# Related Tasks, subtasks and AI chats

Split independently owned work, link dependencies and keep existing AI chats with a Task without launching another agent.

## Keep the work connected

Open a Task's **Work and sessions** area to connect related Tasks and the AI chats working on them. These links add context without changing the owner, deadline or completion state of the work.

## Split only when the pieces need their own tracking

Use a checklist for steps that share one owner and deadline. Choose **Add subtask** when a piece needs its own owner, date, status or completion evidence. A subtask is an ordinary Task: it can finish or become blocked independently, and finishing it does not automatically finish its parent.

Enter a deadline when the child needs a different date. If you leave it empty, it inherits the parent's date. Check the created Task before continuing.

## Link existing work

Choose **Link work** instead of creating a duplicate Task. Use:

- **Part of** for a piece of a larger result;
- **Depends on** when work needs another Task to finish;
- **Related to** for useful context without an ordering requirement.

The linked Task retains its own status and owner. A relationship is not a grant of access to another company's records.

## Keep an AI chat with its Task

Choose **Link chat** to associate an existing chat you own. One Task can have several chats, and one chat can contribute to several Tasks. Linking a chat does not start an agent, resume a conversation, invite participants or share its private content.

Read execution state separately from Task state. A queued, waiting, failed or finished chat describes the execution, not whether the customer or business outcome has been achieved. Keep the next action, evidence and any remaining blocker on the Task.

## Read usage correctly

A chat's session-token total is not automatically the usage charged to every linked Task. Task-attributed usage and cost depend on the available execution records. Missing, partial or stale usage remains labelled rather than treated as zero.

[Tasks](/tasks/overview) holds the work. [Planning](/planning/overview) holds the measurable goal. [Calendar](/calendar/overview) holds the time commitment.

Canonical: https://docs.boni.one/tasks/related-work-and-sessions
Version: 1
Updated: 2026-10-25T07:34:57.148Z