The core of the read-only recommendation: what this Mac is, what the catalogue
knows, and which model fits. Nothing is downloaded, installed or written.
- hardware.ts: one bounded async spawn of /usr/sbin/sysctl with seven keys,
without -n, parsed as "key: value" lines by the pure parseSysctl(). Free disk
of the data dir through statfs behind the bounded path probe. Fallbacks from
node:os, a 60 s cache, never throws, never system_profiler. A wired limit of
0 means "not set".
- local-model-catalog.ts: seven models, three harness rows (pi gated) and the
chips table as a compiled constant, validated by a Zod schema on first use.
No override file. Model ids are name:tag in lowercase without a slash; every
model carries paramsB and an (empty) tested list. Chip names match on the
end of the chip string, so 'M4' is not the chip of 'Apple M4 Pro'.
- recommend.ts: device budget (the wired limit when above 0, else 2/3 of
memory below 36 GB and 3/4 from 36 GB, less the reserve), need = weights +
KV cache + 1 GiB + prompt cache, fit good up to 0.85 and tight up to 0.98,
speed ok, unknown or slow (a chip in no chips row is unknown), and the
ranking. Verdicts ok, limited (best model under 12 billion parameters) and
none with its reason. "Recommended" only for a pick with a tested entry for
this Mac, which no row has today.
- types/local-model.ts: comments brought in line with the code (chip matching,
budgetShare rounding, a budget of 0 on an Intel Mac).
- cli-registry-no-id-branching.test.ts: the guard also catches a comparison of
a `cli` field with a CLI id (plus one stray blank line Prettier refused).
Tests: test/local-model-format.test.ts, test/local-model-hardware.test.ts
(the captured output of two real Macs), test/local-model-catalog.test.ts,
test/local-model-recommend.test.ts.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
The contract three builders code against in parallel. Nothing is recommended
yet: the route answers 501 and the catalogue is empty.
- src/types/local-model.ts: HardwareFacts, the catalogue rows, HarnessFact,
Candidate, Recommendation, LocalModelStatus, and LOCAL_MODEL_LABELS, the one
list of sentences the server may put into the payload (the zh-CN dictionary
is keyed by them).
- src/local-model/format.ts: formatGb, the one place a byte count becomes a
size a person reads (decimal GB), and memClassGb.
- src/config/local-model-catalog.ts: the Zod schema (model ids are name:tag,
lowercase, no slash) and an empty stock catalogue. No override file.
- Skeletons with their final signatures: hardware.ts, recommend.ts,
harness-facts.ts, routes/local-model-routes.ts (injectable dependencies),
public/local-model-ui.js with its script tag.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Codeman maintainer