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cost-breakdown

Break down Claude Code costs using the Agent Monitor pricing engine. Shows per-model costs (input, output, cache_read, cache_write at $/Mtok rates), per-session costs, daily trends, and compaction baseline token recovery. Use when analyzing spending, comparing model costs, or planning budgets.

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  • SKILL.md3.3 KB
  • agents/openai.yaml269 B

SKILL.md(원문)

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Cost Breakdown

Detailed cost analysis from the Agent Monitor's pricing engine.

Input

The user provides: $ARGUMENTS

This may be: "today", "this week", "last 30 days", a session ID, or "budget $50/week".

Data Sources

EndpointReturns
GET /api/pricing{ pricing: [{ model_pattern, display_name, input_per_mtok, output_per_mtok, cache_read_per_mtok, cache_write_per_mtok }] }
GET /api/pricing/costTotal cost: { total_cost, breakdown: [{ model, input_tokens, output_tokens, cache_read_tokens, cache_write_tokens, cost, matched_rule }] }
GET /api/pricing/cost/{sessionId}Per-session cost with same breakdown shape
GET /api/sessions?limit=200Sessions list — each includes inline cost field (bulk pricing)
GET /api/analyticsToken totals (total_input, total_output, total_cache_read, total_cache_write — baselines pre-summed), daily trends

How costs are calculated

The pricing engine matches model names against model_pattern using SQL LIKE (e.g. claude-sonnet-4-5% matches claude-sonnet-4-5-20250514). Longest pattern wins for specificity. Cost per model:

cost = (input_tokens / 1M) × input_per_mtok
     + (output_tokens / 1M) × output_per_mtok
     + (cache_read_tokens / 1M) × cache_read_per_mtok
     + (cache_write_tokens / 1M) × cache_write_per_mtok

Token counts are effective totals = current + baseline (baselines preserve pre-compaction tokens that would otherwise be lost when the transcript JSONL is rewritten).

Default pricing tiers (seeded on first run)

FamilyInput $/MtokOutput $/MtokCache Read $/MtokCache Write $/Mtok
Opus 4.5/4.6$5$25$0.50$6.25
Sonnet 4/4.5/4.6$3$15$0.30$3.75
Haiku 4.5$1$5$0.10$1.25

Report Sections

1. Cost by Model

Table from /api/pricing/cost breakdown — each model with 4 token counts + cost. Highlight which pricing rule matched.

2. Cost by Session (Top 10 Most Expensive)

From sessions list with inline cost — sort descending. Show session name, model, duration, cost.

3. Daily Cost Trend

Cross-reference daily_sessions with per-session costs to compute daily spend. Show 7/30-day trend with direction arrows.

4. Token Efficiency Analysis

  • Cache hit rate: total_cache_read / (total_cache_read + total_input) × 100 — higher = more efficient
  • Compaction baseline recovery: Tokens preserved via baseline columns (tokens not lost to compaction)
  • Output/input ratio: Balanced ratio indicates good prompt efficiency

5. Cost Optimization Opportunities

  • Sessions where cache_write >> cache_read (poor cache reuse)
  • Expensive models used for simple tasks (check subagent_type vs model)
  • Sessions with many compactions (context overflow = wasted tokens)

Output

Structured Markdown with tables. Currency as USD to 4 decimal places. Include total and per-model subtotals.

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같은 저장소의 스킬

Inspect fired CCAM alerts and manage alert rules for token thresholds, event patterns, inactivity, and status duration. Use when acknowledging alerts, creating or editing a rule, checking cooldowns, or connecting alert rules to webhook targets.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

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Identify anomalous sessions using Agent Monitor data — cost outliers from the pricing engine, token anomalies (cache miss spikes, compaction baseline surges), unusual event type ratios (PreToolUse/PostToolUse gaps, APIError clusters), behavioral deviations from workflow intelligence (complexity score outliers, error propagation anomalies), and sessions with abnormal metadata (extreme turn_count, high thinking_blocks, zero turn_duration).

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

hoangsonww/Claude-Code-Agent-Monitor1.1천2026년 10월 23일 업데이트

Produce a detailed report on APIError events from Agent Monitor data — counts over time, which sessions and models are affected, and the likely root cause (rate limits, overload/529, or context-window pressure) inferred from each event's summary and data payload. Use when API errors spike or when you need to explain why requests are failing.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

hoangsonww/Claude-Code-Agent-Monitor1.1천2026년 10월 23일 업데이트

benchmark

무료

Benchmark one session (or a small recent set) against the rolling average using Agent Monitor data — cost, total tokens, tool count, and workflow complexity score — and report where each metric lands as a percentile of the population. Tells you whether a session was normal, cheap, or an outlier. Use when judging whether a session was typical or out of band.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

hoangsonww/Claude-Code-Agent-Monitor1.1천2026년 10월 23일 업데이트

Define a spend budget for Claude Code and, optionally, create a cost alert rule that fires when usage crosses the limit, via POST /api/alerts/rules on the Agent Monitor dashboard. Reads current spend from /api/pricing/cost to size the budget sensibly and explains every rule field before writing. Use when setting a spend limit or wiring up a budget guardrail.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

hoangsonww/Claude-Code-Agent-Monitor1.1천2026년 10월 23일 업데이트

Analyze prompt-cache effectiveness for Claude Code usage from the Agent Monitor dashboard — cache hit rate (total_cache_read / (total_cache_read + total_input)), cache_write vs cache_read reuse, cache-read vs cache-write spend, and the sessions with the poorest reuse. Pulls token totals from /api/analytics, per-session detail from /api/sessions, and dollar splits from /api/pricing/cost. Use when diagnosing cache spend or deciding whether prompt caching is paying off.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

hoangsonww/Claude-Code-Agent-Monitor1.1천2026년 10월 23일 업데이트

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