bl-view-mcp: Instructions file for Claude Code

CLAUDE.md

bl-view-mcp CLAUDE.md is an instructions file for Claude Code from irresi/bl-view-mcp. It costs 5,085 tokens per session, scanned C, original, MIT.

Project instructions for a Black-Litterman portfolio optimization server. Black-Litterman is a method that combines market-based expectations with an investor's views to produce portfolio allocations.

In plain words
What is it for?
Use them when installing, preparing data for, testing, or running this financial-analysis MCP server.
Why use it?
They document the required Python setup, data downloads, optional dependencies, tests, and a warning that missing data may cause slow startup or timeouts.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is irresi/bl-view-mcp's own configuration. It tells Claude Code how to work on bl-view-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything bl-view-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to irresi/bl-view-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/irresi/bl-view-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/irresi/bl-view-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.

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README.md
[![agentmods](https://agentmods.dev/badge/instructions/irresi/bl-view-mcp/claude-md.svg)](https://agentmods.dev/instructions/irresi/bl-view-mcp/claude-md)
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<a href="https://agentmods.dev/instructions/irresi/bl-view-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/irresi/bl-view-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 5,085 This file is loaded in full into every session.
When invoked 5,085 The same file — it is already loaded in full.
Security scan C 2 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 $0.05085 $0.05085
Opus 5 $0.02542 $0.02542
Sonnet 5 $0.01017 $0.01017
Haiku 4.5 $0.00509 $0.00509

Measured 7d ago against content hash 066b4bd14656, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade C, and why

bl-view-mcp CLAUDE.md scanned grade C with 2 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 7d 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -LsSf https://astral.sh/uv/install.sh | sh

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -LsSf https://astral.sh/uv/install.sh | sh
CLAUDE.md · 573 lines

How it starts

The opening of the file, as written. The whole thing — 573 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Black-Litterman MCP Server

Project Summary

Black-Litterman portfolio optimization MCP server for AI agents (Claude, Windsurf, Google ADK).

Core Philosophy: Prior (Market Equilibrium) + Views (AI Opinions) = Posterior (Optimal Portfolio)

Development Environment

Prerequisites

  • Python >= 3.11
  • uv (Package Manager)

Setup

# 1. Install uv (if not installed)
curl -LsSf https://astral.sh/uv/install.sh | sh

# 2. Install dependencies
make install          # Base + agent extras
# or
uv sync               # Base only
uv sync --extra agent # Include agent extras

# 3. Download data (Important: Run before starting the server!)
make download-data      # S&P 500 (~500 tickers, GitHub Release)
make download-nasdaq100 # NASDAQ 100 (~100 tickers)
make download-etf       # ETF (~130 tickers)
make download-crypto    # Crypto (100 symbols, requires --extra crypto)

# 4. Run tests
make test-simple

stdio mode warning: Starting the server without data may trigger auto-download taking 30+ seconds. LLM may disconnect due to timeout, so pre-downloading is strongly recommended.

Optional Dependencies

[project.optional-dependencies]
agent = ["google-adk", "google-genai"]  # For ADK Web UI
dev = ["pytest", "mypy", "ruff"]        # For development

Makefile Commands

Command Description
make install Install all dependencies (uv sync --extra agent)
make sync Install base dependencies only (uv sync)
make test-simple Run basic tests
make server-stdio Server for Windsurf/Claude
make server-http HTTP server for Google ADK (port 5000)
make web-ui ADK Web UI (port 8000)
make quickstart install + sample + test at once
make check Check environment status

Git Workflow Rules

Important: Do not merge branches directly. Always merge through Pull Request.

# Don't do this
git checkout main
git merge feature-branch

# Correct way
git push origin feature-branch
# -> Create PR on GitHub -> Review -> Merge

Read the full file on GitHub · 573 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. 7d ago First seen · 573 lines · 5,085 tokens per session scan C 066b4bd14656

Subscribe to this mod's changes

bl-view-mcp CLAUDE.md is an instructions file published in the GitHub repository irresi/bl-view-mcp (0 stars, last pushed 9mo ago), licensed MIT. It adds 5,085 tokens to every session, about $0.0254 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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