test(snapshot): cover same-mode blank reasons in a dedicated scenario

apps/web/tests/diff-context.e2e.ts

@@ -13,7 +13,7 @@ const ROOT = fileURLToPath(new URL('../../../snapshots', import.meta.url))
 const MODE = webSnapshotMode()
 
 const CASES = [
-  { name: 'diff-context', source: 'session/fs-edit/session.v4.jsonl', totals: '+1 -1', shared: 'level=info', inventory: ['ui.expected.md'] },
+  { name: 'diff-context', source: 'session/fs-edit/session.v3.jsonl', totals: '+1 -1', shared: 'level=info', inventory: ['ui.expected.md'] },
   { name: 'diff-bounded', source: 'web/diff-bounded/session.v3.jsonl', totals: '+130 -130', shared: 'shared heading', inventory: ['session.v3.jsonl', 'ui.expected.md'] },
 ]
 

snapshots/session/fs-edit/snapshot.yml

@@ -2,7 +2,7 @@ version: 1
 scenario: fs-edit
 profile: headless
 composition: default
-recording: authored
+recording: live
 header:
   class: default
 workspace:

snapshots/session/fs-same-mode-empty-justification/session.v4.jsonl

@@ -2,26 +2,31 @@
 {"type":"permission/preset","data":{"preset":"danger-full-access"}}
 {"type":"sandbox/mode","data":{"mode":"danger-full-access"}}
 {"type":"approval/policy","data":{"policy":"never"}}
-{"type":"agent/inbox/spliced","data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"First use the read tool to read config.txt in the current directory. Then use the edit tool (NOT bash) to replace the literal text DEBUG with RELEASE in that file. Then reply with exactly the single word DONE."}],"source":{"kind":"user"},"role":"user","id":"{{message:1}}"}]}}
+{"type":"agent/inbox/spliced","data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"First use the write tool (NOT bash) to create a file named notes.txt in the current directory containing exactly the single line: hello world. Then use the read tool to read config.txt in the current directory. Then use the edit tool (NOT bash) to replace the literal text DEBUG with RELEASE in that file. Then reply with exactly the single word DONE."}],"source":{"kind":"user"},"role":"user","id":"{{message:1}}"}]}}
 {"type":"turn/start","data":{"turn":1}}
 {"type":"agent/inbox/spliced","data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
 {"type":"step/start","data":{"turn":1,"step":1}}
 {"type":"system/message","data":{"turn":1,"step":1,"message":{"role":"system","content":[{"type":"text","text":"{{system}}"}],"source":{"kind":"system-prompt"},"id":"{{message:2}}"}},"surfaceOp":"append"}
-{"type":"user/message","data":{"content":[{"type":"text","text":"First use the read tool to read config.txt in the current directory. Then use the edit tool (NOT bash) to replace the literal text DEBUG with RELEASE in that file. Then reply with exactly the single word DONE."}],"source":{"kind":"user"},"role":"user","id":"{{message:1}}"},"surfaceOp":"append"}
+{"type":"user/message","data":{"content":[{"type":"text","text":"First use the write tool (NOT bash) to create a file named notes.txt in the current directory containing exactly the single line: hello world. Then use the read tool to read config.txt in the current directory. Then use the edit tool (NOT bash) to replace the literal text DEBUG with RELEASE in that file. Then reply with exactly the single word DONE."}],"source":{"kind":"user"},"role":"user","id":"{{message:1}}"},"surfaceOp":"append"}
 {"type":"user/message","data":{"content":[{"type":"text","text":"Current runtime context. This snapshot supersedes earlier runtime-context snapshots.\n\nCurrent DSH file policy: danger-full-access. The DSH file sandbox does not restrict file modifications by available operations.\n\nApproval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`)."}],"source":{"kind":"runtime-context","form":"snapshot","sections":[{"name":"sandbox:policy","text":"Current DSH file policy: danger-full-access. The DSH file sandbox does not restrict file modifications by available operations."},{"name":"approval:policy","text":"Approval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`)."}]},"role":"user","id":"{{message:3}}"},"surfaceOp":"append"}
