Weekly cost digest: the changes that matter, ranked by impact
Every significant cost shift ranked by impact, with an AI summary, delivered to Slack, Teams or email.
Runs in
Slack · Teams · Email
First optimization recommendation
The next day
ROI
Pays for itself with the first recommendation you act on
# finops
Costory
APP
Weekly digest: €84,200 in total (+3.4%). Up: Data Platform EMR +€2,100 (spark-jobs v2.3). Down: CDN −€640 (cache rule change). New: Bedrock usage in ML, €410.
Leaders decide which changes deserve follow-up.
Playbook
What the agent does
From what Costory notices to what you decide. Costory suggests the next step in conversation, and you decide whether to go ahead.
Costory notices
Every Monday morning.
Costory investigates
01
Rank changes
Digest ranks every significant cost shift by impact.
02
Summarize
AI insights explain the main drivers in plain language.
03
Read it three ways
Tree, table and summary views.
04
Deliver
Scheduled to the channel or inbox you choose.
Where you see it
Slack · #finops
You decide
Leaders decide which changes deserve follow-up.
Why it matters
Weekly cost reviews start with someone building a slide. Most of the time goes into finding what changed, not discussing it.
Who it’s for
FinOps leads, engineering managers, CTOs
Where it runs
Slack · Teams · Email
What you get
What lands in front of your team
Prioritized changes
Biggest impacts first.
A plain-language summary
Ready for the weekly meeting.
No slide building
Delivered automatically.
Sources and assistants
What it connects
Data sources
Example prompts
Or drive it yourself
Set up
Send a weekly digest of the biggest cost changes by team to #finops every Monday at 9:00.
FAQ
Questions about this playbook
How fresh is the data?
Costory refreshes billing data every morning. Providers deliver billing exports with some delay, so a change usually shows up within a day or two.
How long does this playbook take to set up?
Connecting your billing data and the Costory MCP takes under 30 minutes with Terraform or CloudFormation. The playbook itself takes minutes: pick the scope, the trigger and the Slack channel. The first billing data lands the next day, and the agent starts from there.
Can we adjust what the agent does?
Yes. You choose the trigger, the scope (team, service, environment), the channel and the format, and you can pause or change it at any time.
Does Costory change anything in our cloud accounts?
No. Costory reads billing exports and the metrics you connect, and has no write access to your cloud. Actions it takes create Costory objects only: alerts, reports, dashboards and events. Your team stays in control of every change.
Step-by-step guide in the Costory docs
Related playbooks
Run these alongside it
Costory notices
The 11th of every month.
Automate the monthly cloud cost review
A monthly report with an executive summary, root causes and trends, generated from a Cost digest and delivered automatically.
See the playbook
Costory notices
Every Monday at 9:00, for each team.
Weekly showback per team, posted in each team's Slack channel
Every engineering team gets its own weekly cost report in its own Slack channel, scoped to the services it owns.
See the playbook
Costory notices
Spend on a team, service or account deviates from its baseline.
Investigate a cost spike and find the deploy behind it
When spend moves, the agent finds the deploy, team and service behind it, checks incidents and provider events from the same window, and posts the likely cause.
See the playbook
Put this playbook on call
Included in every plan, from €250/month. 30-day free trial: connect in under 30 minutes, get your first optimization recommendation the next day.
First optimization recommendation
The next day
ROI
Pays for itself with the first recommendation you act on
Setup
About 30 minutes
Data residency
EU
Access
Read-only on your cloud