1. Save the tools file

Save this as ~/.claude/looker-delete-tools.yaml%USERPROFILE%\.claude\looker-delete-tools.yaml:

kind: source
name: looker-rest
type: http
baseUrl: ${LOOKER_BASE_URL}/api/4.0
---
kind: tool
name: looker_get_token
type: http
source: looker-rest
method: POST
path: /login?client_id=${LOOKER_CLIENT_ID}&client_secret=${LOOKER_CLIENT_SECRET}
description: |
  Get a short-lived Looker API access token (expires in about an hour).
  Call this first, then pass the returned access_token value as
  "Bearer <access_token>" into the Authorization parameter of
  delete_look, delete_dashboard, delete_dashboard_element, or
  delete_dashboard_filter.
---
kind: tool
name: delete_look
type: http
source: looker-rest
method: DELETE
path: /looks/{{.lookId}}
description: |
  Permanently delete a Look by id. This cannot be undone. Look it up
  first (e.g. with get_looks) and confirm the exact name and id with
  the user before calling this. Call looker_get_token first for the
  Authorization value.
pathParams:
  - name: lookId
    type: string
    description: The id of the Look to delete, from get_looks.
headerParams:
  - name: Authorization
    type: string
    description: Bearer token from looker_get_token, e.g. "Bearer <access_token>".
---
kind: tool
name: delete_dashboard
type: http
source: looker-rest
method: DELETE
path: /dashboards/{{.dashboardId}}
description: |
  Permanently delete a dashboard by id. This skips the trash the
  Looker UI normally uses and cannot be undone. Look it up first
  (e.g. with get_dashboards) and confirm the exact name and id with
  the user before calling this. Call looker_get_token first for the
  Authorization value.
pathParams:
  - name: dashboardId
    type: string
    description: The id of the dashboard to delete, from get_dashboards.
headerParams:
  - name: Authorization
    type: string
    description: Bearer token from looker_get_token, e.g. "Bearer <access_token>".
---
kind: tool
name: delete_dashboard_element
type: http
source: looker-rest
method: DELETE
path: /dashboard_elements/{{.dashboardElementId}}
description: |
  Permanently remove a single tile from a dashboard, without deleting
  the whole dashboard. Confirm the exact tile and dashboard with the
  user first. Call looker_get_token first for the Authorization value.
pathParams:
  - name: dashboardElementId
    type: string
    description: The id of the dashboard tile (element) to remove.
headerParams:
  - name: Authorization
    type: string
    description: Bearer token from looker_get_token, e.g. "Bearer <access_token>".
---
kind: tool
name: delete_dashboard_filter
type: http
source: looker-rest
method: DELETE
path: /dashboard_filters/{{.dashboardFilterId}}
description: |
  Permanently remove a filter from a dashboard. Confirm the exact
  filter and dashboard with the user first. Call looker_get_token
  first for the Authorization value.
pathParams:
  - name: dashboardFilterId
    type: string
    description: The id of the dashboard filter to remove.
headerParams:
  - name: Authorization
    type: string
    description: Bearer token from looker_get_token, e.g. "Bearer <access_token>".
---
kind: toolset
name: looker_delete_tools
description: Delete operations for Foreman Intelligence, backed directly by the Looker REST API.
tools:
- looker_get_token
- delete_look
- delete_dashboard
- delete_dashboard_element
- delete_dashboard_filter

2. Point the connector at it

Open the config file holding the "looker-toolbox" entry Step 7 created (~/.claude.json%USERPROFILE%\.claude.jsonclaude_desktop_config.json, via Settings → Developer → Edit Config) and add a --config flag pointing at the tools file, right after --prebuilt looker. Same "looker-toolbox" entry, just extend the "args" list:

"args": [
  "--stdio", "--prebuilt", "looker",
  "--config", "/Users/your-username/.claude/looker-delete-tools.yaml"
]

"args": [
  "--stdio", "--prebuilt", "looker",
  "--config", "C:\\Users\\your-username\\.claude\\looker-delete-tools.yaml"
]

Before restarting, you can confirm the file parses by running the connector by hand. It should print a line saying it initialized 23 tools and 3 toolsets, then wait for input (press Ctrl+C to stop it). If it prints an error about the config file instead, the path or the YAML needs fixing:

/opt/homebrew/bin/toolbox --stdio --prebuilt looker --config ~/.claude/looker-delete-tools.yaml

& "$env:LOCALAPPDATA\mcp-toolbox\toolbox.exe" --stdio --prebuilt looker --config "$env:USERPROFILE\.claude\looker-delete-tools.yaml"

Restart any open Claude Code sessionFully quit and reopen Claude Desktop for the change to take effect. Deleting is just another MCP tool at this point, so it works the same in both Claude apps.

Once it's loaded, ask normally, like "delete the dashboard called Old Ops Overview", and Claude will look it up, confirm the exact name and id with you, then handle the rest itself.