 {"type":"request/header","data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"tools":"{{tools}}"},"reason":"initial"}}
 {"type":"request/context","data":{"provider":"deepseek-official","model":"deepseek-v4-flash"}}
-{"type":"session/title","data":{"title":"First use the read tool","messageSeqs":[8],"source":{"kind":"fallback"}}}
-{"type":"assistant/message","data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"fs-edit-read","name":"read","arguments":"{\"file_path\":\"config.txt\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:4}}"},"usage":{"inputTokens":10,"outputTokens":5},"stream":[{"type":"chunk","time":1788699361025,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}},{"type":"tool-call-chunks","time0":1788699361025,"index":0,"dt":[],"id":"fs-edit-read","name":"read","args":["{\"file_path\":\"config.txt\"}"]},{"type":"chunk","time":1788699361025,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"fs-edit-read","name":"read","arguments":"{\"file_path\":\"config.txt\"}"}}},{"type":"chunk","time":1788699361025,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}},{"type":"chunk","time":1788699361025,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}]},"surfaceOp":"append"}
-{"type":"tool/call","data":{"turn":1,"step":1,"callId":"fs-edit-read","name":"read","arguments":"{\"file_path\":\"config.txt\"}"}}
-{"type":"tool/result","data":{"turn":1,"step":1,"message":{"role":"tool","source":{"kind":"tool","callId":"fs-edit-read"},"toolCallId":"fs-edit-read","content":[{"type":"text","text":"<path>{{cwd}}/config.txt</path>\n<type>file</type>\n<content>\n1: mode=DEBUG\n2: level=info\n\n(End of file - total 2 lines)\n</content>"}],"isError":false,"id":"{{message:5}}"},"meta":{"path":"{{cwd}}/config.txt","offset":1,"lines":[{"number":1,"text":"mode=DEBUG"},{"number":2,"text":"level=info"}],"totalLines":2}},"sourceEventSeqs":[14],"surfaceOp":"append"}
+{"type":"session/title","data":{"title":"First use the write tool","messageSeqs":[8],"source":{"kind":"fallback"}}}
+{"type":"assistant/message","data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The user wants me to create a file named notes.txt with the content \"hello world\" using the write tool, then reply with \"DONE\"."},{"type":"tool-call","id":"call_00_APMUCJJm9lrTSlVbg6dB0185","name":"write","arguments":"{\"file_path\": \"notes.txt\", \"content\": \"hello world\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:4}}"},"usage":{"inputTokens":2891,"outputTokens":92,"cacheReadTokens":0,"reasoningTokens":30},"stream":[{"type":"chunk","time":1788699367607,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}},{"type":"reasoning-chunks","time0":1788699367607,"index":0,"dt":[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"texts":["The"," user"," wants"," me"," to"," create"," a"," file"," named"," notes",".txt"," with"," the"," content"," \"","hello"," world","\""," using"," the"," write"," tool",","," then"," reply"," with"," \"","D","ONE","\"."]},{"type":"chunk","time":1788699367608,"chunk":{"type":"block-start","index":1,"blockType":"tool-call"}},{"type":"tool-call-chunks","time0":1788699367608,"index":1,"dt":[],"id":"call_00_APMUCJJm9lrTSlVbg6dB0185","name":"write","args":["{\"file_path\": \"notes.txt\", \"content\": \"hello world\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"]},{"type":"chunk","time":1788699367608,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to create a file named notes.txt with the content \"hello world\" using the write tool, then reply with \"DONE\"."}}},{"type":"chunk","time":1788699367608,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_00_APMUCJJm9lrTSlVbg6dB0185","name":"write","arguments":"{\"file_path\": \"notes.txt\", \"content\": \"hello world\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}}},{"type":"chunk","time":1788699367608,"chunk":{"type":"usage","usage":{"inputTokens":2891,"outputTokens":92,"cacheReadTokens":0,"reasoningTokens":30}}},{"type":"chunk","time":1788699367608,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}]},"surfaceOp":"append"}
