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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughPull request は Changes
Sequence Diagram(s)sequenceDiagram
participant PR as Pull Request
participant GHA as GitHub Actions
participant Py as Visualization Script
participant Repo as Repository CSVs
participant API as GitHub API
PR->>GHA: Trigger on data/*.csv change
GHA->>GHA: Checkout repo & fetch base (full history)
GHA->>GHA: Setup Python 3.12
GHA->>Py: Run script with BASE_REF env
Py->>Repo: Load stations/types/lines CSVs
Py->>Repo: Compute git diff for data/*.csv
Py->>Py: Parse diffs, classify groups (new/changed/deleted), build Markdown
Py-->>GHA: Emit has_changes + /tmp/visualization_comment.md
GHA->>API: Find existing comment with marker <!-- station-visualizer -->
alt has_changes == true
GHA->>API: Post or Update PR comment with generated Markdown
else has_changes == false
GHA->>API: Delete existing comment (if any)
end
API-->>PR: Comment posted/updated/deleted
Estimated code review effort🎯 4 (Complex) | ⏱️ ~45 minutes Poem
🚥 Pre-merge checks | ✅ 3✅ Passed checks (3 passed)
✏️ Tip: You can configure your own custom pre-merge checks in the settings. ✨ Finishing Touches
🧪 Generate unit tests (beta)
Comment |
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Actionable comments posted: 3
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In @.github/scripts/visualize_stopping_patterns.py:
- Line 270: Remove the unnecessary f-string prefix on the lines.append call that
produces "<details>" (e.g., the lines.append(f"<details>") usage) because there
are no placeholders and it triggers Ruff F541; change it to
lines.append("<details>") wherever that exact f-prefixed string occurs in
visualize_stopping_patterns.py.
- Around line 37-43: The git_diff function currently ignores subprocess.run's
return value; update git_diff to check result.returncode after the
subprocess.run call (for the ["git", "diff", f"{base_ref}...HEAD", "--",
file_path] invocation) and treat non-zero as failure: emit the stderr
(result.stderr) to the console or process logger and abort (raise an exception
or call sys.exit(1)) so a failing git diff isn't silently treated as an empty
diff.
In @.github/workflows/visualize_stopping_patterns.yml:
- Around line 9-11: Update the workflow permissions block so actions/checkout@v4
can run and PR comment actions succeed: add contents: read alongside the
existing pull-requests: write in the permissions mapping, and if the workflow
uses gh api to delete or modify issue/PR comments also include issues: write;
locate the permissions block (symbol "permissions") in the workflow file and
ensure it contains at minimum "contents: read" and "pull-requests: write" (and
add "issues: write" when using peter-evans/create-or-update-comment or gh api
comment deletion).
- git diffの戻り値チェックを追加しエラー時に中断するように変更 - 不要なf-stringプレフィックスを削除 - ワークフローのpermissionsにcontents: readとissues: writeを追加 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Contributor
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Actionable comments posted: 1
🧹 Nitpick comments (2)
.github/scripts/visualize_stopping_patterns.py (2)
55-57:zip()にstrict=パラメータの追加を検討してくださいLine 55-56 で
len(row) < len(header)のチェックはありますが、len(row) > len(header)の場合は余分なカラムが暗黙的に無視されます。意図的な動作であれば問題ありませんが、明示的にstrict=Falseを指定することで意図を明確にできます。♻️ 修正案
if len(row) < len(header): return None - return dict(zip(header, row)) + return dict(zip(header, row, strict=False))🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In @.github/scripts/visualize_stopping_patterns.py around lines 55 - 57, The current mapping uses dict(zip(header, row)) after checking only if len(row) < len(header), which silently ignores extra columns when len(row) > len(header); update the dict creation to be explicit by calling zip(header, row, strict=False) (i.e., replace dict(zip(header, row)) with dict(zip(header, row, strict=False)) or an equivalent explicit handling) so the intent to allow unequal lengths is clear; keep the existing len(row) < len(header) guard and add a short comment near header/row to document why strict=False is used.
