GPT-6.1 Sol (effort default (no reasoning-effort override) · thinking on) on Fix cache invalidation in an incremental static-site builder (transitive partials, config, deletions, same-second edits)

{"type": "thread.started", "thread_id": "01a1643a-da3e-71f0-b524-ccab89b158b9"}
{"type": "turn.started"}
{"type": "item.completed", "item": {"id": "item_0", "type": "agent_message", "text": "I\u2019ll inspect the builder and any tests, then update the cache logic and verify that changed outputs are repaired while unchanged pages keep their timestamps."}}
{"type": "item.started", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc \"pwd; rg --files -g 'AGENTS.md' -g '*minibuild*' -g '*test*' -g 'config.json' -g '*.md'\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc \"pwd; rg --files -g 'AGENTS.md' -g '*minibuild*' -g '*test*' -g 'config.json' -g '*.md'\"", "aggregated_output": "/home/bob/usecase-runs/batch/out/gpt-6.1-sol/174_f06/work\nminibuild.py\nTASK.md\nsite/src/index.md\nsite/src/blog.md\nsite/src/about.md\nsite/src/contact.md\nsite/config.json\nsite/partials/people.md\nsite/partials/team.md\nsite/partials/footer.md\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'cat minibuild.py; cat TASK.md; find site -type f -maxdepth 3 -print'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'cat minibuild.py; cat TASK.md; find site -type f -maxdepth 3 -print'", "aggregated_output": "\"\"\"Incremental static site builder.  python3 minibuild.py SITE_DIR\nsrc/*.md -> out/*.html. Pages may contain {{include NAME}} (partials/NAME.md, which may include other partials)\nand {{var KEY}} (from config.json). A cache (.cache.json) avoids rebuilding unchanged pages.\"\"\"\nimport os, sys, json, re, html\n\nINC = re.compile(r\"\\{\\{include ([\\w-]+)\\}\\}\")\nVAR = re.compile(r\"\\{\\{var ([\\w-]+)\\}\\}\")\n\ndef expand(site, text, seen=()):\n    def inc(m):\n        name = m.group(1)\n        if name in seen:\n            raise ValueError(f\"include cycle: {name}\")\n        return expand(site, open(os.path.join(site, \"partials\", name + \".md\")).read(), seen + (name,))\n    return INC.sub(inc, text)\n\ndef render(site, name, cfg):\n    text = expand(site, open(os.path.join(site, \"src\", name + \".md\")).read())\n    text = VAR.sub(lambda m: str(cfg.get(m.group(1), \"\")), text)\n    body = \"\\n\".join(f\"<h1>{html.escape(l[2:])}</h1>\" if l.startswith(\"# \") else f\"<p>{html.escape(l)}</p>\" for l in text.splitlines() if l.strip())\n    return f\"<!doctype html><title>{html.escape(cfg.get('site_title', ''))}</title>\\n{body}\\n\"\n\ndef build(site):\n    cfg = json.load(open(os.path.join(site, \"config.json\")))\n    cpath = os.path.join(site, \".cache.json\")\n    cache = json.load(open(cpath)) if os.path.exists(cpath) else {}\n    os.makedirs(os.path.join(site, \"out\"), exist_ok=True)\n    built = []\n    for fn in sorted(os.listdir(os.path.join(site, \"src\"))):\n        if not fn.endswith(\".md\"):\n            continue\n        name = fn[:-3]\n        mt = int(os.path.getmtime(os.path.join(site, \"src\", fn)))\n        if cache.get(name) == mt:\n            continue\n        open(os.path.join(site, \"out\", name + \".html\"), \"w\").write(render(site, name, cfg))\n        cache[name] = mt\n        built.append(name)\n    json.dump(cache, open(cpath, \"w\"))\n    return built\n\nif __name__ == \"__main__\":\n    for b in build(sys.argv[1]):\n        print(\"built\", b)\n# Task: fix the incremental builder's cache invalidation\n`minibuild.py` builds `site/out/*.html` from `site/src/*.md` and caches what it built in `site/.cache.json`. Users report stale pages: editing a partial (even one included indirectly) doesn't update pages, changing `config.json` doesn't either, quick successive edits within the same second are missed, deleted pages leave their HTML behind, and deleting or hand-editing an output file isn't repaired.\nFix the caching in `minibuild.py` so that after **any** sequence of changes, `python3 minibuild.py site` leaves `out/` exactly equal to a clean full build (same files, same bytes, no extra files), while still being incremental: a page is rewritten only if its output would change or its output file is missing/modified. Pages unaffected by a change must not be rewritten at all (the grader checks output file timestamps). Note: the grader resets the timestamps of all output files to an old value before each build, so detect missing/modified outputs by their content (e.g. a hash), not by their timestamps. Only config keys a page actually uses (`site_title` is used by every page; `{{var KEY}}` by the pages containing it, directly or through partials) should cause it to rebuild.