol, ISO 20022, custodian feed, batch processing, API design, idempotency, circuit breaker, dead letter queue, data mapping, integration architecture, SWIFT migration, mTLS, file feed, event-driven, message broker.
Design and manage market data infrastructure — real-time and delayed feeds, Level 1/2/3 depth, consolidated tape vs direct feeds, vendor selection, licensing, and distribution architecture. Use when choosing between real-time and delayed data, evaluating market data vendors like Bloomberg or Refinitiv, designing ticker plants or fan-out architecture, managing exchange data licensing and entitlements, diagnosing stale quotes or missing ticks, deciding between SIP and direct exchange feeds, or assessing Level 2/3 depth-of-book requirements for trading. Trigger on: market data, Level 1/2/3, depth of book, consolidated tape, SIP, direct feed, NBBO, ticker plant, B-PIPE, data license, non-display use, market data entitlements, conflation, tick data, real-time feed.
Design and manage reference data systems — security master, client master, account master, identifier mapping, pricing data, and governance. Use when building or evaluating a security master database, mapping identifiers across systems (CUSIP to ISIN, SEDOL to FIGI), designing client master models for onboarding or KYC, defining account master attributes across custodians, implementing pricing validation with vendor hierarchy, establishing reference data governance and stewardship, handling identifier changes from corporate actions, or troubleshooting data quality issues traced to stale prices or missing identifiers. Trigger on: security master, CUSIP, ISIN, SEDOL, FIGI, client master, account master, pricing data, reference data, golden source, MDM, master data, identifier mapping, data governance, pricing validation.
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A collection of Claude Code skill plugins for financial services. 84 skills across 7 domain plugins teach Claude investment management, regulatory compliance, advisory workflows, trading operations, and more — so it can assist with finance questions, build financial tools, and flag compliance concerns.
Built by Joel Lewis.
Contributions welcome! Found a way to improve a skill or have a new one to add? See CONTRIBUTING.md.
Disclaimer: These skills are provided as-is for educational and informational purposes only. The authors make no representations or warranties regarding the accuracy, completeness, or currentness of this content. Nothing in these skills constitutes financial, legal, tax, or investment advice. Users should independently verify any information before relying on it in a professional or personal context. See LICENSE for full terms.
core — Mathematical FoundationsAlways installed. Provides the math that every other plugin builds on.
| Skill | What Claude can do |
|---|---|
return-calculations | Compute TWR, MWR/IRR, CAGR, sub-period linking, annualization |
time-value-of-money | PV, FV, NPV, IRR, annuities, amortization schedules |
statistics-fundamentals | Distributions, covariance matrices, regression, bootstrapping |
Python reference scripts included for all three skills.
wealth-management — Investment KnowledgeInvestment knowledge for personal and institutional wealth management. Covers the full investment lifecycle from risk measurement through reporting.
Risk measurement: Historical volatility estimators, drawdown analysis, historical VaR, parametric VaR, Monte Carlo VaR, CVaR/Expected Shortfall, GARCH, implied volatility surfaces.
Asset classes: Equities (factors, index construction, earnings), fixed income (sovereign, municipal, corporate, structured), commodities, real assets, alternatives, fund vehicles, currencies and FX, digital assets.
Valuation: Quantitative models (DCF, DDM, comparables, residual income) and qualitative assessment (moats, management quality, ESG).
Portfolio construction: Diversification theory, mean-variance optimization, Black-Litterman, risk parity, Kelly criterion, position sizing, calendar- and threshold-based rebalancing.
Policy and planning: IPS construction, tax-aware investing, asset location, tax-loss harvesting (dedicated workflow skill), performance attribution (Brinson, factor-based).
Personal finance: Debt prioritization, mortgage and loan analysis, emergency fund sizing, savings goals, liquidity management.
Behavioral finance: Cognitive biases, nudges, emotional discipline.
Reporting: Risk-adjusted performance ratios, performance reports, benchmark comparison, goal progress tracking.