427-429:tempfileモジュールの使用を検討してください
/tmp/visualization_comment.mdのハードコードパスは CI 環境では問題ありませんが、tempfileモジュールを使用するとより安全です。♻️ 修正案
+import tempfile + ... - output_path = "/tmp/visualization_comment.md" - with open(output_path, "w", encoding="utf-8") as f: - f.write(comment) + with tempfile.NamedTemporaryFile( + mode="w", + suffix="_visualization_comment.md", + delete=False, + encoding="utf-8", + ) as f: + f.write(comment) + output_path = f.name注意: この変更を行う場合、ワークフロー側でパスを動的に受け取る必要があります（
set_outputで出力パスを渡すなど）。🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In @.github/scripts/visualize_stopping_patterns.py around lines 427 - 429, The code hardcodes output_path = "/tmp/visualization_comment.md" and writes comment to it; replace this with a tempfile-backed path using the tempfile module (e.g., tempfile.NamedTemporaryFile or tempfile.TemporaryDirectory) to create a safe, unique file and write the comment there, ensuring you set delete=False if the path must persist after closing; update any caller or workflow that expects the static path to accept the generated temp path (for example by returning or printing the path or using set_output) so consumers can locate the file instead of relying on the hardcoded output_path variable.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In @.github/scripts/visualize_stopping_patterns.py:
- Around line 421-424: The current truncation trims the raw string (variable
comment) at a character boundary which can break Markdown/HTML (e.g., cutting
inside <details> or table rows); instead, build the comment by appending whole
sections and stop when the next section would exceed MAX_COMMENT_LENGTH, then
append truncation_msg; specifically, replace the direct slice logic that uses
comment[: MAX_COMMENT_LENGTH - len(truncation_msg)] with a loop that iterates
group_sections (or whatever list produces each section), keeps a running
current_length (starting from len("\n".join(parts)) or 0), checks if
current_length + len(section) + len(truncation_msg) > MAX_COMMENT_LENGTH, and if
so appends truncation_msg and breaks, otherwise appends the section to parts and
updates current_length — finally join parts to form comment so no tag/row is cut
mid-section.
---
Nitpick comments:
In @.github/scripts/visualize_stopping_patterns.py:
- Around line 55-57: The current mapping uses dict(zip(header, row)) after
checking only if len(row) < len(header), which silently ignores extra columns
when len(row) > len(header); update the dict creation to be explicit by calling
zip(header, row, strict=False) (i.e., replace dict(zip(header, row)) with
dict(zip(header, row, strict=False)) or an equivalent explicit handling) so the
intent to allow unequal lengths is clear; keep the existing len(row) <
len(header) guard and add a short comment near header/row to document why
strict=False is used.
- Around line 427-429: The code hardcodes output_path =
"/tmp/visualization_comment.md" and writes comment to it; replace this with a
tempfile-backed path using the tempfile module (e.g.,
tempfile.NamedTemporaryFile or tempfile.TemporaryDirectory) to create a safe,
unique file and write the comment there, ensuring you set delete=False if the
path must persist after closing; update any caller or workflow that expects the
static path to accept the generated temp path (for example by returning or
printing the path or using set_output) so consumers can locate the file instead
of relying on the hardcoded output_path variable.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Contributor
There was a problem hiding this comment.
Actionable comments posted: 1
🧹 Nitpick comments (2)
.github/scripts/visualize_stopping_patterns.py (2)
431-433:/tmpの直接使用についてRuff S108 が
/tmpの直接使用を警告しています。GitHub Actions ランナーは一時的な環境なので実害はありませんが、より堅牢にするにはtempfileモジュールの使用を検討できます。ただし、ワークフローが固定パスを期待している場合は現状のままで問題ありません。♻️ 代替案（必要に応じて）
import tempfile # ... output_path = os.path.join(tempfile.gettempdir(), "visualization_comment.md")または、ワークフロー側で
GITHUB_WORKSPACE配下の一時ディレクトリを使用することも検討できます。🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In @.github/scripts/visualize_stopping_patterns.py around lines 431 - 433, The code writes to a hardcoded "/tmp" path via the variable output_path in visualize_stopping_patterns.py; replace this direct /tmp usage with the tempfile module (e.g., use tempfile.gettempdir() or a NamedTemporaryFile) to compute a safe temporary file location and then open/write to that path; update the output_path assignment and any consumers of output_path (the open(...).write(comment) usage) accordingly so the workflow can still find the file if required.
