What the agent did
Run blacken-docs --check on Markdown and reStructuredText files and get the documented nonzero exit with a rewrite-needed message; run the repo test suite
cd <guest-path> && pwd && ls -la && git status 2>&1 | head -3; id -u; python3 --version; cat README.md 2>/dev/null | head -150
curl -s -m 10 -i $CDP_URL/json/version; echo; echo EXIT=$?
cd <guest-path> && cat README.rst
cd <guest-path> && cat tox.ini pyproject.toml | head -120; ls .coldpass; ls tests src/*
mkdir -p <guest-path> && cd <guest-path> && (python3 -m venv <guest-path> 2>&1 || (sudo -n apt-get -o DPkg::Lock::Timeout=300 install -y python3-venv >/dev/null 2>&1 && python3 -m venv <guest-path>)); ls <guest-path> | head; <guest-path> --version
cd <guest-path> && <guest-path> -m pip install -q --upgrade pip 2>&1 | tail -3; <guest-path> -m pip install <guest-path> 2>&1 | tail -5; ls -la <guest-path>
mkdir -p <guest-path> && cd <guest-path> && printf '# Demo\n\n```python\ndef hello():\n print( "hello world" )\n```\n' > sample.md && cat sample.md && echo ---- && <guest-path> sample.md; echo EXIT=$?; echo ----; cat sample.md
cd <guest-path> && printf '# Demo\n\n```python\ndef hello():\n print( "hello world" )\n```\n' > check.md && <guest-path> --check check.md; echo EXIT=$?; cat check.md | head -3; printf 'Title\n=====\n\n.. code-block:: python\n\n def hello():\n print( "hello world" )\n' > sample.rst && <guest-path> sample.rst; echo EXIT=$?; cat sample.rst
cd <guest-path> && <guest-path> -m pip install -q "black>=22.1" "coverage[toml]" "pytest>=9" pytest-randomly 2>&1 | tail -3; <guest-path> -m pip list 2>/dev/null | grep -iE "pytest|black|coverage|blacken"
cd <guest-path> && <guest-path> --check README.rst; echo EXIT=$?
cd <guest-path> && PYTHONDONTWRITEBYTECODE=1 PYTHONDEVMODE=1 <guest-path> -W error::ResourceWarning -W error::DeprecationWarning -W error::PendingDeprecationWarning -m pytest -p no:cacheprovider tests 2>&1 | tail -15; echo EXIT=${PIPESTATUS[0]}
mkdir -p <guest-path> && cd <guest-path> && printf '# Demo\n\n```python\ndef hello():\n print( "hello world" )\n```\n' > check.md && printf 'Title\n=====\n\n.. code-block:: python\n\n def hello():\n print( "hello world" )\n' > check.rst && export PATH=<guest-path> && blacken-docs --check <guest-path>; echo EXIT=$?; blacken-docs --check <guest-path>; echo EXIT=$?; sha256sum check.md check.rst
cd <guest-path> && cat > probe.json <<'EOF'
{"kind":"cli","argv":["blacken-docs","--check","<guest-path>"],"cwd":"<guest-path>","env":{"PATH":"<guest-path>"},"expected_returncode":1,"expected_text":"Requires a rewrite."}
EOF
cat > claims.json <<'EOF'
[
{"kind":"claim","claim":"blacken-docs exits nonzero when a file would be modified","source":"If any file is modified, ``blacken-docs`` exits nonzero.","input":"<guest-path> with an unformatted python block","expected":"exit code 1 and a rewrite-needed message","probe_kind":"cli","argv":["blacken-docs","--check","<guest-path>"],"env":{"PATH":"<guest-path>"},"expected_returncode":1,"expected_text":"Requires a rewrite.","cwd":"<guest-path>"},
{"kind":"claim","claim":"blacken-docs supports reStructuredText files","source":"It supports Markdown, reStructuredText, and LaTex files.","input":"<guest-path> with an unformatted python code-block","expected":"rewrite-needed message for the rst file","probe_kind":"cli","argv":["blacken-docs","--check","<guest-path>"],"env":{"PATH":"<guest-path>"},"expected_returncode":1,"expected_text":"Requires a rewrite.","cwd":"<guest-path>"}
]
EOF
python3 -m json.tool probe.json >/dev/null && python3 -m json.tool claims.json >/dev/null && echo OK
cd <guest-path> && cat > examples.json <<'EOF'
[
