Missional by Design · The person
Design for the most vulnerable first
Design first for the person most likely to be hurt: in crisis, grieving, abused, scrupulous, new to faith, hurt by a church, or, where an app serves them, a child. Help comes before features, verses or answers.

From the calling
Scripture and tradition
“If anyone causes one of these little ones who believe in Me to stumble, it would be better for him to have a large millstone hung around his neck” (Matthew 18:6). “Open your mouth for those with no voice, for the cause of all the dispossessed” (Proverbs 31:8).
FaithTech reminds builders that the shepherd leaves the ninety-nine for the one, and that faithfulness is not measured by scale. faith.tools asks whether an app is safe-guarded from content that could harm. Where an app serves children, the UK Children’s code makes a child’s best interests the primary consideration in design.
Sources: UK Children’s code · The FaithTech Playbook · faith.tools selection criteria
What it rules in, and out
In
- A way to a person on the first screen, never behind an account, a limit or a paywall
- Testing with the most vulnerable people you serve, not only the most engaged
- Accessibility as love: low vision, dyslexia, other languages
- Where an app serves children, their best interests ahead of growth
Out
- A verse in place of a helpline
- Automatic messages to a parent or a group about someone’s disclosure
- Designing for the confident majority and patching the edges
What the maker gives up. Speed, and the simplicity of designing for the confident.
Qualification. Protection must not become control. A child, a survivor or a doubter keeps a voice in what happens next, and specialist safeguarding review decides the hard cases.
Test a design
Who is the most vulnerable person likely to use this today, and what will they see?
- Where could this cause someone vulnerable to stumble?
- Would someone who was hurt in a church feel safe on this screen?
Worked out in the deep dives
Every pattern tagged with this principle
- Choose the kind of help
- Sensitive memory by permission
- Private before shared
- Listening is not microphone consent
- Safety follows the conversation context
- Support without spiritual pressure
- Suicide concerns receive a direct, humane response
- Take a disclosure seriously without requiring a label
- Spiritual authority does not excuse coercion
- Support access accounts for monitored devices
- A support route has a real owner
- Spiritual practice does not replace health care
- Support without automatic agreement
- Doubt has room to remain unresolved
- Repeated reassurance needs a different response
- AI persona
- Reading together
- Check-ins and assessments
- AI memory
- Sharing with a group
- First use
- Children and families
- Citations in AI answers