# Palladium

**TEI (Total Economic Impact) Calculator** — The strategic artifact that protects the business case.

Palladium is a Jupyter-notebook toolkit for building Total Economic Impact analyses. Each study is a self-contained Mercury-served notebook deliverable (math in a study package, verification gate, LLM-readable exports); a small shared `core/` talks to [Athena](https://athena.nttdata.com) for client/opportunity context and server-side TEI tooling.

> *In Greek mythology, the Palladium was a sacred artifact of Athena that protected Troy. Whoever possessed it held strategic advantage. In our ecosystem, Palladium protects the deal — transforming discovery inputs into a financial case no CFO can ignore.*

## Architecture

```
┌──────────────────────────────────────────────────────────────────┐
│  Palladium                                                        │
│                                                                   │
│   studies/YYYYMM_TEI_Vendor_Product/     ← self-contained study   │
│   studies/YYYYMM_Client_EngagementName/    (own venv + engine)    │
│         ├─ <studylib>/     ← ALL math, verbatim anchors           │
│         ├─ notebooks/      ← THE deliverable (Mercury-served)     │
│         ├─ tests/          ← pinned acceptance numbers            │
│         └─ exports/        ← .html/.md + JSON appendix (for LLMs, │
│                               and the Athena repository roadmap)  │
│                                                                   │
│   core/  ← shared Athena toolkit (studies do NOT import it)       │
│         tei_client → ──────────────────────────►  Athena API      │
│         calculations · export · cli · bootstrap                   │
└──────────────────────────────────────────────────────────────────┘
```

### Components

| Component | Purpose |
|-----------|---------|
| **`studies/`** | One self-contained folder per engagement — own venv, engine package, Mercury notebook, tests, exports |
| **`template/`** | Copy-me study scaffold — start here for new studies |
| **`core/tei_client`** | Python API client for Athena's TEI endpoints |
| **`core/calculations`** | Financial logic — NPV, ROI, payback, risk adjustment, scenarios |
| **`core/export`** | Builds the structured JSON envelope consumed by the report pipeline |
| **`core/cli`** | `python -m palladium` command-line interface |

> **All studies follow the [Mercury Notebook Deliverable Pattern](docs/Mercury_Notebook_Pattern_V1-00.md)**:
> the notebook *is* the artifact — self-contained study package, Mercury-served,
> gate-verified, LLM-exportable. Start from [`template/MercuryNotebook/`](template/MercuryNotebook/).
> The Streamlit `app/` and `core/notebook_helpers` were retired when the last
> legacy study migrated (git history keeps them).

---

## Quick Start — Jupyter Lab first

Palladium is a **Jupyter Lab-first** environment. Everything starts from a
notebook; the CLI is a companion, not a prerequisite.

```bash
git clone https://github.com/nttdata/palladium.git
cd palladium
make setup     # venv + deps + editable install (one time)
make lab       # launches Jupyter Lab
```

Then open **`00_setup.ipynb`** at the repo root. It will:

1. Prompt for your Athena API key (hidden input) and save it to `.env`
2. Test the connection
3. Show what report templates and tools exist in the instance

Current target instance: **https://athena.ouranos.helu.ca** (Ouranos sandbox —
no production data, safe to experiment).

From any root-level notebook, the Athena connection is one import (pattern
studies are self-contained and never import `core`):

```python
from core.bootstrap import init

pal = init()                               # loads .env, builds client, tests it
pal.client.list_reports()
```

### Configuration

All credentials and IDs live in `<repo>/.env` (gitignored). `00_setup.ipynb`
writes it for you; to do it by hand:

```bash
# .env
ATHENA_BASE_URL=https://athena.ouranos.helu.ca
ATHENA_API_KEY=your-api-key-here
```

### Verify Connection

In a notebook: `init()` prints the connection status. From a shell:

```bash
python -m palladium test
```

---

## Usage

### Run a study end-to-end

Each new study is self-contained under the
[Mercury Notebook Deliverable Pattern](docs/Mercury_Notebook_Pattern_V1-00.md).
The reference TEI study is the February 2026 Forrester *Total Economic
Impact™ Of Amazon Connect* (pattern Variant 4 — composite reproduction):

```bash
cd studies/202602_TEI_Amazon_Connect
python -m venv .venv && source .venv/bin/activate && pip install -e ".[dev]"
mercury --working-dir notebooks/     # serve the deliverable (the stage)
python scripts/export_report.py      # export .html/.md report sources
```

Its notebook reproduces the published totals within the PDF's rounding —
**NPV $78.7M • ROI 342% • Payback <6 months** — and the verification gate
asserts it on every headless run. See the study's README for details.

