Campfyrr vs Slack Code and Linear: hearing what the agents assumed before it ships
By Soumen Sarkar · October 2026
Comparison. If you want to watch and steer one agent task where you already work, use Slack Code or Linear. If you keep finding out what the agents assumed only after it shipped, use Campfyrr. Many teams have both problems.
What are you trying to fix?
If you want to watch and steer one agent task where you already work, use Slack Code or Linear. If you keep finding out what the agents assumed only after it shipped, use Campfyrr. Many product teams have both problems, and the two fit together.
Here are the problems product managers and founders describe, and which tool fixes each:
- "I want to see the change before it goes in." Slack Code. Each task gets a channel with the agent's plan, the changes and a live preview, and a named person approves before anything is committed (Salesforce Trailhead).
- "I want work to start from the ticket and report back to it." Linear. Its coding sessions run on a ticket, teammates steer them in the thread, and Pulse writes you a morning summary of the projects you follow (Linear changelog, Linear docs).
- "The agents keep guessing about things only I know, and I hear about it from a customer." Campfyrr. When an agent assumes something, the question goes to the person best placed to answer it, and the answer goes back into the work.
The same day, with each
This is a scene, not a customer. Three developers and a product manager are building refunds into a checkout. Each developer runs an agent on a different part: the refund button, the refund email, the payment call.
With Slack Code or Linear. The payment task has its own channel. The plan is clear and the preview works: press refund, the money goes back. On line four of the plan, the agent assumed refunds always go back to the original card. It's a reasonable guess. The product manager knows something the agent doesn't: support promised customers with expired cards store credit instead. She's following three channels that day, she approves a preview that looks right, and it ships on Thursday. On Friday a customer writes in because her refund went to a card that no longer exists. A developer spends the afternoon on a fix, and support writes an apology. In Linear the story is the same; the guess sits in the session thread, and the next morning Pulse tells her the refunds project moved forward.
With Campfyrr. The same agent records the same guess as an assumption. It reaches the product manager as a link on Tuesday morning: "Refunds go back to the original card." She corrects it in one line: expired cards get store credit. The answer reaches the agent at its next turn, before the code is finished. She adds the store-credit promise as business context to the refunds area, so the agent building the refund email is told too. At the end of the day she reads the project's "Where are we?" page in plain words. Nobody ran a command. Campfyrr never showed her a preview; she still opens the channel for that. See what a session gets.
The difference at the end of the week: one team fixes a shipped mistake on Friday, the other answers a question on Tuesday.
When Slack Code or Linear is the better choice
- You have one or two agent tasks at a time. You can read every plan yourself, and nothing slips between them.
- You want to see and approve the result. Slack Code shows a live preview and asks a named person before committing. Campfyrr has no preview and no approve buttons.
- Your work lives in tickets. Linear is the tracker and runs the agent. Campfyrr does neither.
- Your team won't open another tab. Slack Code and Linear are already where people are. Campfyrr posts its milestones into Slack, but its answers live behind links.
What it costs
Take 5 developers and 3 business teammates.
- Slack: Pro at $7.25 per user a month billed yearly, so eight seats at $7.25 is $58 a month (Slack pricing, read through search results). Agent access is arranged and paid separately (Techzine).
- Linear: Basic at $10 per user a month billed yearly, so eight seats at $10 is $80 a month (Linear pricing, read through search results). Coding sessions use AI credits. We couldn't confirm which plans include Pulse.
- Campfyrr: five developers at $7 billed yearly is $35 a month ($45 billed monthly). The three business teammates read and answer for free, and everything is free during early access (pricing).
The cost that matters more is attention. Slack Code and Linear need someone to start each task and someone to watch it. Campfyrr needs nobody to run anything. The product manager answers the questions sent to her, from a link.
More on how people outside engineering follow agent work, the wider problems of nobody knowing what shipped and silos at agent speed, and every product here in our research.
Verdict
Choose Slack Code or Linear if you want to watch, steer and approve one task where your team already works, and a few tasks at a time is your normal week.
Choose Campfyrr if several people run agents on one product, and you keep hearing what the agents assumed from customers instead of from the agents.
Use both if you want to see each change in Slack or Linear and also want the agents' guesses to reach you before they ship. Campfyrr's milestones land in the same Slack channels.
The problem this answers: Nobody knows what shipped: "I can't tell my CEO or PM what shipped."
The principle behind this: Let the work speak: Our work explains itself, so nobody ever has to come and ask us.
Move as one at agent speed. Nobody waits. Add Campfyrr to Claude: it briefs every agent before it touches the code, keeps assumptions and handoffs where the team can see them, and never takes your code (what it keeps).