Phase 0 implementation per PHASE0.md §6.
M.chat(model_cfg, messages) -> content_string | (nil, errmsg)
Builds the OpenAI-compat JSON body:
{ model, messages, stream: false, temperature: model_cfg.temperature ?? 0.2 }
Sends Content-Type and (optionally) Authorization Bearer pulled from
model_cfg.key_env's process environment. Default timeout 60s; overridable
per-model via model_cfg.timeout_ms.
Error surfaces split:
"transport: ..." curl-side (TCP/TLS/timeout)
"decode: ..." non-JSON response body
"api: ..." OpenAI-style { error: { message } } envelope
"broker.chat: no choices[1].message.content..." shape miss
Tested against four canned mock responses (nc -lN listener feeding
HTTP/1.0 + Connection: close so EOF terminates the body): happy path,
api error envelope, raw-text non-JSON, empty choices[]. The on-wire
request body verified as well: POST path, headers, model/messages/
temperature/stream JSON.
Live test against a real llama.cpp/hossenfelder endpoint deferred per
issue #12 (broker endpoint configuration).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- README, .gitignore, CLAUDE.md (project conventions)
- docs/PHASE0.md — full Phase 0 manifest (locked substrate)
- 10 root .lua modules + 4 ffi/ bindings, all stubs raising NotImplemented
with module-scoped responsibilities matching the manifest
- config.lua wired to current dirac/hossenfelder endpoints (qwen-coder-7b
snappy/32k + cloud via OpenRouter through hossenfelder)
File names match docs/PHASE0.md §4 exactly. Module bodies fill in across
later phases; the tree shape is locked.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>