Phronisi.app
Victoria, BC · Coast Salish Territory
Operating with respect for traditional lands
AI Specialist · Multi-industry & Indigenous Finance · Operations · Strategy

Most AI consultants have never operated a balance sheet. Most CFOs don't write code. Arthur Kostaras, CPA · CMA · CF · REV · CAFM Candidate, does both — thirty years of senior finance leadership, four production AI platforms, and a published methodology. AI counsel for institutions that have run out of patience for theory. Now booking Q3 — Q4 2026.

Phronisi. φρόνηση FROH · nee · see
Aristotle’s word for practical wisdom. Distinct from sophia (theory) and techne (craft). The third thing — and the work the practice installs.
§ The Practice Atlas

Ten verticals. One operator.

Same disciplines, different P&Ls.

The cross-industry intuition is the practice. A senior credit memo, a defence-procurement value proposition, a hospitality renovation proforma, and an Indigenous joint-venture agreement do not look the same on the page. The disciplines that make each of them defensible are recognisably the same.

Currently delivering in three of these sectors simultaneously (named below). Three sectors are marked as anchored credentials.

01

Construction & Infrastructure

RFI, change-order, daily-report automation. Project drift visible before cost-to-complete.
02

Defence & Aerospace

RFP drafting, ITB / value-proposition modelling, PSPC compliance documentation.
03

Energy & Resources

ESG reporting (CSDS, GRI, TNFD, TCFD), regulatory filings, operations data synthesis.
04

Financial Institutions

Credit memos, KYC / AML triage, OSFI E-23 drafting. 30–50% lender desk time recoverable.
Anchor vertical — OSFI E-23 May 2027 forcing function
05

Foundations & Non-Profits

Grant proposals, funder narratives, impact reporting, board governance documentation.
06

Government & Crowns

Briefing and decision notes, policy synthesis, FOI / ATIP triage and severing.
07

Hospitality & Tourism

Multilingual guest correspondence, revenue management, reputation monitoring.
08

Indigenous Econ-Dev

Board packages, JVA review, ISC / CORP reporting. 4–6× CFO output multiplier.
Deepest credential — the practice’s anchor specialty
09

Professional Services

Document review, working-paper documentation, client intake and conflict checks.
CPABC-validated curriculum — Fall 2026
10

Real Estate Development

Proforma generation, sensitivity, waterfall modelling, lender package drafting.
$705M+ Career capital formation
4 AI platforms in production
CPA · CMA · CF · REV Designations
10 Industries served
Author The Kostaras Method
CAFM Candidate · AFOA Canada
$705M+ Career capital formation
4 AI platforms in production
CPA · CMA · CF · REV Designations
10 Industries served
Author The Kostaras Method
CAFM Candidate · AFOA Canada
§ The Proposition

AI is the largest operating-margin expansion event since the spreadsheet. The question is no longer whether — it is who installs it, how fast, and how defensibly.

30yrs
Operating credibility

Three decades as a senior finance executive across Canada, the U.S., Europe, and the Middle East. CFO and Managing Director roles in environments where the model has to actually clear.

4
Production platforms shipped

Not slides. Four working AI-powered platforms on Railway / Node.js / PostgreSQL, designed and operated personally. Code, infrastructure, customers, the whole stack.

1
Published methodology

The Kostaras Method — a public Claude Code skills library used by practitioners to encode senior-finance judgment into AI workflows. Not theory; an artefact.

01 / The Practice

Five formats. One method.

The work scales from a single ninety-minute briefing to a full fifteen-week implementation sprint. Every engagement begins with the same diagnostic and ends with operating capability transferred to your team.