+{"type":"tool/call","data":{"turn":1,"step":1,"callId":"call_00_APMUCJJm9lrTSlVbg6dB0185","name":"write","arguments":"{\"file_path\": \"notes.txt\", \"content\": \"hello world\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}}
+{"type":"tool/result","data":{"turn":1,"step":1,"message":{"role":"tool","source":{"kind":"tool","callId":"call_00_APMUCJJm9lrTSlVbg6dB0185"},"toolCallId":"call_00_APMUCJJm9lrTSlVbg6dB0185","content":[{"type":"text","text":"<path>{{cwd}}/notes.txt</path>\n<type>file</type>\n<content>\nCreated file\n</content>"}],"isError":false,"id":"{{message:5}}"},"meta":{"operation":"create","diffs":[]}},"sourceEventSeqs":[14],"surfaceOp":"append"}
 {"type":"step/end","data":{"turn":1,"step":1}}
 {"type":"step/start","data":{"turn":1,"step":2}}
-{"type":"assistant/message","data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"tool-call","id":"fs-edit-replace","name":"edit","arguments":"{\"file_path\": \"config.txt\", \"old_string\": \"DEBUG\", \"new_string\": \"RELEASE\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:6}}"},"usage":{"inputTokens":10,"outputTokens":5},"stream":[{"type":"chunk","time":1788699361045,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}},{"type":"tool-call-chunks","time0":1788699361045,"index":0,"dt":[],"id":"fs-edit-replace","name":"edit","args":["{\"file_path\": \"config.txt\", \"old_string\": \"DEBUG\", \"new_string\": \"RELEASE\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"]},{"type":"chunk","time":1788699361045,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"fs-edit-replace","name":"edit","arguments":"{\"file_path\": \"config.txt\", \"old_string\": \"DEBUG\", \"new_string\": \"RELEASE\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}}},{"type":"chunk","time":1788699361045,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}},{"type":"chunk","time":1788699361045,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}]},"surfaceOp":"append"}
-{"type":"tool/call","data":{"turn":1,"step":2,"callId":"fs-edit-replace","name":"edit","arguments":"{\"file_path\": \"config.txt\", \"old_string\": \"DEBUG\", \"new_string\": \"RELEASE\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}}
-{"type":"tool/result","data":{"turn":1,"step":2,"message":{"role":"tool","source":{"kind":"tool","callId":"fs-edit-replace"},"toolCallId":"fs-edit-replace","content":[{"type":"text","text":"The file {{cwd}}/config.txt has been updated successfully."}],"isError":false,"id":"{{message:7}}"},"meta":{"diffs":[{"path":"config.txt","oldText":"mode=DEBUG\nlevel=info","newText":"mode=RELEASE\nlevel=info"}]}},"sourceEventSeqs":[19],"surfaceOp":"append"}
+{"type":"assistant/message","data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"tool-call","id":"fs-edit-read","name":"read","arguments":"{\"file_path\":\"config.txt\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:6}}"},"usage":{"inputTokens":10,"outputTokens":5},"stream":[{"type":"chunk","time":1788699361025,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}},{"type":"tool-call-chunks","time0":1788699361025,"index":0,"dt":[],"id":"fs-edit-read","name":"read","args":["{\"file_path\":\"config.txt\"}"]},{"type":"chunk","time":1788699361025,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"fs-edit-read","name":"read","arguments":"{\"file_path\":\"config.txt\"}"}}},{"type":"chunk","time":1788699361025,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}},{"type":"chunk","time":1788699361025,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}]},"surfaceOp":"append"}
+{"type":"tool/call","data":{"turn":1,"step":2,"callId":"fs-edit-read","name":"read","arguments":"{\"file_path\":\"config.txt\"}"}}
