Read 2026-10-04
pointfreeco/swift-composable-architecture: technical due diligence, read from its repository
What Borehole read in pointfreeco/swift-composable-architecture's code and history at 377da40: its licence, security advisories, releases, review practice, tests, dependencies and operations. Every finding cites the file and line it rests on. The full report also covers the team and asks the questions the code cannot answer.
| Dimension | Rating |
|---|---|
| Architecture & Codebase — including AI provenance | strong |
| Engineering Process & SDLC Maturity | strong |
| Product & Engineering Maturity | adequate |
| Security & Reliability Posture | adequate |
| Observability & Operations | not assessable |
| Fit with the Acquirer | not assessable |
Architecture & Codebase — including AI provenance
strongSources/ComposableArchitecture/Internal/Deprecations.swift is 3,942 lines, 75× this codebase's median file
adequateThe median source file here is 52 lines. 3 files exceed 1,000 lines, the largest being 3,942. Size is not a defect on its own — some problems genuinely live in one place — but these are where merge conflicts, review fatigue and single-owner knowledge concentrate, and they are the first thing that slows an inheriting engineer down.
Sources/ComposableArchitecture/Internal/Deprecations.swift:1 — 3,942 lines (75× median) |
Sources/ComposableArchitecture/TestStore.swift:1 — 2,539 lines (48× median) |
Sources/ComposableArchitecture/Observation/Store+Observation.swift:1 — 1,009 lines (19× median) |
Engineering Process & SDLC Maturity
strongAlmost no process scaffolding exists in the repository
adequateOf five ordinary markers — CI workflows, CODEOWNERS, a pull-request template, pre-commit hooks, contribution guidance — 1 is present: CI workflows. Branch protection itself is a GitHub setting rather than a file, so this is a reading of proxies and not of the rules themselves. What it does establish is that the process is not written down anywhere a new engineer would find it.
| 1 of 5 markers present across 1,111 tracked files |
Product & Engineering Maturity
adequate13% of bug fixes add or change a test
adequateOf 60 fixes in the last 24 months, 8 touched a test. A fix without the test that would have caught the bug can quietly come back, and the suite never learns from what went wrong.
| 8 of 60 |
Security & Reliability Posture
adequateNone of the standard security guard rails are configured
adequateThere is no disclosure policy, no automated dependency updates, no named code owners and no pre-commit configuration. None of these is load-bearing on its own. Their collective absence says that security posture here is whatever the current team happens to remember to do, which is not a posture that survives the team changing.
| checked 5 kinds of guard rail across 1,111 tracked files; 0 present |
The build runs third-party code it does not pin
adequate3 third-party CI actions are referenced by a tag or branch rather than a commit, so they run whatever that tag points to on the day. Tags have been moved to malicious commits in real supply-chain attacks, and a piped script is whatever the server returns that minute. Pinning to a commit is the fix, and it is small.
.github/workflows/ci.yml:45 — action pinned by tag |
.github/workflows/format.yml:24 — action pinned by tag |
Observability & Operations
not assessableNot rated: only 4 of 16 checks could reach a conclusion here; the rest do not apply to this repository or could not read it.
Fit with the Acquirer
not assessableNot rated: structurally not assessable from a repository.
Read more, or read your own
The full report on pointfreeco/swift-composable-architecture: every dimension, the questions for the room, and the audit log.
Survey a repository: free on public repositories. Private code is read on your own machine by a collector whose source you can read first.