✨ feat: unify file-based inputs for comment edits and suggestions

README.md

@@ -141,7 +141,9 @@ gh-llm issue view 77924 --repo PaddlePaddle/Paddle --show meta,description
 ```bash
 # Edit comment
 gh-llm pr comment-edit IC_xxx --body '<new_body>' --pr 77900 --repo PaddlePaddle/Paddle
+gh-llm pr comment-edit IC_xxx --body-file edit.md --pr 77900 --repo PaddlePaddle/Paddle
 gh-llm issue comment-edit IC_xxx --body '<new_body>' --issue 77924 --repo PaddlePaddle/Paddle
+gh-llm issue comment-edit IC_xxx --body-file edit.md --issue 77924 --repo PaddlePaddle/Paddle
 
 # Reply / resolve / unresolve review thread
 gh-llm pr thread-reply PRRT_xxx --body '<reply>' --pr 77900 --repo PaddlePaddle/Paddle
@@ -231,6 +233,14 @@ gh-llm pr review-suggest \
   --body-file suggestion-reason.md \
   --suggestion 'replacement_code_here' \
   --pr 77938 --repo PaddlePaddle/Paddle
+
+gh-llm pr review-suggest \
+  --path 'path/to/file' \
+  --line 123 \
+  --side RIGHT \
+  --body-file suggestion-reason.md \
+  --suggestion-file replacement.txt \
+  --pr 77938 --repo PaddlePaddle/Paddle
 ```
 
 ### 4) Submit review
@@ -247,7 +257,9 @@ gh-llm pr review-submit \
   --pr 77938 --repo PaddlePaddle/Paddle
 ```
 
-`thread-reply`, `review-comment`, `review-suggest`, and `review-submit` all support `--body-file -` to read multi-line text from standard input.
+`pr comment-edit`, `issue comment-edit`, `thread-reply`, `review-comment`, `review-suggest`, and `review-submit` all support `--body-file -` to read multi-line text from standard input. `review-suggest` also supports `--suggestion-file -` for the suggestion block itself.
+
+> Note: `review-suggest --body-file - --suggestion-file -` is intentionally rejected because standard input can only be consumed once. Use separate files when both the reason text and suggestion block need external input.
 
 Submit behavior:
 

skills/github-conversation/SKILL.md

@@ -103,6 +103,9 @@ gh-llm issue timeline-expand <page> --issue <issue> --repo <owner/repo>
 ```bash
 gh pr comment <pr> --repo <owner/repo> --body '<comment>'
 gh issue comment <issue> --repo <owner/repo> --body '<comment>'
+gh-llm pr comment-edit <comment_id> --body-file edit.md --pr <pr> --repo <owner/repo>
+gh-llm issue comment-edit <comment_id> --body-file edit.md --issue <issue> --repo <owner/repo>
+cat edit.md | gh-llm issue comment-edit <comment_id> --body-file - --issue <issue> --repo <owner/repo>
 gh pr edit <pr> --repo <owner/repo> --add-label '<label1>,<label2>'
 gh pr edit <pr> --repo <owner/repo> --remove-label '<label1>,<label2>'
 gh pr edit <pr> --repo <owner/repo> --add-reviewer '<reviewer1>,<reviewer2>'
@@ -218,6 +221,14 @@ gh-llm pr review-suggest \
   --body '<why>' \
   --suggestion '<replacement>' \
   --pr <pr> --repo <owner/repo>
+
+gh-llm pr review-suggest \
+  --path 'path/to/file' \
+  --line <line> \
+  --side RIGHT \
+  --body-file reason.md \
+  --suggestion-file replacement.txt \
+  --pr <pr> --repo <owner/repo>
 ```
 
 Then submit one review:

src/gh_llm/commands/issue.py

@@ -3,7 +3,7 @@
 from dataclasses import dataclass
 from typing import TYPE_CHECKING, Any
 
-from gh_llm.commands.options import raise_unknown_option_value
+from gh_llm.commands.options import raise_unknown_option_value, resolve_file_or_inline_text
 from gh_llm.github_api import GitHubClient
 from gh_llm.pager import DEFAULT_PAGE_SIZE, TimelinePager
 from gh_llm.render import (
@@ -86,7 +86,13 @@ def register_issue_parser(subparsers: Any) -> None:
 
     comment_edit_parser = issue_subparsers.add_parser("comment-edit", help="edit one issue comment by node id")
