standard-cost-variance

standard-cost-variance is a skill for Claude Code from vivy-yi/finance-skills. It costs 107 tokens per session (2,391 once invoked), scanned A, original, MIT.

A process for comparing actual production costs with standard costs, which are the expected costs for materials, labour, and manufacturing overhead. It separates the difference into quantity, price, and efficiency effects.

In plain words
What is it for?
Use it for monthly cost reviews, material price and usage analysis, labour efficiency checks, manufacturing-overhead review, and updating standards when input costs change.
Why use it?
It shows whether higher costs came from using more materials or time, paying higher prices, or working less efficiently. It also assigns likely responsibility for each difference.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions CLAUDE.md.

Good fit Use it for monthly cost reviews, material price and usage analysis, labour efficiency checks, manufacturing-overhead review, and updating standards when input costs change.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vivy-yi/finance-skills/standard-cost-variance
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add vivy-yi/finance-skills --skill standard-cost-variance
Clone the repo
git clone --depth 1 https://github.com/vivy-yi/finance-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for standard-cost-variance

README.md
[![agentmods](https://agentmods.dev/badge/skills/vivy-yi/finance-skills/standard-cost-variance/github.svg)](https://agentmods.dev/skills/vivy-yi/finance-skills/standard-cost-variance)
Your own site
<a href="https://agentmods.dev/skills/vivy-yi/finance-skills/standard-cost-variance"><img src="https://agentmods.dev/badge/skills/vivy-yi/finance-skills/standard-cost-variance/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for standard-cost-variance

Your own site · 80×15
<a href="https://agentmods.dev/skills/vivy-yi/finance-skills/standard-cost-variance"><img src="https://agentmods.dev/badge/skills/vivy-yi/finance-skills/standard-cost-variance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,391 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00107 $0.02391
Opus 5 $0.00053 $0.01196
Sonnet 5 $0.00021 $0.00478
Haiku 4.5 $0.00011 $0.00239

Measured 12d ago against content hash f6a6e87d61bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

standard-cost-variance scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

finance-skills/skills/cost-control/skills/standard-cost-variance/SKILL.md · 283 lines

How it starts

The opening of the file, as written. The whole thing — 283 lines — stays where its author put it; the contents beside it link to each section on GitHub.

加载上下文

首次使用时: 读取 ../../CLAUDE.md 获取场景级配置(成本类型/标准成本/超支判断标准)。


/standard-cost-variance — 标准成本差异分析

Examples

→ 示例:用户说"标准成本和实际成本差了不少,帮我分解一下差异来源",系统应调用本技能,执行标准成本差异分解。

→ 示例:用户说"原材料价格上涨了,帮我算算对标准成本的影响有多大",系统应调用本技能,评估原材料价格变化对标准成本的影响。

→ 示例:用户说"帮我们调整一下标准成本,反映新的材料价格和人工费率",系统应调用本技能,执行标准成本更新计算。

第一步:获取成本数据

从 [ERP]/[COST] 获取标准成本和实际成本数据:

□ 本期数据:[YYYY年MM月]
□ 标准成本数据:材料/工时/费用标准
□ 实际成本数据:材料/工时/费用实际

□ 获取字段:
  材料成本 | 人工成本 | 制造费用 | 总成本
  标准用量 | 实际用量 | 标准单价 | 实际单价

第二步:材料成本差异分析

材料成本差异 = 量差 + 价差:

□ 材料成本总额:实际 [XXX万] vs 标准 [XXX万]
□ 差异:[±XXX万]

量差计算:
□ 标准用量:[X] kg
□ 实际用量:[X] kg
□ 用量差异:[±X] kg
□ 量差 =(实际用量 - 标准用量)× 标准单价 = [±XXX万]

价差计算:
□ 标准单价:[X] 元/kg
□ 实际单价:[X] 元/kg
□ 价格差异:[±X] 元/kg
□ 价差 =(实际单价 - 标准单价)× 实际用量 = [±XXX万]

□ 材料成本总差异:[±XXX万] = 量差 [±XXX万] + 价差 [±XXX万]

材料差异归因:

量差归因(生产效率):
□ 工艺变更导致损耗增加
□ 工人操作培训不足
□ 设备老化导致良率下降
□ 原材料质量波动
□ 产品结构变化(小批量占比高)

价差归因(采购效率):
□ 市场材料价格上涨
□ 采购时机选择失误
□ 供应商整合不足
□ 未享批量折扣
□ 替代材料引入

责任归属:
□ 生产部门:量差
□ 采购部门:价差(市场因素除外)
□ 市场因素:采购不可控,报财务总监

第三步:人工成本差异分析

人工成本差异 = 效率差异 + 工资率差异:

□ 人工成本总额:实际 [XXX万] vs 标准 [XXX万]
□ 差异:[±XXX万]

效率差异计算:
□ 标准工时:[X] h
□ 实际工时:[X] h
□ 工时差异:[±X] h
□ 效率差异 =(实际工时 - 标准工时)× 标准工资率 = [±XXX万]