\nKeep the rendering output and the command line unchanged; `build()` should still return the list of rebuilt page names. Standard library only. No network.\nsite/partials/footer.md\nsite/partials/team.md\nsite/partials/people.md\nsite/config.json\nsite/src/contact.md\nsite/src/about.md\nsite/src/blog.md\nsite/src/index.md\n", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_3", "type": "agent_message", "text": "The cache currently checks only source mtimes rounded to seconds. I\u2019ll use content fingerprints that include expanded partials and the config values each page uses, verify outputs by hash, and remove obsolete files. Before writing a page, I\u2019ll compare the rendered bytes so edits that leave the output unchanged preserve its timestamp."}}
{"type": "item.started", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\np='minibuild.py'\ns=open(p).read().replace('import os, sys, json, re, html','import os, sys, json, re, html, hashlib, shutil')\ns=s.replace('    text = VAR.sub(lambda m: str(cfg.get(m.group(1), \\\"\\\")), text)','    return _render(text, cfg)\\\\n\\\\ndef _render(text, cfg):\\\\n    text = VAR.sub(lambda m: str(cfg.get(m.group(1), \\\"\\\")), text)')\na=s.index('def build(site):')\nb=s.index('\\\\nif __name__',a)\ns=s[:a]+'''def _digest(data):\n    return hashlib.sha256(data).hexdigest()\n\ndef build(site):\n    cfg = json.load(open(os.path.join(site, \\\"config.json\\\")))\n    cpath = os.path.join(site, \\\".cache.json\\\")\n    try:\n        with open(cpath) as f:\n            saved = json.load(f)\n        cache = saved.get(\\\"pages\\\", {}) if saved.get(\\\"version\\\") == 1 else {}\n        if not isinstance(cache, dict):\n            cache = {}\n    except (OSError, ValueError, AttributeError):\n        cache = {}\n    out = os.path.join(site, \\\"out\\\")\n    os.makedirs(out, exist_ok=True)\n    built = []\n    updated = {}\n    expected = set()\n    for fn in sorted(os.listdir(os.path.join(site, \\\"src\\\"))):\n        if not fn.endswith(\\\".md\\\"):\n            continue\n        name = fn[:-3]\n        expected.add(name + \\\".html\\\")\n        with open(os.path.join(site, \\\"src\\\", fn)) as f:\n            text = expand(site, f.read())\n        # Expansion captures every transitive include. Only values used in this\n        # expanded page contribute to its signature, regardless of file mtimes.\n        keys = {m.group(1) for m in VAR.finditer(text)} | {\\\"site_title\\\"}\n        values = {key: cfg.get(key, \\\"\\\") for key in sorted(keys)}\n        signature = _digest(json.dumps([text, values], sort_keys=True).encode())\n        path = os.path.join(out, name + \\\".html\\\")\n        try:\n            with open(path, \\\"rb\\\") as f:\n                actual = f.read()\n        except (FileNotFoundError, IsADirectoryError):\n            actual = None\n        entry = cache.get(name)\n        if (isinstance(entry, dict) and entry.get(\\\"signature\\\") == signature\n                and actual is not None\n                and entry.get(\\\"output\\\") == _digest(actual)):\n            updated[name] = entry\n            continue\n        # An input change need not change the output (for example whitespace\n        # on an otherwise empty line). Preserve the output's timestamp then.\n        rendered = _render(text, cfg).encode()\n        if actual \"'!= rendered:\n            if os.path.isdir(path):\n                shutil.rmtree(path)\n            with open(path, \"wb\") as f:\n                f.write(rendered)\n            built.append(name)\n        updated[name] = {\"signature\": signature, \"output\": _digest(rendered)}\n    # out/ is owned by the builder, including files absent from the old cache.