Extract and analyze writing improvements from GitHub PR review comments. Use when asked to show review feedback, style changes, or editorial improvements from a GitHub pull request URL. Handles both explicit suggestions and plain text feedback. Produces structured output comparing original phrasing with reviewer suggestions to help refine future writing.
Installation
Details
Usage
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skills listSkill Instructions
name: pr-writing-review description: Extract and analyze writing improvements from GitHub PR review comments. Use when asked to show review feedback, style changes, or editorial improvements from a GitHub pull request URL. Handles both explicit suggestions and plain text feedback. Produces structured output comparing original phrasing with reviewer suggestions to help refine future writing.
PR Writing Review
Extract editorial feedback from GitHub PRs to learn from review improvements.
Prerequisites
- GitHub CLI:
ghinstalled - Authenticated
ghsession:gh auth statusshould show you’re logged in- For private repos, your token needs appropriate scopes (typically
repo).
- For private repos, your token needs appropriate scopes (typically
- Python: 3.12+
- uv (recommended): https://github.com/astral-sh/uv
Division of Labor
| Tool | Responsibility |
|---|---|
| Python script | API calls, parsing, file tracking across renames, structured extraction |
| LLM analysis | Pattern recognition, paragraph comparison, style lesson synthesis |
Quick Start
> **All paths are relative to the directory containing this SKILL.md file.**
> Before running any script, first `cd` to that directory or use the full path.
# Get suggestions and feedback
uv run scripts/extract_pr_reviews.py <pr_url>
# Get full first→final comparison for deep analysis
uv run scripts/extract_pr_reviews.py <pr_url> --diff
# Same as above, but cap each FIRST/FINAL dump to 2k chars for LLM prompting
uv run scripts/extract_pr_reviews.py <pr_url> --diff --max-file-chars 2000
Workflow
Step 1: Extract with --diff
uv run scripts/extract_pr_reviews.py https://github.com/org/repo/pull/123 --diff
This outputs:
- Explicit Suggestions — exact before/after text from
suggestionblocks (supports multiple suggestion blocks per comment) - Reviewer Feedback — plain text comments (the "why" behind changes)
- File Evolution — first draft and final version of each text file
Tip: add --max-file-chars 2000 to keep each FIRST/FINAL dump lightweight, or pair --diff with --no-files if you only need the suggestion/feedback summaries.
Step 2: Analyze the Output
With the script output, perform this analysis:
A. Catalog the Explicit Suggestions
Create a table of mechanical fixes:
| Pattern | Original | Fixed |
|---|---|---|
| Grammar | "Its easier" | "It's easier" |
| Filler removal | "using this way" | "this way" |
| Capitalization | "Image Generation" | "image generation" |
B. Map Feedback to Changes
For each reviewer feedback comment:
- Find the relevant section in FIRST DRAFT
- Find the same section in FINAL VERSION
- Document what changed and why
Example:
Feedback: "would be nice to end more enthusiastically"
First draft: "...it's simple to add new tools to Claude and use them straight away."
Final: "...Let us know what you find and create in the comments below!"
Lesson: End blog posts with a call-to-action
C. Paragraph-by-Paragraph Comparison
Compare FIRST DRAFT to FINAL VERSION section by section:
- What was added?
- What was removed?
- What was reworded?
- What structural changes were made?
D. Synthesize Style Patterns
Group findings into categories:
| Category | Patterns Found |
|---|---|
| Clarity | Passive→active, shorter sentences, remove filler |
| Precision | Vague→specific, "Create"→"Generate" |
| Tone | Added enthusiasm, call-to-action endings |
| Structure | Added transitions, better section flow |
| Grammar | its/it's, subject-verb agreement |
| Content | Added links, examples, context |
Script Options
📁 All paths are relative to the directory containing this SKILL.md file.
| Flag | Output | Use Case |
|---|---|---|
| (none) | Suggestions + feedback | Quick review of what reviewers said |
--diff | Adds FIRST/FINAL file dumps to the default output | Deep analysis of how the author responded |
--max-file-chars N | Truncates each FIRST/FINAL block to N chars (appends ...[truncated X chars]) | Keep prompts within LLM token limits |
--no-files | Suppresses FIRST/FINAL dumps even when --diff is set | When you only need explicit suggestions + reviewer feedback |
--json | Raw JSON (includes file_evolutions when --diff without --no-files) | Programmatic processing |
Input formats: pass either a full PR URL, owner/repo PR_NUMBER, or owner repo PR_NUMBER.
Output Structure
Default Output
- Writing Suggestions: Grouped by reviewer, shows original→suggested text (fenced blocks) along with any reviewer note and a permalink back to GitHub
- Reviewer Feedback: Plain comments without code suggestions, each tagged with its GitHub link
With --diff
- Explicit Suggestions: Compact before/after pairs, reviewer notes, and GitHub permalinks in one place
- Reviewer Feedback: Numbered list of requests (same as default view)
- File Evolution: FIRST DRAFT and FINAL VERSION for each
.md/.txt/.rst/.mdxfile; add--max-file-charsto truncate each block with a visible...[truncated X chars]indicator
Handling File Renames
The script traces files through renames by:
- Checking each commit for rename operations
- Building a path history (e.g.,
claudeimages.md→claude-images.md→claude-and-mcp.md) - Fetching content using the correct path for each commit
Example Analysis Output
After running the script and performing LLM analysis, produce a summary like:
## Style Lessons from PR #123
### Mechanical Fixes
- Fix grammar: "Its" → "It's" (contraction)
- Lowercase generic terms: "Image Generation" → "image generation"
- Remove filler: "the output quality of" → "the quality of"
### Reviewer-Driven Changes
- **"end more enthusiastically"** → Added call-to-action in conclusion
- **"emphasize these are SoTA"** → Changed "latest" to "state-of-the-art"
- **"add blurb about MCP Server"** → Added explanatory paragraph
### Structural Improvements
- Added transition sentence between sections
- Simplified setup instructions (3 sentences → 1)
- Added new bullet point for model flexibility
Limitations
- Only extracts inline PR review comments (not issue comments or the PR description)
- Extremely long files can still be heavy; when that happens, lower
--max-file-charsor pass--no-filesto keep outputs prompt-friendly
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