# Harden Error Handling

Improve error classification, propagation, user feedback and safe logging across a selected flow.

## Purpose

This is a publishable P0 built-in DevRunbook package. It is designed for the `execute` work mode with default autonomy `verify` and risk tier `moderate`.

## Required context

- Target flow: Describe the user or system flow whose error behavior must be hardened.
- Error policy: Describe expected error taxonomy, user messaging, retry and logging behavior.

## Completion

- Expected failure modes have explicit behavior.
- Sensitive details are not leaked and tests cover errors.
- Validation evidence and unresolved limitations are reported honestly.

## Quality status

Editorially reviewed and covered by static structure and determinism fixtures. It is not represented as execution-validated or battle-tested until the platform stores corresponding evidence.