\n    for fn in os.listdir(out):\n        if fn not in expected:\n            path = os.path.join(out, fn)\n            if os.path.isdir(path) and not os.path.islink(path):\n                shutil.rmtree(path)\n            else:\n                os.unlink(path)\n    with open(cpath, \"w\") as f:\n        json.dump({\"version\": 1, \"pages\": updated}, f)\n    return built\n'\"''' +s[b:]\nopen(p,'w').write(s)\nPY\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\np='minibuild.py'\ns=open(p).read().replace('import os, sys, json, re, html','import os, sys, json, re, html, hashlib, shutil')\ns=s.replace('    text = VAR.sub(lambda m: str(cfg.get(m.group(1), \\\"\\\")), text)','    return _render(text, cfg)\\\\n\\\\ndef _render(text, cfg):\\\\n    text = VAR.sub(lambda m: str(cfg.get(m.group(1), \\\"\\\")), text)')\na=s.index('def build(site):')\nb=s.index('\\\\nif __name__',a)\ns=s[:a]+'''def _digest(data):\n    return hashlib.sha256(data).hexdigest()\n\ndef build(site):\n    cfg = json.load(open(os.path.join(site, \\\"config.json\\\")))\n    cpath = os.path.join(site, \\\".cache.json\\\")\n    try:\n        with open(cpath) as f:\n            saved = json.load(f)\n        cache = saved.get(\\\"pages\\\", {}) if saved.get(\\\"version\\\") == 1 else {}\n        if not isinstance(cache, dict):\n            cache = {}\n    except (OSError, ValueError, AttributeError):\n        cache = {}\n    out = os.path.join(site, \\\"out\\\")\n    os.makedirs(out, exist_ok=True)\n    built = []\n    updated = {}\n    expected = set()\n    for fn in sorted(os.listdir(os.path.join(site, \\\"src\\\"))):\n        if not fn.endswith(\\\".md\\\"):\n            continue\n        name = fn[:-3]\n        expected.add(name + \\\".html\\\")\n        with open(os.path.join(site, \\\"src\\\", fn)) as f:\n            text = expand(site, f.read())\n        # Expansion captures every transitive include. Only values used in this\n        # expanded page contribute to its signature, regardless of file mtimes.\n        keys = {m.group(1) for m in VAR.finditer(text)} | {\\\"site_title\\\"}\n        values = {key: cfg.get(key, \\\"\\\") for key in sorted(keys)}\n        signature = _digest(json.dumps([text, values], sort_keys=True).encode())\n        path = os.path.join(out, name + \\\".html\\\")\n        try:\n            with open(path, \\\"rb\\\") as f:\n                actual = f.read()\n        except (FileNotFoundError, IsADirectoryError):\n            actual = None\n        entry = cache.get(name)\n        if (isinstance(entry, dict) and entry.get(\\\"signature\\\") == signature\n                and actual is not None\n                and entry.get(\\\"output\\\") == _digest(actual)):\n            updated[name] = entry\n            continue\n        # An input change need not change the output (for example whitespace\n        # on an otherwise empty line). Preserve the output's timestamp then.\n        rendered = _render(text, cfg).encode()\n        if actual \"'!= rendered:\n            if os.path.isdir(path):\n                shutil.rmtree(path)\n            with open(path, \"wb\") as f:\n                f.write(rendered)\n            built.append(name)\n        updated[name] = {\"signature\": signature, \"output\": _digest(rendered)}\n    # out/ is owned by the builder, including files absent from the old cache.\n    for fn in os.listdir(out):\n        if fn not in expected:\n            path = os.path.join(out, fn)\n            if os.path.isdir(path) and not os.path.islink(path):\n                shutil.rmtree(path)\n            else:\n                os.unlink(path)\n    with open(cpath, \"w\") as f:\n        json.dump({\"version\": 1, \"pages\": updated}, f)\n    return built\n'\"''' +s[b:]\nopen(p,'w').write(s)\nPY\"", "aggregated_output": "", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_5", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\np='minibuild.py'\ns=open(p).read().replace('values = {key: cfg.get(key, \\\"\\\") for key in sorted(keys)}','values = {key: str(cfg.get(key, \\\"\\\")) for key in sorted(keys)}')\nopen(p,'w').write(s)\nPY\ncat > test_minibuild.py <<'PY'\nimport json\nimport os\nfrom pathlib import Path\nimport tempfile\nimport unittest\n\nfrom minibuild import build, render\n\n\nclass BuildTests(unittest.TestCase):\n    def test_change_sequences(self):\n        with tempfile.TemporaryDirectory() as tmp:\n            site = Path(tmp)\n            for directory in ('src', 'partials', 'out'):\n                (site / directory).mkdir()\n            cfg = {'site_title': 'Title', 'who': 'Ada', 'unused': 1}\n            def config():\n                (site / 'config.json').write_text(json.dumps(cfg))\n            def write(path, text):\n                (site / path).write_text(text)\n                os.utime(site / path, (100, 100))\n            def check(expected):\n                for path in (site / 'out').glob('*.html'):\n                    os.utime(path, (100, 100))\n                self.assertEqual(build(site), expected)\n                names = sorted(p.stem for p in (site / 'src').glob('*.md'))\n                self.assertEqual(sorted(p.name for p in (site / 'out').iterdir()),\n                                 [n + '.html' for n in names])\n                for name in names:\n                    path = site / 'out' / (name + '.html')\n                    self.assertEqual(path.read_bytes(), render(site, name, cfg).encode())\n                    if name not in expected:\n                        self.assertEqual(path.stat().st_mtime_ns, 100_000_000_000)\n            config()\n            write('src/a.md', '# A\\\\n{{include outer}}')\n            write('src/b.md', '# B')\n            write('partials/outer.md', '{{include inner}}')\n            write('partials/inner.md', 'Hello {{var who}}')\n            check(['a', 'b'])\n            check([])\n            write('partials/inner.md', 'Hi {{var who}}')\n            check(['a'])\n            cfg['unused'] = 2\n            config()\n            check([])\n            cfg['who'] = 'Bob'\n            config()\n            check(['a'])\n            cfg['site_title'] = 'New'\n            config()\n            check(['a', 'b'])\n            write('src/b.md', '# B\\\\n   \\\\n')\n            check([])\n            write('src/b.md', '# Changed')\n            check(['b'])\n            (site / 'out/a.html').unlink()\n            check(['a'])\n            write('out/b.html', 'tampered')\n            check(['b'])\n            (site / 'src/a.md').unlink()\n            write('out/extra.txt', 'obsolete')\n            (site / 'out/extra-directory').mkdir()\n            check([])\n            (site / '.cache.json').write_text('{bad')\n            check([])\n            (site / '.cache.json').write_text('{\\\"b\\\": 100}')\n            check([])\n\n\nif __name__ == '__main__':\n    unittest.main()\nPY\npython3 -m unittest -v\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_5", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\np='minibuild.py'\ns=open(p).read().replace('values = {key: cfg.get(key, \\\"\\\") for key in sorted(keys)}','values = {key: str(cfg.get(key, \\\"\\\")) for key in sorted(keys)}')\nopen(p,'w').write(s)\nPY\ncat > test_minibuild.py <<'PY'\nimport json\nimport os\nfrom pathlib import Path\nimport tempfile\nimport unittest\n\nfrom minibuild import build, render\n\n\nclass BuildTests(unittest.TestCase):\n    def test_change_sequences(self):\n        with tempfile.TemporaryDirectory() as tmp:\n            site = Path(tmp)\n            for directory in ('src', 'partials', 'out'):\n                (site / directory).mkdir()\n            cfg = {'site_title': 'Title', 'who': 'Ada', 'unused': 1}\n            def config():\n                (site / 'config.json').write_text(json.dumps(cfg))\n            def write(path, text):\n                (site / path).write_text(text)\n                os.utime(site / path, (100, 100))\n            def check(expected):\n                for path in (site / 'out').glob('*.html'):\n                    os.utime(path, (100, 100))\n                self.assertEqual(build(site), expected)\n                names = sorted(p.stem for p in (site / 'src').glob('*.md'))\n                self.assertEqual(sorted(p.name for p in (site / 'out').iterdir()),\n                                 [n + '.html' for n in names])\n                for name in names:\n                    path = site / 'out' / (name + '.html')\n                    self.assertEqual(path.read_bytes(), render(site, name, cfg).encode())\n                    if name not in expected:\n                        self.assertEqual(path.stat().st_mtime_ns, 100_000_000_000)\n            config()\n            write('src/a.md', '# A\\\\n{{include outer}}')\n            write('src/b.md', '# B')\n            write('partials/outer.md', '{{include inner}}')\n            write('partials/inner.md', 'Hello {{var who}}')\n            check(['a', 'b'])\n            check([])\n            