{"repo":"NousResearch/hermes-agent","public_id":"24744","display_label":"TOCTOU race conditions in singleton initializers","summary":"These items identify and address time-of-check-to-time-of-use race conditions that can produce duplicate singleton instances during concurrent initialization. Two specific singletons are affected: the SignalAttachmentScheduler and a TUI gateway database handle.","subsystem":"gateway","counts":{"members":3,"open_issues":1,"open_issues_distinct":1,"open_prs":1,"closed_issues":0,"merged_prs":0,"attempt_prs":2},"landed_fix":null,"resolution":{"state":"unresolved","by":null},"freshness":{"state":"never_verified","last_verified_at":null,"is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.6666666666666666},"fix_edges":[],"members":[{"kind":"issue","number":24744,"title":"bug(signal_rate_limit): TOCTOU race in get_scheduler() — concurrent calls can create duplicate SignalAttachmentScheduler instances","url":null,"state":"open"},{"kind":"pr","number":24746,"title":"fix(tui_gateway): prevent TOCTOU race in _get_db() singleton init","url":null,"state":"closed","close_reason":{"category":"uncategorized","implication":"needs_llm"},"merged":false,"is_fix_pr":true,"fix_tier":"suggested","fix_detail_withheld":true},{"kind":"pr","number":113564,"title":"fix(signal): converge racing get_scheduler() first touches on one instance","url":null,"state":"open","close_reason":{"category":"silent_close","implication":"active"},"merged":false}],"trust":{"default_tier":"verified","includes_suggested":false}}