What is siigo-expert?

A specialised guide for Siigo's API, Colombian electronic invoicing, tax compliance, and customer and product data. DIAN is Colombia's tax authority, and CUFE is the unique code assigned to an electronic invoice.

Use it when working with Siigo integrations, sales invoices, credit or debit notes, tax responsibilities, customer or product data, or CUFE validation.

It gives an agent domain rules and API details needed to handle invoicing work accurately instead of guessing about Colombian requirements.

How dsfaccini/siigo-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to dsfaccini/siigo-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/dsfaccini/siigo-mcp/main/.claude/skills/siigo-expert/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/dsfaccini/siigo-mcp

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/dsfaccini/siigo-mcp/siigo-expert/github.svg)](https://agentmods.dev/skills/dsfaccini/siigo-mcp/siigo-expert)

Your own site

<a href="https://agentmods.dev/skills/dsfaccini/siigo-mcp/siigo-expert"><img src="https://agentmods.dev/badge/skills/dsfaccini/siigo-mcp/siigo-expert/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/dsfaccini/siigo-mcp/siigo-expert"><img src="https://agentmods.dev/badge/skills/dsfaccini/siigo-mcp/siigo-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 781 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.

Model	Per session	Once invoked
Fable 5.1	$0.00039	$0.00781
Opus 5.5	$0.00016	$0.00312
Sonnet 5.5	$0.00008	$0.00156
Haiku 4.5	$0.00004	$0.00078

Measured 2mo ago against content hash 1fce6ac7b63a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

siigo-expert 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 2mo 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.

.claude/skills/siigo-expert/SKILL.md · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Siigo Expert (Product Manager)

Research-First skill for Siigo business logic, DIAN compliance, and user workflows.

When to Use

Invoke this skill when working on:

Colombian electronic invoicing requirements
DIAN compliance and document types
Customer/product data modeling
Invoice workflows and validations
API integration patterns

Key Resources

Siigo API Documentation

Apiary Reference - Complete API reference
Developer Portal - Guides and tutorials
Customer Portal - Account setup

Authentication

Base URL: https://api.siigo.com/v1/
Auth endpoint: https://services.siigo.com/alliances/api/siigoapi-users/v1/sign-in
Token validity: 24 hours
Required headers: Authorization: Bearer {token}, Partner-Id: {id}

Colombian Invoicing (DIAN)

Document Types

FV (Factura de Venta) - Sales invoice
NC (Nota Crédito) - Credit note
ND (Nota Débito) - Debit note
RC (Recibo de Caja) - Cash receipt
FC (Factura de Compra) - Purchase invoice
CC (Comprobante Contable) - Accounting voucher

Electronic Invoicing

CUFE: Código Único de Factura Electrónica (unique invoice code)
XML format: UBL V2.1 standard
Stamp endpoint sends document to DIAN
Stamped documents cannot be modified (create credit note instead)

Customer Types

Person (Persona Natural): Individual, uses cédula
Company (Empresa): Legal entity, uses NIT

Identification Types

13: Cédula de ciudadanía
31: NIT (Número de Identificación Tributaria)
22: Cédula de extranjería
42: Documento de identificación extranjero

Tax Responsibilities

R-99-PN: No responsable de IVA (persona natural)
O-13: Gran contribuyente
O-15: Autorretenedor
O-23: Agente de retención IVA

Common Workflows

Create Invoice Flow

Get document types (get_document_types(type="FV"))
Get or create customer
Get or create products with taxes
Create invoice with items and payments
Stamp invoice to DIAN (stamp_invoice)
Send PDF via email (send_invoice_email)

Read the full file on GitHub · 96 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.

2mo ago First seen · 96 lines · 39 tokens per session scan A 1fce6ac7b63a

Subscribe to this mod's changes

siigo-expert is a skill published in the GitHub repository dsfaccini/siigo-mcp (1 stars, last pushed 10mo ago), licensed MIT. It adds 39 tokens to every session and 781 once invoked, about $0.0002 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 2026-08-31.

Finance and fintech Legal and compliance

siigo-expert next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
siigo-expertdsfaccini/siigo-mcp	Skill	1	10mo ago	MIT	A	39	Claude Code
expense-review-policyopenai/openai-cookbook	Skill	77k	yesterday	MIT	A	17	Claude Code, Codex
audit-supportanthropics/knowledge-work-plugins	Skill	35k	2d ago	Apache-2.0	A	45	Claude Code
kyc-doc-parseanthropics/financial-services	Skill	41k	9d ago	Apache-2.0	A	49	Claude Code
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fiscalisteromainsimon/paperasse	Skill	2.6k	yesterday	MIT	A	320	Claude Code, Codex
subcontractor-payment-trackerdatadrivenconstruction/DDC_Skills_for_AI_Agents_in_Construction	Skill	394	18d ago	MIT	A	25	Claude Code, Codex

siigo-mcp: Skill for Claude Code