# Implement Health and Readiness Checks

Add accurate liveness, readiness and dependency health without hiding partial outages.

## 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

- Required dependencies: List dependencies that determine readiness and their failure semantics.
- Degraded components: List optional components that may fail without making the whole service unready.

## Completion

- Orchestrator behavior matches documented semantics.
- Optional integration outages do not misreport total failure.
- 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.