invoice-reconciliation

invoice-reconciliation is a skill for Claude Code from igptai/skills. It costs 87 tokens per session (1,311 once invoked), scanned A, original, MIT.

An email-based invoice tool that finds invoices, extracts their amount, currency, sender, and date, converts amounts into the user's local currency, and returns structured results for accounting. Invoice reconciliation means checking and organizing invoices so records are ready for bookkeeping.

In plain words
What is it for?
Use it to collect invoices from a chosen email period, standardize their amounts, and prepare an organized invoice list for accountant export.
Why use it?
It removes the need to search across email manually and normalize multiple currencies before sending the information to an accountant or accounting system.

Skill for Claude Code

Written for Claude Code: Claude Code plugin machinery.

Part of the igpt-finance plugin — 6 skills, 1 agent shipped together

Good fit Use it to collect invoices from a chosen email period, standardize their amounts, and prepare an organized invoice list for accountant export.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/igptai/skills/invoice-reconciliation
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 igptai/skills --skill invoice-reconciliation
Clone the repo
git clone --depth 1 https://github.com/igptai/skills

Made for: Claude Code.

Or install igpt-finance, the plugin that ships this one along with the rest of its 6 skills, 1 agent.

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 invoice-reconciliation

README.md
[![agentmods](https://agentmods.dev/badge/skills/igptai/skills/invoice-reconciliation/github.svg)](https://agentmods.dev/skills/igptai/skills/invoice-reconciliation)
Your own site
<a href="https://agentmods.dev/skills/igptai/skills/invoice-reconciliation"><img src="https://agentmods.dev/badge/skills/igptai/skills/invoice-reconciliation/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 invoice-reconciliation

Your own site · 80×15
<a href="https://agentmods.dev/skills/igptai/skills/invoice-reconciliation"><img src="https://agentmods.dev/badge/skills/igptai/skills/invoice-reconciliation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,311 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 $0.00087 $0.01311
Opus 5 $0.00044 $0.00656
Sonnet 5 $0.00017 $0.00262
Haiku 4.5 $0.00009 $0.00131

Measured 10d ago against content hash 9ebf9ab793e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

invoice-reconciliation 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.

plugins/igpt-finance/skills/invoice-reconciliation/SKILL.md · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Invoice Reconciliation

Prerequisites

This skill needs the iGPT MCP at https://mcp.igpt.ai/.

If the MCP tools aren't available or return an auth error, tell the user to install the iGPT plugin (/plugin marketplace add igptai/skills) or add https://mcp.igpt.ai/ as a connector, then complete OAuth and say "ready". Retry once after they confirm. Never invent tokens or OAuth URLs. For deeper troubleshooting: https://raw.githubusercontent.com/igptai/skills/main/shared/mcp-guard.md


What This Skill Does

Finds all invoices received via email, extracts the amount, currency, sender, and date for each, converts every amount to the user's local currency, and returns a clean structured schema the user can send directly to their accountant or import into accounting software.


Workflow

  1. Before calling any tool, collect these values from the user. Offer the defaults and let the user override them; do not invent values they did not give.

    • [time_range] — what window of email to scan. The user may give this in any form ("the current month", "last 30 days", "May 2024"). Default: the current calendar month. Keep the user's natural phrasing for use in the ask input; convert to ISO dates separately for the search call.
    • [local_currency] — the currency to convert all amounts into (e.g. USD, EUR, ILS). No default — must come from the user.
  2. Call search with:

    • query: invoice receipt billing payment due amount
    • date_from: ISO start date derived from [time_range]
    • date_to: ISO end date derived from [time_range] (or today if open-ended)
  3. Call ask with:

    • input: Find all invoices and billing emails received in [time_range]. For each invoice extract: the sender company or name, the invoice number if present, the invoice date, the amount due, and the currency. Then convert each amount to [local_currency] using current exchange rates. Return every invoice as a structured record.
    • output_format: { "strict": true, "schema": { "type": "object", "description": "Invoice reconciliation report for a specific time period", "additionalProperties": false, "properties": { "period_from": { "type": "string", "description": "ISO8601 start date of the reconciliation period" }, "period_to": { "type": "string", "description": "ISO8601 end date of the reconciliation period" }, "local_currency": { "type": "string", "description": "The currency all amounts have been converted to (e.g. USD, EUR, ILS)" }, "invoices": { "type": "array", "description": "List of every invoice found in email during the period", "items": { "type": "object", "description": "A single invoice extracted from email", "additionalProperties": false, "properties": { "sender": { "type": "string", "description": "Company or person who sent the invoice" }, "invoice_number": { "type": "string", "description": "Invoice number or reference, empty string if not found" }, "invoice_date": { "type": "string", "description": "ISO8601 date of the invoice" }, "original_amount": { "type": "number", "description": "The invoice amount in its original currency" }, "original_currency": { "type": "string", "description": "The currency code of the original invoice amount (e.g. USD, EUR, GBP)" }, "converted_amount": { "type": "number", "description": "The invoice amount converted to the user's local currency" }, "converted_currency": { "type": "string", "description": "The local currency code the amount was converted to" }, "due_date": { "type": "string", "description": "ISO8601 payment due date, empty string if not found" }, "status": { "type": "string", "description": "Payment status based on email evidence", "enum": ["paid", "unpaid", "unknown"] } }, "required": [ "sender", "invoice_number", "invoice_date", "original_amount", "original_currency", "converted_amount", "converted_currency", "due_date", "status" ] } }, "total_converted": { "type": "number", "description": "Sum of all invoice amounts converted to local currency" }, "total_unpaid_converted": { "type": "number", "description": "Sum of all unpaid invoice amounts converted to local currency" }, "summary": { "type": "string", "description": "One or two sentence summary of total invoices found, total amount, and any unpaid items" } }, "required": [ "period_from", "period_to", "local_currency", "invoices", "total_converted", "total_unpaid_converted", "summary" ] } }

Read the full file on GitHub · 149 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 · 149 lines · 87 tokens per session scan A 9ebf9ab793e9

Subscribe to this mod's changes

invoice-reconciliation is a skill published in the GitHub repository igptai/skills (16 stars, last pushed 4mo ago), licensed MIT. It adds 87 tokens to every session and 1,311 once invoked, about $0.0004 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 2026-08-30.