# vikunja_auth

Manage authentication with Vikunja API (connect, status, refresh, disconnect)

Agent View of the PolicyLayer registry record for `vikunja_auth`. HTML page: https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-auth

## Facts

- Tool: `vikunja_auth`
- Server: Vikunja MCP Server (`democratize-technology/vikunja-mcp`) — https://policylayer.com/tools/democratize-technology-vikunja-mcp.md
- Homepage: https://github.com/democratize-technology/vikunja-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

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

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

## Why vikunja_auth is rated Medium

Authentication management tools create, modify, or invalidate tokens and session state. While not destructive of data itself, misuse could grant unauthorized access to the instance, enable privilege escalation, or invalidate legitimate user sessions. This is a Write-category risk because it modifies system state (authentication tokens/sessions) reversibly—a user could re-authenticate.

From the tool's own definition: "Tool description explicitly states 'connect, disconnect' operations which modify authentication state. 'Refresh' modifies tokens. These are state-changing operations that affect access control and session management for the Vikunja API."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Vikunja MCP Server (22)

- `vikunja_projects_crud` — Destructive — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-projects-crud.md
- `vikunja_task_bulk` — Destructive — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-task-bulk.md
- `vikunja_task_crud` — Destructive — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-task-crud.md
- `vikunja_tasks` — Destructive — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-tasks.md
- `vikunja_request_user_export` — Execute — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-request-user-export.md
- `vikunja_download_user_export` — Read — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-download-user-export.md
- `vikunja_export_project` — Read — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-export-project.md
- `vikunja_filters` — Read — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-filters.md
- `vikunja_batch_import` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-batch-import.md
- `vikunja_labels` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-labels.md
- `vikunja_projects` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-projects.md
- `vikunja_projects_hierarchy` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-projects-hierarchy.md
- `vikunja_projects_sharing` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-projects-sharing.md
- `vikunja_task_assignees` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-task-assignees.md
- `vikunja_task_comments` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-task-comments.md
- `vikunja_task_labels` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-task-labels.md
- `vikunja_task_relations` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-task-relations.md
- `vikunja_task_reminders` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-task-reminders.md
- `vikunja_teams` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-teams.md
- `vikunja_templates` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-templates.md
- `vikunja_users` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-users.md
- `vikunja_webhooks` — Write — https://policylayer.com/tools/democratize-technology-vikunja-mcp/vikunja-webhooks.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=democratize-technology-vikunja-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/democratize-technology-vikunja-mcp