// Estimate the cost of a task before starting it. Analyzes task complexity, predicts token usage, and compares cost across all Claude models. Use when user says 'estimate cost', 'how much will this cost', 'cost estimate', or '/cost-estimate'.
Advanced cost intelligence: efficiency scoring, waste detection, ROI metrics, model savings calculator, anomaly detection, and GitHub badge generation. Use when user says 'insights', 'efficiency', 'waste', 'roi', 'savings', 'anomaly', 'badge', or '/cost-insights'.
Real-time cost tracking and budget management for Claude Code sessions. Shows current spend, burn rate, budget status, per-tool and per-model breakdown. Use when user says 'cost', 'budget', 'spending', 'how much', 'token usage', 'export', or '/cost-guardian'. Subcommands: budget, resume, reset, config, export, status.
Generate detailed cost reports with charts and breakdowns. Shows daily/weekly/monthly spend, per-tool costs, per-branch costs, and trends. Use when user says 'cost report', 'spending report', 'usage report', 'show costs', 'branch costs', or '/cost-report'.
| name | cost-estimate |
| description | Estimate the cost of a task before starting it. Analyzes task complexity, predicts token usage, and compares cost across all Claude models. Use when user says 'estimate cost', 'how much will this cost', 'cost estimate', or '/cost-estimate'. |
| argument-hint | <task description> |
| allowed-tools | Bash, Read, Grep, Glob |
Estimate the cost of a coding task before execution, with multi-model comparison.
| Task Type | Typical Tool Calls | Est. Tokens |
|---|---|---|
| Bug fix (single file) | 5-10 | 5K-15K |
| Bug fix (multi-file) | 10-25 | 15K-40K |
| Small feature | 15-30 | 25K-60K |
| Medium feature | 30-60 | 60K-150K |
| Large feature | 60-120 | 150K-400K |
| Refactor (small) | 10-20 | 15K-30K |
| Refactor (large) | 40-80 | 80K-200K |
| Code review | 5-15 | 10K-30K |
node "${CLAUDE_SKILL_DIR}/../../scripts/pricing.js" compare <est_input_tokens> <est_output_tokens> <current_model>
node -e "
const store = require('${CLAUDE_SKILL_DIR}/../../scripts/store');
store.initDb();
const daily = store.getDailyBreakdown(30);
if (daily.length > 0) {
const avg = daily.reduce((s, d) => s + d.cost, 0) / daily.length;
console.log('Your avg daily spend: \$' + avg.toFixed(2) + ' (' + daily.length + ' days tracked)');
}
const total = store.getTotalEntries();
console.log('Total tracked tool calls: ' + total);
"
Present the estimate clearly:
Cost Estimate: <task description>
Complexity: <Low/Medium/High>
Est. Reads: <N files>
Est. Edits: <N files>
Est. Tools: <N total tool calls>
Est. Tokens: <N total tokens>
Model Comparison:
Model Input Output Total
─────────────────────────────────────────────────────────────
Claude Haiku 4.5 $0.04 $0.20 $0.24
Claude Sonnet 4.6 $0.15 $0.75 $0.90 ← current
Claude Opus 4.6 $0.75 $3.75 $4.50
💡 Claude Haiku 4.5 would be 73% cheaper
Based on: <reasoning>
Always include the model comparison table. Be honest about uncertainty — these are estimates, not guarantees.