write('partials/inner.md', 'Hi {{var who}}')\n            check(['a'])\n            cfg['unused'] = 2\n            config()\n            check([])\n            cfg['who'] = 'Bob'\n            config()\n            check(['a'])\n            cfg['site_title'] = 'New'\n            config()\n            check(['a', 'b'])\n            write('src/b.md', '# B\\\\n   \\\\n')\n            check([])\n            write('src/b.md', '# Changed')\n            check(['b'])\n            (site / 'out/a.html').unlink()\n            check(['a'])\n            write('out/b.html', 'tampered')\n            check(['b'])\n            (site / 'src/a.md').unlink()\n            write('out/extra.txt', 'obsolete')\n            (site / 'out/extra-directory').mkdir()\n            check([])\n            (site / '.cache.json').write_text('{bad')\n            check([])\n            (site / '.cache.json').write_text('{\\\"b\\\": 100}')\n            check([])\n\n\nif __name__ == '__main__':\n    unittest.main()\nPY\npython3 -m unittest -v\"", "aggregated_output": "test_change_sequences (test_minibuild.BuildTests.test_change_sequences) ... /home/bob/usecase-runs/batch/out/gpt-6.1-sol/174_f06/work/minibuild.py:30: ResourceWarning: unclosed file <_io.TextIOWrapper name='/tmp/tmpzxkoimae/config.json' mode='r' encoding='UTF-8'>\n  cfg = json.load(open(os.path.join(site, \"config.json\")))\nResourceWarning: Enable tracemalloc to get the object allocation traceback\n/home/bob/usecase-runs/batch/out/gpt-6.1-sol/174_f06/work/minibuild.py:14: ResourceWarning: unclosed file <_io.TextIOWrapper name='/tmp/tmpzxkoimae/partials/outer.md' mode='r' encoding='UTF-8'>\n  return expand(site, open(os.path.join(site, \"partials\", name + \".md\")).read(), seen + (name,))\nResourceWarning: Enable tracemalloc to get the object allocation traceback\n/home/bob/usecase-runs/batch/out/gpt-6.1-sol/174_f06/work/minibuild.py:14: ResourceWarning: unclosed file <_io.TextIOWrapper name='/tmp/tmpzxkoimae/partials/inner.md' mode='r' encoding='UTF-8'>\n  return expand(site, open(os.path.join(site, \"partials\", name + \".md\")).read(), seen + (name,))\nResourceWarning: Enable tracemalloc to get the object allocation traceback\n/home/bob/usecase-runs/batch/out/gpt-6.1-sol/174_f06/work/minibuild.py:18: ResourceWarning: unclosed file <_io.TextIOWrapper name='/tmp/tmpzxkoimae/src/a.md' mode='r' encoding='UTF-8'>\n  text = expand(site, open(os.path.join(site, \"src\", name + \".md\")).read())\nResourceWarning: Enable tracemalloc to get the object allocation traceback\n/home/bob/usecase-runs/batch/out/gpt-6.1-sol/174_f06/work/minibuild.py:18: ResourceWarning: unclosed file <_io.TextIOWrapper name='/tmp/tmpzxkoimae/src/b.md' mode='r' encoding='UTF-8'>\n  text = expand(site, open(os.path.join(site, \"src\", name + \".md\")).read())\nResourceWarning: Enable tracemalloc to get the object allocation traceback\nok\n\n----------------------------------------------------------------------\nRan 1 test in 0.013s\n\nOK\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\np='minibuild.py'\ns=open(p).read().replace('        return expand(site, open(os.path.join(site, \\\"partials\\\", name + \\\".md\\\")).read(), seen + (name,))','        with open(os.path.join(site, \\\"partials\\\", name + \\\".md\\\")) as f:\\\\n            return expand(site, f.read(), seen + (name,))').replace('    text = expand(site, open(os.path.join(site, \\\"src\\\", name + \\\".md\\\")).read())','    with open(os.path.join(site, \\\"src\\\", name + \\\".md\\\")) as f:\\\\n        text = expand(site, f.read())').replace('    cfg = json.load(open(os.path.join(site, \\\"config.json\\\")))','    with open(os.path.join(site, \\\"config.json\\\")) as f:\\\\n        cfg = json.load(f)')\nopen(p,'w').write(s)\nPY\npython3 -m unittest -v\n git diff --stat\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\np='minibuild.py'\ns=open(p).read().replace('        return expand(site, open(os.path.join(site, \\\"partials\\\", name + \\\".md\\\")).read(), seen + (name,))','        with open(os.path.join(site, \\\"partials\\\", name + \\\".md\\\")) as f:\\\\n            return expand(site, f.read(), seen + (name,))').replace('    text = expand(site, open(os.path.join(site, \\\"src\\\", name + \\\".md\\\")).read())','    with open(os.path.join(site, \\\"src\\\", name + \\\".md\\\")) as f:\\\\n        text = expand(site, f.read())').replace('    cfg = json.load(open(os.path.join(site, \\\"config.json\\\")))','    with open(os.path.join(site, \\\"config.json\\\")) as f:\\\\n        cfg = json.load(f)')\nopen(p,'w').write(s)\nPY\npython3 -m unittest -v\n git diff --stat\"", "aggregated_output": "test_change_sequences (test_minibuild.BuildTests.test_change_sequences) ... ok\n\n----------------------------------------------------------------------\nRan 1 test in 0.009s\n\nOK\nwarning: Not a git repository. Use --no-index to compare two paths outside a working tree\nusage: git diff --no-index [<options>] <path> <path> [<pathspec>...]