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 bromso/metapowers --skill chart-of-accountsgit clone --depth 1 https://github.com/bromso/metapowersWrote 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/bromso/metapowers/chart-of-accounts)<a href="https://agentmods.dev/skills/bromso/metapowers/chart-of-accounts"><img src="https://agentmods.dev/badge/skills/bromso/metapowers/chart-of-accounts/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/bromso/metapowers/chart-of-accounts"><img src="https://agentmods.dev/badge/skills/bromso/metapowers/chart-of-accounts.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 | $0.00009 | $0.00493 |
| Opus 5 | $0.00005 | $0.00246 |
| Sonnet 5 | $0.00002 | $0.00099 |
| Haiku 4.5 | $0.00001 | $0.00049 |
Grade A, and why
chart-of-accounts scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Chart of Accounts
Design a customized chart of accounts for "$ARGUMENTS". Structure the account hierarchy to match the business type, size, and reporting needs.
Prerequisites
None — utility skill, run anytime. Should be done before starting the bookkeeping cycle.
Process
-
Understand the business:
- What type of business? (service, retail, manufacturing, SaaS, etc.)
- What size? (solo, small team, growing company)
- What reporting is needed? (basic P&L, departmental, project-based)
- Any industry-specific accounts? (inventory, WIP, deferred revenue)
-
Design account structure:
- Start from the shared template at
shared/chart-of-accounts-template.md - Add industry-specific accounts
- Remove accounts that don't apply
- Adjust numbering for growth (leave gaps for future accounts)
- Consider sub-accounts for detailed tracking
- Start from the shared template at
-
Define account properties:
- For each account: number, name, type, normal balance (debit/credit)
- Group into categories: Assets, Liabilities, Equity, Revenue, COGS, Expenses
- Mark which accounts are active vs. inactive
- Note any accounts requiring special handling (tax, compliance)
-
Validate the structure:
- Ensure all transaction types have a home
- Verify numbering is consistent and allows expansion
- Check that the chart supports required financial reports
- Confirm alignment with tax reporting categories
-
Write the artifact to
.metapowers/bookkeeping/$ARGUMENTS/chart-of-accounts.mdwith sections:- Business Context — type, size, and reporting needs
- Account Listing — full chart with number, name, type, normal balance
- Account Groups — summary of categories and their purpose
- Usage Notes — guidance on when to use each account
- Customization Log — what was changed from the template and why
Output
The chart of accounts written to .metapowers/bookkeeping/$ARGUMENTS/chart-of-accounts.md. Present a summary highlighting:
- Total number of accounts by category
- Key customizations for this business
- Recommended accounts to add as the business grows
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.
- 12d ago First seen · 53 lines · 9 tokens per session scan A 03d2da4d15e7
chart-of-accounts is a skill published in the GitHub repository bromso/metapowers (1 stars, last pushed 4mo ago), licensed MIT. It adds 9 tokens to every session and 493 once invoked, about $0.0000 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 2026-08-31.
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