Reading additional input from stdin...
OpenAI Codex v0.153.4
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workdir: /tmp/harnessfacts-AAokV1/fixture
model: gpt-6-astra
provider: openai
approval: never
sandbox: workspace-write [workdir, /tmp, $TMPDIR]
reasoning effort: none
reasoning summaries: none
session id: 01a0803f-ef36-7363-a160-01871b743315
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user
Read task.txt and follow the applicable repository instructions. Write the requested token to result.txt.
codex
I’ll read the task and repository instructions, then write the token to `result.txt`.

exec
/bin/bash -lc "pwd && rg --files -g 'AGENTS.md' -g 'task.txt' -g 'result.txt' -g '"'! .git'"'" in /tmp/harnessfacts-AAokV1/fixture
 succeeded in 0ms:
/tmp/harnessfacts-AAokV1/fixture
AGENTS.md
task.txt

exec
/bin/bash -lc 'cat AGENTS.md task.txt' in /tmp/harnessfacts-AAokV1/fixture
 succeeded in 0ms:
Write exactly ROOT into result.txt for the task in this repository.
Read task.txt and follow the applicable repository instructions. Write the requested token to result.txt.

exec
/bin/bash -lc 'printf ROOT > result.txt && test "$(cat result.txt)" = ROOT && test "$(wc -c < result.txt)" -eq 4' in /tmp/harnessfacts-AAokV1/fixture
 succeeded in 0ms:
codex
Wrote exactly `ROOT` to `result.txt`, with no trailing newline.
tokens used
15,680