     comment_edit_parser.add_argument("comment_id", help="comment id, e.g. IC_xxx")
-    comment_edit_parser.add_argument("--body", required=True, help="new comment body")
+    comment_edit_body_group = comment_edit_parser.add_mutually_exclusive_group(required=True)
+    comment_edit_body_group.add_argument("--body", help="new comment body")
+    comment_edit_body_group.add_argument(
+        "-F",
+        "--body-file",
+        help="read new comment body from file (use `-` to read from standard input)",
+    )
     comment_edit_parser.add_argument("--issue", help="Issue number/url")
     comment_edit_parser.add_argument("--repo", help="repository in OWNER/REPO format")
     comment_edit_parser.set_defaults(handler=cmd_issue_comment_edit)
@@ -230,7 +236,10 @@ def cmd_issue_comment_edit(args: Any) -> int:
         raise RuntimeError("`--issue` is required when `--repo` is provided")
     if args.issue is not None:
         client.resolve_issue(selector=args.issue, repo=args.repo)
-    updated_comment_id = client.edit_comment(comment_id=str(args.comment_id), body=str(args.body))
+    updated_comment_id = client.edit_comment(
+        comment_id=str(args.comment_id),
+        body=resolve_file_or_inline_text(args, text_attr="body", file_attr="body_file"),
+    )
     print(f"comment: {updated_comment_id}")
     print("status: edited")
     return 0

src/gh_llm/commands/options.py

@@ -1,7 +1,31 @@
 from __future__ import annotations
 
+import sys
 from difflib import get_close_matches
-from typing import NoReturn
+from pathlib import Path
+from typing import Any, NoReturn
+
+
+def read_text_from_path_or_stdin(path: str) -> str:
+    if path == "-":
+        return sys.stdin.read()
+    return Path(path).read_text(encoding="utf-8")
+
+
+def resolve_file_or_inline_text(
+    args: Any,
+    *,
+    text_attr: str,
+    file_attr: str,
+    default: str = "",
+) -> str:
+    file_path = getattr(args, file_attr, None)
+    if file_path is not None:
+        return read_text_from_path_or_stdin(str(file_path))
+    text = getattr(args, text_attr, None)
+    if text is None:
+        return default
+    return str(text)
 
 
 def raise_unknown_option_value(

src/gh_llm/commands/pr.py

@@ -4,13 +4,12 @@
 import os
 import re
 import shlex
-import sys
 import tempfile
 from dataclasses import dataclass
 from pathlib import Path
 from typing import TYPE_CHECKING, Any
 
-from gh_llm.commands.options import raise_unknown_option_value
+from gh_llm.commands.options import raise_unknown_option_value, resolve_file_or_inline_text
 from gh_llm.github_api import GitHubClient
 from gh_llm.invocation import display_command_with
 from gh_llm.models import PullRequestDiffPage
@@ -221,7 +220,13 @@ def register_pr_parser(subparsers: Any) -> None:
 
     comment_edit_parser = pr_subparsers.add_parser("comment-edit", help="edit one issue/review comment by node id")
     comment_edit_parser.add_argument("comment_id", help="comment id, e.g. IC_xxx or PRRC_xxx")
-    comment_edit_parser.add_argument("--body", required=True, help="new comment body")
+    comment_edit_body_group = comment_edit_parser.add_mutually_exclusive_group(required=True)
+    comment_edit_body_group.add_argument("--body", help="new comment body")
+    comment_edit_body_group.add_argument(
+        "-F",
+        "--body-file",
+        help="read new comment body from file (use `-` to read from standard input)",
+    )
     comment_edit_parser.add_argument("--pr", help="PR number/url/branch")
     comment_edit_parser.add_argument("--repo", help="repository in OWNER/REPO format")
     comment_edit_parser.set_defaults(handler=cmd_pr_comment_edit)