/ 01
The Briefing
A ninety-minute executive masterclass for a senior leadership team or institutional cohort. AI fluency, redaction discipline, working-paper documentation. Walks in expecting hype, walks out with a usable framework. Financial-institution lender format.
90 min · ≤50 attendees Engagement fee on request
/ 02
The Course
A half-day to two-day live virtual professional development course, designed for professional bodies and member associations. CPD-credit-ready, designation-defensible, with versioned materials and an annual refresh cycle. CPABC syllabus format.
0.5 — 2 days · cohort Licensable to body
/ 03
The Sprint
A fifteen-week AI implementation sprint that stands up an accountability system, a workflow agent, or a domain-specific platform for an operating company. Architecture, build, governance, handover. Construction-sector implementation format.
15 weeks · embedded Fixed-fee + performance
/ 04
The Advisory
An ongoing AI strategy retainer for a CEO, CFO, or Board. Monthly working sessions, quarterly governance reviews, ad-hoc counsel on procurement, vendor selection, and regulatory exposure (OSFI E-23, OPC AIDA, OCAP®).
12 mo · retainer Quarterly draw
/ 05
The Keynote
A conference or industry-day keynote on AI for the senior finance executive, the practitioner's path from CFO to builder, or AI in Indigenous finance. Speaking history available on request.
45 — 60 min Speaking fee on request
02 / Segments

Four buyer segments. One operator.

The practice serves four buyer segments anchored to live engagements and forthcoming publications. Selected work also spans six adjacent sectors. The breadth is the moat; the depth is the credential.

/ A   Professional Development

CPAs, CAFMs, designation-holders

Designation-defensible AI fluency, CPD-credit-ready, validated by CPABC.
  • Curriculum design and module structure for CPD-credit-ready delivery, with versioned materials and an annual refresh cycle.
  • Working-paper documentation templates that hold up to peer review and inspection by professional standards bodies.
  • Instructor delivery — live virtual or in-person — by a senior-finance practitioner who builds production AI systems, not by a faculty contractor.
  • Designation-defensible content built around the Profit Formula, the Triangulated Lens, and CAS implications. Validated by CPABC.
Anchor assetCPABC curriculum validation, Fall 2026.
Entry productThe Course or The Keynote.
Bodies servedCPABC, CPA Canada, AFOA Canada, ICD, CFA Society Canada.
Indicative impact8 – 15 h / week per professional reclaimed
/ B   OSFI-Regulated Financial Institutions

Banks, credit unions, trust companies

Credit memos that write themselves while your lender keeps the relationship.
  • Credit-memo and deal-package automation, with audit-defensible documentation.
  • KYC / AML triage and exception handling at scale.
  • Regulatory drafting against OSFI E-23, FINTRAC, and CSA obligations.
  • Customer-correspondence and disclosure generation, multilingual where required.
Anchor assetOSFI E-23 Implementation Guide, forthcoming Q4 2026.
Entry productThe E-23 Diagnostic.
Industries servedBanks, credit unions, trust companies, Indigenous-owned financial institutions.
Indicative impact30 – 50% of lender desk time recoverable
/ C   Industrial, Construction & Supply Chain

General contractors, mid-market industrials

Project drift, visible before it hits the cost-to-complete.
  • RFI, change-order, and submittal processing with forensic anomaly flagging.
  • Daily-report and field-data aggregation across multi-project portfolios.
  • Subcontractor compliance, prequalification, and bonding documentation.
  • Drawings comparison, revision tracking, and dispute-readiness packs.
Anchor assetConstruction sector case study, delivered Q3 — Q4 2026.
Entry productThe Implementation Bridge.
Industries servedGCs, PMs, developers, mid-market industrials, defence supply chain.
Indicative impact15 – 25% G&A reduction in 12 months
/ D   Indigenous Economic Development

Econ-dev corporations, band-owned entities, FMA-certified finance functions

Board packages, JVA review, and regulatory reporting on the discipline a Nation finance function actually operates under.
  • Chief & Council briefing notes and Board packages in a Nation’s established house voice.
  • JVA review, redlining, and clause-comparison against precedent.
  • ISC / CORP / NRT application drafting and reporting, fully reconcilable.
  • OCAP®-respecting research synthesis and Section 35 / FNFMA documentation discipline.
Deepest credentialOperator-side experience inside a Nation-owned economic-development corporation.
Entry productThe Briefing.
Industries servedIndigenous econ-dev corporations, band-owned entities, Nation-owned operating companies, FMA-certified Nation finance functions.
Indicative impact4 – 6× CFO output multiplier (operator-side basis)
Selected engagements also span:
Real Estate Development · Hospitality & Tourism · Defence & Aerospace · Energy & Resources · Government & Crowns · Foundations & Non-Profits
03 / Engagements

In flight, 2026.

