Safety stock review with planner approval
Recalculates safety stock and reorder points for a product category in plain code, then has the model explain each change and the working capital it frees or adds. A planner approves or rejects every decision by email before it reaches the purchase order queue.
What it does
- Pulls demand, lead time and cost per SKU from the catalog
- Computes safety stock, reorder point and working capital delta in code, at the current service level
- Has the model explain the result in plain language as strict JSON, marking confidence low if parsing fails
- Stamps each decision with an ID and timestamp and sends it for approval
- Logs the approve or reject outcome; a rejection closes the decision with no change
Your approval boundaries
Approval requiredThese actions always wait for your yes:
- Approving each safety stock change before it enters the purchase order queue
You decide what happens next.
More about this workflow
This setup is for operators and managers who keep the busywork moving. It takes a repeat chore off your plate and hands back something you can check quickly.
First, it pulls demand, lead time and cost per SKU from the catalog. Next, it computes safety stock, reorder point and working capital delta in code, at the current service level. Then it has the model explain the result in plain language as strict JSON, marking confidence low if parsing fails. After that, it stamps each decision with an ID and timestamp and sends it for approval. Finally, it logs the approve or reject outcome; a rejection closes the decision with no change. It works with your spreadsheets, email and automation platform, each on its own login with limited access.
You get the prep work done and waiting for you. The agent stops and asks for your yes before approving each safety stock change before it enters the purchase order queue, and says plainly if a step cannot be undone.
“the language model never computes an inventory number.”
Explore required tools and model recommendations
Tools and access
Google Sheets
Handles the spreadsheets part of this job. Grant access to the single sheet it needs.
API required: Yes. Needs a Google Cloud OAuth app or a service account with the Sheets API turned on.
Gmail
Handles the email part of this job. Grant read-only plus compose (drafts) scopes.
API required: Yes. Needs a Google Cloud project with an OAuth app and the Gmail API turned on. The agent signs in through OAuth with only the scopes you pick.
n8n
Handles the automation platform part of this job. Grant create workflows, left inactive until reviewed.
API required: Yes. Needs an n8n API key from settings. New workflows should stay inactive until you review them.
Official links only. Not sponsored, no affiliate links.
Model recommendations
Best pick
GPT-6.1 Sol
Cheap cached input suits jobs that rerun the same instructions each week.
$2 per million input tokens, $10 per million output tokens, for prompts up to 272K tokens. Longer prompts cost $4 in and $15 out.
OpenAI docs as of October 11, 2026
Cheaper backup
Gemini 3.5 Flash-Lite
Low cost for simple data pulls and matching.
$0.30 per million input tokens, $2.50 per million output tokens.
Google docs as of October 11, 2026
Our own picks. Not sponsored, no affiliate links.
Build your prompt
Add your details, then copy the prompt into your tool.
2Your prompt
4 of 4 still emptyYour answers stay in this browser only.
Run your workflow
Connect your tools with only the access this setup needs, then follow these steps.
Steps
Do these in order. Test on old data before it touches live work.
- 1Connect Google Sheets with its own login, not yours. Grant access to the single sheet it needs.
- 2Connect Gmail with its own login, not yours. Grant read-only plus compose (drafts) scopes.
- 3Connect n8n with its own login, not yours. Grant create workflows, left inactive until reviewed.
- 4Paste the prompt where your harness takes instructions. See the note under the Copy button.
- 5Do a dry run on old or test data first. Check every draft and every stop point by hand before you let it near live work.
- 6Read its log after the first real run. Only widen access once a week of runs looks clean.
Safeguards and trust score
The score describes this example setup’s access, approval boundaries, ability to undo changes, and scope.
Can draft things that send or spend, so it sits close to risky actions.
Waits for a yes on: approving each safety stock change before it enters the purchase order queue.
Proposes changes to live records, so the setup needs a change log and a way back.
Runs on its own login across 3 tools. Fewer connections means a smaller blast radius.
How to raise it
- Access: Take away its ability to send, post or spend. Let it only write drafts, and have a person press send or pay from their own account +6
- Human approval: Add a second named stop next to "approving each safety stock change before it enters the purchase order queue", so every step that leaves your hands waits for a yes, and have the confirm say plainly what cannot be undone +3
- Undo and logs: Stop it from editing live records. Have it write the change as a proposal you apply, and keep a log of every change with a way to roll it back +3
Do all of these to reach 87, up from 75.
Want help getting there? Get an AI Trust Audit from Pixeldesigns
Reviewed by Trustcase (example setup). How scoring works
Embed badge
Show this trust score on your site or README. It links back here.
[](https://trustcase.dev/use-cases/safety-stock-review-with-planner-approval)<a href="https://trustcase.dev/use-cases/safety-stock-review-with-planner-approval"><img src="https://trustcase.dev/badge/safety-stock-review-with-planner-approval.svg" alt="Trustcase trust score for Safety stock review with planner approval" height="20"></a>More operations workflows
- Daily request intake and client progress page
Each morning it reads the latest meeting transcript, recent client emails and a drop folder, files every document and turns every request into a task on one list. Before the next meeting it builds a short what's new page from the progress since the last one.
- Invoice inbox
Reads bills that land in email and gets them ready to pay.
- Weekly ops report
Writes the Monday numbers summary so you do not build it by hand.
- Vendor quote compare
Lines up quotes from several vendors side by side.
Other workflows that use the same tools
- Email to quote drafter
Sales. Turns a messy price request email into a priced quote and a draft reply. Risky orders get flagged for a person first.
- Seasonal client check in drafts
Sales. Tells you which clients and prospects are due for a check in, then drafts a personal email for each from your notes. You edit and send them yourself.
- Weekly outreach bounce and reply audit
Sales. Every Monday it checks the week's sent mail, replies and bounces against every account in your pipeline. It writes a short briefing with an action queue and drafts follow ups for you to send.