> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rffl.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Team Registry

> Canonical RFFL team and owner registry overview.

The team registry is the canonical source for team-season records, team codes, owner codes, co-ownership, and historical participation.

## Registry Facts

| Field                 | Value                   |
| --------------------- | ----------------------- |
| Canonical document ID | `RFFL-REG-TEAMS-001`    |
| Version               | `1.0.1`                 |
| Status                | canonical               |
| Last validated        | 2025-12-22              |
| Total records         | 278 team-season records |
| Covered seasons       | 2002 through 2025       |
| Unique team codes     | 31                      |
| Unique owners         | 29                      |

## Query Use

Use the registry before answering questions about:

| Question type                    | Required source                                       |
| -------------------------------- | ----------------------------------------------------- |
| Who owned a team in a season?    | `registries/RFFL_REG_TEAMS_001.py`                    |
| What team code is canonical?     | `registries/RFFL_REG_TEAMS_001.py` and alias registry |
| Was a team co-owned?             | `registries/RFFL_REG_TEAMS_001.py`                    |
| Which teams existed in a season? | `registries/RFFL_REG_TEAMS_001.py`                    |

## Detail Pages

| Page                                       | Use it for                                                   |
| ------------------------------------------ | ------------------------------------------------------------ |
| [Team Codes](/registries/team-codes)       | code handling and canonical identifiers                      |
| [Owner History](/registries/owner-history) | season participation, ownership, and co-ownership boundaries |
| [Team Aliases](/registries/aliases)        | ESPN and historical alias resolution                         |
| [Registry Usage](/registries/usage)        | how to answer lookup questions safely                        |

## Source Paths

| Source                             | Purpose                       |
| ---------------------------------- | ----------------------------- |
| `registries/RFFL_REG_TEAMS_001.py` | Canonical code registry       |
| `registries/canonical_teams.csv`   | Team-by-season reference      |
| `registries/rffl-reg-teams-002.md` | Human-readable alias registry |