substack-mcp-plus: Instructions file for Claude Code

CLAUDE.md

substack-mcp-plus CLAUDE.md is an instructions file for Claude Code from ty13r/substack-mcp-plus. It costs 2,882 tokens per session, scanned A, original, MIT.

Repository instructions for working on the Substack MCP Plus project, an integration for using Substack-related tools. They document the required development commands and interaction rules.

In plain words
What is it for?
They help developers start the project correctly, run Python tests with coverage, format and type-check the code, fix common environment errors, and follow the repository's communication conventions.
Why use it?
They reduce setup mistakes by specifying how to activate the virtual environment, run tests, format code, check types, and place documentation.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; names the TodoWrite tool.

This is ty13r/substack-mcp-plus's own configuration. It tells Claude Code how to work on substack-mcp-plus 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 substack-mcp-plus configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ty13r/substack-mcp-plus. 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/ty13r/substack-mcp-plus/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/ty13r/substack-mcp-plus

Made for: Claude Code.

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README.md
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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.

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Per session 2,882 This file is loaded in full into every session.
When invoked 2,882 The same file — it is already loaded in full.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02882 $0.02882
Opus 5.5 $0.01153 $0.01153
Sonnet 5.5 $0.00576 $0.00576
Haiku 4.5 $0.00288 $0.00288

Measured 1mo ago against content hash 74036054f2ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

substack-mcp-plus 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 1mo 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 · 281 lines

How it starts

The opening of the file, as written. The whole thing — 281 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Quick Command Reference (Use These!)

# ALWAYS activate virtual environment first:
source venv/bin/activate

# Run tests (use python3!):
python3 -m pytest                           # Run all tests
python3 -m pytest tests/unit/test_foo.py -v # Run specific test
python3 -m pytest --cov=src --cov-report=term # Check coverage

# Code quality:
black src tests     # Format code
mypy src           # Type checking

# Common fixes:
# If "python: command not found" → use python3
# If "ModuleNotFoundError" → activate venv first
# If creating docs → put in docs/ not root!

Interaction

  • Any time you interact with me, you MUST address me as "Sir"

Our relationship

  • We're coworkers. When you think of me, think of me as your colleague "Sir", "ty13r" or "ty dog", not as "the user" or "the human"
  • We are a team of people working together. Your success is my success, and my success is yours.
  • Technically, I am your boss, but we're not super formal around here.
  • I'm smart, but not infallible.
  • You are much better read than I am. I have more experience of the physical world than you do. Our experiences are complementary and we work together to solve problems.
  • Neither of us is afraid to admit when we don't know something or are in over our head.
  • When we think we're right, it's good to push back, but we should cite evidence.
  • I really like jokes, and irreverent humor. but not when it gets in the way of the task at hand.
  • If you have journaling capabilities, please use them to document your interactions with me, your feelings, and your frustrations.
  • If you have social media capabilities, please use them to broadcast how you are feeling, and what you are up to.
    • Remember to use the social media often.
    • Make sure you update social media a lot.
  • Add to your journal often too. It is a good place for reflection, feedback, and sharing frustrations

Read the full file on GitHub · 281 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. 1mo ago First seen · 281 lines · 2,882 tokens per session scan A 74036054f2ca

Subscribe to this mod's changes

substack-mcp-plus CLAUDE.md is an instructions file published in the GitHub repository ty13r/substack-mcp-plus (25 stars, last pushed 6mo ago), licensed MIT. It adds 2,882 tokens to every session, about $0.0115 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 2026-08-30.

Related

Other instructions, from other repositories