Engineering decisions are the most expensive things teams forget. A decision made in a Slack thread six months ago becomes invisible the moment the channel scrolls past, and the cost of re-deciding it — the meetings, the re-investigation, the repeated mistakes — compounds. The tools below are the ones that treat decisions as first-class artifacts rather than incidental output of some other process. The strongest options are deliberately structured; the weakest ones are flexible enough to let decisions get lost again.
ADR markdown files in the repo
Best for: the most respected pattern. Pricing: free.
Architecture Decision Records as numbered markdown files in a docs/adr directory is the strongest decision-tracking pattern in serious engineering organizations. Versioned, attributable, reviewed in pull requests, and lives next to the code it governs. The pattern has been around long enough to be uncontroversial.
Where it falls short: Requires discipline. ADRs only work if the team actually writes them and updates them when superseded.
StandIn
Best for: structured decision log with governance. Pricing: subscription tier per org.
StandIn treats decisions as first-class artifacts. Each decision has an owner, context, supporting links, and authority. The log is queryable by Representatives — engineers can ask about a decision and get a sourced answer with a timestamp. Decisions persist past the person who made them and resist drift.
Where it falls short: Not a general documentation tool. The decision log is structured around governance, not around exhaustive long-form rationale.
Linear Documents
Best for: decisions inside the work tracker. Pricing: $8 to $14 per user per month.
Linear Documents tied to projects or issues keep decisions next to the work they govern. The cross-linking is strong, and engineers actually read Linear, which is more than can be said for most company wikis.
Where it falls short: Limited as a general decision log. The structure is project-shaped, not decision-shaped.
Governance, not a status channel
StandIn is async governance infrastructure. Engineers declare working state before they go offline. Representatives answer from the record, cite the source, and refuse when the answer is not there.
Request access →GitHub Discussions for RFCs
Best for: proposals and decisions in markdown. Pricing: free to $21 per user per month.
GitHub Discussions structured as an RFC process — propose, discuss, decide, close — is a strong pattern for engineering decisions. The markdown is durable, the participants are linked, the decision is searchable in GitHub's UI.
Where it falls short: Single-repo by default. Cross-repo or company-wide decisions do not have an obvious home.
Notion decision database
Best for: the structured database approach. Pricing: $10 to $18 per user per month.
A Notion database with structured fields — date, owner, context, decision, status — gives you a queryable decision log. Some teams genuinely make this work.
Where it falls short: Discoverability decays. The database is one of many in the workspace, and search has to compete with everything else.
Confluence decision pages
Best for: the enterprise wiki approach. Pricing: $5.75 to $11 per user per month.
If you are already on Atlassian, a structured decision page template in Confluence is the path of least resistance. The pages are durable and integrate with Jira links.
Where it falls short: Same shape of problem as Notion. Pages drift, search degrades, decisions get lost in the broader wiki.
How to choose
The single most useful framing is that decision tracking is a discipline first and a tool second. A team that writes ADR markdown files badly has worse decisions than a team that writes them well in any tool, and a team that does not write them at all has the worst decisions of all. The tools above are ranked by how much structure they bring — how hard it is to lose a decision in them. ADRs and structured decision logs are the strongest. Notion and Confluence decision pages are the weakest because the structure dissolves into the broader workspace. Pick whatever your team will actually maintain.
Frequently asked questions
Where should engineering decisions live?
As close to the artifact they govern as possible. Architectural decisions belong next to the code in ADR markdown. Project decisions belong in the project tracker. Team decisions belong in the team's structured decision log. The mistake is consolidating all decisions into one place, where they become a graveyard.
How do I get my team to actually write down decisions?
Make it short, make it structured, and make it required for specific events — when a debate happened, when a tradeoff was chosen, when a constraint was set. Long-form rationale is a luxury that most teams cannot sustain. A three-line decision is better than a missing one.
What is the difference between an ADR and a decision log entry?
An ADR is long-form architectural rationale, typically per decision, per file. A decision log entry is shorter and more numerous — it records that a decision was made, by whom, with what authority, often without the full essay. Both are useful; they answer different questions.
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