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mcp-tap: Instructions file for Claude Code

CLAUDE.md

mcp-tap CLAUDE.md is an instructions file for Claude Code from felipestenzel/mcp-tap. It costs 2,083 tokens per session, scanned A, original, MIT.

A set of instructions for coding agents working on the mcp-tap project. It defines required checks and steps before, during, and after code changes.

In plain words
What is it for?
Use it when an agent is changing the mcp-tap codebase and needs to follow its development process.
Why use it?
It gives agents project-specific rules so they are less likely to skip issue tracking, branch creation, memory checks, or tests.

Instructions file for Claude Code

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

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

not rated 0repo 8mo ago A scan 2,083 tokens original MIT
View source ↗ felipestenzel/mcp-tap
Reuse

Borrowing it

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

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 mcp-tap CLAUDE.md

README.md
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Your own site
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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.

agentmods 80×15 button for mcp-tap CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/felipestenzel/mcp-tap/claude-md"><img src="https://agentmods.dev/badge/instructions/felipestenzel/mcp-tap/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,083 This file is loaded in full into every session.
When invoked 2,083 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.02083 $0.02083
Opus 5.5 $0.00833 $0.00833
Sonnet 5.5 $0.00417 $0.00417
Haiku 4.5 $0.00208 $0.00208

Measured 2mo ago against content hash a3ce5f0c3284, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-tap CLAUDE.md scanned grade A 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 2mo 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

│ └── subprocess.py # Safe async subprocess wrapper
CLAUDE.md · 183 lines

How it starts

The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.

mcp-tap — Project Rules

The last MCP server you install by hand. Python 3.11+ | FastMCP | Hexagonal Architecture | MIT License

MANDATORY RULES FOR ALL CODE AGENTS

These rules apply to ANY code agent working on this project. No exceptions.

Before Implementing (Pre-flight)

  1. Check existing issues: Read both docs/issues/ (active) and docs/issues/resolved/ (closed) to verify if the problem was already documented
  2. Check MEMORY.md: Read ~/.claude/projects/.../memory/MEMORY.md for context and lessons learned
  3. Check agent memories: Read relevant .claude/agent-memory/<agent>/MEMORY.md for specialized context
  4. Create issue: Create the GitHub issue first to get an ID, then document it in docs/issues/YYYY-MM-DD_<issue-id>_slug.md using docs/issues/_TEMPLATE.md BEFORE starting implementation
  5. Create feature branch: ALWAYS create a branch before starting any work. NEVER commit directly to main.
    • Feature: feature/YYYY-MM-DD-description
    • Fix: fix/YYYY-MM-DD-description
    • Refactor: refactor/YYYY-MM-DD-description
    • Register the branch name in the issue doc (Branch field)
  6. Run baseline tests: pytest tests/ to know the current state before touching code
  7. Use Context7: ALWAYS use MCP Context7 (resolve-library-id + query-docs) to validate best practices and latest versions of libraries before implementing

During Implementation

  1. Follow hexagonal architecture strictly:
    • models.py — Frozen dataclasses, StrEnums (domain layer, ZERO dependencies)
    • errors.py — Exception hierarchy (domain layer, ZERO dependencies)
    • registry/, config/, installer/, connection/ — Adapters (infrastructure layer)
    • tools/ — Use cases / entry points (application layer)
    • server.py — Composition root (wiring only, no business logic)
    • Protocols in base.py files define ports — implementations are adapters
    • Direction of dependency: tools → models/errors ← adapters. Adapters NEVER import tools.

Read the full file on GitHub · 183 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. 2mo ago First seen · 183 lines · 2,083 tokens per session scan A a3ce5f0c3284

Subscribe to this mod's changes

mcp-tap CLAUDE.md is an instructions file published in the GitHub repository felipestenzel/mcp-tap (0 stars, last pushed 8mo ago), licensed MIT. It adds 2,083 tokens to every session, about $0.0083 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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