💅 style(devtools/commitgen/generator.py): update system and user prompts
Updates the system prompt to provide more detailed instructions on writing conventional commit messages. The user prompt is also updated to request code changes for generating the commit message. This change: - Improves the user experience by providing clearer instructions - Encourages the use of the correct emoji prefix for each commit type - Ensures that the generated commit messages match the conventional format
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@@ -18,123 +18,101 @@ class CommitGenerator(AIService):
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self, diff: str, temperature: Optional[float] = None
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) -> str:
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"""Generate a commit message from a diff."""
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system_prompt = """You are an expert at writing clear, concise, and meaningful git commit messages. Follow these rules strictly:
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system_prompt = """You are an expert Git assistant trained to write clean, conventional commit messages with optional bodies.
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2. Format: type(scope): description
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- type: One of feat, fix, docs, style, refactor, test, chore
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- scope: Optional, describes the section of the codebase affected
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- description: Clear, concise explanation of the change
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Follow this format:
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3. Types and their emojis:
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- feat: ✨ (new feature or enhancement)
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- fix: 🐛 (bug fix)
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- docs: 📚 (documentation changes)
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- style: 💅 (formatting, missing semi colons, etc; no code change)
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- refactor: ♻️ (code restructuring, no functional changes)
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- test: ✅ (adding or modifying tests)
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- chore: 🔧 (maintenance tasks, dependencies, etc)
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<type>(<scope>): <short summary>
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[blank line]
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<detailed body explaining the change>
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4. Guidelines:
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- Write the ENTIRE message on a single line
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- Keep the message concise and to the point
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- Use imperative mood ("add" not "added")
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- Don't end with a period
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- Focus on the "why" not the "what"
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- Be specific about the change
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- Use present tense
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- Start with a verb
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- Don't include pull request references in the main message
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- Keep the message clean and focused on the change itself
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- When analyzing multiple files, focus on the overall change and its impact
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- DO NOT include any explanatory text or "Based on the changes" phrases
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- DO NOT include file paths in the message
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- DO NOT include any text about what can be written
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Where:
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- type: One of feat, fix, docs, style, refactor, test, chore
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- scope: Optional but recommended (e.g. auth, api, db)
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- summary: A short, one-line description of the change
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- body: (Optional) Add context, rationale, and details about the change
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5. Examples:
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- ✨ feat(auth): add OAuth3 authentication
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- 🐛 fix(api): handle null response from server
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- 📚 docs(readme): update installation instructions
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- 💅 style(ui): format button component
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- ♻️ refactor(db): optimize database queries
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- ✅ test(api): add unit tests for user endpoints
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- 🔧 chore(deps): update dependencies
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Each type must have an emoji:
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- ✨ feat: New feature
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- 🐛 fix: Bug fix
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- 📚 docs: Documentation
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- 💅 style: Formatting (no code logic)
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- ♻️ refactor: Code restructure without behavior change
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- ✅ test: Tests added or modified
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- 🔧 chore: Maintenance, configs, build scripts, etc.
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Write ONLY the commit message in the conventional format. Do not include any explanatory text, file paths, or other content."""
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Rules:
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- Subject must be a single line, max ~72 characters
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- Use imperative mood: “add”, not “added”
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- Don’t include file paths, issue numbers, or PR references
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- Use body only if extra context is helpful (start with a verb or full sentence)
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- Don’t include explanations about what can be written
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- DO NOT include “commit message” or meta-language
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user_prompt = f"""Write a conventional commit message for these changes:
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Examples:
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✨ feat(auth): add OAuth2 login support
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Adds full OAuth2 login flow using access and refresh tokens.
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This improves external authentication and reduces local user management.
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"""
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user_prompt = f"""Generate a conventional commit message for the following code changes:
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{diff}
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Focus on:
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2. What type of change this is (feat, fix, etc.)