`studies/202512_TEI_Genesys_CX_Cloud/` follows the same shape (**NPV $10.8M
• ROI 266%**), with one signature input: the Genesys AI Experience token
line the published study models at $0, priced live from the client's quote.
`studies/202607_CTM_GenesysCX/` is the full multi-notebook reference
implementation.

### CLI

```bash
# Test connection
python -m palladium test

# List TEI tool instances
python -m palladium list

# List available report templates
python -m palladium reports

# Show financial summary for a tool
python -m palladium summary <public_id>

# Trigger server-side recalculation
python -m palladium calculate <public_id>

# Export for the report pipeline
python -m palladium export <public_id> -o export.json
```

### Tests

```bash
pytest tests/ -v
```

The root suite covers the API client (mocked HTTP), the financial math, and
the export envelope shape; the Amazon Connect verbatim anchor is asserted
against the published Forrester totals. Each study additionally carries its
own pinned suite (`cd studies/<slug> && pytest`).

---

## Adding a new study

Copy the template, not an existing study:

```bash
cp -r template/MercuryNotebook studies/YYYYMM_TEI_Vendor_Product
```

Then follow `template/MercuryNotebook/README.md`: rename `studylib/` to
your study package (underscores only — dashes break Python imports),
replace the toy model, re-pin the tests, rework the notebook.
`studies/202602_TEI_Amazon_Connect/` is the worked TEI example;
`studies/202607_CTM_GenesysCX/` is the full multi-notebook reference.

---

## TEI Methodology

Palladium implements the Forrester TEI™ framework.

### Benefit Categories

Benefits are quantified across categories, risk-adjusted, and discounted to present value:

| Category | Examples |
|----------|----------|
| **Cost Savings** | Legacy license elimination, reduced headcount, lower telecom |
| **Productivity** | Reduced handle time, faster training, automated QA |
| **Revenue** | Improved retention, better conversion, new channel revenue |
| **Risk Reduction** | Compliance automation, reduced legal exposure, audit readiness |

### Risk Adjustment

Each benefit carries a risk-adjustment factor (0–50%) reflecting implementation uncertainty.
A 20% risk adjustment on a $10M benefit yields a risk-adjusted value of $8M.
**Costs** are risk-adjusted **upward** by the same factor (higher risk → higher modelled cost).

### Financial Metrics

| Metric | Description |
|--------|-------------|
| **NPV** | Net Present Value — total risk-adjusted benefits minus costs, discounted |
| **ROI** | Return on Investment — `(benefits − costs) / costs × 100` |
| **Payback** | Months until cumulative benefits exceed cumulative costs |

The initial investment (year 0) is **not** discounted. Year-N cashflows are
discounted at the end of the year: `PV = CF_n / (1 + r)^n`. This matches
the Forrester methodology used in the published studies.

### Scenario Analysis

Three scenarios model uncertainty in adoption and realization
(see `core.calculations.SCENARIOS`):

| Scenario | Adoption | Risk delta | Effect |
|----------|----------|------------|--------|
| Conservative | 80% | +10pp on benefits | Lower benefits, higher modelled cost |
| Moderate | 100% | 0 | Base case (= published study) |
| Aggressive | 115% | –5pp on benefits | Higher benefits, lower padding on cost |

