Katasu

Turn conversations into tasks

Work from conversations
brought onto a board.

Katasu captures requests shared in Slack as tasks.See owners, deadlines, and progress on a single board.

Support for LINE and email is coming!

Preview of work progressing from Slack

Bring together the place where work starts
and the place where work is managed.

Automatic task creation

Conversations become work

  • From the moment a request is made in Slack, Katasu recognizes it as work
  • No need to copy tasks into another tool
Katasu suggesting a work candidate from a Slack requestKatasu saved confirmation screen
Work status at a glance

See the present state of work naturally.

  • Who owns it, when it is due, and what is happening now.
  • See the state of work in Slack at a glance
Work status synchronized between Katasu and Slack

Thoughtful features that move work forward

From notes,
create tasks in bulk

Turn meeting notes into tasks.

Extract tasks in bulk

Extract multiple tasks from text and documents.

⌕ AttachExtract

Your work
at a glance

See all work with owners and deadlines in one place.

Today’s tasks
Project A
  • Prepare proposal materials
  • Send sales email
Project B
  • Call to confirm the appointment

Work moves forward through more than tasks.

Conversation and decisions are what move work forward.

AI has made execution faster.

At the same time,time spent waiting for review and approvalstill remains.

Katasu organizeswhere and why work is stuck.

Whose decision is needed? What is missing to make it?

AI gathers the information needed so thatpeople can focus on decisions.

Request
1 day
Execution
1 week
Human review and approval

Waiting timeAbout one week

* An example of how work progresses

From “Who should I ask?”
to “What do we need to know to decide?”

* Rolling out progressively
Katasu VM asking questions before preparing materials

Even when AI can execute work,
people must decide the goal and how much to delegate.

Based on the state of work and past decisions, Katasu asks
what people need to decide now.

Once the decision is made, execution goes to AI agents such as Codex.
KatasuKatasu connects human decisions with AI execution.

Security

Data handling

  • Katasu does not store the content of Slack messages
  • Only necessary information such as owners, deadlines, and status is stored
  • The latest conversation is retrieved from Slack when needed

AI data usage

  • Your data is not used to train Katasu AI models
  • AI providers are disclosed
  • Optional API registration (currently in development)

Data security

  • Stored data is encrypted with AES-256
  • Communications are encrypted with TLS
  • Private channels are shown according to member permissions

Frequently asked questions

How is Katasu different from other task and reminder tools?

Many task tools become disconnected because the place where work starts is separate from the place where it is managed.

While reminder tools follow registered tasks, Katasu uses AI to understand the current state of work from conversations and track changes.

How are members counted?

Members who view or edit tasks in Katasu or participate in task management count toward the member total.

Conversations in connected Slack channels are tracked, including posts from members who do not use Katasu.

How can we see the work of the whole team?

A kanban view shows who owns what and which work is stuck without searching through conversations again.

Project features for grouping multiple channels are planned.

What happens when we reach the AI quota?

When the quota is reached, AI processing pauses and you are notified in Slack.

Processing can resume automatically when the quota renews.

AI usage and limits

Does editing a Slack message update the task?

Existing tasks are not automatically rewritten when Slack messages are edited.

Katasu does not store Slack message content and retrieves the latest conversation from Slack when needed.

Can I use Katasu from AI agents such as Codex or Claude Code?

Use Katasu CLI to view and update tasks from a terminal or AI agent.

JSON output is supported, so agents such as Codex and Claude Code can use it too.

View the CLI guide