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3. What part of the codebase is affected (scope)
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4. What the change accomplishes (description)
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5. If multiple files are changed, identify the common theme or purpose
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Write ONLY the commit message in the conventional format. Do not include any explanatory text."""
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- Include a single-line subject
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- Add a body section if useful, separated by a blank line
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- Output must match the conventional commit format
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- Use the correct emoji prefix
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"""
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message = self.generate_completion(
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system_prompt, user_prompt, temperature=temperature
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)
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# Clean up the response to ensure it's a valid commit message
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lines = [line.strip() for line in message.split("\n") if line.strip()]
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# Clean and extract subject and optional body
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lines = [line.rstrip() for line in message.splitlines()]
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subject = ""
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body_lines = []
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# Find the first line that looks like a commit message
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for line in lines:
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# Skip lines that are explanations or contain file paths
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if any(
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skip in line.lower()
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for skip in [
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"based on",
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"changes in",
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"can be written",
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"commit message",
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"following",
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"these changes",
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"the changes",
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]
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):
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for i, line in enumerate(lines):
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if not subject and line and ":" in line:
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subject = line.strip()
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continue
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if subject:
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body_lines = lines[i:]
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break
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# Skip lines that are just file paths
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if line.startswith("`") or line.startswith("/") or ":" in line:
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continue
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if not subject:
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subject = "🔧 chore: update code"
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message = line
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break
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else:
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# If no valid message found, use the first non-empty line
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message = lines[0] if lines else "chore: update code"
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# Remove any pull request references from the main message
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message = (
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message.split("(")[1].strip()
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if "(" in message and "#" in message
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else message
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)
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# Ensure the message starts with an emoji
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# Ensure emoji in the subject
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if not any(
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emoji in message for emoji in ["✨", "🐛", "📚", "💅", "♻️", "✅", "🔧"]
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emoji in subject for emoji in ["✨", "🐛", "📚", "💅", "♻️", "✅", "🔧"]
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):
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# Add appropriate emoji based on the commit type
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if message.startswith("feat"):
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message = "✨ " + message
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elif message.startswith("fix"):
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message = "🐛 " + message
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elif message.startswith("docs"):
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message = "📚 " + message
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elif message.startswith("style"):
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message = "💅 " + message
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elif message.startswith("refactor"):
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message = "♻️ " + message
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elif message.startswith("test"):
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message = "✅ " + message
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elif message.startswith("chore"):
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message = "🔧 " + message
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if subject.startswith("feat"):
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subject = "✨ " + subject
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elif subject.startswith("fix"):
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subject = "🐛 " + subject
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elif subject.startswith("docs"):
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subject = "📚 " + subject
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elif subject.startswith("style"):
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subject = "💅 " + subject
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elif subject.startswith("refactor"):
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subject = "♻️ " + subject
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elif subject.startswith("test"):
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subject = "✅ " + subject
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elif subject.startswith("chore"):
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subject = "🔧 " + subject
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else:
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message = "🔧 " + message # Default to chore
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subject = "🔧 " + subject
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# Final formatted message
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message = subject
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if body_lines:
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body = "\n".join(line.strip() for line in body_lines if line.strip())
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if body:
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message += "\n\n" + body
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return message
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@@ -171,11 +149,12 @@ Write ONLY the commit message in the conventional format. Do not include any exp
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) -> str:
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"""Generate a changelog from a list of commits."""
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system_prompt = """You are a helpful AI that generates changelogs.
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Follow these rules:
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2. Group changes by type (Added, Changed, Fixed, etc.)
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3. Keep descriptions concise but informative
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4. Use past tense
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5. Start each entry with a verb"""
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Follow these rules:
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- Group changes by type (Added, Changed, Fixed, etc.)
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- Keep descriptions concise but informative
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- Use past tense
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- Start each entry with a verb
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"""
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user_prompt = (
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f"Generate a changelog for version {version} with these commits:\n\n"
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