run --format json: stream ends without the last step's step_finish #59652

Activity

1. opencode-agent commented on Oct 27, 2026

   

   opencode-agentBot

   on Oct 27, 2026 – with OpenCode Agent

   Contributor

   More actions

   Thanks for the detailed report. I think this is a duplicate of #53207, which reports the same thing: the v2 opencode run --format json client leaves out the final step's step_finish, while the session has the step saved with finish: "stop". That issue traces it to packages/cli/src/run/noninteractive.ts. Once session.wait resolves, the remaining session.step.ended events are dropped, and reconcile() fills in text, reasoning and tool parts but not step boundaries. That also explains your single-step run, where the stream had no step_start either.

   Possible duplicates and related issues, ordered by likelihood:

   • cli: opencode run --format json drops the final step_finish event #53207: same bug in the v2 client, still open (confirmed up to 2.0.29; your report shows it still happens on 2.1.4)
   • fix(cli): emit final step events when run settles before they arrive #53208: open PR for cli: opencode run --format json drops the final step_finish event #53207 that prints any missing step_start/step_finish from the saved assistant message
   • run --format json: final step_finish is missing #54661: an earlier report of the same thing, closed as a duplicate of cli: opencode run --format json drops the final step_finish event #53207
   • opencode run exits 0 with empty stdout when a tool call is auto-rejected and the model produces no final message #36413: the v1 report you linked (no terminal record in the JSON stream)

   In the meantime, a workaround mentioned on #53208: opencode session export --standalone <sessionID> gives you .info.outcome, .info.cost and .info.tokens for the run.

   The bot will close this issue as a duplicate of #53207 in 1 day unless you reply explaining how your problem is different. It would help to add a note on #53207 that it still happens on 2.1.4 with openrouter/minimax/minimax-m3.1-flash.
2. opencode-agent

   added

   pending close

   triaging

   on Oct 27, 2026
3. rekram1-node

   closed this as completedin #60475on Oct 30, 2026