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docs: m17 hang residual diagnosis (model, not engine abort) - #20

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TimothyVang merged 1 commit into
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agent/m17-engine-hang
Jul 9, 2026
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docs: m17 hang residual diagnosis (model, not engine abort)#20
TimothyVang merged 1 commit into
mainfrom
agent/m17-engine-hang

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@TimothyVang

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Summary

  • Diagnosis-only receipt for m17 agent hang residual after /v1 + PR test(smoke): clarify agent hang timeout after /v1 fix #19 hang messaging.
  • Primary: Spark Ollama gpt-oss:20b chat completions hang (0 bytes / 30s curl); doctor /v1 and /api/tags still OK. llama3.1:8b completes.
  • Secondary (handoff): binary version 0.0.0-agent/m4-… contains / → background @opencode-ai/plugin@${version}git ls-remote GitHub hang. Fix in verdict-opencode + rebuild; avoid dual-edit with opencode lane.
  • No functional caseforge/engine abort fix (model-side). Not agent seal.

Test plan

  • npm run build
  • node scripts/selftest.mjs (120 passed)

Record evidence that seal hang after /v1 is Spark Ollama gpt-oss:20b
non-response; secondary slash-in-version plugin install hang is harness
handoff only. No agent seal claim.

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Comment on lines +129 to +131
return chat completions in time. Operator mitigations: smaller model
(`VERDICT_LLM_MODEL=llama3.1:8b`), free Ollama capacity, or accept fallback PASS
(not agent seal).

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P2 Badge Remove fallback PASS as a hang mitigation

For the model non-response scenario described here (0 bytes from chat completions and the agent process staying hung), operators cannot “accept fallback PASS”: caseforge investigate only reaches runLocalEvtxAutoFallback after the verdict run child exits and verification continues (packages/caseforge-cli/src/commands/investigate.ts:474-482), while the smoke script treats timeout exits 124/137 as immediate FAIL before the fallback PASS path (scripts/spark-local-seal-smoke.sh:238-250). This line will mislead anyone trying to mitigate the m17 hang with the documented smoke flow, because the fallback only helps fail-fast/verify-fail cases, not a stuck LLM stream.

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@TimothyVang
TimothyVang merged commit f2fbe9d into main Jul 9, 2026
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