+{"type":"tool/result","data":{"turn":1,"step":2,"message":{"role":"tool","source":{"kind":"tool","callId":"fs-edit-read"},"toolCallId":"fs-edit-read","content":[{"type":"text","text":"<path>{{cwd}}/config.txt</path>\n<type>file</type>\n<content>\n1: mode=DEBUG\n2: level=info\n\n(End of file - total 2 lines)\n</content>"}],"isError":false,"id":"{{message:7}}"},"meta":{"path":"{{cwd}}/config.txt","offset":1,"lines":[{"number":1,"text":"mode=DEBUG"},{"number":2,"text":"level=info"}],"totalLines":2}},"sourceEventSeqs":[19],"surfaceOp":"append"}
 {"type":"step/end","data":{"turn":1,"step":2}}
 {"type":"step/start","data":{"turn":1,"step":3}}
-{"type":"assistant/message","data":{"turn":1,"step":3,"message":{"role":"assistant","content":[{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:8}}"},"usage":{"inputTokens":10,"outputTokens":2},"stream":[{"type":"chunk","time":1788699361070,"chunk":{"type":"block-start","index":0,"blockType":"text"}},{"type":"text-chunks","time0":1788699361070,"index":0,"dt":[],"texts":["DONE"]},{"type":"chunk","time":1788699361070,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DONE"}}},{"type":"chunk","time":1788699361070,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":2}}},{"type":"chunk","time":1788699361070,"chunk":{"type":"finish","reason":{"kind":"stop"}}}]},"surfaceOp":"append"}
+{"type":"assistant/message","data":{"turn":1,"step":3,"message":{"role":"assistant","content":[{"type":"tool-call","id":"fs-edit-replace","name":"edit","arguments":"{\"file_path\": \"config.txt\", \"old_string\": \"DEBUG\", \"new_string\": \"RELEASE\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:8}}"},"usage":{"inputTokens":10,"outputTokens":5},"stream":[{"type":"chunk","time":1788699361045,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}},{"type":"tool-call-chunks","time0":1788699361045,"index":0,"dt":[],"id":"fs-edit-replace","name":"edit","args":["{\"file_path\": \"config.txt\", \"old_string\": \"DEBUG\", \"new_string\": \"RELEASE\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"]},{"type":"chunk","time":1788699361045,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"fs-edit-replace","name":"edit","arguments":"{\"file_path\": \"config.txt\", \"old_string\": \"DEBUG\", \"new_string\": \"RELEASE\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}}},{"type":"chunk","time":1788699361045,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}},{"type":"chunk","time":1788699361045,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}]},"surfaceOp":"append"}
+{"type":"tool/call","data":{"turn":1,"step":3,"callId":"fs-edit-replace","name":"edit","arguments":"{\"file_path\": \"config.txt\", \"old_string\": \"DEBUG\", \"new_string\": \"RELEASE\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}}
+{"type":"tool/result","data":{"turn":1,"step":3,"message":{"role":"tool","source":{"kind":"tool","callId":"fs-edit-replace"},"toolCallId":"fs-edit-replace","content":[{"type":"text","text":"The file {{cwd}}/config.txt has been updated successfully."}],"isError":false,"id":"{{message:9}}"},"meta":{"diffs":[{"path":"config.txt","oldText":"mode=DEBUG\nlevel=info","newText":"mode=RELEASE\nlevel=info"}]}},"sourceEventSeqs":[24],"surfaceOp":"append"}
 {"type":"step/end","data":{"turn":1,"step":3}}
+{"type":"step/start","data":{"turn":1,"step":4}}
+{"type":"assistant/message","data":{"turn":1,"step":4,"message":{"role":"assistant","content":[{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:10}}"},"usage":{"inputTokens":10,"outputTokens":2},"stream":[{"type":"chunk","time":1788699361070,"chunk":{"type":"block-start","index":0,"blockType":"text"}},{"type":"text-chunks","time0":1788699361070,"index":0,"dt":[],"texts":["DONE"]},{"type":"chunk","time":1788699361070,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DONE"}}},{"type":"chunk","time":1788699361070,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":2}}},{"type":"chunk","time":1788699361070,"chunk":{"type":"finish","reason":{"kind":"stop"}}}]},"surfaceOp":"append"}
+{"type":"step/end","data":{"turn":1,"step":4}}
 {"type":"turn/end","data":{"turn":1,"reason":{"kind":"completed"}}}

