# TRELLO_ADD_BOARDS_MARK_AS_VIEWED_BY_ID_BOARD

Marks the Trello board specified by idBoard as viewed for the current user, exclusively updating its viewed status and potentially influencing its position in user-specific lists and notification settings.

Agent View of the PolicyLayer registry record for `TRELLO_ADD_BOARDS_MARK_AS_VIEWED_BY_ID_BOARD`. HTML page: https://policylayer.com/tools/trello/trello-add-boards-mark-as-viewed-by-id-board

## Facts

- Tool: `TRELLO_ADD_BOARDS_MARK_AS_VIEWED_BY_ID_BOARD`
- Server: Trello (`mcp-server-trello`) — https://policylayer.com/tools/trello.md
- Install: `npx -y mcp-server-trello`
- Homepage: git+https://github.com/Infall-Insurance/mcp-server-trello.git
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 1
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `idBoard` | string | no | The unique identifier of the Trello board to be marked as viewed. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "TRELLO_ADD_BOARDS_MARK_AS_VIEWED_BY_ID_BOARD",
    "arguments": {}
  }
}
```

## Why TRELLO_ADD_BOARDS_MARK_AS_VIEWED_BY_ID_BOARD is rated Medium

This tool creates or modifies data reversibly by updating a user's board viewing status. It does not retrieve data (Read), execute arbitrary code (Execute), irreversibly delete data (Destructive), or move money (Financial). The blast radius is minimal—a misused tool could only clutter the user's board view history or notification priorities, with no data loss or financial impact.

From the tool's own definition: "Tool description states it 'marks the Trello board specified by idBoard as viewed' and 'updating its viewed status'. The verb 'marks' and 'updating' indicate modification of data (board viewed status)."

## Use case

AI agents use TRELLO_ADD_BOARDS_MARK_AS_VIEWED_BY_ID_BOARD to create or update resources in Trello, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Trello environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Trello:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "TRELLO_ADD_BOARDS_MARK_AS_VIEWED_BY_ID_BOARD": {
      "limits": [
        {
          "counter": "trello_add_boards_mark_as_viewed_by_id_board_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Trello (199)

- `TRELLO_ADD_LISTS_ARCHIVE_ALL_CARDS_BY_ID_LIST` — Destructive — https://policylayer.com/tools/trello/trello-add-lists-archive-all-cards-by-id-list.md
- `TRELLO_ADD_LISTS_MOVE_ALL_CARDS_BY_ID_LIST` — Destructive — https://policylayer.com/tools/trello/trello-add-lists-move-all-cards-by-id-list.md
- `TRELLO_ADD_NOTIFICATIONS_ALL_READ` — Destructive — https://policylayer.com/tools/trello/trello-add-notifications-all-read.md
- `TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD` — Destructive — https://policylayer.com/tools/trello/trello-convert-checklist-item-to-card.md
- `TRELLO_DELETE_ACTIONS_BY_ID_ACTION` — Destructive — https://policylayer.com/tools/trello/trello-delete-actions-by-id-action.md
- `TRELLO_DELETE_BOARDS_MEMBERS_BY_ID_BOARD_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-boards-members-by-id-board-by-id-member.md
- `TRELLO_DELETE_BOARDS_POWER_UPS_BY_ID_BOARD_BY_POWER_UP` — Destructive — https://policylayer.com/tools/trello/trello-delete-boards-power-ups-by-id-board-by-power-up.md
- `TRELLO_DELETE_CARDS_ACTIONS_COMMENTS_BY_ID_CARD_BY_ID_ACTION` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-actions-comments-by-id-card-by-id-action.md
- `TRELLO_DELETE_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-attachments-by-id-card-by-id-attachment.md
- `TRELLO_DELETE_CARDS_BY_ID_CARD` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-by-id-card.md
- `TRELLO_DELETE_CARDS_CHECKLISTS_BY_ID_CARD_BY_ID_CHECKLIST` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-checklists-by-id-card-by-id-checklist.md
- `TRELLO_DELETE_CARDS_ID_MEMBERS_BY_ID_CARD_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-id-members-by-id-card-by-id-member.md
- `TRELLO_DELETE_CARDS_LABELS_BY_ID_CARD_BY_COLOR` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-labels-by-id-card-by-color.md
- `TRELLO_DELETE_CARDS_MEMBERS_VOTED_BY_ID_CARD_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-members-voted-by-id-card-by-id-member.md
- `TRELLO_DELETE_CARDS_STICKERS_BY_ID_CARD_BY_ID_STICKER` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-stickers-by-id-card-by-id-sticker.md
- `TRELLO_DELETE_CHECKLIST_ITEM` — Destructive — https://policylayer.com/tools/trello/trello-delete-checklist-item.md
- `TRELLO_DELETE_CHECKLISTS_BY_ID_CHECKLIST` — Destructive — https://policylayer.com/tools/trello/trello-delete-checklists-by-id-checklist.md
- `TRELLO_DELETE_LABELS_BY_ID_LABEL` — Destructive — https://policylayer.com/tools/trello/trello-delete-labels-by-id-label.md
- `TRELLO_DELETE_MEMBER_BOARD_BACKGROUND` — Destructive — https://policylayer.com/tools/trello/trello-delete-member-board-background.md
- `TRELLO_DELETE_MEMBER_CUSTOM_STICKER` — Destructive — https://policylayer.com/tools/trello/trello-delete-member-custom-sticker.md
- `TRELLO_DELETE_MEMBER_SAVED_SEARCH` — Destructive — https://policylayer.com/tools/trello/trello-delete-member-saved-search.md
- `TRELLO_DELETE_MEMBERS_BOARD_STARS_BY_ID_MEMBER_BY_ID_BOARD_STAR` — Destructive — https://policylayer.com/tools/trello/trello-delete-members-board-stars-by-id-member-by-id-board-star.md
- `TRELLO_DELETE_ORG_ASSOCIATED_DOMAIN` — Destructive — https://policylayer.com/tools/trello/trello-delete-org-associated-domain.md
- `TRELLO_DELETE_ORGANIZATIONS_BY_ID_ORG` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-by-id-org.md
- `TRELLO_DELETE_ORGANIZATIONS_LOGO_BY_ID_ORG` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-logo-by-id-org.md
- `TRELLO_DELETE_ORGANIZATIONS_MEMBERS_ALL_BY_ID_ORG_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-members-all-by-id-org-by-id-member.md
- `TRELLO_DELETE_ORGANIZATIONS_MEMBERS_BY_ID_ORG_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-members-by-id-org-by-id-member.md
- `TRELLO_DELETE_ORGANIZATIONS_PREFS_ORG_INVITE_RESTRICT_BY_ID_ORG` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-prefs-org-invite-restrict-by-id-org.md
- `TRELLO_DELETE_TOKENS_BY_TOKEN` — Destructive — https://policylayer.com/tools/trello/trello-delete-tokens-by-token.md
- `TRELLO_DELETE_TOKENS_WEBHOOKS_BY_TOKEN_BY_ID_WEBHOOK` — Destructive — https://policylayer.com/tools/trello/trello-delete-tokens-webhooks-by-token-by-id-webhook.md
- …and 169 more: https://policylayer.com/tools/trello.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=trello · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/trello