microsoft/cat-agent-skills is a static website that catalogs reusable instruction sets and related packages for AI agents. People use it to search, filter, rate, and download skills for Cowork, Copilot Studio, and Scout, along with Copilot plugins and Scout automations. The catalogue entries are the skills, instructions, plugins, and settings displayed by the site.
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.
npx skills add microsoft/cat-agent-skills --skill accounting-root-skillgit clone --depth 1 https://github.com/microsoft/cat-agent-skillsWrote 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.
[](https://agentmods.dev/skills/microsoft/cat-agent-skills/accounting-root-skill)<a href="https://agentmods.dev/skills/microsoft/cat-agent-skills/accounting-root-skill"><img src="https://agentmods.dev/badge/skills/microsoft/cat-agent-skills/accounting-root-skill/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.
<a href="https://agentmods.dev/skills/microsoft/cat-agent-skills/accounting-root-skill"><img src="https://agentmods.dev/badge/skills/microsoft/cat-agent-skills/accounting-root-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00127 | $0.02962 |
| Opus 5.5 | $0.00051 | $0.01185 |
| Sonnet 5.5 | $0.00025 | $0.00592 |
| Haiku 4.5 | $0.00013 | $0.00296 |
Grade A, and why
accounting-root-skill 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Accounting Root Skill
The shared build contract for the finance and accounting work in this package — financial statements, finance presentations, reconciliation, journal entries, budgets and forecasts, and tax. Whichever workflow skill matched this request supplies the domain method; this skill governs how the deliverable is scoped, built and checked.
Important: This skill assists with finance and accounting workflows but does not provide financial, tax, or audit advice. All outputs should be reviewed by qualified financial professionals before use in financial reporting, regulatory filings, or audit documentation.
Workbook implementation gate
STOP before routing to a finance workflow or touching the files. Determine the requested output type first.
- If the request names an Excel workbook, spreadsheet, workpaper, schedule, tracker,
.xlsxfile, workbook tab, worksheet, or Excel template, loadxlsxfirst if it is offered in this conversation. - After the dedicated workbook skill loads, read the finance workflow. Use the finance workflow for accounting decisions and the dedicated skill for workbook implementation and validation. If no such skill is offered, proceed with the workbook tools this conversation does provide — never abandon the deliverable or switch the requested file type because an implementation skill is unavailable.
- For mixed-output requests, load every applicable dedicated format skill that is offered before constructing the deliverables, and use the available format-specific tools for any requested format without one. Never route a requested Word or PowerPoint output to Excel merely because the task is financial.
Available finance workflows
Identify the workflow the request calls for and load that skill before building:
| Workflow | Skill | Use when |
|---|---|---|
| Journal Entry | journal-entry |
Booking accruals (AP, payroll, prepaid), depreciation, or revenue recognition; documenting entries for audit; or building batch journal entries |
| Reconciliation | reconciliation |
Comparing GL to subledger, bank recs, intercompany recs, lease and debt roll-forwards, categorizing reconciling items, or drafting reconciliation memos and review packs |
| Financial Statements & Reporting | financial-statements |
Any financial-reporting deliverable except a slide deck — income statement, balance sheet, or cash flow (with period comparisons/variance); trial-balance workbooks; monthly/quarterly reporting packages and management summaries; footnotes and disclosures; technical accounting memos and position papers (goodwill/asset impairment, capitalization, revenue recognition — citing the governing ASC and showing the required comparison); MD&A / management commentary; and GAAP presentation / period-end requirements (ASC 220/210/230) |
| Budget and Forecast | budget-and-forecast |
Building the plan itself — loading ERP or GL actuals into a planning baseline, mapping accounts to planning lines, rolling department submissions into one company model, reconciling submissions to control totals, or cascading a company-level budget, savings, margin or investment target across departments |
| Finance Presentations | financial-presentations |
Any finance slide deck (.pptx) — quarterly or board financial-review decks, investment-committee / board / deal / M&A recommendation decks, AP/AR process-documentation slides, or department close / status meeting slides |
| Tax Preparation | tax-preparation |
Preparing income-tax provisions, ASC 740 analyses, effective-tax-rate reconciliations, deferred-tax rollforwards, estimated-tax payments, tax organizers, indirect-tax reconciliations, or tax-authority response packages |
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.
- 2d ago First seen · 112 lines · 127 tokens per session scan A 2a5c34d6c46d
accounting-root-skill is a skill published in the GitHub repository microsoft/cat-agent-skills (101 stars, last pushed yesterday), licensed MIT. It adds 127 tokens to every session and 2,962 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-11-06.
accounting-root-skill compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| accounting-root-skillmicrosoft/cat-agent-skills | Skill | 101 | yesterday | MIT | A | 127 | Claude Code, Codex |
| sector-rotationHKUDS/Vibe-Trading | Skill | 38k | today | MIT | A | 39 | Claude Code, Codex |
| strategy-pivot-designertradermonty/claude-trading-skills | Skill | 3.7k | today | MIT | A | 28 | Claude Code, Codex |
| twitter-readerhimself65/finance-skills | Skill | 3.5k | 4d ago | MIT | A | 110 | Claude Code |
| energy-procurementhashgraph-online/awesome-codex-plugins | Skill | 1.5k | today | Apache-2.0 | A | 93 | Claude Code, Codex |
| airdrop-hunting-guidenirholas/three.ws | Skill | 271 | today | Apache-2.0 | A | 54 | Claude Code, Codex |
| multi-expert-analyzerdigoal/blog | Skill | 8.6k | 4d ago | GPL-2.0 | A | 292 | Codex |