Borrowing it
Nothing to install: this file belongs to asgard-ai-platform/mcp-universalec-e-invoice. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/asgard-ai-platform/mcp-universalec-e-invoice/main/CLAUDE.mdgit clone --depth 1 https://github.com/asgard-ai-platform/mcp-universalec-e-invoiceWrote 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/instructions/asgard-ai-platform/mcp-universalec-e-invoice/claude-md)<a href="https://agentmods.dev/instructions/asgard-ai-platform/mcp-universalec-e-invoice/claude-md"><img src="https://agentmods.dev/badge/instructions/asgard-ai-platform/mcp-universalec-e-invoice/claude-md/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/instructions/asgard-ai-platform/mcp-universalec-e-invoice/claude-md"><img src="https://agentmods.dev/badge/instructions/asgard-ai-platform/mcp-universalec-e-invoice/claude-md.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 | $0.00665 | $0.00665 |
| Opus 5 | $0.00332 | $0.00332 |
| Sonnet 5 | $0.00133 | $0.00133 |
| Haiku 4.5 | $0.00067 | $0.00067 |
Grade A, and why
mcp-universalec-e-invoice 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 8d 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 — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MCP Universal EC E-Invoice Server
Overview
MCP server wrapping the Universal EC (汎宇電商) Taiwan e-invoice POS Web Service (JSON, MIG4.1). Exposes 27 tools covering all available function codes via stdio JSON-RPC 2.0.
Setup
uv venv && source .venv/bin/activate
uv pip install -e ".[dev]"
cp .env.example .env # then fill in your credentials
Run
python mcp_server.py
Test
# Unit tests (mocked, no credentials needed)
pytest tests/ --ignore=tests/test_regression.py -v
# Regression tests (requires .env with valid credentials)
pytest tests/test_regression.py -v -s
Architecture
stdio (JSON-RPC 2.0)
→ mcp_server.py (entry point, side-effect imports trigger tool registration)
→ app.py (FastMCP singleton)
→ tools/*_tools.py (@mcp.tool() decorated functions)
→ connectors/einvoice_client.py (single POST connector)
→ config/settings.py (URL + credentials from .env)
Tool Modules (27 tools)
| Module | Tools | Function Codes |
|---|---|---|
| system_tools.py | get_system_time | Y01 |
| invoice_number_tools.py | get_invoice_numbers, get_next_period_numbers, get_invoice_numbers_expanded, get_next_period_numbers_expanded | A01, C01, Z21, Z22 |
| b2c_invoice_tools.py | create_b2c_invoice, create_b2c_invoice_named, void_b2c_invoice | C0401, C0401N, C0501 |
| b2b_invoice_tools.py | create_b2b_invoice, void_b2b_invoice, create_b2b_exchange_invoice, void_b2b_exchange_invoice | A0401, A0501, A0101, A0201 |
| allowance_tools.py | create_b2c_allowance, create_b2c_allowance_named, void_b2c_allowance, create_b2b_allowance, void_b2b_allowance, create_b2b_exchange_allowance | D0401, D0401N, D0501, B0401, B0501, B0101 |
| cancel_tools.py | cancel_invoice, batch_cancel_invoice | C0701, B0701 |
| query_tools.py | get_cancel_status, get_downloaded_track_ranges, get_assignment_info, get_winning_list | Z11, Z31, Z33, Z34 |
| admin_tools.py | upload_next_period_tracks, assign_branch_tracks, report_unused_tracks | Z32, E0401, E0402 |
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.
- 8d ago First seen · 57 lines · 665 tokens per session scan A 0f2b40f96c76
mcp-universalec-e-invoice CLAUDE.md is an instructions file published in the GitHub repository asgard-ai-platform/mcp-universalec-e-invoice (0 stars, last pushed 5mo ago), licensed MIT. It adds 665 tokens to every session, about $0.0033 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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