snapshots/session/fs-same-mode-empty-justification/snapshot.yml

@@ -0,0 +1,9 @@
+version: 1
+scenario: fs-same-mode-empty-justification
+profile: headless
+composition: default
+recording: authored
+header:
+  class: default
+workspace:
+  final: true

snapshots/session/fs-same-mode-empty-justification/workspace.expected/config.txt

@@ -0,0 +1,2 @@
+mode=RELEASE
+level=info

snapshots/session/fs-same-mode-empty-justification/workspace.expected/notes.txt

@@ -0,0 +1 @@
+hello world

snapshots/session/fs-same-mode-empty-justification/workspace/config.txt

@@ -0,0 +1,2 @@
+mode=DEBUG
+level=info

snapshots/session/fs-write/session.v4.jsonl

@@ -1,22 +0,0 @@
-{"type":"session","version":4,"id":"{{session:1}}","createdAt":1783352078749,"cwd":"{{cwd}}","isSeeded":false,"delegationDepth":0}
-{"type":"permission/preset","data":{"preset":"danger-full-access"}}
-{"type":"sandbox/mode","data":{"mode":"danger-full-access"}}
-{"type":"approval/policy","data":{"policy":"never"}}
-{"type":"agent/inbox/spliced","data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Use the write tool (NOT bash) to create a file named notes.txt in the current directory containing exactly the single line: hello world. Then reply with exactly the single word DONE."}],"source":{"kind":"user"},"role":"user","id":"{{message:1}}"}]}}
-{"type":"turn/start","data":{"turn":1}}
-{"type":"agent/inbox/spliced","data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
-{"type":"step/start","data":{"turn":1,"step":1}}
-{"type":"system/message","data":{"turn":1,"step":1,"message":{"role":"system","content":[{"type":"text","text":"{{system}}"}],"source":{"kind":"system-prompt"},"id":"{{message:2}}"}},"surfaceOp":"append"}
-{"type":"user/message","data":{"content":[{"type":"text","text":"Use the write tool (NOT bash) to create a file named notes.txt in the current directory containing exactly the single line: hello world. Then reply with exactly the single word DONE."}],"source":{"kind":"user"},"role":"user","id":"{{message:1}}"},"surfaceOp":"append"}
-{"type":"user/message","data":{"content":[{"type":"text","text":"Current runtime context. This snapshot supersedes earlier runtime-context snapshots.\n\nCurrent DSH file policy: danger-full-access. The DSH file sandbox does not restrict file modifications by available operations.\n\nApproval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`)."}],"source":{"kind":"runtime-context","form":"snapshot","sections":[{"name":"sandbox:policy","text":"Current DSH file policy: danger-full-access. The DSH file sandbox does not restrict file modifications by available operations."},{"name":"approval:policy","text":"Approval prompts are disabled in this session: actions that require approval are rejected automatically — do not request sandbox escalation (do not set `sandbox_permissions`)."}]},"role":"user","id":"{{message:3}}"},"surfaceOp":"append"}
-{"type":"request/header","data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"tools":"{{tools}}"},"reason":"initial"}}
-{"type":"request/context","data":{"provider":"deepseek-official","model":"deepseek-v4-flash"}}
