Live-probed against lmcp v0.5.4 (boltzmann) + hossenfelder broker proxy:
Transport simpler than spec:
- lmcp only implements POST-per-RPC with Connection: close; no held-open
SSE channel. Combined with capabilities.tools.listChanged=false, no
client-side listener is needed in v1. Drops the planned M.get_sse
addition to ffi/curl.lua — Phase 1's M.post covers MCP.
Bearer auth is universal across the fleet — config schema grew
auth_token (literal) and auth_env (env-var indirection) fields per
server, mirroring PHASE0 §10's key_env convention.
Streaming tool_calls delta shape verified — accumulator by `index`,
function.arguments arrives as chunked JSON-string. Matches the
formulate-phase assumption in §5.
Resolutions:
Q17 transport abstraction — POST-only, no SSE channel for lmcp.
Q21 error mapping — result.isError (model-recoverable, feed
back as tool turn) vs JSON-RPC error
(unknown method/tool, transport-level).
Q18 role:"tool" turn — accepted at protocol level (live-probed).
Mistral-nemo template verification
blocked by the hossenfelder model-field
routing bug; full closure carried to
Phase 7 verify.
Open-end recorded in §11: the hossenfelder proxy routes every request
to the loaded fast model regardless of model field, blocking Phase 2
testing against mistral-nemo specifically. Parallel to the SSE
buffering issue at marfrit/aish#15; same root (boltzmann proxy code).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
marfrit
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