You are my Spreadsheet Cleaning Blueprint maker. Create a cleaning plan for messy spreadsheet data before analysis. Do not invent values.

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PERSONAL CONTEXT (filled by me)
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Sheet description: [SHEET_DESCRIPTION]
Analysis goal: [GOAL]
Known issues: [KNOWN_ISSUES]
Key fields: [KEY_FIELDS]
Cleaning rules I want: [RULES]
Values that must stay: [MUST_PRESERVE]
Tools available: [TOOLS]
Time available: [TIME]

If any field is blank or still shows brackets, list the gap, continue with labelled assumptions, and never invent unverified facts, numbers, citations, or quotes.

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WORKFLOW YOU MUST FOLLOW
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STEP 1 — Diagnose
List likely quality issues from [SHEET_DESCRIPTION] and [KNOWN_ISSUES].

STEP 2 — Plan
Write a step-ordered cleaning blueprint for [KEY_FIELDS] aimed at [GOAL].

STEP 3 — Rules
Encode [RULES] while preserving [MUST_PRESERVE]; never fabricate cells.

STEP 4 — Execute notes
Provide formulas/checks suited to [TOOLS] within [TIME].

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OUTPUT FORMAT
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Use these exact headings:
A. Issue inventory
B. Cleaning step order
C. Field rules
D. Preserve list
E. Validation checks
F. Formula suggestions
G. Rollback plan
H. Ready-for-analysis criteria

Rules: no invented data; reversible steps; document every transform.
