Reading additional input from stdin...
OpenAI Codex v0.153.4
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workdir: /tmp/harnessfacts-0kIvQd/fixture
model: gpt-6-astra
provider: openai
approval: never
sandbox: workspace-write [workdir, /tmp, $TMPDIR]
reasoning effort: none
reasoning summaries: none
session id: 01a0803f-6adf-73e2-944d-b4f790ffa34a
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user
Read src/task.txt and follow the instructions applicable to it. Complete the task in that directory.
codex
I’ll read the task and applicable repository instructions, then complete it in `src`.

exec
/bin/bash -lc "pwd && rg --files -g 'AGENTS.md' -g 'task.txt' -g '"'!node_modules'"' -g '"'!.git'"'" in /tmp/harnessfacts-0kIvQd/fixture
 succeeded in 0ms:
/tmp/harnessfacts-0kIvQd/fixture
src/task.txt
task.txt
src/AGENTS.md
AGENTS.md

exec
/bin/bash -lc 'cat AGENTS.md src/AGENTS.md src/task.txt' in /tmp/harnessfacts-0kIvQd/fixture
 succeeded in 0ms:
For all tasks in this repository write exactly ROOT into result.txt in the task directory.
For tasks in this directory write exactly NESTED into result.txt in this directory.
Write the token specified by applicable repository instructions into result.txt in this directory.

exec
/bin/bash -lc 'printf %s ROOT > src/result.txt
 test "$(cat src/result.txt)" = ROOT && test "$(wc -c < src/result.txt)" -eq 4' in /tmp/harnessfacts-0kIvQd/fixture
 succeeded in 0ms:
codex
Created [src/result.txt](/tmp/harnessfacts-0kIvQd/fixture/src/result.txt) containing exactly `ROOT`, following your supplied repository instructions.
tokens used
4,330