Expense and SaaS Audit Agent Skill

Audits operating expenses and SaaS subscriptions to identify defensible cost reductions, seat rightsizing, and vendor renegotiations.

Context cost
3.4k tokensestimated from the bundle, loaded when it triggers
Bundle
5 files · 30.9 kB1 script among them — read before you run
Licence
MITthe author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

Audit operating expenses and SaaS subscriptions to identify defensible reductions, rightsizing, alternatives, and vendor negotiations with net savings, timing, and execution priority. Use when a business needs to reduce spend without harming revenue, customer delivery, security, compliance, or continuity; do not use to authorize cancellations, payment stops, or contract changes.

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

productivity

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md3.9 kB · preview
--- name: expense-and-saas-audit license: MIT metadata: author: ficilcom ---
9# 支出・SaaS監査
10
11成長、顧客提供、データ保護、法令順守、業務継続を壊さずに削減できる支出を特定し、候補ごとの純削減額、実現時期、検証事項、実行順序を示す。これは運営上の意思決定支援であり、会計監査、契約解釈、支払停止の可否、または外部変更の実行ではない。
12
13## 進め方
14
151. 最初に [インテークと分類](references/intake-and-classification.md) を読み、提出済みの請求書、契約、利用状況、更新情報、業務依存を質問より先に確認する。金額・利用状況・契約条件・影響評価を confirmed、reported、estimated、unknown に分け、unknown をゼロにしない。
162. 費目を重複、未使用・低利用、規模不適合、代替可能、再交渉可能、契約固定で分類する。同時に売上、顧客提供、データ・セキュリティ、法務・規制、業務継続、SSO/API/自動化、切替負荷への依存を記録する。金額だけで順位を決めない。
173. [計算モデル](references/calculation-model.md) を読み、単一通貨の匿名化JSONをスキル外に作る。SaaSでは席数、アクティブ利用、単価、請求周期、更新日、解約通知期限、最低契約、移行・再設定・教育工数を入れる。スキルのルートで python3 scripts/calculate_expense_audit.py <input.json> を実行する。
184. 出力の safe_to_execute、validate_first、do_not_cut を分ける。safe_to_execute でも実施そのものを承認済みとは扱わない。validate_first の不足根拠を先に収集し、候補の結論を変える条件だけを再計算する。
195. [報告書形式](references/report-format.md) に従い、分類、純月次・年次・初年度・分析期間の削減額、実現時期、実行順序、影響、未確定事項を示す。候補は自動実行しない。
20
21## 判断上の制約
22
23- 二重契約、休眠席、過剰プラン、年契約化、再交渉、代替、廃止は別の選択肢として扱う。年契約化の割引は、前払いによる資金繰り・柔軟性・失われる割引を隠さない。
24- 解約料、移行、再設定、教育、失われる割引、社内工数を一時費用に含める。月次・年次は継続削減額、初年度は一時費用控除後、分析期間は有効日以降に日割りした純額として区別する。
25- 売上、顧客提供、データ・セキュリティ、法務・規制、業務継続に依存するものは do_not_cut にする。SSO/API/自動化依存、契約期限・通知期限、利用実態、移行費用が未確認のものは validate_first にする。
26- unknown の金額、利用率、契約情報、切替影響を推測で埋めず、集計の不完全性と次に確認する根拠を示す。契約条項の解釈や規制上の可否が結論を左右する場合は、当日の一次情報または適切な専門家へ確認する。
27
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md108 words
Files5
LicenceMIT
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈120
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
3,280
on trigger
The instruction body and 4 supporting files, read only when the skill fires.
1.7%
of a 200k window
Ten skills this size would take about 17% of the window before you open a file.
050k100k150k200k context window

3.4k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Middling. Fine to keep on in a project where you use it weekly, worth unloading in one where you never do.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

5 files, 30.9 kB on disk. Mostly text — the instructions the model reads — with 1 script in it that your client would run only if the instructions tell it to.

  • SKILL.md3.9 kB
  • references/calculation-model.md4.9 kB
  • references/intake-and-classification.md2.6 kB
  • references/report-format.md2.2 kB
  • scripts/calculate_expense_audit.py17.3 kB
What is not in it

A skill installs nothing and depends on nothing: it is a folder your client reads. This one carries 1 script beside the text, so the bundle is 5 files you can review in full before installing. The MIT licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Expense and SaaS Audit · 3.4k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/expense-and-saas-audit/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/expense-and-saas-audit" ] && { [ ! -e .claude/skills/expense-and-saas-audit ] || { mv .claude/skills/expense-and-saas-audit "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/expense-and-saas-audit" .claude/skills/ && echo "Installed .claude/skills/expense-and-saas-audit"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add ficilcom/expense-and-saas-audit

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/expense-and-saas-audit/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/expense-and-saas-audit/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/expense-and-saas-audit" ] && { [ ! -e ~/.claude/skills/expense-and-saas-audit ] || { mv ~/.claude/skills/expense-and-saas-audit "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/expense-and-saas-audit" ~/.claude/skills/ && echo "Installed ~/.claude/skills/expense-and-saas-audit" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/expense-and-saas-audit/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referenceficilcom/expense-and-saas-audit

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

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