Crash on double-escape abort: JSON parse error from prompt response

Summary

Double-escaping to abort an active session intermittently crashes with SyntaxError: Unexpected end of JSON input from the JS SDK JSON parser.

Steps to reproduce

Run opencode TUI.
Start a session and trigger an agent task.
Press Esc twice to abort mid-work.
Observe crash.

Expected

Session aborts cleanly without a crash.

Actual

App crashes with JSON parse error when parsing the prompt response.

Logs

[09:17:24] [LOG] 'bootstrapping'
[09:17:25] [LOG] 'resolveSystemTheme'
[09:17:25] [LOG] '{"type":"home"}'
[09:17:26] [LOG] [
      '#1d1f21', '#cc6666',
      '#b5bd68', '#f0c674',
      '#81a2be', '#b294bb',
      '#8abeb7', '#c5c8c6',
      '#666666', '#d54e53',
      '#b9ca4a', '#e7c547',
      '#7aa6da', '#c397d8',
      '#70c0b1', '#eaeaea'
    ]
[09:17:49] [LOG] 'navigate' { type: 'session', sessionID: 'ses_44eee8c1cffeyYbm3ENuvzhYkm' }
[09:17:49] [LOG] '{"type":"session","sessionID":"ses_44eee8c1cffeyYbm3ENuvzhYkm"}'
[09:17:53] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/tree-sitter-markdown-411r6y9b.wasm'
[09:17:53] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/highlights-r812a2qc.scm'
[09:17:53] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/injections-73j83es3.scm'
[09:17:53] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/tree-sitter-markdown_inline-j5349f42.wasm'
[09:17:53] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/highlights-x6tmsnaa.scm'
[09:25:00] [ERROR] Error: Unexpected end of JSON input
    SyntaxError: Unexpected end of JSON input
        at <parse> (:0)
        at json (unknown)
        at <anonymous> (../sdk/js/src/v2/gen/client/client.gen.ts:167:33)
        at processTicksAndRejections (native:7:39)

same here

@rekram1-node

same here

@rekram1-node please fix, it is very annoying fatal bug happens more often with GLM 4.7 (FREE)

Same issue with opencode v1.1.19:

[10:38:14] [LOG] 'bootstrapping'
[10:38:15] [LOG] 'resolveSystemTheme'
[10:38:15] [LOG] '{"type":"home"}'
[10:38:16] [LOG] [
      '#1d1f21', '#cc6666',
      '#b5bd68', '#f0c674',
      '#81a2be', '#b294bb',
      '#8abeb7', '#c5c8c6',
      '#666666', '#d54e53',
      '#b9ca4a', '#e7c547',
      '#7aa6da', '#c397d8',
      '#70c0b1', '#eaeaea'
    ]
[10:42:49] [LOG] 'navigate' { type: 'session', sessionID: 'ses_44566aa53ffeq2ijchKTt6A4yi' }
[10:42:49] [LOG] '{"type":"session","sessionID":"ses_44566aa53ffeq2ijchKTt6A4yi"}'
[10:42:52] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/tree-sitter-markdown-411r6y9b.wasm'
[10:42:52] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/highlights-r812a2qc.scm'
[10:42:52] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/injections-73j83es3.scm'
[10:42:52] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/tree-sitter-markdown_inline-j5349f42.wasm'
[10:42:52] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/highlights-x6tmsnaa.scm'
[10:44:05] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/tree-sitter-typescript-zxjzwt75.wasm'
[10:44:05] [LOG] 'TSWorker:' 'Loading from local path: /$bunfs/root/highlights-eq9cgrbb.scm'
[10:48:22] [ERROR] Error: Unexpected end of JSON input
    SyntaxError: Unexpected end of JSON input
        at <parse> (:0)
        at json (unknown)
        at <anonymous> (../sdk/js/src/v2/gen/client/client.gen.ts:167:33)
        at processTicksAndRejections (native:7:39)

@thdxr

@thdxr Please fix it

I have a PR for it #7939

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Crash on double-escape abort: JSON parse error from prompt response #7946

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Crash on double-escape abort: JSON parse error from prompt response #7946

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anthony0727 commented on Jan 12, 2026

dhruvkej9 commented on Jan 12, 2026

lamualfa commented on Jan 14, 2026

dhruvkej9 commented on Jan 14, 2026

oorestisime commented on Jan 14, 2026

thdxr commented on Mar 25, 2026

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