Read 2026-10-04
teslamate-org/teslamate: technical due diligence, read from its repository
What Borehole read in teslamate-org/teslamate's code and history at 1ddb3e4: 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 | strong |
| Security & Reliability Posture | adequate |
| Observability & Operations | adequate |
| Fit with the Acquirer | not assessable |
What the repository says
LICENSE: Relicensed: MIT → AGPL-3.0 (2026-02-13)README.md:4: names OpenSSF
Architecture & Codebase — including AI provenance
strongelixir/lib/teslamate/vehicles/vehicle.ex is 2,251 lines, 50× this codebase's median file
adequateThe median source file here is 45 lines. 2 files exceed 1,000 lines, the largest being 2,251. 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.
elixir/lib/teslamate/vehicles/vehicle.ex:1 — 2,251 lines (50× median) |
elixir/lib/teslamate/mqtt/pubsub/home_assistant.ex:1 — 1,111 lines (24× median) |
Engineering Process & SDLC Maturity
strongNo finding.
Product & Engineering Maturity
strongNode.js 20 is past end of life
adequateThe code is pinned to Node.js 20 (end of life 2026-04-30). None of these receives security fixes any more; the first stopped on 2026-04-30. Moving off an unsupported runtime is rarely a one-line change, so a buyer should ask whether the upgrade is planned and what it touches.
.node-version — Node.js 20, end of life 2026-04-30 |
Security & Reliability Posture
adequate9 locked dependencies have published vulnerabilities, 1 high or critical in what ships
adequate9 of 1,345 locked dependencies match 15 published advisories in OSV, 5 of them rated high or critical. A lockfile says which version is installed, not whether the flawed code is reachable from this product, so each needs a look. Most are fixed by an upgrade, and the advisory names the version. This lockfile pins development tools alongside what ships and does not say which is which, so some of these may never reach a user.
website/package-lock.json — braces 3.0.3: GHSA-vfj7-8cjw-p6xm (high) |
website/package-lock.json — brace-expansion 1.1.18: GHSA-6j4f-fj2g-mc7p (high), fixed in 1.1.19; reached only by the build |
website/package-lock.json — http-cache-semantics 4.2.0: GHSA-ch52-4w7c-c8xp (high); reached only by the build |
Relicensed: MIT → AGPL-3.0 (2026-02-13)
adequateThe root licence changed 1 time(s). The latest terms restrict what users, hosts or a buyer may do in ways the earlier ones did not. Code taken under the old terms stays under them, so both matter in diligence.
Observability & Operations
adequateNo telemetry or error reporting is wired in anywhere
adequateNone of 787 readable files references an instrumentation, metrics or error-reporting library. If this system is in production, nobody learns that it broke from the system itself — they learn it from a customer. That is a reliability finding before it is an observability one.
| searched 787 tracked text files for 16 known instrumentation libraries; manifests for metrics, tracing and error-reporting families; locked dependencies for the packages that emit; 0 matched |
One request cannot be followed through the logs
adequateNothing in the service carries a request or correlation id, and there is no tracing. When a customer reports a failure, the log lines that belong to their request cannot be picked out from everyone else's.
| no request id, correlation id or tracing found |
No error reporter is wired in
adequateNothing in the service initialises an error reporter (Sentry, Rollbar, Bugsnag, Honeybadger or an APM agent). An exception in production reaches a person only if someone is reading the logs, which usually means a customer reports it first.
| no error reporter initialised |
Fit with the Acquirer
not assessableNot rated: structurally not assessable from a repository.
Read more, or read your own
The full report on teslamate-org/teslamate: every dimension, the questions for the room, and the audit log.
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