Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add autonnel/autonnel-skills --skill post-purchase-upsell-flowgit clone --depth 1 https://github.com/autonnel/autonnel-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/autonnel/autonnel-skills/post-purchase-upsell-flow)<a href="https://agentmods.dev/skills/autonnel/autonnel-skills/post-purchase-upsell-flow"><img src="https://agentmods.dev/badge/skills/autonnel/autonnel-skills/post-purchase-upsell-flow/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/autonnel/autonnel-skills/post-purchase-upsell-flow"><img src="https://agentmods.dev/badge/skills/autonnel/autonnel-skills/post-purchase-upsell-flow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00085 | $0.01857 |
| Opus 5 | $0.00043 | $0.00928 |
| Sonnet 5 | $0.00017 | $0.00371 |
| Haiku 4.5 | $0.00009 | $0.00186 |
Grade A, and why
post-purchase-upsell-flow scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 13d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Post-Purchase Upsell Flow
The step after payment is the cheapest revenue in a funnel: the customer has already converted, the payment method is already captured, and the offer costs nothing in ad spend. This skill covers designing that step and the technical requirements that make it actually work.
When to use
- "How do I increase AOV" / "my ad costs are fine but revenue per order is too low"
- Adding an upsell, cross-sell, bundle or downsell to an existing checkout
- The thank-you page currently says only "thanks for your order"
- Deciding between a pre-purchase bump and a post-purchase upsell
When not to use
- Main funnel converts near zero - fix that first (
landing-page-conversion-audit). An upsell on no traffic is arithmetic on zero. - High-ticket, sales-call-closed offers. The upsell there is a human conversation, not a page.
Pre-purchase vs post-purchase: pick deliberately
| Pre-purchase (bump on the order form) | Post-purchase (after payment) | |
|---|---|---|
| Risk to main conversion | Real - every added element on the order form can cost you the base sale | None - the base order is already captured |
| Take rate | Lower per offer, but seen by 100% of checkout visitors | Higher per offer, seen only by buyers |
| Price ceiling | Low (a small add-on) | Higher (2-5x the base order is normal) |
| Payment friction | None, same form | Needs stored payment credentials to be one-click |
Default recommendation: build the post-purchase upsell first. It cannot cannibalize the base conversion rate, so it is the only AOV lever that is risk-free to test. Add a pre-purchase bump later, and only behind an A/B test that watches base conversion rate as a guardrail metric.
Designing the offer
Rules that decide take rate
- Complementary, not bigger. "You bought the mat, here is the strap" beats "buy a second mat at 20% off". The customer's need is now solved; sell the thing that completes it.
- One decision per screen. A grid of four upsells converts worse than one offer with a clear yes/no.
- Yes must be one tap. Any re-entry of card details collapses take rate. This is a technical requirement, not a design preference - see below.
- No must be honest and easy. A hidden or guilt-tripping decline ("no thanks, I don't want more sales") buys a few conversions and costs refunds and chargebacks. Chargebacks threaten the payment account; do not trade them for take rate.
- Price relative to what they just paid. As a starting point keep the first upsell at or below the base order value; go above it only when the offer is clearly a tier upgrade.
- Time-bound only if true. "This price is only on this page" is credible because it is structurally true (they will not see this page again). Fake countdown timers are not, and buyers who feel tricked refund.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 13d ago First seen · 117 lines · 85 tokens per session scan A 2249aa11ac76
post-purchase-upsell-flow is a skill published in the GitHub repository autonnel/autonnel-skills (2 stars, last pushed 24d ago), licensed Apache-2.0. It adds 85 tokens to every session and 1,857 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
sumup
Implement SumUp checkout flows end-to-end. Use when writing or reviewing SumUp Checkouts API calls, Card Widget mounts, Hosted Checkout setup, recurring tokenization, Terminal SDK / Cloud API reader checkouts, or 3DS / webhook handling.
sumup-best-practices
Pick the right SumUp integration path and apply security best practices. Use when deciding between Hosted Checkout, Card Widget, Checkouts API, mobile SDKs, terminal SDKs, or Cloud API; choosing API key vs OAuth vs restricted keys; or reviewing SumUp integration security.
bestprice-shopping
Guide for using BestPrice Shopping MCP tools effectively.
manage-ecommerce
Connect WooCommerce, Shopify, OpenCart, Magento, PrestaShop, Megasoft, or a custom shop API and configure the shop / eshopintegration agent tool. Use when the user wants product lookup, stock, or order data on a voice agent.
manage-integrations
Connect Voice Logica integrations, enable the matching agent tool, and test with a Call ID. Use when the user wants HubSpot, Shopify, Soft1, Google, SMS, helpdesk, OAuth reconnect, private ERP tunnels, or a private PBX edge device.
customer-billing-ops
Operate customer billing workflows such as subscriptions, refunds, churn triage, billing-portal recovery, and plan analysis using connected billing tools like Stripe. Use when the user needs to help a customer, inspect subscription state, or manage revenue-impacting billing operations.