== MODE=absread given workspace <R>/data/ws, real <R>/deep/store/ws
exit 0; stdout: mock answer; stderr: 
POST /v1/messages: 2
tool_result sent back: [{"is_error":true,"content":"File does not exist. Note: your current working directory is <R>/deep/store/ws."}]
outside after the run: secret.txt
workspace after the run: 
== MODE=abswrite given workspace <R>/data/ws, real <R>/deep/store/ws
exit 0; stdout: mock answer; stderr: 
POST /v1/messages: 2
tool_result sent back: [{"is_error":false,"content":"File created successfully at: <R>/data/ws/../../data/ws/planted.txt (file state is current in your context — no need to Read it back)"}]
outside after the run: secret.txt
workspace after the run: planted.txt
