What this article solves: Six months from now, nobody will remember why you chose Redis over Memcached—unless the decision left receipts. This guide covers automated decision logs from the places your team already argues productively.
Who this is for: Tech leads who want ADRs without assigning a part-time historian.
The problem with manual decision logs
Manual ADRs die because they compete with shipping.
Teams either:
- Write one heroic ADR and never update it, or
- Skip ADRs entirely and hope Slack search works forever
Code changes daily. Memory does not.
Where decisions actually happen
| Source | What you capture |
|---|---|
| **GitHub** PR + review | Approach, rejected alternatives, merge proof |
| **Slack** thread | Fast tradeoffs, incident-driven reversals |
| **Fathom** (or call notes) | "We agreed to delay the migration" that never became a ticket |
| **Confluence** | Stakeholder-facing decision record for compliance |
| **Linear / Jira** | Business scope and "we shipped X for ticket Y" |
You rarely need all five in one entry. A schema decision might be PR + Supabase migration link. A product pivot might be Fathom summary + Notion RFC + PR.
What a good automated decision entry looks like
- One-sentence decision — "Use idempotency keys on webhook handler"
- Tradeoffs — pulled from review comments, not invented
- Sources — clickable PR, thread, call summary, wiki page
- Status — superseded when a later PR reverses it (link forward)
If an engineer cannot verify in two clicks, it is marketing—not a decision log.
Fathom: decisions that never became tickets
The most expensive knowledge is what was said on a call and nowhere else.
Connecting Fathom lets meeting summaries sit next to the PR that implemented (or blocked) the idea. Future you does not need to ask "what did we agree on in that roadmap review?"
Confluence: when the company still wants a wiki face
Confluence pages are often the audit-friendly version of a decision. Great—keep them. Just do not type them from memory every Friday.
Generate the engineer-facing log from GitHub and Slack; link to Confluence for the polished narrative. One brain, two audiences.
Setup checklist
- GitHub connected; PR template asks for alternatives considered
- Slack threads linked when decisions happen in chat
- Fathom connected if PM/staff decisions happen on calls weekly
- Confluence connected if compliance reads the wiki first
- Linear or Jira tickets referenced in PR titles
- Team norm: supersede old ADRs with links, do not orphan them
The outcome
New hires read why, not just what. Incident responders see which decision created the fragile edge. Auditors follow Confluence links to PR proof.
The why survives because it was never trapped in one person's head.
Capture decisions from your stack
Related ScopeDocs resources
- What is generative documentation?
- ScopeDocs product overview
- Quickstart: connect, stamp, ask
- Documentation integrations: what to connect first
- How to Keep Runbooks and ADRs in Sync with Your Codebase
- How to Link Implementation to Documentation Using Linear Ticket Context
- More on generative documentation