---

## Project Structure

```
palladium/
├── 00_setup.ipynb                     # ← START HERE: credentials + connection
├── Makefile                           # make setup / lab / test
├── core/                              # Shared, study-agnostic Python package
│   ├── bootstrap.py                   # one-import notebook setup (init, save_credentials)
│   ├── tei_client/                    # Athena API client
│   │   ├── client.py                  # TEIClient with all /api/v1/tei/ methods
│   │   └── models.py                  # Optional dataclasses for typed access
│   ├── calculations/                  # Pure-python financial math
│   │   ├── npv.py
│   │   ├── roi.py
│   │   ├── payback.py
│   │   └── scenarios.py
│   ├── export/
│   │   └── report_data.py             # JSON envelope for the report pipeline
│   └── cli/
│       └── main.py                    # `python -m palladium ...`
├── palladium/                         # CLI shim (just exposes `python -m palladium`)
│   └── __main__.py
├── template/
│   └── MercuryNotebook/               # copy-me pattern scaffold (runnable)
├── studies/                           # One self-contained folder per engagement
│   ├── 202512_TEI_Genesys_CX_Cloud/   # CX Cloud TEI — pattern Variant 4
│   │   ├── README.md                  # NPV $10.8M · ROI 266% + the $0 AI-token line
│   │   ├── teicalc/                   # self-contained engine (anchor/model/overlay)
│   │   ├── notebooks/business_case.ipynb
│   │   ├── tests/ · scripts/ · config.toml · pyproject.toml
│   │   └── docs/                      # Forrester PDF + Genesys token-metering notes
│   ├── 202602_TEI_Amazon_Connect/     # Amazon Connect TEI — pattern Variant 4
│   │   ├── README.md                  # NPV $78.7M · ROI 342%, reproduced + gated
│   │   ├── teicalc/                   # self-contained engine (anchor/model/overlay)
│   │   ├── notebooks/business_case.ipynb
│   │   ├── tests/ · scripts/ · config.toml · pyproject.toml
│   │   ├── exports/                   # generated; .gitignored
│   │   └── docs/
│   │       └── 202602_TEI Report Amazon Connect.pdf
│   └── 202607_CTM_GenesysCX/          # CTM × Genesys study — pattern reference impl
├── tests/                             # root tests for core/
│   ├── test_client.py
│   ├── test_calculations.py
│   └── test_export.py
├── Athena API.yaml                    # OpenAPI reference
├── .env.example
├── requirements.txt
├── pyproject.toml
└── README.md
```

---

## Athena Integration

Palladium connects to Athena's TEI module for data persistence and cross-tool reporting.

### API Endpoints Used

All endpoints are under `/api/v1/tei/` and require `Authorization: Api-Key {key}`.

| Endpoint | Purpose |
|----------|---------|
| `GET /api/v1/tei/reports/` | List available TEI report templates |
| `GET /api/v1/tei/reports/{public_id}/` | Get a report template |
| `GET /api/v1/tei/reports/{public_id}/fields/` | Get field definitions for a template |
| `POST /api/v1/tei/tools/` | Create a new TEI tool instance |
| `GET /api/v1/tei/tools/{public_id}/` | Get instance metadata |
| `PATCH /api/v1/tei/tools/{public_id}/` | Update name/status |
| `GET /api/v1/tei/tools/{public_id}/values/` | Get current field values |
| `PUT /api/v1/tei/tools/{public_id}/values/` | Bulk-update values |
| `PATCH /api/v1/tei/tools/{public_id}/values/{field_key}/` | Patch a single value |
| `POST /api/v1/tei/tools/{public_id}/calculate/` | Trigger calculation |
| `GET /api/v1/tei/tools/{public_id}/summary/` | Get financial summary |
| `GET /api/v1/tei/tools/{public_id}/versions/` | List version snapshots |
| `POST /api/v1/tei/tools/{public_id}/versions/` | Save a new version |
| `GET /api/v1/tei/tools/{public_id}/versions/{n}/` | Get a specific version |
| `GET /api/v1/tei/tools/{public_id}/export/` | Export for the report pipeline |
| `GET /api/v1/tei/summary/` | Aggregate NPV across all tools |

### Object model

| Athena object | Notes |
|---|---|
| **Opportunity** | Top-level sales record. Owns one or more **Proposals**. |
| **Proposal** | A specific bid/offer to a client. **A TEI tool is linked to a Proposal.** |
| **Engagement** | Optional — for active client engagements. A TEI tool may also link here. |
| **TEIReport** | Template (e.g. *Amazon Connect 2026*) — defines fields, discount rate, analysis horizon. |
| **TEITool** | Instance of a Report bound to a Proposal — holds values, summaries, versions. |

### Authentication

```
Authorization: Api-Key {your-api-key}
```

API keys are provisioned in Athena's admin interface per user/service account.