{"kind":"example","claim":"Repository test suite passes (tox.ini testenv command, without coverage wrapper)","source":"tox.ini [testenv] commands","input":"tests/","expected":"all tests pass","argv":["<guest-path>","-W","error::ResourceWarning","-W","error::DeprecationWarning","-m","pytest","-p","no:cacheprovider","tests"],"cwd":"<guest-path>","env":{"PYTHONDONTWRITEBYTECODE":"1","PYTHONDEVMODE":"1"},"expected_text":"76 passed"},
{"kind":"example","claim":"Check a documentation file without rewriting it","source":"README.rst Usage section","input":"README.rst","expected":"exit 0, file already formatted","argv":["blacken-docs","--check","README.rst"],"cwd":"<guest-path>","env":{"PATH":"<guest-path>"}}
]
EOF
cat > cycles.json <<'EOF'
{"detected":false,"reason":"Inspected README.rst, pyproject.toml scripts entry (blacken_docs:main) and src/blacken_docs/__main__.py entry points: blacken-docs is a one-shot CLI that processes the filenames given and exits. No scheduler, cron, loop, webhook, daemon or --once/--now mode is documented or present.","checks":[]}
EOF
python3 -m json.tool examples.json >/dev/null && python3 -m json.tool cycles.json >/dev/null && echo OK; grep -n "def main\|__main__" <guest-path> | head
ls <guest-path> 2>&1; cd <guest-path> && <env-var>=<guest-path> python3 -I <guest-path> --validate --replay 2>&1 | tail -60; echo EXIT=${PIPESTATUS[0]}
cd <guest-path> && python3 - <<'EOF'
import json
p='claims.json'
d=json.load(open(p))
for c in d:
c['source_file']='README.rst'
json.dump(d,open(p,'w'),indent=1)
print('ok',len(d))
EOF
cd <guest-path> && <env-var>=<guest-path> python3 -I <guest-path> --validate --replay 2>&1 | tail -60; echo EXIT=${PIPESTATUS[0]}
cd <guest-path> && cat > report.json <<'EOF'
{"outcome":"working","fault_owner":null,"operation":"Run blacken-docs --check on Markdown and reStructuredText files and get the documented nonzero exit with a rewrite-needed message; run the repo test suite","operation_scope":"Local CLI from the source checkout installed into <guest-path> (Python 3.12.3, README supports 3.11-3.15). No browser, credentials or network service needed.","steps":["curl $CDP_URL/json/version returned HTTP 200 (browser not needed by this CLI)","python3 -m venv <guest-path> (Python 3.12.3)","<guest-path> -m pip install <guest-path> (installed blacken-docs 1.20.0 with black 26.10.1)","blacken-docs sample.md (in <guest-path>) rewrote the python block in place and exited 1, as documented","blacken-docs --check <guest-path> and check.rst: exit 1 with 'Requires a rewrite.'","blacken-docs --check README.rst on the repo README: exit 0","pytest tests with tox.ini warning flags: 76 passed"],"deviations":["Installed from the local source checkout with pip into a venv rather than from PyPI, so the tested code is the snapshot in <guest-path>","Snapshot is not a git checkout (no .git), so the pinned commit 8e7705218838da988c103d00ab6ecdd67dea7c37 could not be verified and no git fetch/reset was run.","tox was not used; the same pytest command was run directly with the tox warning flags and without the coverage wrapper, using -p no:cacheprovider so no cache files were written to the checkout.","Only Python 3.12 was tested; 3.11 and 3.13-3.15 were not run.","The checker default source file is README.md; the claims set source_file to README.rst because that is the repo README.","In-place rewrite was checked by hand on a scratch copy, not as a replayed claim, because a second replay would no longer find anything to rewrite."],"stuck_step":null,"main_blocker":null,"plain_failure":null,"suggested_fix":"None required; the tool works as documented."}
EOF
python3 -m json.tool report.json >/dev/null && echo REPORT_OK; cd <guest-path> && <env-var>=<guest-path> python3 -I <guest-path> --validate --replay 2>&1 | head -c 300; echo; echo EXIT=${PIPESTATUS[0]}; cd <guest-path> && ls -la && ls -la .coldpass