legal-billing

legal-billing is a skill for Claude Code from protomated/protomated-plugins-official. It costs 149 tokens per session (2,093 once invoked), scanned A, original, Apache-2.0.

A billing and time-tracking assistant for attorneys. It records billable work, invoices, and trust-account transactions, which are movements of money held for clients.

In plain words
What is it for?
Use it to log time, manage invoices, record trust deposits or withdrawals, check revenue and trust balances, and review unbilled work or matter profitability.
Why use it?
It keeps billing records and trust balances in one workflow, while requiring attorney review of financial outputs and giving no legal advice.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the legal-billing plugin — 1 skill, 4 commands shipped together

Good fit Use it to log time, manage invoices, record trust deposits or withdrawals, check revenue and trust balances, and review unbilled work or matter profitability.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/protomated/protomated-plugins-official/legal-billing
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 protomated/protomated-plugins-official --skill legal-billing
Clone the repo
git clone --depth 1 https://github.com/protomated/protomated-plugins-official

Made for: Claude Code.

Or install legal-billing, the plugin that ships this one along with the rest of its 1 skill, 4 commands.

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 legal-billing

README.md
[![agentmods](https://agentmods.dev/badge/skills/protomated/protomated-plugins-official/legal-billing/github.svg)](https://agentmods.dev/skills/protomated/protomated-plugins-official/legal-billing)
Your own site
<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.

agentmods 80×15 button for legal-billing

Your own site · 80×15
<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>
Per session 149 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,093 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 $0.00149 $0.02093
Opus 5 $0.00075 $0.01046
Sonnet 5 $0.00030 $0.00419
Haiku 4.5 $0.00015 $0.00209

Measured 10d ago against content hash e7e5103973e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

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.

legal-billing-tracker/skills/legal-billing/SKILL.md · 160 lines

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.

⚠️ 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 like https://docs.google.com/spreadsheets/d/...)."

Read the full file on GitHub · 160 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. 10d ago First seen · 160 lines · 149 tokens per session scan A e7e5103973e5

Subscribe to this mod's changes

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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