[FEATURE]: --format json does not print reasoning_content.

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--format json does not print reasoning_content for now:

$ opencode run --log-level DEBUG --format json --model xiaomi/mimo-v2-flash-thinking 'Using browser tool to close the browser.'
{"type":"step_start","timestamp":1767790882247,"sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","part":{"id":"prt_b988c2dc6001bXsFv0OrsMkp8a","sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","messageID":"msg_b988c1a5f001fxnzwEnS8bqiNq","type":"step-start"}}
{"type":"tool_use","timestamp":1767790883443,"sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","part":{"id":"prt_b988c31f9001fsXAlUj7wQVAkN","sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","messageID":"msg_b988c1a5f001fxnzwEnS8bqiNq","type":"tool","callID":"call_d46153bfcf1f4f5c9e90347f","tool":"browser_browser_close","state":{"status":"completed","input":{},"output":"{\n  \"message\": \"Browser closed successfully\"\n}","title":"","metadata":{},"time":{"start":1767790883323,"end":1767790883439},"attachments":[]}}}
{"type":"step_finish","timestamp":1767790883443,"sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","part":{"id":"prt_b988c327100194VEblCc5wCY8h","sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","messageID":"msg_b988c1a5f001fxnzwEnS8bqiNq","type":"step-finish","reason":"tool-calls","cost":0.00121912,"tokens":{"input":16954,"output":85,"reasoning":69,"cache":{"read":5,"write":0}}}}
{"type":"step_start","timestamp":1767790885083,"sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","part":{"id":"prt_b988c38db001sNqLOAk31H8Hyn","sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","messageID":"msg_b988c3275001ZD3deWquk5ki3r","type":"step-start"}}
{"type":"text","timestamp":1767790885769,"sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","part":{"id":"prt_b988c3ab3001x6ZfK5RGGaAyze","sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","messageID":"msg_b988c3275001ZD3deWquk5ki3r","type":"text","text":"The browser has been closed successfully.","time":{"start":1767790885768,"end":1767790885768}}}
{"type":"step_finish","timestamp":1767790885769,"sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","part":{"id":"prt_b988c3b88001dZqZV5k9fXzd6P","sessionID":"ses_46773e5bcffergbbCsAcLxPFQh","messageID":"msg_b988c3275001ZD3deWquk5ki3r","type":"step-finish","reason":"stop","cost":0.00106589,"tokens":{"input":15011,"output":41,"reasoning":31,"cache":{"read":2055,"write":0}}}}

I have already verified the reasoning_content can be displayed correctly in TUI.

This issue might be a duplicate of existing issues. Please check:

[FEATURE]: add option to Export thinking and tool use inputs/outputs #4609: [FEATURE]: add option to Export thinking and tool use inputs/outputs - requests exporting reasoning and tool use information in exports
[FEATURE]: support extracting reasoning XML #6337: [FEATURE]: support extracting reasoning XML - requests parsing and displaying reasoning content in the UI
DeepSeek V3.2 : reasoning_content not cleared from message history on new turns, causing excess token usage and violating API spec #5577: DeepSeek V3.2: reasoning_content not cleared from message history - involves handling reasoning_content in message structures
Can I get an easily human readable log file with plain text that just shows the whole conversation? #3274: Can I get an easily human readable log file - requests accessible output formats including conversation history

Feel free to ignore if none of these address your specific case.

claude-code uses a different json schema but have the thinking content:

{"type":"assistant","message":{"id":"05ad8e108c6bfe8a1eaf435a522609e7","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The user wants me to use the Glob tool to check the current directory. Let me do that.","signature":"40508f0504a4977eaa9335ad315b1eb9ff2c5a162e856c5eab4900fb5ce0f8b9"}],"model":"MiniMax-M2.1","stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":174,"output_tokens":0,"cache_creation_input_tokens":19480,"cache_read_input_tokens":0},"service_tier":"standard","context_management":null},"parent_tool_use_id":null,"session_id":"ae9675f2-e988-4dc9-9fba-823121faf6a4","uuid":"ab97f8b1-abd3-486b-bcec-e040a8950daa"}
{"type":"assistant","message":{"id":"05ad8e108c6bfe8a1eaf435a522609e7","type":"message","role":"assistant","content":[{"type":"tool_use","id":"call_function_b4q5ychg2ism_1","name":"Glob","input":{"pattern":"*"}}],"model":"MiniMax-M2.1","stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":174,"output_tokens":46,"cache_creation_input_tokens":19480,"cache_read_input_tokens":0},"service_tier":"standard","context_management":null},"parent_tool_use_id":null,"session_id":"ae9675f2-e988-4dc9-9fba-823121faf6a4","uuid":"b39d6ecf-ee22-4864-83ad-1ce2654b4fa8"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"call_function_b4q5ychg2ism_1","type":"tool_result","content":"No files found"}]},"parent_tool_use_id":null,"session_id":"ae9675f2-e988-4dc9-9fba-823121faf6a4","uuid":"5ee5fd17-2d27-45a5-ba67-f3853921394c","tool_use_result":{"filenames":[],"durationMs":5,"numFiles":0,"truncated":false}}
{"type":"assistant","message":{"id":"05ad8e12b18cc5bec09eeeeaf93f6826","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The current directory appears to be empty. Let me check if there are any files including hidden ones.","signature":"1143edc7d6cc0a27122dee6ef1b8c65e08bae55bcc92a01334f81b1907d1925d"}],"model":"MiniMax-M2.1","stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":188,"output_tokens":0,"cache_creation_input_tokens":247,"cache_read_input_tokens":19284},"service_tier":"standard","context_management":null},"parent_tool_use_id":null,"session_id":"ae9675f2-e988-4dc9-9fba-823121faf6a4","uuid":"2e0711f4-057f-4782-87e9-e258976ae9b4"}

If any of the terminal output I upload contains sensitive information, please remind me to remove it.

+1 as it would be really nice to have for ralph-loop-like implementations on top of opencode

@levabala

@levabala Try PR #7434. I don't know why still no maintainers look review this. It just 3 lines additions.

+1, I rely on this in my harness that I'd like to wire opencode to.

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[FEATURE]: --format json does not print reasoning_content. #7202

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[FEATURE]: --format json does not print reasoning_content. #7202

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github-actions commented on Jan 7, 2026

hksdpc255 commented on Jan 7, 2026

hksdpc255 commented on Jan 7, 2026

levabala commented on Jan 23, 2026

hksdpc255 commented on Jan 26, 2026

foglerek commented on Jan 27, 2026

github-actions commented on Mar 29, 2026

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