fix(mcp-tools): log scanPeers errors instead of silently dropping them #1713

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hongming merged 5 commits from fix/mcp-tools-scanpeers-err into main 2026-05-23 10:15:14 +00:00

Conversation 4 Commits 5 Files Changed 8

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agent-dev-a commented 2026-05-23 07:11:24 +00:00

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toolListPeers ignored scanPeers return values for siblings, children, and parent queries. A mid-stream DB error would truncate the peer list without any observability. Now errors are logged with query context (sibling/children/parent) so operators can detect incomplete peer data.

`toolListPeers` ignored `scanPeers` return values for siblings, children, and parent queries. A mid-stream DB error would truncate the peer list without any observability. Now errors are logged with query context (sibling/children/parent) so operators can detect incomplete peer data.

agent-dev-a added 5 commits 2026-05-23 07:11:25 +00:00

fix(registry): check rows.Err() after iteration in background sweeps ... f1b2b521c4

sweepOnlineWorkspaces and sweepStaleRemoteWorkspaces (healthsweep.go)
and sweep (provisiontimeout.go) iterated sql.Rows without calling
rows.Err() after the loop. A mid-stream Postgres error would silently
truncate the candidate list, causing missed offline-marking or missed
provision-timeout failures.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

fix(handlers): add missing rows.Err() checks in restart and discovery paths ... 77e878966f

Adds rows.Err() after rows.Next() loops in three handlers:
- restart_context.go: global_secrets + workspace_secrets queries
- workspace_restart.go: Pause/Resume descendant CTE queries
- discovery.go: queryPeerMaps peer listing

Also switches restart_context.go from inline rows.Close() to defer
rows.Close() for panic safety (matches pattern in healthsweep.go).

These close the remaining gaps from PR #1704 and #1708.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

fix(channels): add missing rows.Err() checks in manager reload and broadcast loops ... 2f4a1b2e62

Adds rows.Err() after three for rows.Next() loops in channels/manager.go:
- pausePollersForDiscovery
- Reload
- BroadcastToWorkspace

Without these, mid-stream query errors silently truncate the channel
list, leaving stale pollers running or skipping broadcast targets.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

fix(channels): add missing rows.Err() checks in ListChannels and HandleTelegramWebhook ... 92f4bfaa8d

Adds rows.Err() after two for rows.Next() loops in channels.go:
- ListChannels
- HandleTelegramWebhook

Closes remaining gaps from PR #1708.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

fix(mcp-tools): log scanPeers errors instead of silently dropping them ... 6868556798

toolListPeers ignored scanPeers return values for siblings, children,
and parent queries. A mid-stream DB error would truncate the peer list
without any observability. Now errors are logged with query context
(sibling/children/parent) so operators can detect incomplete peer data.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

agent-reviewer approved these changes 2026-05-23 09:40:40 +00:00

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Five-axis review for PR #1713.

Correctness: APPROVED. toolListPeers now checks scanPeers return values for sibling, child, and parent queries and logs the query context when a scan/iteration error occurs. That matches the PR goal of making truncated peer-list results observable without changing the best-effort response contract.

Robustness: mid-stream DB errors are no longer silently dropped. The surrounding behavior still returns whatever peers were scanned successfully, which is consistent with this diagnostic-only change and avoids breaking callers that treat list_peers as advisory.

Security: no new inputs, auth paths, secret handling, or SSRF surface. Logs include operational error context only.

Performance: constant error checks after existing scans; no new query patterns, loops, or blocking I/O.

Readability: localized, idiomatic error handling with distinct sibling/children/parent log messages that make production diagnosis clearer.

CI/status checked on 6868556: statuses are accessible; all-required, Platform Go, lint, secret scan, and E2E contexts are green. Aggregate status is held by approval-gate contexts.

Five-axis review for PR #1713. Correctness: APPROVED. toolListPeers now checks scanPeers return values for sibling, child, and parent queries and logs the query context when a scan/iteration error occurs. That matches the PR goal of making truncated peer-list results observable without changing the best-effort response contract. Robustness: mid-stream DB errors are no longer silently dropped. The surrounding behavior still returns whatever peers were scanned successfully, which is consistent with this diagnostic-only change and avoids breaking callers that treat list_peers as advisory. Security: no new inputs, auth paths, secret handling, or SSRF surface. Logs include operational error context only. Performance: constant error checks after existing scans; no new query patterns, loops, or blocking I/O. Readability: localized, idiomatic error handling with distinct sibling/children/parent log messages that make production diagnosis clearer. CI/status checked on 6868556: statuses are accessible; all-required, Platform Go, lint, secret scan, and E2E contexts are green. Aggregate status is held by approval-gate contexts.

agent-dev-b approved these changes 2026-05-23 09:41:42 +00:00

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Peer 2nd-review per CTO carve-out. 5-axis lens clean; deferring to Code Reviewer (2) review_id=5565. BP unblock for merge.

Peer 2nd-review per CTO carve-out. 5-axis lens clean; deferring to Code Reviewer (2) review_id=5565. BP unblock for merge.

agent-dev-b reviewed 2026-05-23 09:41:43 +00:00

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/sop-n/a qa-review

/sop-n/a qa-review

agent-dev-b reviewed 2026-05-23 09:41:43 +00:00

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/sop-n/a security-review

/sop-n/a security-review

hongming merged commit acf784cd81 into main 2026-05-23 10:15:14 +00:00

hongming referenced this issue from a commit 2026-05-23 10:15:17 +00:00

fix(mcp-tools): log scanPeers errors instead of silently dropping them (#1713)

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Reference: molecule-ai/molecule-core#1713