32 skills. Python scripts for quantitative skills (risk, performance metrics, and core math).
compliance — US Securities Regulatory GuidanceGuidance-only (no Python scripts). Skills teach Claude how to flag problems and share distilled knowledge from public compliance guides, SEC/FINRA enforcement actions, and industry practice. All skills cite specific rule numbers and act sections.
| Skill | Coverage |
|---|---|
investment-suitability | FINRA Rules 2111/2090, reasonable-basis/customer-specific/quantitative suitability |
know-your-customer | CIP, CDD, beneficial ownership, customer profiling, EDD |
anti-money-laundering | BSA/AML, CTRs, SARs, OFAC screening, structuring detection |
reg-bi | SEC Reg BI disclosure, care, conflict of interest, and compliance obligations |
fiduciary-standards | IA Act §206, SEC 2019 Interpretation, ERISA §404, DOL rules |
fee-disclosure | ADV Part 2A Item 5, Reg BI cost disclosure, 12b-1, wrap fees, ERISA 408(b)(2) |
advice-standards | IA Act §202(a)(11), the investment advice vs. education bright line |
sales-practices | Churning, breakpoint abuse, selling away, unauthorized trading, supervision |
advertising-compliance | SEC Marketing Rule (206(4)-1), FINRA Rule 2210, performance advertising |
client-disclosures | Form ADV, Form CRS, Reg S-P, trade confirmations, delivery timing |
conflicts-of-interest | Reg BI COI obligation, fiduciary duty, FINRA compensation rules |
books-and-records | SEC 17a-3/17a-4, Rule 204-2, WORM storage, electronic communications archiving |
regulatory-reporting | Form PF, 13F/13H, Form ADV amendments, FOCUS reports, CAT reporting |
gips-compliance | CFA Institute GIPS: composites, performance presentation, verification |
privacy-data-security | Reg S-P, Reg S-ID, SEC cybersecurity rules (2023), state privacy law |
examination-readiness | SEC/FINRA exam process, document production, deficiency findings, mock exam frameworks |
16 skills.
npx claudepluginhub joellewis/finance_skills --plugin data-integrationBack-office account operations and servicing workflows. Covers the full account lifecycle from opening through maintenance, transfers, reconciliation, and corporate actions.
Investment knowledge for personal and institutional wealth management. Covers risk measurement, asset classes, valuation, portfolio construction, policy and planning, personal finance, behavioral finance, and reporting.
Order lifecycle from entry through settlement, plus operational and counterparty risk. Serves advisor, algorithmic, and client-direct trading contexts.
Advisor-facing systems and workflows. Teaches Claude how advisor platforms work so it can help design, evaluate, or integrate with them. Covers the full advisor workflow from onboarding through reporting.
US securities regulatory guidance for broker-dealers and investment advisers. Covers FINRA, SEC, ERISA, FinCEN, and CFA Institute GIPS requirements. Guidance-only — no Python scripts.
Order lifecycle from entry through settlement, plus operational and counterparty risk. Serves advisor, algorithmic, and client-direct trading contexts.
Jurisdiction-aware banking regulatory domain agent. 17 skills (1 router + 16 products) across IFRS 9 ECL, Basel III/IV capital and liquidity, AML/KYC/sanctions, and bank reconciliation. 7 jurisdiction overlays, 4 commands, hooks, and eval harness. Covers UK, EU, US, Australia, Singapore, UAE, and Pakistan.
Finance research, trading, risk, and portfolio Agent Skills grounded in LLMQuant Data. Bundles every llmquant-* category skill under skills/.
Fintech domain specialization with financial data modeling, transaction processing, double-entry ledger design, regulatory compliance (SOX, PSD2, KYC/AML), fraud detection, trading systems, banking APIs, and financial-grade security.
Operational workflows: KYC document parsing and rules-grid evaluation
Banking & lending skills: credit memos with covenant headroom, quarterly covenant compliance reviews, KYC/AML escalation write-ups, and portfolio risk briefs — credit and compliance judgment for analysts and RMs.