Host engine needs: verification run

Branch add-host-engine-needs, base f357c91 (tag golang/v0.21.0), uncommitted. macOS, run 2026-10-25 by the toolnexus maintainer agent. Covers OpenSpec changes add-host-engine-needs, add-mcp-progress-timeout and add-host-turn-durability. One log per port; exit-codes.txt has the exit codes.

Port	Command	Result
golang	go vet ./... && go test -race -count=1 -v ./...	ok (root 29.8 s, agents 2.8 s)
js	npm test	501 pass, 0 fail
python	.venv/bin/python -m pytest -q	614 passed
java	./gradlew test --no-daemon	exit 0
csharp	dotnet test	573/573
elixir	mix coveralls	756 passed, 95.4 % (gate 95)
clojure	./all-modes-check.sh	612 tests / 3693 assertions, all 5 modes agree

Cancel to process gone (S6 input)

The job ignores SIGTERM and has a TERM-ignoring background child. Timed from cancel until every process is gone, 10 runs.

• Product config, killGraceMs = 100. golang 101.0 / 101.4 / 101.8 ms (min/median/max, from golang.log, this run). The other ports come from their agents' runs: js 100.6–104.0, python 102–107, java 103–111, elixir 137–141, csharp 165–188, clojure 175–228 (median 204; it is the only port whose median misses a 200 ms bar).
• Stock default, 2000 ms. elixir measured 2036 ms. go-agent-cli e2e measured about 2.0 s on golang. No other port's stock value was measured.

Only golang's numbers were measured in this run. The others are as reported by each port's implementing agent.

Not verified here

Windows and Linux, a real provider (all LLM traffic is a mock), and power-loss durability.