# tasks_update

Update an existing task

Agent View of the PolicyLayer registry record for `tasks_update`. HTML page: https://policylayer.com/tools/0xk3vin-vikunja-mcp/tasks-update

## Facts

- Tool: `tasks_update`
- Server: Vikunja (`0xk3vin/vikunja-mcp`) — https://policylayer.com/tools/0xk3vin-vikunja-mcp.md
- Homepage: https://github.com/0xK3vin/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": "tasks_update",
    "arguments": {}
  }
}
```

## Why tasks_update is rated Medium

This tool modifies existing task data, which is a Write operation. The change is reversible (tasks can be updated again or reverted), so it does not qualify as Destructive. Severity is medium because unintended task modifications could disrupt workflow and project management, but the impact is limited to individual task metadata rather than bulk deletion or financial transactions.

From the tool's own definition: "Tool name is 'tasks_update' and description states 'Update an existing task', indicating modification of existing data in a reversible manner."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Vikunja (30)

- `buckets_delete` — Destructive — https://policylayer.com/tools/0xk3vin-vikunja-mcp/buckets-delete.md
- `labels_delete` — Destructive — https://policylayer.com/tools/0xk3vin-vikunja-mcp/labels-delete.md
- `projects_delete` — Destructive — https://policylayer.com/tools/0xk3vin-vikunja-mcp/projects-delete.md
- `task_assignees_remove` — Destructive — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-assignees-remove.md
- `task_labels_remove` — Destructive — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-labels-remove.md
- `task_relations_remove` — Destructive — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-relations-remove.md
- `tasks_delete` — Destructive — https://policylayer.com/tools/0xk3vin-vikunja-mcp/tasks-delete.md
- `buckets_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/buckets-list.md
- `labels_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/labels-list.md
- `notifications_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/notifications-list.md
- `ping` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/ping.md
- `project_views_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/project-views-list.md
- `projects_get` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/projects-get.md
- `projects_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/projects-list.md
- `task_assignees_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-assignees-list.md
- `task_comments_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-comments-list.md
- `tasks_get` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/tasks-get.md
- `tasks_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/tasks-list.md
- `teams_list` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/teams-list.md
- `users_search` — Read — https://policylayer.com/tools/0xk3vin-vikunja-mcp/users-search.md
- `buckets_create` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/buckets-create.md
- `labels_create` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/labels-create.md
- `projects_create` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/projects-create.md
- `projects_update` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/projects-update.md
- `task_assignees_add` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-assignees-add.md
- `task_comments_add` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-comments-add.md
- `task_labels_add` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-labels-add.md
- `task_move_to_bucket` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-move-to-bucket.md
- `task_relations_add` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/task-relations-add.md
- `tasks_create` — Write — https://policylayer.com/tools/0xk3vin-vikunja-mcp/tasks-create.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=0xk3vin-vikunja-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/0xk3vin-vikunja-mcp