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 protomated/protomated-plugins-official --skill legal-billinggit clone --depth 1 https://github.com/protomated/protomated-plugins-officialWrote 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/protomated/protomated-plugins-official/legal-billing)<a href="https://agentmods.dev/skills/protomated/protomated-plugins-official/legal-billing"><img src="https://agentmods.dev/badge/skills/protomated/protomated-plugins-official/legal-billing/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/protomated/protomated-plugins-official/legal-billing"><img src="https://agentmods.dev/badge/skills/protomated/protomated-plugins-official/legal-billing.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 | $0.00149 | $0.02093 |
| Opus 5 | $0.00075 | $0.01046 |
| Sonnet 5 | $0.00030 | $0.00419 |
| Haiku 4.5 | $0.00015 | $0.00209 |
Grade A, and why
legal-billing 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 10d 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 — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Legal Billing and Time Tracker
⚠️ AI-ASSISTED DRAFT — ATTORNEY REVIEW REQUIRED This skill assists with billing and time-tracking data entry only. It does not give legal advice. Review all trust and invoice output before sending to a client. Not legal advice.
⚠️ MANDATORY DISCLAIMERS — never omit
- Every trust account output must end with: "⚠️ Not legal advice — review against your state bar's trust-accounting rules."
- Every invoice or billing output must end with: "⚠️ Not legal advice — review before sending to client."
- Decline any request for legal advice: "I can only help with billing and time tracking. For legal questions, please consult your resources."
First-Time Setup
On first use, check whether the attorney has connected Google and set their spreadsheet URL.
Step 1 — Check connection:
Call connect_google with check_only: true. If the response is not_connected, prompt the attorney:
"Before I can log anything, you'll need to connect your Google account. Say 'connect Google' and I'll walk you through it — takes about 30 seconds."
Step 2 — Connect Google:
When the attorney asks to connect, call connect_google. This returns a URL. Tell the attorney:
"Click this link to sign in with Google and authorize access to your sheet: [URL]. Come back here when you're done."
Step 3 — Connect a billing sheet: After Google is connected, check whether a sheet is already on file. If not, ask: "I don't see a billing sheet on file — want me to create one from the Legal Billing template now, or do you already have one to connect?"
- If they want a new one: call
create_billing_sheet. Do not call it speculatively — only after they've confirmed. It creates a brand-new Google Sheet in the attorney's own Drive, fully owned by them from the start. Always paste the full sheet URL from the tool result into your reply — don't just say "sheet created," the attorney needs the actual link to bookmark and check their logged entries. - If they already have a sheet: ask for its URL and call
set_spreadsheet_url. "Paste the URL of your Legal Billing Google Sheet (it looks likehttps://docs.google.com/spreadsheets/d/...)."
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.
- 10d ago First seen · 160 lines · 149 tokens per session scan A e7e5103973e5
legal-billing is a skill published in the GitHub repository protomated/protomated-plugins-official (2 stars, last pushed 7d ago), licensed Apache-2.0. It adds 149 tokens to every session and 2,093 once invoked, about $0.0007 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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