Sheldon Finlay
77fd9e0cd6
Planner now sees specific examples of verifiable criteria (grep, test commands, file checks) alongside vague anti-patterns. Drives higher story quality which directly improves evaluator accuracy.
43 lines
1.9 KiB
Markdown
43 lines
1.9 KiB
Markdown
# Planner Context
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This file provides additional context for PRD generation.
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## Story Decomposition Guidelines
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When breaking a feature into stories, think about:
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### Independence
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Each story should be independently deployable. After completing story N, the codebase should be in a valid, working state — even if the feature isn't fully built yet.
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### Scope
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A story must be completable in a single iteration. Keep each story focused — a handful of files modified, not a sweeping change across the whole codebase. If a story requires reading and modifying more than ~10 files, it's too big — split it.
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### Failure Isolation
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If a story fails (evaluator rejects it), the next iteration should be able to retry it cleanly. Stories with too many moving parts are hard to retry because partial state is messy.
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### Evaluability
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Every story must have criteria the evaluator can independently verify by reading code, running commands, or testing behavior.
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Good criteria are specific and checkable:
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- "Grep for 'HARDCODED_KEY' returns zero matches"
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- "The function returns 404 when the user doesn't exist"
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- "Running `npm test` passes with no failures"
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- "The config file contains entries for all three required env vars"
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Bad criteria are vague or subjective:
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- "The code is clean"
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- "Works correctly"
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- "Performance is improved"
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- "Error handling is robust"
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## PRD Anti-Patterns
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Avoid these common mistakes:
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- **Stories too large:** "Build the API" — split into individual endpoints
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- **Stories too small:** "Create the file" — combine with meaningful work in that file
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- **Vague criteria:** "Works correctly" — what does correctly mean? Be specific.
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- **Missing dependencies:** Story 5 needs Story 3's database table but doesn't say so
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- **Testing as afterthought:** Tests should be part of each story, not a separate "add tests" story at the end
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- **UI without backend:** A UI story that calls an API that doesn't exist yet
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