Passthrough is verified and pinned by regression tests that assert on what
cortex forwarded upstream, so tireless can rely on it. The design no longer
carries it as an open dependency.
Two residual behaviours replace it, neither a passthrough defect:
Multiple system messages are forwarded unmerged and in order, last one wins.
OpenCode sends its own preamble alongside an agent's configured prompt, so the
stage 5 question becomes "did implement.oc.md arrive last", not "did it arrive".
That failure is silent -- an agent that reads as a generic coding assistant and
ignores Out of scope -- and would present as a prompt-quality problem rather
than a plumbing one, so stage 5 now asserts on the upstream request.
helexa#223: /no_think is ignored on /v1/responses, where a thinking model can
spend its whole output budget on reasoning and return "" with status
incomplete. Added RunOutcome::OutputBudgetExhausted so that is retryable but
blameless -- a mis-sized ceiling must not trip a circuit breaker on a lane with
nothing wrong with it. Config pins the chat/completions surface.
The qwen3_next gap is recorded as a gap, not a hole: the system slot is not
arch-branched, so there is no family-specific path to fail.
Fleet now offers Qwen3-Coder-Next, a better fit for executing a written spec,
but cold and feasible only on beast where the pinned 27B lives. Recorded as an
operator decision per generic.md §14 rather than taken here. Config also notes
why tireless pins a model name and never a helexa/* capability alias.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DHhHtohxcdk1PL3tfnYJdH
21c35ff2c3
