There is a way to tell whether your CI/CD pipeline is well designed: show it to someone who does not know the project and ask them what the system does.
If they can answer with reasonable accuracy, good. If they cannot, you have a design problem — regardless of whether it "works".
The pipeline as a contract
A pipeline makes explicit something that in most projects stays implicit: exactly which steps are required to get code to production reliably.
That knowledge usually lives in the heads of the people who have been on the project the longest. When someone leaves, it leaves with them. When someone new joins, it takes them months to reconstruct it.
A well-written pipeline replaces that tribal knowledge with a versioned, executable, auditable artifact.
What makes a pipeline readable
Descriptive job names. test says nothing. test-unit-coverage-90 says exactly what happens and what threshold is enforced.
Separation of concerns. Lint, tests, build, deploy — these are distinct stages with distinct responsibilities. Cramming them into a single job that "does everything" is the equivalent of a 400-line function.
Explicit failures. When something breaks, the pipeline should communicate exactly what failed and why. A generic exit code is not enough. The logs have to tell the story.
Idempotency. Running the pipeline twice should produce the same result. If it does not, you have implicit state that nobody documented.
Infrastructure as documentation
The same applies to infrastructure. A well-written Terraform file documents exactly which resources exist, how they relate to each other, and how they are configured.
The alternative — click ops, manual configuration, "I know how it's wired" — is documentation debt. It is knowing that something works without knowing why, which is almost as dangerous as it not working at all.
The cost of opacity
Opaque systems are more fragile than they look, because their fragility is invisible until something breaks. And when they break, diagnosis is expensive because nobody holds the full map.
Transparent systems fail more predictably, get repaired faster, and can be maintained by more people.
Investing in a readable pipeline is not documentation for documentation's sake. It is a direct investment in operational resilience.