🧬 Pinnal

See the blast radius of a code change
before you merge

Modern systems don’t break only when contracts break.
They break when implicit dependencies and hidden assumptions are missed.Pinnal surfaces those risks early.

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GitHub App • No dashboard • Static analysis only

Example impact report

Why changes still break systems

  • Service-to-service calls hidden in logic

  • Shared libraries with version drift

  • Implicit assumptions in legacy code

  • Knowledge trapped in senior engineers’ heads

What Pinnal is (and isn’t)

  • Pinnal does not predict runtime failures.

  • It does not replace contracts, tests, or versioning.

  • It provides visibility — not guarantees.

  • The goal is to help engineers ask better questions before a change is merged.

Who this is for

  • Backend engineers working across multiple repositories

  • Tech leads reviewing cross-service changes

  • Architects managing shared libraries and platforms

  • Teams where tribal knowledge is still a risk

Pinnal © 2025 · Impact analysis for real-world systems · [email protected]