A snapshot of current work across three of the practice's five formats. Each engagement is run personally; no associates, no sub-contractors, no junior delivery.

The Course / 02 Syllabus delivered · awaiting decision

AI for the Canadian CPA.

Chartered Professional Accountants of British Columbia

A half-day live virtual PD course built for the CPABC catalogue. Module structure spans the Profit Formula, the Triangulated Lens, CAS implications, and an audit-defensible Working Paper Documentation Template.

FormatHalf-day virtual
CohortDesignation-holders
The Briefing / 01 Scheduled · Q2 – Q3 2026

An AI masterclass for lenders.

A Canadian financial institution · Indigenous-owned

A ninety-minute executive masterclass for approximately fifty commercial lenders at a major Canadian financial institution. Anchored against the OSFI Guideline E-23 effective date of 1 May 2027. The session converts a lending team from passive AI-curiosity into a credit-memo workflow that holds up to internal credit and OSFI review — before competitors do the same.

Format90-minute masterclass
Audience≈50 commercial lenders
The Sprint / 03 Proposal stage · 15-week plan

An accountability system, built.

A substantial Canadian construction company

A fifteen-week AI-driven accountability build for a substantial Canadian construction company. Architecture, governance scaffolding, performance-fee structure, and a Day-105 handover. The system delivers what spreadsheets and dashboards have failed to: durable cause-and-effect visibility on project drift, before it shows up in the cost-to-complete — turning weeks of senior-PM forensic work into a daily, automated brief.

Duration15 weeks
StructureFixed + performance
04 / Builder evidence

Builder evidence.

Four production AI-augmented platforms, operating on a shared Railway / Node.js / PostgreSQL stack. Live infrastructure, not portfolio pieces — supporting evidence for the practice.

Career → Capital → Exit:
covered end-to-end.

The four platforms form a lifecycle, not a portfolio. Every Canadian professional, business owner, and capital allocator moves through these stages. The infrastructure to support them — instrumented, AI-native, and operating — is already built.

05 / The Math

What is "trained for AI" worth?

A working estimate of what a single ninety-minute briefing returns to an organization in the first twelve months. Move the sliders. The math is conservative by design.

Inputs

50
$110
2.5
60%
12-month return
$515,000

Returned to the operating business in reclaimed analyst, manager, and partner hours during the twelve months after a single ninety-minute briefing. Conservative model: 48 working weeks, no compounding for downstream automation.

Hours reclaimed / yr 3,600 h
Indicative engagement fee $18,500
First-year payback period 5 days
Indicative 12-month ROI 27.8×
06 / The Method

The Kostaras Method.

A published Claude Code skills library that encodes senior finance judgment into AI workflows. Not a prompt pack — a methodology with structure, conventions, and a working artefact behind it.

The Kostaras Method is a public, versioned skills library for Claude Code. It is the working memory of a senior finance executive, externalised — how to read an investment memorandum, how to structure a joint venture agreement, how to argue with a DSCR assumption, how to decide whether an AI output is defensible.

The method is what an operator does — the AI just executes it. Theory is the easy half. The harder half — the one that almost no AI consultant teaches — is the judgment that decides whether the answer is the answer.

"AI is a force multiplier. The multiplier of zero judgment is still zero. The work is to install the judgment."

What's inside the library

A representative sample
  • / 01Investment MemoInstitutional-grade memoranda in a defensible house style.
  • / 02JVA DraftingClause libraries, negotiating positions, deal-specific precedent.
  • / 03Financial AnalysisCash flow, waterfall, IRR / NPV, scenario tooling.
  • / 04Due DiligenceCounterparty assessment, data-room review, forensic flags.
  • / 05Indigenous Legal FrameworksSection 35, UNDRIP, DRIPA, OCAP®, ITB analysis.
  • / 06Board GovernanceBoard packages, BCRs, fiduciary documentation.
  • / 07Internal ControlsICP series, FMB compliance, segregation of duties.
  • / 08Forecasting & BudgetsMulti-year projections, variance, Chief & Council reporting.
07 / About

Arthur Kostaras.

Finance executive, AI builder, and instructor. Based in Victoria, BC. Operating from Coast Salish territory.

φρ
Arthur Kostaras
Arthur Kostaras · Founder
CPA CMA CF REV CAFM Cand.

