{"repo":"NousResearch/hermes-agent","public_id":"3587","display_label":"Terminal fence markers leaking into file content","summary":"A bug where heredoc or oneshot terminal execution causes internal fence/wrapper markers (HERMES_FENCE) to bleed into file content, silently corrupting files. Multiple fix attempts address this from both the terminal and file-read sides.","subsystem":"environments","counts":{"members":5,"open_issues":0,"open_issues_distinct":0,"open_prs":0,"closed_issues":2,"merged_prs":1,"attempt_prs":2},"landed_fix":{"status":"merged_to_main","basis":"structural","pr":19426},"resolution":{"state":"partially_resolved","by":"pr-19426"},"freshness":{"state":"verified","last_verified_at":"2026-05-03T23:58:51+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_PARTIAL","link_density":0.33599999999999997},"fix_edges":[{"issue_number":5400,"pr_number":19426,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true}],"members":[{"kind":"issue","number":3587,"title":"[Bug]: terminal tool corrupts files when using heredoc syntax - shell wrapper artifacts bleed into file content","url":null,"state":"closed"},{"kind":"issue","number":5400,"title":"[Bug]: HERMES_FENCE markers leak into file content via ShellFileOperations — corrupts source files silently","url":null,"state":"closed"},{"kind":"pr","number":3613,"title":"fix(terminal): prevent fence wrapper from bleeding into heredoc content","url":null,"state":"closed","close_reason":{"category":"uncategorized","implication":"needs_llm"},"merged":false},{"kind":"pr","number":19266,"title":"fix(file): strip leaked terminal fences from reads","url":null,"state":"closed","close_reason":{"refs":[{"kind":"pr","value":"#19426","number":19426}],"category":"merged_via","implication":"superseded"},"merged":false},{"kind":"pr","number":19426,"title":"fix(file): strip leaked terminal fences from reads","url":null,"state":"merged","close_reason":{"category":"merged","implication":"superseded"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["tests/tools/test_file_operations.py","tools/file_operations.py"]}],"trust":{"default_tier":"verified","includes_suggested":false}}