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-{"type":"assistant/message","data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The user wants me to create a file named notes.txt with the content \"hello world\" using the write tool, then reply with \"DONE\"."},{"type":"tool-call","id":"call_00_APMUCJJm9lrTSlVbg6dB0185","name":"write","arguments":"{\"file_path\": \"notes.txt\", \"content\": \"hello world\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:4}}"},"usage":{"inputTokens":2891,"outputTokens":92,"cacheReadTokens":0,"reasoningTokens":30},"stream":[{"type":"chunk","time":1788699367607,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}},{"type":"reasoning-chunks","time0":1788699367607,"index":0,"dt":[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"texts":["The"," user"," wants"," me"," to"," create"," a"," file"," named"," notes",".txt"," with"," the"," content"," \"","hello"," world","\""," using"," the"," write"," tool",","," then"," reply"," with"," \"","D","ONE","\"."]},{"type":"chunk","time":1788699367608,"chunk":{"type":"block-start","index":1,"blockType":"tool-call"}},{"type":"tool-call-chunks","time0":1788699367608,"index":1,"dt":[],"id":"call_00_APMUCJJm9lrTSlVbg6dB0185","name":"write","args":["{\"file_path\": \"notes.txt\", \"content\": \"hello world\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"]},{"type":"chunk","time":1788699367608,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to create a file named notes.txt with the content \"hello world\" using the write tool, then reply with \"DONE\"."}}},{"type":"chunk","time":1788699367608,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_00_APMUCJJm9lrTSlVbg6dB0185","name":"write","arguments":"{\"file_path\": \"notes.txt\", \"content\": \"hello world\", \"sandbox_permissions\": \"danger-full-access\", \"justification\": \"\"}"}}},{"type":"chunk","time":1788699367608,"chunk":{"type":"usage","usage":{"inputTokens":2891,"outputTokens":92,"cacheReadTokens":0,"reasoningTokens":30}}},{"type":"chunk","time":1788699367608,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}]},"surfaceOp":"append"}
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-{"type":"step/end","data":{"turn":1,"step":1}}
-{"type":"step/start","data":{"turn":1,"step":2}}
-{"type":"assistant/message","data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The file has been created. Now I just need to reply with \"DONE\"."},{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{message:6}}"},"usage":{"inputTokens":214,"outputTokens":20,"cacheReadTokens":2816,"reasoningTokens":17},"stream":[{"type":"chunk","time":1788699367638,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}},{"type":"reasoning-chunks","time0":1788699367638,"index":0,"dt":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"texts":["The"," file"," has"," been"," created","."," Now"," I"," just"," need"," to"," reply"," with"," \"","D","ONE","\"."]},{"type":"chunk","time":1788699367638,"chunk":{"type":"block-start","index":1,"blockType":"text"}},{"type":"text-chunks","time0":1788699367638,"index":1,"dt":[0],"texts":["D","ONE"]},{"type":"chunk","time":1788699367638,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The file has been created. Now I just need to reply with \"DONE\"."}}},{"type":"chunk","time":1788699367638,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"DONE"}}},{"type":"chunk","time":1788699367638,"chunk":{"type":"usage","usage":{"inputTokens":214,"outputTokens":20,"cacheReadTokens":2816,"reasoningTokens":17}}},{"type":"chunk","time":1788699367638,"chunk":{"type":"finish","reason":{"kind":"stop"}}}]},"surfaceOp":"append"}
-{"type":"step/end","data":{"turn":1,"step":2}}
-{"type":"turn/end","data":{"turn":1,"reason":{"kind":"completed"}}}

snapshots/session/fs-write/snapshot.yml

@@ -2,7 +2,7 @@ version: 1
 scenario: fs-write
 profile: headless
 composition: default
-recording: authored
+recording: live
 header:
   class: default
 workspace:

snapshots/web/diff-context/snapshot.yml

@@ -6,4 +6,4 @@ recording: authored
 header:
   class: default
 session:
-  source: ../../session/fs-edit/session.v4.jsonl
+  source: ../../session/fs-edit/session.v3.jsonl