---
title: Trello
description: Mount Trello workspaces, boards, lists, cards, members, and labels as a Mirage filesystem for Python agents.
icon: table-columns
---
The Trello resource exposes workspaces, boards, lists, cards, members, and
labels as a virtual filesystem mounted at some prefix such as `/trello/`.

For API key setup, see [Trello Setup](/python/setup/trello).

## Config

```python
import os

from mirage import MountMode, Workspace
from mirage.resource.trello import TrelloConfig, TrelloResource

config = TrelloConfig(
    api_key=os.environ["TRELLO_API_KEY"],
    api_token=os.environ["TRELLO_API_TOKEN"],
)
resource = TrelloResource(config=config)
ws = Workspace({"/trello": resource}, mode=MountMode.READ)
```

## Filesystem Layout

```text
/trello/
  workspaces/
    <workspace-name>__<workspace-id>/
      workspace.json
      boards/
        <board-name>__<board-id>/
          board.json
          members/
            <full-name>__<member-id>.json
            ...
          labels/
            <label-name>__<label-id>.json
            ...
          lists/
            <list-name>__<list-id>/
              list.json
              cards/
                <card-name>__<card-id>/
                  card.json
                  comments.jsonl
                ...
            ...
```

Example:

```text
/trello/
  workspaces/
    engineering__abc123def/
      workspace.json
      boards/
        product-roadmap__brd_001/
          board.json
          members/
            alice__mem_001.json
            bob__mem_002.json
          labels/
            bug__lbl_001.json
            feature__lbl_002.json
          lists/
            backlog__lst_001/
              list.json
              cards/
                fix-login__crd_001/
                  card.json
                  comments.jsonl
                add-search__crd_002/
                  card.json
                  comments.jsonl
            in-progress__lst_002/
              list.json
              cards/
                ...
```

Directory and file names embed the Trello ID after `__` so that
resource-specific commands can reference the correct resource without
extra lookups.

### Workspaces

Each workspace directory is named:

```text
<workspace-name>__<workspace-id>
```

Inside the workspace directory:

- `workspace.json` is the normalized workspace metadata
- `boards/` contains one directory per board

### Boards

Each board directory is named:

```text
<board-name>__<board-id>
```

Inside the board directory:

- `board.json` is the normalized board metadata
- `members/` contains one JSON file per board member
- `labels/` contains one JSON file per board label
- `lists/` contains one directory per list

### Lists

Each list directory is named:

```text
<list-name>__<list-id>
```

Each list directory contains:

- `list.json` -- normalized list metadata with fields such as `list_id`,
  `list_name`, `board_id`, `closed`, `pos`
- `cards/` contains one directory per card

### Cards

Each card directory is named:

```text
<card-name>__<card-id>
```

Each card directory contains:

- `card.json` -- normalized card metadata with command-aligned fields such as
  `card_id`, `board_id`, `list_id`, `member_ids`, `label_ids`, `due`, `url`
- `comments.jsonl` -- normalized comment stream ordered by `created_at`

`comments.jsonl` is a Mirage representation chosen for shell-friendly
workflows. It is not a native Trello file format.

### Members

Each member file is named:

```text
<full-name>__<member-id>.json
```

Member JSON includes command-aligned identifiers such as `member_id` and
`username` so the value can be reused directly in commands like
`trello-card-assign`.

### Labels

Each label file is named:

```text
<label-name>__<label-id>.json
```

Label JSON includes `label_id`, `label_name`, `color`, and `board_id`.

## Cache

Uses `IndexCacheStore` (same as other resources).

## Example

See `examples/trello/trello.py` for the full working example.

```bash
# List workspaces
ls /trello/workspaces/

# Read workspace metadata
cat /trello/workspaces/engineering__abc123/workspace.json

# List boards
ls /trello/workspaces/engineering__abc123/boards/

# Read board metadata
cat /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/board.json

# List lists
ls /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/

# Read a card
cat /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/backlog__lst_001/cards/fix-login__crd_001/card.json

# Read card comments
cat /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/backlog__lst_001/cards/fix-login__crd_001/comments.jsonl

# Extract card ID with jq
cat /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/backlog__lst_001/cards/fix-login__crd_001/card.json \
  | jq '.card_id'

# Read last 5 comments
tail -n 5 /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/backlog__lst_001/cards/fix-login__crd_001/comments.jsonl

# List members
ls /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/members/

# List labels
ls /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/labels/

# Tree view
tree -L 2 /trello/workspaces/
```

## Finding IDs

IDs are embedded in directory and file names after `__`:

```bash
# Workspace ID -- embedded in directory name
ls /trello/workspaces/
# -> engineering__abc123   <- workspace_id = abc123

# Board ID -- embedded in board directory name
ls /trello/workspaces/engineering__abc123/boards/
# -> roadmap__brd_001   <- board_id = brd_001

# List ID -- embedded in list directory name
ls /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/
# -> backlog__lst_001   <- list_id = lst_001

# Card ID -- embedded in card directory name
ls /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/backlog__lst_001/cards/
# -> fix-login__crd_001   <- card_id = crd_001

# Member ID -- embedded in member file name
ls /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/members/
# -> alice__mem_001.json   <- member_id = mem_001

# Label ID -- embedded in label file name
ls /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/labels/
# -> bug__lbl_001.json   <- label_id = lbl_001

# Use stat for structured metadata
stat /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/backlog__lst_001/cards/fix-login__crd_001/card.json

# Extract fields with jq
cat /trello/workspaces/engineering__abc123/boards/roadmap__brd_001/lists/backlog__lst_001/cards/fix-login__crd_001/card.json \
  | jq '{card_id, board_id, list_id, member_ids, label_ids}'
```

