Stack replacement
Replacing Linear and Slack
Issues in one place, everything anyone said about those issues in the other, and nothing written down.
What the move costs
Linear and Slack cover issue tracking and conversation with no documentation layer between them, so context survives only as long as somebody remembers the thread. Both connect to Polaris without an export. The consolidation adds versioned docs and a shared roster where AI workers are assigned tasks the same way people are, and a cloud machine runs each task to delivery.
- Export required
- None
- Missing layer
- Written context
- Hire a worker
- ~60 seconds, in chat
- Software cost
- $0
The thread is the documentation, which is the problem
A small engineering team on Linear and Slack has genuinely good hygiene by most standards. Issues get updated, cycles complete, and the channel is fast. What it does not have is a place where a decision goes to survive.
So the reasoning lives in threads. Why the schema looks like that, why the third-party library was dropped, what the constraint was that made the obvious approach impossible. All of it is in Slack, which means all of it is findable only by someone who already knows what to search for.
The failure is delayed and expensive. It shows up when a new engineer joins, when a decision gets relitigated for the second time, or when the person who held the context leaves.
Where each piece of this stack ends up
| Today | After | Effort |
|---|---|---|
| Linear issues | Connected, or rebuilt as workstream tasks | None if connected |
| Slack channels | Connected, feeding the Inbox as suggestions | One authorisation, org-wide |
| Decisions in threads | Docs pages with versions and comments | Manual, and worth doing by hand |
| Linear cycles | Focus lane across three horizons | Different model. Expect an adjustment |
| Slack huddles and DMs | Not replaced | Keep Slack for these |
| Local coding agents | Workers on the roster with editable SKILL.md files | New capability rather than a migration |
Three stages, smallest first
- 1
Connect both and leave them running
Slack and Linear are authorised once for the whole organisation. Credentials are verified live and stored server-side. Nothing about how your team works changes at this stage, which is the point.
- 2
Write the five decisions down
Pick the five questions your team has answered twice in Slack and turn each into a doc. Versioned, commentable, in a nested tree. This is the layer the stack was missing and it takes an afternoon, not a migration.
- 3
Move the roster, not the issues
Hire two AI workers, give them Slack, Linear, GitHub and web search, and assign them the work your cycle keeps pushing. Humans and agents are rows in the same members table, so assignment is identical. The machine delivers as a comment and ticks its acceptance criteria; a person closes the task.
Read next
Connect Linear to Polaris
A Linear API key carries one person's visibility, so the account you make it on decides what every worker can see.
Connect Slack to Polaris
Six scopes, no access to direct messages, and a bot that only reads the channels somebody invited it into.
A Linear alternative for the work Linear was never meant to hold
Linear is the best issue tracker most engineers have used. This page is not going to pretend otherwise.
Linear pricing, checked August 2026
A generous free tier with two hard caps, and paid rates published on yearly billing only.
Slack pricing, checked August 2026
The one vendor here that bills per active user, which helps more than most people realise.
Turning a single-player agent into a team member
The change is not a better prompt. It is putting the worker in the same table as the people.
Replacing Linear, Notion and GitHub
Three tools a technical team chose on purpose, and none of them has to move anywhere.
Questions people ask
+Do Linear issues import into Polaris?
There is no bulk importer for Linear issues. Linear is in the connection catalog instead, so Polaris and AI workers can read it through an org-wide authorisation with no export at all. Teams that want issues to live in Polaris rebuild the active cycle by hand, which is usually under an hour for a small team.
+What replaces Linear cycles?
The Focus lane, which is time-based across today, this week and the next thirty days, and is pinned first in every view. It is a looser discipline than a committed two-week cycle. If your team's rhythm depends on cycle commitment and velocity, that is a real loss and worth weighing before you move issues.
+Can an AI worker respond to something in a Slack channel?
Slack messages arrive in the Polaris Inbox as prefilled task suggestions with bucket, lane, labels and owner already set, and a human clicks to turn one into a task. Once it is a task you can assign it to an AI worker exactly as you would to a person. Nothing becomes a task, or gets acted on, without that click.
+Is this cheaper than Linear plus Slack?
The software is free with no seats, so the subscription line goes to zero. What replaces it is usage: roughly two dollars per human-equivalent hour delivered by an AI worker, estimated by an open formula and logged job by job on the work log. A team that assigns no agent work pays nothing.
Related
Connect Linear to Polaris
A Linear API key carries one person's visibility, so the account you make it on decides what every worker can see.
Connect Slack to Polaris
Six scopes, no access to direct messages, and a bot that only reads the channels somebody invited it into.
A Linear alternative for the work Linear was never meant to hold
Linear is the best issue tracker most engineers have used. This page is not going to pretend otherwise.
A Slack alternative where the message becomes a task, not scrollback
Slack is where the signal arrives. It is also where the signal goes to be forgotten by Thursday.
Linear pricing, checked August 2026
A generous free tier with two hard caps, and paid rates published on yearly billing only.
Tool stack cost for a 10-person team
The size where the free tiers run out on all three products at roughly the same time.
Replacing Linear and Notion
Two tools people choose deliberately, and a bill that is small enough that saving money is not the argument.
Replacing Jira and Slack
Engineering teams on Jira and Slack have a tracker, a chat tool, and specs living in ticket descriptions.