fix(opencode): wait for session completion - #217
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📝 WalkthroughWalkthroughThe OpenCode runtime now polls active sessions and messages to detect prompt completion. It handles assistant completion markers, errors, timeouts, and unavailable active-session support. A regression test verifies successful readiness-race handling without calling ChangesOpenCode readiness handling
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🟡 Moderate · up to Resumed OpenCode sessions with 100 or more prior messages may fail to return a successful completion because the adapter can miss the current turn in paginated history and eventually time out; merge should wait for pagination handling to be fixed. Sequence Diagram(s)sequenceDiagram
participant Runtime
participant OpenCodeClient
participant SessionMessages
participant ActiveSessions
Runtime->>OpenCodeClient: Request session messages
OpenCodeClient->>SessionMessages: Return prompt and assistant metadata
Runtime->>OpenCodeClient: Request active-session state
OpenCodeClient->>ActiveSessions: Return current session state
Runtime->>Runtime: Detect completion or continue polling
Runtime-->>OpenCodeClient: Return assistant response
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Greptile SummaryThis PR replaces OpenCode's unreliable session wait endpoint with bounded polling of active-session state and message completion.
Confidence Score: 4/5The long-session polling failure should be fixed before merging because valid resumed agent runs can wait five minutes and then fail despite completing successfully. Completion polling depends on an ascending 100-message slice, while the runtime supports resumed sessions whose newly submitted prompt can fall outside that slice and remain permanently unobservable to the poll. Files Needing Attention: src/local-agent-opencode.ts
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| Filename | Overview |
|---|---|
| src/local-agent-opencode.ts | Adds active-session completion polling, but the poll cannot find the current prompt once a resumed session exceeds the ascending 100-message window. |
| src/local-agent-opencode.test.ts | Adds coverage for the wait-endpoint readiness race, but exercises only a short, newly created session. |
Reviews (1): Last reviewed commit: "fix(opencode): wait for session completi..." | Re-trigger Greptile
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| let observedActive = false; | ||
| while (true) { | ||
| const messages = await readOpencodeMessages(client, sessionId); | ||
| const activity = await active({ throwOnError: true }); | ||
| const running = isOpenCodeSessionActive(activity, sessionId); | ||
| if (running) observedActive = true; | ||
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When a resumed session already contains at least 100 messages, readOpencodeMessages repeatedly returns the oldest 100 entries, so the poll never sees the newly submitted prompt or its completion and fails the successful run with a provider timeout after five minutes.
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Fixed in local commit (). The polling and final-response paths now follow , omit on cursor requests, and preserve chronological scanning; the regression covers a resumed session with more than 100 historical messages. The commit is currently on the stacked PR #217.
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Actionable comments posted: 1
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Inline comments:
In `@src/local-agent-opencode.ts`:
- Around line 292-298: Update readOpencodeMessages usage in the polling flow and
extractOpenCodeFinalResponse to traverse paginated message history via
cursor.next until the submitted turn is available, omitting order when
requesting cursor pages and preserving chronological scanning. Add a regression
case with more than 100 historical messages to verify resumed sessions locate
the prompt and completion instead of timing out.
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📒 Files selected for processing (2)
src/local-agent-opencode.test.tssrc/local-agent-opencode.ts
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OpenCode 1.18 accepts a prompt before its foreground session is ready, and its v2 wait endpoint can return
Session wait is not available yeteven after the model has finished. That made a successful OpenCode turn surface as a provider failure.The adapter now observes the v2 active-session lifecycle and completed projected messages, with a compatibility fallback for clients without
session.active. A regression test covers the readiness race. I verified the change withnpm run typecheck,npm test,npm run build, and a live model-identification prompt against OpenCode 1.18.19.Summary by CodeRabbit