# Move one consumer off a deprecated internal library

One consumer migrated off an internal library everybody agreed to retire.

Category: Architecture and boundaries
Source: https://letsship.ai/use-cases/move-a-consumer-off-a-deprecated-library
Published: 2026-08-25

## Goal

Migrate one consumer off a deprecated internal library.

## Acceptance criteria

- The consumer no longer imports the old library
- Its tests pass unchanged in what they assert
- Behaviour the replacement does not cover is raised rather than worked around
- The remaining consumers are counted in the description

## What lands as proof

A passing suite with the old import gone, plus a count of what is left so the next ticket is obvious.

## Prompt

Copy this to an agent to open the ticket:

```text
Create a Linear issue in my team and assign it to the SHIP agent.

Title: Move {consumer} off {library}

Description: Migrate one consumer off a deprecated internal library.

Acceptance criteria:
- The consumer no longer imports the old library
- Its tests pass unchanged in what they assert
- Behaviour the replacement does not cover is raised rather than worked around
- The remaining consumers are counted in the description

Before you create the issue, find an internal library in this repository marked deprecated and replace {library} and {consumer}.
```

## Questions

### What does the agent actually change?

The ticket is scoped to one outcome: migrate one consumer off a deprecated internal library. Work that serves that outcome is in scope, and anything outside it is left for a separate ticket, so the pull request stays reviewable.

### How do I know the work is done?

The pull request carries the evidence, not only the diff. Here that means consumer migrated, the old import no longer resolves anywhere, so a reviewer can confirm the result without reproducing the work locally.

### How much oversight does this need?

None is required before the run starts. Every claim this ticket makes can be checked by machine, so the agent works straight through and a person reviews the finished pull request like any other.