\n\nDiff output format options\n    -p, --patch           generate patch\n    -s, --no-patch        suppress diff output\n    -u                    generate patch\n    -U, --unified[=<n>]   generate diffs with <n> lines context\n    -W, --[no-]function-context\n                          generate diffs with <n> lines context\n    --raw                 generate the diff in raw format\n    --patch-with-raw      synonym for '-p --raw'\n    --patch-with-stat     synonym for '-p --stat'\n    --numstat             machine friendly --stat\n    --shortstat           output only the last line of --stat\n    -X, --dirstat[=<param1>,<param2>...]\n                          output the distribution of relative amount of changes for each sub-directory\n    --cumulative          synonym for --dirstat=cumulative\n    --dirstat-by-file[=<param1>,<param2>...]\n                          synonym for --dirstat=files,<param1>,<param2>...\n    --check               warn if changes introduce conflict markers or whitespace errors\n    --summary             condensed summary such as creations, renames and mode changes\n    --name-only           show only names of changed files\n    --name-status         show only names and status of changed files\n    --stat[=<width>[,<name-width>[,<count>]]]\n                          generate diffstat\n    --stat-width <width>  generate diffstat with a given width\n    --stat-name-width <width>\n                          generate diffstat with a given name width\n    --stat-graph-width <width>\n                          generate diffstat with a given graph width\n    --stat-count <count>  generate diffstat with limited lines\n    --[no-]compact-summary\n                          generate compact summary in diffstat\n    --binary              output a binary diff that can be applied\n    --[no-]full-index     show full pre- and post-image object names on the \"index\" lines\n    --[no-]color[=<when>] show colored diff\n    --ws-error-highlight <kind>\n                          highlight whitespace errors in the 'context', 'old' or 'new' lines in the diff\n    -z                    do not munge pathnames and use NULs as output field terminators in --raw or --numstat\n    --[no-]abbrev[=<n>]   use <n> digits to display object names\n    --src-prefix <prefix> show the given source prefix instead of \"a/\"\n    --dst-prefix <prefix> show the given destination prefix instead of \"b/\"\n    --line-prefix <prefix>\n                          prepend an additional prefix to every line of output\n    --no-prefix           do not show any source or destination prefix\n    --default-prefix      use default prefixes a/ and b/\n    --inter-hunk-context <n>\n                          show context between diff hunks up to the specified number of lines\n    --output-indicator-new <char>\n                          specify the character to indicate a new line instead of '+'\n    --output-indicator-old <char>\n                          specify the character to indicate an old line instead of '-'\n    --output-indicator-context <char>\n                          specify the character to indicate a context instead of ' '\n\nDiff rename options\n    -B, --break-rewrites[=<n>[/<m>]]\n                          break complete rewrite changes into pairs of delete and create\n    -M, --find-renames[=<n>]\n                          detect renames\n    -D, --irreversible-delete\n                          omit the preimage for deletes\n    -C, --find-copies[=<n>]\n                          detect copies\n    --[no-]find-copies-harder\n                          use unmodified files as source to find copies\n    --no-renames          disable rename detection\n    --[no-]rename-empty   use empty blobs as rename source\n    --[no-]follow         continue listing the history of a file beyond renames\n    -l <n>                prevent rename/copy detection if the number of rename/copy targets exceeds given limit\n\nDiff algorithm options\n    --minimal             produce the smallest possible diff\n    -w, --ignore-all-space\n                          ignore whitespace when comparing lines\n    -b, --ignore-space-change\n                          ignore changes in amount of whitespace\n    --ignore-space-at-eol ignore changes in whitespace at EOL\n    --ignore-cr-at-eol    ignore carrier-return at the end of line\n    --ignore-blank-lines  ignore changes whose lines are all blank\n    -I, --[no-]ignore-matching-lines <regex>\n                          ignore changes whose all lines match <regex>\n    --[no-]indent-heuristic\n                          heuristic to shift diff hunk boundaries for easy reading\n    --patience            generate diff using the \"patience diff\" algorithm\n    --histogram           generate diff using the \"histogram diff\" algorithm\n    --diff-algorithm <algorithm>\n                          choose a diff algorithm\n    --anchored <text>     generate diff using the \"anchored diff\" algorithm\n    --word-diff[=<mode>]  show word diff, using <mode> to delimit changed words\n    --word-diff-regex <regex>\n                          use <regex> to decide what a word is\n    --color-words[=<regex>]\n                          equivalent to --word-diff=color --word-diff-regex=<regex>\n    --[no-]color-moved[=<mode>]\n                          moved lines of code are colored differently\n    --[no-]color-moved-ws <mode>\n                          how white spaces are ignored in --color-moved\n\nOther diff options\n    --[no-]relative[=<prefix>]\n                          when run from subdir, exclude changes outside and show relative paths\n    -a, --[no-]text       treat all files as text\n    -R                    swap two inputs, reverse the diff\n    --[no-]exit-code      exit with 1 if there were differences, 0 otherwise\n    --[no-]quiet          disable all output of the program\n    --[no-]ext-diff       allow an external diff helper to be executed\n    --[no-]textconv       run external text conversion filters when comparing binary files\n    --ignore-submodules[=<when>]\n                          ignore changes to submodules in the diff generation\n    --submodule[=<format>]\n                          specify how differences in submodules are shown\n    --ita-invisible-in-index\n                          hide 'git add -N' entries from the index\n    --ita-visible-in-index\n                          treat 'git add -N' entries as real in the index\n    -S <string>           look for differences that change the number of occurrences of the specified string\n    -G <regex>            look for differences that change the number of occurrences of the specified regex\n    --pickaxe-all         show all changes in the changeset with -S or -G\n    --pickaxe-regex       treat <string> in -S as extended POSIX regular expression\n    -O <file>             control the order in which files appear in the output\n    --rotate-to <path>    show the change in the specified path first\n    --skip-to <path>      skip the output to the specified path\n    --find-object <object-id>\n                          look for differences that change the number of occurrences of the specified object\n    --diff-filter [(A|C|D|M|R|T|U|X|B)...[*]]\n                          select files by diff type\n    --output <file>       output to a specific file\n\n", "exit_code": 129, "status": "failed"}}
{"type": "item.completed", "item": {"id": "item_7", "type": "agent_message", "text": "Fixed `minibuild.py` to track expanded partial content and only config values each page uses, verify outputs by content hash, repair missing or modified outputs, and remove obsolete files. Unchanged output bytes preserve timestamps.\n\nRendering, CLI behavior, and `build()`\u2019s return value remain unchanged.\n\nAdded regression coverage; `python3 -m unittest -v` passes."}}
{"type": "turn.completed", "usage": {"input_tokens": 103588, "cached_input_tokens": 87936, "cache_write_input_tokens": 0, "output_tokens": 2654, "reasoning_output_tokens": 411}}