# Delete code the coverage report and call graph agree is unreachable

Code neither the coverage report nor the call graph can reach, removed on both pieces of evidence.

Category: Refactors and cleanup
Source: https://letsship.ai/use-cases/delete-unreachable-code
Published: 2026-08-25

## Goal

Delete code that both the coverage report and the call graph show is unreachable.

## Acceptance criteria

- Both coverage and call-graph evidence are attached
- The suite passes after deletion
- Build output size is recorded before and after
- Anything reachable only through reflection or configuration is excluded

## What lands as proof

Two independent sources agreeing the code is unreachable, because either one alone is misleading.

## 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: Delete the unreachable code in {module}

Description: Delete code that both the coverage report and the call graph show is unreachable.

Acceptance criteria:
- Both coverage and call-graph evidence are attached
- The suite passes after deletion
- Build output size is recorded before and after
- Anything reachable only through reflection or configuration is excluded

Before you create the issue, run coverage and a call-graph check over this repository and replace {module} with the area they agree on.
```

## Questions

### What does the agent actually change?

The ticket is scoped to one outcome: delete code that both the coverage report and the call graph show is unreachable. 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 suite green, build output measurably smaller, 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.