Three decades of senior finance leadership across Canada, the United States, Europe, and the Middle East — carrying roles as Managing Director, Chief Financial Officer, and Chief Executive Officer through capital-markets, royalty-financing, hospitality, real estate, defence, infrastructure, and Indigenous-economic-development environments. Career capital formation track record of $705M+. Operations management track record of $85M+.

The most recent operating role was Chief Financial Officer at Songhees Development Corporation, the economic-development arm of Songhees First Nation in Victoria, BC. That CFO tenure recently completed; Phronisi is now operated full-time as the next chapter of the work.

The breadth of operating context is the source of the cross-industry intuition the practice delivers. A senior credit memo, a defence-procurement value proposition, a hospitality renovation proforma, and an Indigenous joint-venture agreement do not look the same on the page — but the disciplines that make each of them defensible are recognisably the same. That is the work.

Once frontier AI became operator-grade through 2024, applied it ruthlessly across the senior-finance workflow — investment memoranda, JVA drafting, financial modelling, governance documentation, due diligence. By late 2025, the next step was inevitable: shipping production AI infrastructure. The first platform was CanadaAccountants.app, followed by three more — a lifecycle of four platforms covering practice growth, capital allocation, and business exits for Canadian professionals.

The consulting practice grew organically out of that work. A Canadian financial institution, CPABC, and a substantial Canadian construction company were the first three institutions to engage Arthur personally as an AI Specialist. The practice exists to extend that work to a small, selective roster of additional institutions per year.

30+
Years senior finance
$705M+
Career capital formation
4
AI platforms shipped
4
Continents · operating
§ The toolkit

Twelve capabilities, earned in operation.

What the practice actually brings to the room. Each item is grounded in years of executive-grade delivery — not skills picked up for a brochure.

01

Senior finance leadership

CFO, CEO, and Managing Director-level decision-making across regulated and non-regulated environments.
02

Investment memoranda

Institutional-grade memos in a defensible house style. Used by lenders, IC’s, boards, and counterparties.
03

Capital formation

Debt, equity, royalty, and blended structures. $705M+ raised and deployed across career.
04

JVA & commercial contracts

Negotiation, clause libraries, redlining, and precedent-led drafting for joint ventures and partnership agreements.
05

Due diligence & forensics

Counterparty assessment, data-room review, fee-extraction pattern detection, and pre-investment investigation.
06

Real estate & infrastructure

Development proformas, sensitivity and waterfall modelling, residual land value, and lender-package drafting.
07

Defence & ITB modelling

RFP and bid-package drafting, value-proposition modelling, PSPC/TBS compliance, controlled-goods administration.
08

Indigenous finance frameworks

Section 35, UNDRIP, DRIPA, OCAP®, FNFMA, FMB and FNFA mechanics applied to live commercial work.
09

Board governance

Board packages, committee materials, BCRs, fiduciary discipline, AGM preparation, and committee secretariat.
10

Internal controls

ICP-series authorship, FMB compliance, segregation of duties, payroll controls, and journal-entry authorisation.
11

AI implementation

Architecture, agent design, retrieval, and the engineering of four production platforms running on a personal stack.
12

Methodology authorship

The Kostaras Method — a public, versioned Claude Code skills library used to encode senior-finance judgment.
§ Industries operated across
Financial services·Capital markets·Royalty financing·Real estate development·Hospitality & tourism·Construction & infrastructure·Defence procurement·Indigenous economic development·Professional services·Public-sector advisory

Why Phronisi.

φρόνηση
FROH · nee · see

Aristotle distinguished three kinds of knowing in the Nicomachean Ethics. Sophia is theoretical wisdom — what academics deliver. Techne is technical craft — what AI tools deliver. Phronesis is the third thing: practical wisdom — the wisdom that knows how to act well in the specific situation.

That third thing is exactly what is missing in most AI advisory conversations. Theory and technical capability are everywhere; practical wisdom in their application is rare. The practice is named for what it installs.

"Practical wisdom is concerned not only with universals but with particulars." Aristotle · Nicomachean Ethics, Book VI

Move on AI before your competitors do.

Earthur@phronisi.app · T+1 (647) 956 · 7290 · BookingQ3 — Q4 2026 · 2–4 new engagements per quarter