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.
npx skills add JoelLewis/finance_skills --skill portfolio-management-systemsgit clone --depth 1 https://github.com/JoelLewis/finance_skillsWrote 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.
[](https://agentmods.dev/skills/joellewis/finance_skills/portfolio-management-systems)<a href="https://agentmods.dev/skills/joellewis/finance_skills/portfolio-management-systems"><img src="https://agentmods.dev/badge/skills/joellewis/finance_skills/portfolio-management-systems/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.
<a href="https://agentmods.dev/skills/joellewis/finance_skills/portfolio-management-systems"><img src="https://agentmods.dev/badge/skills/joellewis/finance_skills/portfolio-management-systems.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00158 | $0.02640 |
| Opus 5 | $0.00079 | $0.01320 |
| Sonnet 5 | $0.00032 | $0.00528 |
| Haiku 4.5 | $0.00016 | $0.00264 |
Grade A, and why
portfolio-management-systems 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.
How it starts
The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Portfolio Management Systems
Core Concepts
Expanded detail for each numbered section below lives in references/platform-details.md. Load it when the task needs: §1 the platform comparison table or IBOR/OBOR reconciliation dimensions; §2 full model specification, governance steps, or marketplace detail; §3 UMA cash-waterfall rules or the UMA/SMA/wrap comparison table; §4 drift measurement formulas, threshold configurations, or tax-aware rebalancing logic; §5 aggregation data sources and data-quality failure modes; §6 break-resolution workflow, corporate-action types, or cost basis methods; §8 daily vs. monthly calculation and benchmark tracking detail; §10 the custodian data-flow table, integration methods, and feed timing. (Reference §7 trading and §9 billing are pointers to the order-management-advisor and fee-billing skills — load those skills directly instead.)
1. Portfolio Management System Architecture
The PMS is the operational nerve center of an advisory practice, orchestrating data flow between custodians, trading platforms, reporting engines, CRM, and planning tools. Core functions include portfolio construction, model management, rebalancing, trading, performance reporting, and billing. Major platforms: Orion, Black Diamond, Tamarac, Addepar, Morningstar Direct, Advent/APX. The PMS serves as the firm's Investment Book of Record (IBOR), which must be reconciled daily against the custodian's Official Book of Record (OBOR).
2. Model Portfolio Management
Model portfolios define target allocations (asset classes, securities, weights) applied consistently across client accounts. Types include strategic (SAA), tactical (TAA overlays), and specialty models (income, ESG, tax-managed). Firms typically use a two-tier hierarchy (firm-level + advisor-customized). Model changes trigger versioning, account identification, trade proposal generation, and tax-aware transition. Third-party model marketplaces (BlackRock, DFA, Vanguard, PIMCO) allow smaller firms to access institutional-quality investment management.
What ships with it
2 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.
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.
- 12d ago First seen · 156 lines · 158 tokens per session scan A f68ec0d71c16
portfolio-management-systems is a skill published in the GitHub repository JoelLewis/finance_skills (184 stars, last pushed 1mo ago), licensed MIT. It adds 158 tokens to every session and 2,640 once invoked, about $0.0008 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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