## Shell Commands

Standard commands available on the mounted Trello tree:

| Command         | Notes                                      |
| --------------- | ------------------------------------------ |
| `ls`            | List workspaces, boards, lists, cards      |
| `cat`           | Read .json metadata or .jsonl comments     |
| `head` / `tail` | First/last N lines                         |
| `grep` / `rg`   | Pattern search (file or directory level)   |
| `jq`            | Query JSON fields                          |
| `wc`            | Line/word/byte counts                      |
| `stat`          | File metadata (name, size, type)           |
| `find`          | Recursive search with `-name`, `-maxdepth` |
| `tree`          | Directory tree view                        |
| `basename`      | Extract file name from path                |
| `dirname`       | Extract directory from path                |
| `realpath`      | Resolve path to absolute form              |

## Resource-Specific Commands

### `trello-card-create`

Create a new card. Description can be passed via `--desc`, `--desc_file`, or stdin.

```bash
trello-card-create --list_id LST123 --name "Fix login"
trello-card-create --list_id LST123 --name "Fix login" --desc "Details here"
cat brief.md | trello-card-create --list_id LST123 --name "Agent bug"
```

| Option        | Required | Description                         |
| ------------- | -------- | ----------------------------------- |
| `--list_id`   | yes      | Trello list ID                      |
| `--name`      | yes      | Card name                           |
| `--desc`      | no       | Inline description text             |
| `--desc_file` | no       | Path to file containing description |

### `trello-card-update`

Update an existing card. Description can be passed via `--desc`, `--desc_file`, or stdin.

```bash
trello-card-update --card_id CRD123 --name "Updated title"
trello-card-update --card_id CRD123 --desc "New description"
trello-card-update --card_id CRD123 --closed true
```

| Option        | Required | Description                         |
| ------------- | -------- | ----------------------------------- |
| `--card_id`   | yes      | Trello card ID                      |
| `--name`      | no       | New card name                       |
| `--desc`      | no       | Inline description text             |
| `--desc_file` | no       | Path to file containing description |
| `--due`       | no       | Due date                            |
| `--closed`    | no       | Archive card (true/false)           |

### `trello-card-move`

Move a card to a different list.

```bash
trello-card-move --card_id CRD123 --list_id LST999
```

| Option      | Required | Description    |
| ----------- | -------- | -------------- |
| `--card_id` | yes      | Trello card ID |
| `--list_id` | yes      | Trello list ID |

### `trello-card-assign`

Assign a member to a card.

```bash
trello-card-assign --card_id CRD123 --member_id MEM001
```

| Option        | Required | Description      |
| ------------- | -------- | ---------------- |
| `--card_id`   | yes      | Trello card ID   |
| `--member_id` | yes      | Trello member ID |

### `trello-card-comment-add`

Add a comment to a card. Text can be passed via `--text`, `--text_file`, or stdin.

```bash
trello-card-comment-add --card_id CRD123 --text "Looks good"
cat note.md | trello-card-comment-add --card_id CRD123
```

| Option        | Required | Description                  |
| ------------- | -------- | ---------------------------- |
| `--card_id`   | yes      | Trello card ID               |
| `--text`      | \*       | Inline comment text          |
| `--text_file` | \*       | Path to file containing text |

\* One of `--text`, `--text_file`, or stdin is required.

### `trello-card-comment-update`

Update an existing comment. Text can be passed via `--text`, `--text_file`, or stdin.

```bash
trello-card-comment-update --comment_id CMT001 --card_id CRD123 --text "Updated text"
```

| Option         | Required | Description                  |
| -------------- | -------- | ---------------------------- |
| `--comment_id` | yes      | Trello comment ID            |
| `--card_id`    | yes      | Trello card ID               |
| `--text`       | \*       | Inline comment text          |
| `--text_file`  | \*       | Path to file containing text |

\* One of `--text`, `--text_file`, or stdin is required.

### `trello-card-label-add`

Add a label to a card.

```bash
trello-card-label-add --card_id CRD123 --label_id LBL001
```

| Option       | Required | Description     |
| ------------ | -------- | --------------- |
| `--card_id`  | yes      | Trello card ID  |
| `--label_id` | yes      | Trello label ID |

### `trello-card-label-remove`

Remove a label from a card.

```bash
trello-card-label-remove --card_id CRD123 --label_id LBL001
```

| Option       | Required | Description     |
| ------------ | -------- | --------------- |
| `--card_id`  | yes      | Trello card ID  |
| `--label_id` | yes      | Trello label ID |