Async Communication · For Engineering Teams

Conversations that keep their place.

Threadline gives distributed engineering teams a calm, structured home for async discussions — threaded by default, archived by intent, and never lost to the scroll.

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Draft Thread Review Resolve Archive

threadline · #payments-service · design-review

01// Async thread — posted 3 hours ago 02@lena proposed in "Retry backoff strategy" 03 04thread.open("retry-backoff-v2") { 05 // context auto-attached from linked PR #841 06 proposal: "Exponential jitter, base=200ms" 07 status: awaiting_review 08 09 reply(@marcus) { 10 "Looks right. Can we cap at 5s?" 11 suggestion: "max_backoff = 5000" 12 } 13 14 resolve() → archived to "payments/decisions" 15}

What Threadline does

Structure for the conversations that matter.

Not every message needs a meeting. Threadline gives engineering teams the tools to think in writing — with the same care they bring to code.

Threaded by default

Every message lives inside a thread with a title, an intent, and a resolution state. No more buried decisions in a scrolling wall of text.

threads.autoTitle = true

Context attached, not lost

Link a thread to a PR, an issue, a design doc, or a runbook. Threadline pulls in the diff, the status, and the relevant lines automatically.

context.attach(pr: #841)

Async by design

Write when you think clearly. Reply when you're ready. Threadline respects deep work — no presence dots, no read receipts, no urgency theater.

notifications.batch = "daily"

Archived by intent

Resolved threads become searchable decisions — tagged by topic, linked to the code that shipped from them. Your team's reasoning, indexed.

archive.index(topic: "payments")

Works with your stack

Threadline sits beside your tools, not on top of them.

Native integrations with the services your engineering team already uses. No middleware, no custom webhooks to maintain.

GitHub

PRs, issues, reviews

Linear

Issues, cycles, status

Notion

Docs, pages, databases

GitLab

MRs, pipelines, merges

Sentry

Errors, alerts, traces

Jira

Tickets, sprints, boards

Figma

Designs, comments, frames

PagerDuty

Incidents, on-call, escalations

A day with Threadline

From question to decision, without a meeting.

A typical Threadline flow: an engineer opens a thread with a proposal, attaches the relevant PR, and tags a reviewer. Replies arrive async. When the thread resolves, the decision is archived and indexed — findable months later by anyone who wasn't in the room.

01
Open a thread with intent Title it, declare the outcome you want — review, decision, FYI.
02
Attach context automatically Link a PR or issue; Threadline pulls in the diff and metadata.
03
Reply async, in writing No notifications interrupt. Replies batch into a daily digest.
04
Resolve and archive The decision is indexed by topic and linked to the shipped code.

threadline · workflow.example.ts

01import { threadline } from "@threadline/sdk" 02 03// Open a design-review thread with context 04const thread = await threadline.open({ 05 title: "Retry backoff strategy for payments", 06 intent: "decision", 07 participants: ["@lena", "@marcus"], 08 context: { 09 pr: "#841", 10 repo: "payments-service" 11 } 12}) 13 14// Batch notifications — no interruptions 15threadline.notify({ batch: "daily" }) 16 17// Resolve and archive the decision 18await thread.resolve({ 19 outcome: "Exponential jitter, cap 5s", 20 archiveTo: "payments/decisions" 21})

Pricing

Start free. Scale when your team is ready.

Per-seat pricing with no usage gates. Cancel anytime.

Starter

$0 /seat /mo

For small teams trying async.

Up to 10 seats
Unlimited threads
30-day archive search
GitHub & Linear integrations
Community support

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Team

$8 /seat /mo

For growing engineering teams.

Unlimited seats
Unlimited threads
Full archive search + indexing
All integrations
Decision templates
Priority support

Start 14-day trial

Enterprise

Custom

For organizations at scale.

Everything in Team
SSO / SAML
Audit logs & compliance
Self-hosted archive option
Dedicated success manager
SLA guarantees

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