fix: embed prd-creator structure in roadmap slicer

[jonit-dev]

Summary

• embed required prd-creator sections directly in the slicer prompt
• keep fallback slicer template in sync with the shipped template
• add tests preventing regression to external prd-creator references

Test Plan

• yarn vitest packages/core/src/tests/templates/slicer-prompt.test.ts packages/cli/src/tests/commands/slice.test.ts --run
• yarn verify

[github-actions]

DiffGuard AI Analysis

AI Review Summary

🏆 Overall Score: 92/100

This PR significantly enhances the slicer prompt template with detailed structural guidance, better checklists, and expanded instructions for AI-generated PRDs, accompanied by thorough test coverage updates.

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✅ Key Strengths

• Comprehensive Template Enhancement: The updated template in slicer-prompt.ts adds valuable structure including integration point checklists, mermaid diagram examples, verification plans, and explicit section requirements that will improve PRD quality.
• Strong Test Coverage: Tests are updated to verify the new template behavior, including checks that the template embeds instructions inline rather than referencing external files, and validates exact required PRD sections.
• Clear Guidance Improvements: New additions like the complexity score breakdown, user flow checklist, and output report format provide concrete structure for AI agents generating PRDs.

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⚠️ Areas for Improvement

• Minor Inconsistency Between Template Files: The TypeScript template (slicer-prompt.ts) contains more extensive enhancements than templates/slicer.md, which appears to have only a subset of the updates (missing the output section, some expanded checklists).
• Hardcoded Language in Template: The template contains English prose that may limit internationalization; consider extracting language strings if multi-language support is planned.

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📋 Issues Found

Issue Type	Issue Name	Affected Components	Description	Impact/Severity
Maintainability	Template Source Sync	slicer-prompt.ts, templates/slicer.md	The embedded template string in TypeScript and the separate markdown template file have diverged in content, which could cause confusion about which is the source of truth.	Low

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🔚 Conclusion

This is a well-structured enhancement with excellent test coverage and meaningful improvements to the PRD generation process. The only minor concern is the drift between the TypeScript template and the markdown template file, which should be reconciled but does not block merge.

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Analyzed using z-ai/glm-5