[Bug] Agent incorrectly assumes background tasks are complete

Bug Description
Agent doesn't see background tasks and nearly always thinks they are finished successfully, while actually they are not or are still running.

Environment Info

• Platform: win32
• Terminal: null
• Version: 2.1.86
• Feedback ID: 2c0b9f09-1d3c-4515-987e-b0e8a6efb52d

Errors

[{"error":"Error: Request was aborted.\n    at makeRequest (B:/~BUN/root/src/entrypoints/cli.js:50:3940)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-28T20:33:06.300Z"},{"error":"Error: Request was aborted.\n    at makeRequest (B:/~BUN/root/src/entrypoints/cli.js:50:3940)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-28T20:35:15.168Z"},{"error":"Error: ensureToolResultPairing: repaired missing tool_result blocks (75 -> 75 messages). Message structure: [0] user; [1] assistant(id=msg_01BJgD6d7t44PF3sgoNjsMjf, tool_uses=[toolu_013jG7EGoZ1f3JzL4DdyPAE4,toolu_01Akaydw7E4aWNsNo8o4Niys]); [2] user(tool_results=[toolu_013jG7EGoZ1f3JzL4DdyPAE4,toolu_01Akaydw7E4aWNsNo8o4Niys]); [3] assistant(id=msg_019CZTy5nyddPGUp5jvwwpaZ, tool_uses=[toolu_01ExHuBCtEQqK18A7mPNqwYH]); [4] user(tool_results=[toolu_01ExHuBCtEQqK18A7mPNqwYH]); [5] assistant(id=msg_01FPdirJZnZYkJxpwo5wUUta, tool_uses=[toolu_012e5vdmyZMgwRQ6rPDHJCVg,toolu_013Kr9nfkbnj61NvS33b6zT3,toolu_01P8zdCvzYBLvbdRaU1q2Em6]); [6] user(tool_results=[toolu_012e5vdmyZMgwRQ6rPDHJCVg,toolu_013Kr9nfkbnj61NvS33b6zT3,toolu_01P8zdCvzYBLvbdRaU1q2Em6]); [7] assistant(id=msg_019fU2DPL8umcS5cVVrdMGxi, tool_uses=[toolu_015wkggjrwSAamipMDrGSJxN]); [8] user(tool_results=[toolu_015wkggjrwSAamipMDrGSJxN]); [9] assistant(id=msg_01U1tk73u4dB6vVLSgMBAFWw, tool_uses=[toolu_01QkDtMtrtomoS7g52RND92P,toolu_015JSVARbo2dZL9w7tvzPc47,toolu_0173TkvjPhpusYdBuAtC4Jjz]); [10] user(tool_results=[toolu_01QkDtMtrtomoS7g52RND92P,toolu_015JSVARbo2dZL9w7tvzPc47,toolu_0173TkvjPhpusYdBuAtC4Jjz]); [11] assistant(id=msg_01BZHucdMw6cU9AzX5yVZTWi, tool_uses=[toolu_01QUw4s8KSLn4qmiyFR5Xym7,toolu_01KgSomvX7KiMzQyydDWSmmX]); [12] user(tool_results=[toolu_01QUw4s8KSLn4qmiyFR5Xym7,toolu_01KgSomvX7KiMzQyydDWSmmX]); [13] assistant(id=msg_01JrD3Mdt6msVXKmP2JEC5QE, tool_uses=[toolu_01WbimzeQyWm6bQJaAohWN5F,toolu_01UfeHkoi12a75V1kpC8Tc8G,toolu_016nKi1jZ5HUJpk78PRuGUZr]); [14] user(tool_results=[toolu_01WbimzeQyWm6bQJaAohWN5F,toolu_01UfeHkoi12a75V1kpC8Tc8G,toolu_016nKi1jZ5HUJpk78PRuGUZr]); [15] assistant(id=msg_01FitGVhRr9FoBPnYEmwNoqg, tool_uses=[toolu_01CmigegG93ThmJtekVEFEgH,toolu_01VAyk7mj7tqfXAfNpAgyWoV,toolu_01XqBHc4Jt4b8UiifVn1AXrM]); [16] user(tool_results=[toolu_01CmigegG93ThmJtekVEFEgH,toolu_01VAyk7mj7tqfXAfNpAgyWoV,toolu_01XqBHc4Jt4b8UiifVn1AXrM]); [17] assistant(id=msg_01YP3S6TZmrSF4eiXrArAY86, tool_uses=[toolu_01EhFbWtV3ze6QBiHWvAyCta,toolu_019Th9XbXRHtvrLcEEB9VgmB]); [18] user(tool_results=[toolu_01EhFbWtV3ze6QBiHWvAyCta,toolu_019Th9XbXRHtvrLcEEB9VgmB]); [19] assistant(id=msg_01GU1QUJjpJQ5JwUb2ddGxn9, tool_uses=[toolu_019rgx2NJpDaVRBAuJVVyjWW,toolu_01Av3KsQjsAaFjt1ubJde9aj]); [20] user(tool_results=[toolu_019rgx2NJpDaVRBAuJVVyjWW,toolu_01Av3KsQjsAaFjt1ubJde9aj]); [21] assistant(id=msg_014qZnJWNqgP9rLAfCC91Dyg, tool_uses=[toolu_01TWyvbtXAVRqx9zfG2q2shu,toolu_01Cpjv1sMtZ3P6gthLPaFdPp,toolu_01Q17ctpAdk9xpLLBJ9gz34n]); [22] user(tool_results=[toolu_01TWyvbtXAVRqx9zfG2q2shu,toolu_01Cpjv1sMtZ3P6gthLPaFdPp,toolu_01Q17ctpAdk9xpLLBJ9gz34n]); [23] assistant(id=msg_01XjJYXsdqAgzcbra9TAyFUi, tool_uses=[toolu_018z4fQ4NEiPGCJJLjQqCM9S,toolu_01L7NEhTfb739CBoS2dtPLLG,toolu_01TEm9eALAS7DwaNNxQHseqM]); [24] user(tool_results=[toolu_018z4fQ4NEiPGCJJLjQqCM9S,toolu_01L7NEhTfb739CBoS2dtPLLG,toolu_01TEm9eALAS7DwaNNxQHseqM]); [25] assistant(id=msg_01BTwqRer5W5qMJCXnfbj9Zj, tool_uses=[toolu_01SBWX9GgrGeZRcKcDgNNZfy,toolu_01FSzNPWU7QJD53AVWGc6rF9]); [26] user(tool_results=[toolu_01SBWX9GgrGeZRcKcDgNNZfy,toolu_01FSzNPWU7QJD53AVWGc6rF9]); [27] assistant(id=msg_01Syvc54fdfWCvzXiDtT8pFM, tool_uses=[toolu_01JFJsdM5d2pReaDVPbJFs8t,toolu_01ELEm2QDazWtxqfGfpa1woS]); [28] user(tool_results=[toolu_01JFJsdM5d2pReaDVPbJFs8t,toolu_01ELEm2QDazWtxqfGfpa1woS]); [29] assistant(id=msg_012i6HMpD6RMHCy2vFjCNQVx, tool_uses=[toolu_014Nb8cP2xPGzfBEzz4qD6fp,toolu_01G6oxQGdFywCVfRQbaLhaNJ,toolu_014QtucqodgdCbVzwQxGwgPn]); [30] user(tool_results=[toolu_014Nb8cP2xPGzfBEzz4qD6fp,toolu_01G6oxQGdFywCVfRQbaLhaNJ,toolu_014QtucqodgdCbVzwQxGwgPn]); [31] assistant(id=msg_01Qipi7SJSUf8QNe8g5xS5Ze, tool_uses=[toolu_01BK29NtrXF8JYZZesRhSQGz]); [32] user(tool_results=[toolu_01BK29NtrXF8JYZZesRhSQGz]); [33] assistant(id=msg_01Cj4VmE7pWZWNxxVj5Br3Gh, tool_uses=[toolu_01BYkJkSbsReSvQC4NyypVsG,toolu_016NAghgqGj7JcZpjfTa8tQ5]); [34] user(tool_results=[toolu_01BYkJkSbsReSvQC4NyypVsG,toolu_016NAghgqGj7JcZpjfTa8tQ5]); [35] assistant(id=msg_01HATRDrjoHmCfUegPAaYe38, tool_uses=[toolu_013jpqPKDZH8rUQk53hjo7pc]); [36] user(tool_results=[toolu_013jpqPKDZH8rUQk53hjo7pc]); [37] assistant(id=msg_018XYCY1MEyQ1CFinhMB5aJz, tool_uses=[]); [38] user; [39] assistant(id=msg_01PzxHfcFpnmxEf2RqzmhAcB, tool_uses=[toolu_014T6n1muJ3VsCgye24AEFxT]); [40] user(tool_results=[toolu_014T6n1muJ3VsCgye24AEFxT]); [41] assistant(id=msg_0152hfthwSgnit8WWkpHd5T9, tool_uses=[toolu_01TQG5HSce2nNVczjyFySkjh]); [42] user(tool_results=[toolu_01TQG5HSce2nNVczjyFySkjh]); [43] assistant(id=msg_01CASi12YQMYBtvoctPr78x1, tool_uses=[toolu_012g3nXqeZdEjcUZACtQuVQg]); [44] user(tool_results=[toolu_012g3nXqeZdEjcUZACtQuVQg]); [45] assistant(id=msg_01FfQHTdCUiAe3MPwCuPUhpu, tool_uses=[toolu_015nYjt7bHguwrWHXxgHiJuC]); [46] user(tool_results=[toolu_015nYjt7bHguwrWHXxgHiJuC]); [47] assistant(id=msg_013TjNTRvNq3hu8x7PJUtgoy, tool_uses=[toolu_01XbrY8hkSgCuhUsjgQPdj39]); [48] user(tool_res…

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