See it fix a bug under you

Four fictional companies, each with its own stack, its own Git host and its own workspace — because Sarcio ships onto sites it doesn't control. File the bug with the reporter widget on the page, approve the AI-drafted fix, and watch the running app heal: no reload, no redeploy, state intact.

Module patch · state preserved

Alpine & Oak Outfitters

The storefront that undercharges

A pricing module applies every coupon twice. The fix is replacement code, hot-swapped into the running page — while the cart, quantities and coupon survive untouched. That's a module patch, and state survival is the whole trick.

JavaScript module

Express

GitHub PR

Jira

Server-side fix · self-hosted sidecar

Meridian API

The status page that can't load its own metrics

The metrics endpoint demands a range parameter the dashboard never sends, so every widget dies with a 400. A signed server patch defaults it at the boundary and the page lights up green — enforced by a self-hosted sidecar that fails closed, with the permanent fix opened as a Bitbucket pull request.

Node.js

Sidecar

Bitbucket PR

Jira

Server patch · mid-flow rescue

Loopdesk

The signup wizard that dead-ends at step 3

Finance required a tax id the wizard never collects, so every signup dead-ends at step 3. The patch lands in a Java backend while a user sits on that step — and the very same click succeeds, form state and all. The permanent fix is a GitLab merge request.

Java

Sidecar

GitLab MR

Jira

DOM + server patch · two approvers

Fernwood Journal

The journal whose subscribe button can't be clicked

A real WordPress, and the one demo carrying both tiers. The subscribe button ships permanently disabled — removing that is a DOM patch, and when the reviewer rates it elevated it needs a second, different approver before it goes live. Behind it, the newsletter REST route is fixed through the Sarcio plugin.

WordPress plugin

PHP

Sidecar

GitHub PR

Jira

Every fix is signed, previewable, and reversible.

What you approve in a demo is the same pipeline a customer runs: Ed25519-signed patches, preview-before-live, one-click retire, and a real pull request with the permanent change. See the full lifecycle.

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