工资率差异计算:
□ 标准工资率:[X] 元/h
□ 实际工资率:[X] 元/h
□ 工资率差异:[±X] 元/h
□ 工资率差异 =(实际工资率 - 标准工资率)× 实际工时 = [±XXX万]

□ 人工成本总差异:[±XXX万] = 效率差异 [±XXX万] + 工资率差异 [±XXX万]

人工差异归因:

效率差异归因(生产效率):
□ 新员工占比高(学习曲线)
□ 产品工艺复杂度上升
□ 设备故障导致等待
□ 生产计划不均衡
□ 培训计划执行情况

工资率差异归因(HR):
□ 年度调薪执行
□ 高技能岗位招聘困难
□ 人员结构变化
□ 地区薪资调整

责任归属:
□ 生产部门:效率差异
□ HR/管理层:工资率差异(市场因素除外)

第四步:制造费用差异分析

制造费用差异分析:

□ 制造费用总额:实际 [XXX万] vs 标准 [XXX万]
□ 差异:[±XXX万]

固定费用差异:
□ 预算产量:[X] 件
□ 实际产量:[X] 件
□ 产能利用率:[X%]([实际]/[预算])
□ 固定费用差异:分摊差异 [XXX万]

可变费用差异:
□ 各可变费用科目实际 vs 标准

□ 主要超支科目:
  - [折旧]:[+XXX万]
  - [水电]:[+XXX万]
  - [维修]:[+XXX万]

费用差异归因:

□ 产能利用率低(固定费用摊薄)
□ 能源价格上涨
□ 设备老化导致维修增加
□ 物料消耗超标

责任归属:
□ 生产部门:效率/物料消耗
□ 设备部门:维修费用
□ 管理层:能源价格/固定费用结构

第五步:生成差异分析报告

═══════════════════════════════════════
标准成本差异分析报告
分析期间:[YYYY年MM月]
报告日期:[YYYY-MM-DD]
═══════════════════════════════════════

【总成本差异概览】

        | 标准成本 | 实际成本 | 差异     | 差异率
--------|----------|----------|----------|--------
直接材料| [XXX万]  | [XXX万]  | [±XXX万] | [±X%]
直接人工| [XXX万]  | [XXX万]  | [±XXX万] | [±X%]
制造费用| [XXX万]  | [XXX万]  | [±XXX万] | [±X%]
总成本  | [XXX万]  | [XXX万]  | [±XXX万] | [±X%]

【直接材料差异分析】

□ 材料成本总差异:[±XXX万]
  - 量差:[±XXX万]([±X%])
  - 价差:[±XXX万]([±X%])

□ TOP 超支材料:
  - [材料A]:[XXX万] — 量差 [±XXX万] / 价差 [±XXX万]
  - [材料B]:[XXX万] — 量差 [±XXX万] / 价差 [±XXX万]

□ TOP 超支产品:
  - [产品A]:[XXX万] 超支
  - [产品B]:[XXX万] 超支

差异性质:
□ 责任差异:[XXX万](可归因)
□ 市场差异:[XXX万](不可控)

【直接人工差异分析】

□ 人工成本总差异:[±XXX万]
  - 效率差异:[±XXX万]([±X%])
  - 工资率差异:[±XXX万]([±X%])

□ 产量:[X] 件
□ 标准工时:[X] h
□ 实际工时:[X] h
□ 单位产品标准工时:[X] h/件
□ 单位产品实际工时:[X] h/件

□ 人均产出:[X] 件/人(目标 [X] 件/人)

差异性质:
□ 效率差异:[XXX万](生产部门责任)
□ 工资率差异:[XXX万](HR/管理层责任)
□ 市场调整:[XXX万](不可控)

【制造费用差异分析】

□ 制造费用总差异:[±XXX万]

□ 产能利用率:[X%](目标 [X%])

□ TOP 超支科目:
  - [科目A]:[XXX万] 超支 — 原因 [...]
  - [科目B]:[XXX万] 超支 — 原因 [...]

□ 固定费用摊薄:[XXX万](产能利用率不足)

【责任归属汇总】

□ 生产部门责任:[XXX万](量差 + 效率差异 + 物料消耗)
□ 采购部门责任:[XXX万](价差)
□ HR/管理层责任:[XXX万](工资率差异)
□ 市场/不可控因素:[XXX万]

【改善建议】

□ 材料成本改善:
  - [建议1] — 预期节约 [XXX万]
  - [建议2] — 预期节约 [XXX万]

□ 人工成本改善:
  - [建议1] — 预期节约 [XXX万]
  - [建议2] — 预期节约 [XXX万]

□ 制造费用改善:
  - [建议1] — 预期节约 [XXX万]
  - [建议2] — 预期节约 [XXX万]

═══════════════════════════════════════
置信度:[✅ 高 / ⚠️ 中 / 🔴 低]
数据截止:[YYYY-MM-DD]
═══════════════════════════════════════

Read the full file on GitHub · 283 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 283 lines · 107 tokens per session scan A f6a6e87d61bc

Subscribe to this mod's changes

standard-cost-variance is a skill published in the GitHub repository vivy-yi/finance-skills (29 stars, last pushed 2mo ago), licensed MIT. It adds 107 tokens to every session and 2,391 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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