Borrowing it
Nothing to install: this file belongs to SanDiegoAIStudio/mcp-context-manager. 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/SanDiegoAIStudio/mcp-context-manager/main/CLAUDE.mdgit clone --depth 1 https://github.com/SanDiegoAIStudio/mcp-context-managerWrote 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/sandiegoaistudio/mcp-context-manager/claude-md)<a href="https://agentmods.dev/instructions/sandiegoaistudio/mcp-context-manager/claude-md"><img src="https://agentmods.dev/badge/instructions/sandiegoaistudio/mcp-context-manager/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/sandiegoaistudio/mcp-context-manager/claude-md"><img src="https://agentmods.dev/badge/instructions/sandiegoaistudio/mcp-context-manager/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 | $0.01273 | $0.01273 |
| Opus 5 | $0.00636 | $0.00636 |
| Sonnet 5 | $0.00255 | $0.00255 |
| Haiku 4.5 | $0.00127 | $0.00127 |
Grade B, and why
mcp-context-manager CLAUDE.md scanned grade B with 1 finding 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
cat ~/.claude/settings.json | grep mcp How it starts
The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MCP Context Manager (MCM) - Claude Code Project Guide
Project Location: ~/Developer/tools/mcm-context-manager
Type: CLI tool for MCP optimization and context management
Last Updated: 2025-11-20
Quick Start
# Install
./install.sh
# Discover and optimize MCPs
mcm discover
mcm optimize
mcm status
What MCM Does
Problem: MCP servers consume 5-15% of context window each, making it impossible to use many MCPs simultaneously.
Solution: MCM converts MCPs to optimized formats (CLI tools, scripts, skills) and loads them on-demand, saving 90-95% of context.
Results:
- 90% context savings (26,700 → 2,800 tokens)
- 4x more productive (30-40 tasks vs 8-10)
- Add unlimited MCPs
- Lower costs
- Zero maintenance after setup
Technology Stack
- Language: Bash scripts + Python utilities
- No Dependencies: Pure shell scripting
- Platform: macOS/Linux
Project Structure
mcm-context-manager/
├── src/ # Source scripts
│ ├── discover.sh # MCP discovery
│ ├── optimize.sh # Optimization engine
│ └── monitor.sh # Runtime monitoring
│
├── examples/ # Usage examples
├── docs/ # Documentation
├── install.sh # Installation script
├── README.md # Comprehensive guide (12KB)
└── REPO_DESCRIPTION.md # Project description
Installation
# Clone or ensure in ~/Developer/tools/mcm-context-manager
cd ~/Developer/tools/mcm-context-manager
# Run installer
./install.sh
# Verify
mcm --version
Common Commands
# Discovery
mcm discover # Find all MCPs
mcm discover --format [cli|script|skill] # With format preference
# Optimization
mcm optimize # Optimize all MCPs
mcm optimize --dry-run # Preview changes
# Monitoring
mcm status # Show current state
mcm stats # Usage statistics
# Management
mcm enable [mcp-name] # Enable MCP
mcm disable [mcp-name] # Disable MCP
mcm list # List all MCPs
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.
- 10d ago First seen · 237 lines · 1,273 tokens per session scan B 18147ba7ad36
mcp-context-manager CLAUDE.md is an instructions file published in the GitHub repository SanDiegoAIStudio/mcp-context-manager (2 stars, last pushed 25d ago), licensed MIT. It adds 1,273 tokens to every session, about $0.0064 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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