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siigo-mcp CLAUDE.md

siigo-mcp CLAUDE.md is an instructions file for Claude Code from dsfaccini/siigo-mcp. It costs 398 tokens per session, scanned A, original, MIT.

Project instructions for Claude Code, an AI coding assistant, focused on a server for Siigo, Colombian electronic invoicing software.

In plain words
What is it for?
Guiding work on Siigo invoice features, the server’s HTTP conversion, testing, deployment, and project-specific workflows.
Why use it?
They give a new coding session the project’s current status, structure, tools, and next steps.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths.

not rated 1 8mo ago A scan 398 tokens original MIT
View the source file dsfaccini/siigo-mcp
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.

agentmods
npx agentmods add instructions/dsfaccini/siigo-mcp/claude-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.

agentmods badge for siigo-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/dsfaccini/siigo-mcp/claude-md.svg)](https://agentmods.dev/instructions/dsfaccini/siigo-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/dsfaccini/siigo-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/dsfaccini/siigo-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 398 This file is loaded in full into every session.
When invoked 398 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00398 $0.00398
Opus 5 $0.00199 $0.00199
Sonnet 5 $0.00080 $0.00080
Haiku 4.5 $0.00040 $0.00040

Measured 5d ago against content hash ed730ba16be8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

siigo-mcp CLAUDE.md 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 5d 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.md · 44 lines

What it actually says

Siigo MCP Server

MCP server for Siigo invoicing software (Colombian electronic invoicing).

Quick Start for New Session

  1. Read .claude/skills/dev-workflow/PROGRESS.md for current progress
  2. Read ~/.claude/plans/humble-painting-lantern.md for detailed plan

Current Status: Ready for HTTP Mode

Done: Full MCP server with 32 tools working in stdio mode Next: Convert to HTTP/SSE for public Railway deployment with per-request auth

Project Structure

src/siigo_mcp/
├── server.py       # FastMCP entry (needs HTTP transport)
├── auth.py         # Siigo token management
├── client.py       # API client (needs per-request factory)
└── tools/          # 32 tools: customers, products, invoices, credit_notes, journals, reference

Key Tech

  • FastMCP 2.14+ for MCP server
  • httpx for async API calls
  • Pydantic Logfire for observability (conditional on LOGFIRE_TOKEN)
  • Railway for hosting

Skills Available

  • dev-workflow - Iterative coding with PROGRESS.md tracking
  • siigo-expert - Siigo API and Colombian invoicing reference
  • technical - FastMCP/MCP best practices
  • infrastructure - Railway, Docker, deployment

Next Task Summary

Convert from stdio (single-tenant) to HTTP/SSE (multi-tenant):

  1. Switch mcp.run(transport="sse")
  2. Accept credentials via headers: X-Siigo-Username, X-Siigo-Access-Key, X-Siigo-Partner-Id
  3. Create client per-request using Context
  4. Update Dockerfile to expose port 8000
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. 5d ago First seen · 44 lines · 398 tokens per session scan A ed730ba16be8

Subscribe to this mod's changes

siigo-mcp CLAUDE.md is an instructions file published in the GitHub repository dsfaccini/siigo-mcp (1 stars, last pushed 8mo ago), licensed MIT. It adds 398 tokens to every session, about $0.0020 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.

Finance and fintech
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