First published on openspec-ui.dev.
An agent ended its run with four decisions it needed from the operator,
and the product offered no way to answer them. A chain would have gone on
to the next stage with them open. The owner decided the same day: questions
are caught, the run stops and waits, nothing goes on without an answer, the
answers are kept in the change's decisions.md and in the audit log, and
the product's own agent asks in its turn from the start.
The marker, the event and the command
Every agent stage's instruction asks for Question for the operator: <…>
lines for decisions the agent needs. The product reads them as markers.
local-llm-acp gets an ask_operator tool that blocks its turn until
answered.
A question event and an answerQuestion command are added to the
protocol. A question waiting kind appears in the run's status. A run
that asked waits instead of completing, in a chain or alone, under every
autonomy level. Once answered, the stage runs again with the answers —
update for propose and review, the same command otherwise.
Where answers live
openspec/changes/<change>/decisions.md holds every question and answer.
The audit log records both. An agent run on a change with an open question
is refused.
Questions are answered from the card, the AI panel, the Human-Only Inbox
and openspec-ui-cli answer. The card shows open questions with answer
fields; the panel does the same. The Inbox surfaces questions alongside
its usual checkpoint answers. From a terminal:
openspec-ui-cli answer <changeId> --question "Which branch strategy?" --answer "gitflow"
What this changes about autonomy
Before this, an autonomy level of full meant the chain ran without
interruption. Now, a question is a hard stop regardless of autonomy level.
The chain waits for a human answer, even at full autonomy. This is
intentional: a question from an agent is a request for judgment, not a
checkpoint the chain can resolve on its own.
The refusal of a run past an open question is explicit. If someone tries
to start a new agent run on a change that still has unanswered questions,
the product says so and names the open questions. This prevents a second
agent from running while the first is still waiting for an answer.
Try it
The code is at
github.com/VeryComplexAndLongName/OpenSpec-UI,
where the repository and packages keep the name OpenSpec-UI.
openspec-ui-cli answer <changeId> --question <questionId> --answer <answer>
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