### Methodology conventions (Palladium ↔ Athena)

Two places where the Forrester methodology and the Athena TEI API differ, and
how Palladium bridges them:

| Topic | Athena behaviour | Palladium convention |
|---|---|---|
| **Cost risk adjustment** | Costs are never risk-adjusted server-side | Cost values are pushed pre-multiplied by `(1 + risk_adj)`; field-level adjustment stays 0 |
| **Year-0 "Initial" costs** | No year-0 concept; non-annual values are folded into Year 1 | Each cost gets a companion non-annual `<key>_initial` field. `TEIClient` folds them back into an `initial` key on read. Athena discounts these as Year 1 (Forrester doesn't discount Year 0) — expect ≈0.15% drift on cost PV |

---

## Report Pipeline Integration

Palladium's export produces structured JSON consumed by the LLM report generation pipeline:

```
Palladium Export (JSON)
    │
    ▼
Peitho — LLM generates HTML (following HTML_DOCUMENT_FORMAT.md)
    │
    ▼
html2docx converts to native Word
    │
    ▼
Professional TEI Report (.docx)
```

The export envelope (`core.export.build_report_data`) includes:
- All benefit categories with risk-adjusted values
- All cost categories with yearly breakdown (and Initial column)
- Financial summary (NPV, ROI, payback, yearly cashflow)
- Conservative / moderate / aggressive scenario analysis
- Metadata (study slug, proposal, engagement, generator stamp)
- The raw Athena `/export/` payload for reference

---

## Version Management

Athena keeps version history for TEI tools, driven through the API
(`core.tei_client`: `save_version` / `list_versions` / `get_version`):

1. **Save Version** — Snapshots current values + summary with a descriptive note
2. **View History** — All versions with headline metrics (NPV, ROI)
3. **Compare Versions** — Side-by-side diff of value changes between any two versions
4. **Restore Version** — Load a previous version's values as the current state

Version notes should capture:
- Assumptions made and their sources
- Which scenario the version represents
- What changed since the previous version
- Client confirmations or corrections

---

## Development

### Running Tests

```bash
pytest tests/ -v
```

Tests are designed to run without an Athena connection — HTTP is mocked
and the calculation suite uses the Amazon Connect seed data to verify the
Forrester numbers reproduce within rounding.

### Code Style

```bash
ruff check .
ruff format .
```

### Adding a New Benefit Category

1. Define the field in Athena's TEI Report admin (field name, type, category, defaults)
2. The field automatically appears in Palladium via the API — no client changes
3. Update notebook prose if category-specific commentary is needed
4. If the report template exposes a new structure, extend the envelope in
   `core/export/report_data.py`

---

## Dependencies

| Package | Version | Purpose |
|---------|---------|---------|
| `requests` | ≥2.31 | HTTP client for Athena API |
| `python-dotenv` | ≥1.0 | Environment configuration |
| `jupyter` | ≥1.0 | Notebook environment |
| `pandas` | ≥2.0 | Data manipulation |
| `plotly` | ≥5.18 | Interactive visualizations |
| `numpy` | ≥1.26 | Financial calculations |
| `pytest` | ≥7.4 | Testing |
| `ruff` | ≥0.1 | Linting and formatting |

---

## Related Projects

| Project | Relationship |
|---------|-------------|
| **Athena** | Platform API — data persistence, cross-tool reporting |
| **Peitho** | Document generation — consumes Palladium's export JSON |
| **html2docx** | Converts LLM-generated HTML to native Word documents |