Individual skill
job-profitability-analyzer
Find out which clients and jobs actually make money -- allocate real costs (labor hours, materials, subs, overhead) against what each job billed, and rank every client by true margin. Most service businesses discover their biggest client is their least profitable.
job-profitability-analyzer/SKILL.md
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# Job Profitability Analyzer
Revenue is vanity, margin per job is survival. Service businesses (agencies, contractors, consultancies, trades) routinely lose money on their "best" clients because nobody allocates the hours. Input: invoices/revenue by job or client, time tracking exports, materials/sub costs, payroll rates, and a rough overhead number. Output: profit per job, per client, per service line -- with receipts.
## Workflow
1. **Build the job ledger.** Match every revenue line to a job/client. Match every cost: labor (hours x loaded rate -- wages plus taxes/benefits, ~1.25-1.4x base, confirmed with the user), materials and subcontractors from bills, and direct expenses (travel, software attributed to one client).
2. **Allocate overhead.** Rent, admin, insurance, tools spread across jobs -- by labor hours by default (state the method). Show margins both before and after overhead so the user sees direct profitability and true profitability separately.
3. **Rank.** `profitability-report.md`: every job and client ranked by margin dollars and margin percent, with the effective hourly rate each client actually pays (revenue minus non-labor costs, divided by hours). This one column reorders most people's client list.
4. **Diagnose the losers.** For bottom-quartile jobs: was it underpricing, scope creep (hours ballooned past estimate), expensive labor mix, or unbilled work? Cite the timesheet and invoice evidence per diagnosis.
5. **Prescribe.** Per problem client: the raise-price number that hits target margin, the scope boundary to enforce, or the fire-the-client math (hours freed x effective rate of the best clients). Pair with `pricing-strategy` for the repricing conversation.
## Rules
