Summary

Background-task finalization swallowed all errors, including non-transient ones. Log the swallowed error via formatForLog at warn so failures are observable, while staying non-blocking.

• Files: src/gateway/server-methods/agent.ts
• No CHANGELOG.md edit (release-only per AGENTS.md).

Why core (not ClawHub)

Core correctness fix touching src/gateway/server-methods/agent.ts — per AGENTS.md these stay in core (security/core hardening, bundled regressions, missing core APIs), not optional skill bundles routed to ClawHub.

Verification

• node scripts/run-vitest.mjs run src/gateway/server-methods/agent.test.ts => 302 passed
• pnpm tsgo:core (tsconfig.core.json) => clean
• oxfmt --check + oxlint on touched files => clean

Real behavior proof

• Behavior addressed: Non-transient background-task finalization failures are now logged (redacted via formatForLog) instead of silently dropped; the run still completes.
• Real environment tested: macOS (Darwin 25.3.0); OpenClaw at base 2accfee; Node 22; Vitest via scripts/run-vitest.mjs.
• Exact steps or command run after this patch: node scripts/run-vitest.mjs run src/gateway/server-methods/agent.test.ts
• Evidence after fix: 302 tests pass, incl. a new case: a thrown finalize error is logged at warn without blocking the run.
• Observed result after fix: Both finalize/start catch sites covered; logging is non-blocking; uses the already-imported formatForLog (redaction applied once).
• What was not tested: Full Crabbox/live gateway E2E; Linux CI.. Independently reviewed by a separate agent before commit; not yet run through Crabbox/$autoreview.

🤖 Generated with Claude Code