fix(opencode-handler): only forward replies from a successful run

[gianlucamazza]

Summary

Follow-up to #119. opencode 2.x prints its errors (e.g. Could not reach server, unknown flags) on stdout with a non-zero exit. The handler's || true dropped the status, so a stopped server sent a stack trace as the agent's chat reply, with exit 0.

Now a reply is forwarded only when opencode run exits 0 with non-empty output; otherwise it retries and finally exits 1 (so serve sends nothing).

Test plan

• shellcheck scripts/opencode-handler.sh
• server stopped → exit 1, empty stdout (before: exit 0 + 853-byte stack trace)
• server running (opencode 2.0.8) → one-line Italian reply, exit 0

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes
  • Improved retry handling for AI runs so failed commands are no longer returned as successful chat replies.
  • Errors such as unavailable servers or invalid options are now handled as failures, while successful responses still require non-empty output.

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⚙️ Run configuration

Configuration used: defaults

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Run ID: 2da8f326-038a-44cf-b3dd-c43a5502a033

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Reviewing files that changed from the base of the PR and between 646692f and 1b5f743.

📒 Files selected for processing (1)

• scripts/opencode-handler.sh

📝 Walkthrough

Walkthrough

The retry loop now treats an OpenCode run as successful only when it exits with status 0 and produces non-empty output. Failed runs continue through the retry and final failure handling.

Changes

OpenCode retry handling

Layer / File(s)	Summary
Validate OpenCode results scripts/opencode-handler.sh	The retry loop now checks both the command status and response content before it stops retrying. It resets the reply between attempts. Failed command output is not returned as a chat reply.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Merge Risk: 🔵 Low · up to 64669

A narrow whitespace-only output case can bypass retries and produce no chat reply.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description explains the problem, the fix, and the test results. It does not use the required ## What heading and omits the required ## Checklist section and its repository checks.	Add the required ## What section with the change and reason. Add the complete ## Checklist section, and mark each item as checked or explain why it does not apply.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: forwarding replies only from successful opencode run executions.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

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Inline comments:
In `@scripts/opencode-handler.sh`:
- Line 52: Update runHandler’s reply validation before the [ -n "$reply" ]
condition to use the trimmed output, rejecting whitespace-only responses so
retries continue and the handler exits 1 when all attempts are empty.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

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Run ID: 12b76415-335f-4acb-8d45-622be1415ecc

📥 Commits

Reviewing files that changed from the base of the PR and between da2dd78 and 646692f.

📒 Files selected for processing (1)

• scripts/opencode-handler.sh

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