Borehole · Project · free tier
ycm-core/youcompleteme
Free reading: not for reliance
d4c9143 · 3,263 commits · 142 files
Read 2026-11-07

ycm-core/youcompleteme: technical due diligence, read from its repository

What Borehole read in ycm-core/youcompleteme's code and history at d4c9143: 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.

DimensionRating
Architecture & Codebase — including AI provenancestrong
Engineering Process & SDLC Maturityadequate
Product & Engineering Maturitynot assessable
Security & Reliability Postureadequate
Observability & Operationsnot assessable
Fit with the Acquirernot assessable

What the repository says

  • .gitmodules:1: 1 submodule(s) this survey does not read: third_party/ycmd

Architecture & Codebase — including AI provenance

strong
01.6

autoload/youcompleteme.vim is 1,775 lines, 15× this codebase's median file

adequate

The median source file here is 114 lines. 2 files exceed 1,140 lines, the largest being 1,775. 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.

Evidence
autoload/youcompleteme.vim:1 — 1,775 lines (15× median)
python/ycm/vimsupport.py:1 — 1,504 lines (13× median)

Engineering Process & SDLC Maturity

adequate
02.4

Nothing in the history is tagged as a release

adequate

Across 14.2 years of history there is not one tag. There may still be a deployment process, but this repository holds no record of what shipped when — which is the record a buyer needs to reconstruct an incident or a regression after the fact.

Evidence
0 tags across 3,263 commits and 5192 days

Product & Engineering Maturity

not assessable

Not rated: only 6 of 19 checks could reach a conclusion here; the rest do not apply to this repository or could not read it.

Security & Reliability Posture

adequate
05.2

None of the standard security guard rails are configured

adequate

There 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.

Evidence
checked 5 kinds of guard rail across 142 tracked files; 0 present
05.27

The build runs third-party code it does not pin

adequate

3 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.

Evidence
.github/workflows/ci.yml:44 — action pinned by tag
.github/workflows/lock_old_issues.yaml:12 — action pinned by tag

Observability & Operations

not assessable

Not rated: only 5 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 assessable

Not rated: structurally not assessable from a repository.

Read more, or read your own

The full report on ycm-core/youcompleteme: every dimension, the questions for the room, and the audit log.

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