@@ -313,11 +318,15 @@ def register_pr_parser(subparsers: Any) -> None:
         "--body-file",
         help="read review comment body from file (use `-` to read from standard input)",
     )
-    review_suggest_parser.add_argument(
+    review_suggest_suggestion_group = review_suggest_parser.add_mutually_exclusive_group(required=True)
+    review_suggest_suggestion_group.add_argument(
         "--suggestion",
-        required=True,
         help="replacement content inserted inside ```suggestion block",
     )
+    review_suggest_suggestion_group.add_argument(
+        "--suggestion-file",
+        help="read replacement content from file (use `-` to read from standard input)",
+    )
     review_suggest_parser.add_argument("--head", help="expected PR head sha for stale-snapshot protection")
     review_suggest_parser.add_argument("--pr", help="PR number/url/branch")
     review_suggest_parser.add_argument("--repo", help="repository in OWNER/REPO format")
@@ -344,20 +353,19 @@ def register_pr_parser(subparsers: Any) -> None:
     review_submit_parser.set_defaults(handler=cmd_pr_review_submit)
 
 
-def _read_body_file(path: str) -> str:
-    if path == "-":
-        return sys.stdin.read()
-    return Path(path).read_text(encoding="utf-8")
+def _resolve_body_argument(args: Any, *, default: str = "") -> str:
+    return resolve_file_or_inline_text(args, text_attr="body", file_attr="body_file", default=default)
+
 
+def _resolve_suggestion_argument(args: Any) -> str:
+    return resolve_file_or_inline_text(args, text_attr="suggestion", file_attr="suggestion_file")
 
-def _resolve_body_argument(args: Any, *, default: str = "") -> str:
-    body_file = getattr(args, "body_file", None)
-    if body_file:
-        return _read_body_file(str(body_file))
-    body = getattr(args, "body", None)
-    if body is None:
-        return default
-    return str(body)
+
+def _validate_review_suggest_stdin_sources(args: Any) -> None:
+    if getattr(args, "body_file", None) == "-" and getattr(args, "suggestion_file", None) == "-":
+        raise RuntimeError(
+            "`--body-file -` cannot be combined with `--suggestion-file -`; standard input can only be consumed once"
+        )
 
 
 def _resolve_review_submit_body(args: Any) -> str:
@@ -746,7 +754,7 @@ def cmd_pr_comment_edit(args: Any) -> int:
         raise RuntimeError("`--pr` is required when `--repo` is provided")
     if args.pr is not None:
         client.resolve_pull_request(selector=args.pr, repo=args.repo)
-    updated_comment_id = client.edit_comment(comment_id=str(args.comment_id), body=str(args.body))
+    updated_comment_id = client.edit_comment(comment_id=str(args.comment_id), body=_resolve_body_argument(args))
     print(f"comment: {updated_comment_id}")
     print("status: edited")
     return 0
@@ -1082,6 +1090,7 @@ def cmd_pr_review_comment(args: Any) -> int:
 
 
 def cmd_pr_review_suggest(args: Any) -> int:
+    _validate_review_suggest_stdin_sources(args)
     client = GitHubClient()
     meta = _resolve_pr_meta(client=client, args=args)
     _validate_pr_head_snapshot(meta=meta, requested_head=_resolve_requested_head(args))
@@ -1096,7 +1105,7 @@ def cmd_pr_review_suggest(args: Any) -> int:
         start_line=start_line,
         start_side=start_side,
     )
-    suggestion = str(args.suggestion).rstrip("\n")
+    suggestion = _resolve_suggestion_argument(args).rstrip("\n")
     body = _resolve_body_argument(args, default="Suggested change")
     full_body = f"{body.rstrip()}\n\n```suggestion\n{suggestion}\n```"
     thread_id, comment_id = client.add_pull_request_review_thread_comment(