Predict what a change breaks — before it breaks
The refactor you’re avoiding has a blast radius you can’t see. ContextDx maps every dependency across services, integrations, and data so you can trace it before you commit.
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// the problem
The change you’re afraid to make
You know the one. Touch it and something three systems away falls over — and you won’t know which until prod tells you. So the risky code calcifies, because nobody can see what depends on it.
“We touched X and Y went down. Nobody had connected them on a diagram.”
// the difference
What impact analysis misses when it lives in your head
In your head
You remember the dependencies you’ve already been bitten by. The ones you’ve never hit are invisible — until the change ships.
A validated map
ContextDx holds the whole dependency graph — services, integrations, data — so blast radius is something you read, not something you happen to recall.
// how it works
Map the blast radius across services
Derive the dependency graph
Board Builder maps relationships semantically — not just static imports — across services, queues, and external integrations.
Query what a change touches
Ask “what depends on the auth service?” in plain language and get a C4 board scoped to exactly that.
See cross-system reach
The board spans service boundaries and integrations, so the dependency nobody documented surfaces before you commit — not after.
// ask it
Trace a change across systems
Concrete questions, each answered with a diagram:
- If I change the order schema, which services read it?
- What calls this endpoint — directly, or through a queue?
- Which integrations break if I retire this service?
- What’s downstream of the payment webhook?
// keep going
Related ways architects use ContextDx
// before you commit
Make the change you’ve been afraid to make.
See the blast radius before you touch it. Map your architecture and query it free during preview.
No credit card · Founder plan included