49-58:zip()にstrict=パラメータを明示的に指定することを検討してくださいLine 57 の
zip(header, row)はstrict=パラメータが省略されています。Line 55-56 で長さチェックを行っているため実害はありませんが、Ruff B905 の警告を解消し、意図を明確にするためにstrict=Falseを追加することをお勧めします。♻️ 修正案
- return dict(zip(header, row)) + return dict(zip(header, row, strict=False))🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In @.github/scripts/visualize_stopping_patterns.py around lines 49 - 58, In parse_csv_line, make the use of zip explicit by adding the strict parameter: replace the call to zip(header, row) in the parse_csv_line function with zip(header, row, strict=False) so Ruff B905 is silenced and the intent (allow differing lengths despite the preceding length check) is clear; update only the zip invocation in parse_csv_line.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In @.github/scripts/visualize_stopping_patterns.py:
- Around line 418-426: Remove the unused variable assignment for truncated in
the loop; the code in the loop that sets truncated = True (referencing variable
truncated) should be deleted because the flag is never read later. Locate the
for loop iterating over group_sections and remove the truncated variable
declaration and the assignment (the initial truncated = False and the truncated
= True inside the if), leaving the current logic that appends truncation_msg to
parts and breaks out when current_length + section_length + len(truncation_msg)
> MAX_COMMENT_LENGTH; ensure group_sections, parts, current_length,
truncation_msg and MAX_COMMENT_LENGTH usage remains unchanged.
---
Nitpick comments:
In @.github/scripts/visualize_stopping_patterns.py:
- Around line 431-433: The code writes to a hardcoded "/tmp" path via the
variable output_path in visualize_stopping_patterns.py; replace this direct /tmp
usage with the tempfile module (e.g., use tempfile.gettempdir() or a
NamedTemporaryFile) to compute a safe temporary file location and then
open/write to that path; update the output_path assignment and any consumers of
output_path (the open(...).write(comment) usage) accordingly so the workflow can
still find the file if required.
- Around line 49-58: In parse_csv_line, make the use of zip explicit by adding
the strict parameter: replace the call to zip(header, row) in the parse_csv_line
function with zip(header, row, strict=False) so Ruff B905 is silenced and the
intent (allow differing lengths despite the preceding length check) is clear;
update only the zip invocation in parse_csv_line.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Contributor
There was a problem hiding this comment.
Actionable comments posted: 2
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In @.github/scripts/visualize_stopping_patterns.py:
- Around line 55-57: The current row-to-dict mapping quietly truncates extra CSV
columns by using dict(zip(header, row)); change it to require exact column count
and use zip(..., strict=True) so mismatched lengths raise a ValueError: check
that len(row) == len(header) before zipping (or call dict(zip(header, row,
strict=True)) inside a try/except), and on mismatch return None or log/raise as
appropriate; update the code that references header and row in the mapping block
to use this strict check.
- Around line 428-431: The script currently hardcodes output_path =
"/tmp/visualization_comment.md" which triggers Ruff S108 and allows predictable
symlink attacks; change the script to create a secure temporary file using the
tempfile module (e.g., tempfile.NamedTemporaryFile(delete=False) or
tempfile.mkstemp) and write comment to that dynamic path, exposing the final
path via stdout or an environment/exit file so callers can consume it; update
any callers (notably the workflow's body-path reference) to read the produced
path from the script output or an environment variable instead of using the
fixed /tmp path.
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Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com
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