What is HestAI-MCP CLAUDE.md?

A set of project instructions for Claude Code, an AI coding assistant, working on the HestAI-MCP Python server.

Use it when developing or reviewing HestAI-MCP code, running formatting, linting, type checks, tests, or deciding where persistent agent and configuration changes belong.

It gives the assistant the project's commands, code standards, file-ownership rules, and checks required before changes are committed.

How elevanaltd/HestAI-MCP configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to elevanaltd/HestAI-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/elevanaltd/HestAI-MCP/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/elevanaltd/HestAI-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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/elevanaltd/hestai-mcp/claude-md.svg)](https://agentmods.dev/instructions/elevanaltd/hestai-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/elevanaltd/hestai-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/elevanaltd/hestai-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 791 This file is loaded in full into every session.

When invoked 791 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.

Model	Per session	Once invoked
Fable 5.1	$0.00791	$0.00791
Opus 5	$0.00396	$0.00396
Sonnet 5	$0.00158	$0.00158
Haiku 4.5	$0.00079	$0.00079

Measured 7d ago against content hash 1411108de3a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

HestAI-MCP 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 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.

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 · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HestAI MCP Server

Python MCP server providing context management tools for Claude Code.

Quick Commands

Always use .venv/bin/python — the system python does not have project packages. The .venv is created by the session startup hook (uv sync --all-extras).

# Quality gates (run before committing)
.venv/bin/python -m ruff check src tests scripts
.venv/bin/python -m black --check src tests scripts
.venv/bin/python -m mypy src
.venv/bin/python -m pytest

# Fix formatting
.venv/bin/python -m black src tests scripts
.venv/bin/python -m ruff check --fix src tests scripts

# Run specific test markers
.venv/bin/python -m pytest -m smoke       # Fast sanity checks
.venv/bin/python -m pytest -m behavior    # Behavioral tests (NOW)
.venv/bin/python -m pytest -m contract    # Contract tests (SOON)

Governance: Bundled Hub vs .hestai-sys/

.hestai-sys/ is READ-ONLY runtime delivery. Changes there are lost on MCP server restart.

To modify agents, skills, patterns, cognitions, or specs persistently:

Write to: src/hestai_mcp/_bundled_hub/library/ (committed source, packaged into MCP server)
Never modify: .hestai-sys/ directly (runtime copy, gitignored, overwritten on restart)

The MCP server copies _bundled_hub/ contents to .hestai-sys/ at startup. The flow is: src/hestai_mcp/_bundled_hub/ → (packaged) → MCP server → (delivered) → .hestai-sys/

Domain Authority for Hub Changes

Changes to bundled hub artifacts MUST be delegated to the domain expert via oa-router:

Agent changes → delegate to agent-expert (agent structure, archetypes, capabilities)
Skill/pattern changes → delegate to skills-expert (spec compliance, anchor kernels, discovery)

Do NOT modify skills or agent definitions directly — oa-router enforces blocking authority over these domains at runtime through the anchor ceremony process.

Core Files

src/hestai_mcp/mcp/server.py - MCP server entry point
src/hestai_mcp/mcp/tools/ - MCP tool implementations (clock_in, clock_out, bind)
src/hestai_mcp/ai/ - AI client and provider abstractions
src/hestai_mcp/schemas/ - Pydantic schemas
src/hestai_mcp/_bundled_hub/ - Governance source (agents, skills, patterns, cognitions)
tests/ - Test suite mirroring src/ structure
.hestai/north-star/ - Project North Star and component North Stars
docs/ARCHITECTURE.md - System architecture reference

Read the full file on GitHub · 75 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.

7d ago First seen · 75 lines · 791 tokens per session scan A 1411108de3a0

Subscribe to this mod's changes

HestAI-MCP CLAUDE.md is an instructions file published in the GitHub repository elevanaltd/HestAI-MCP (0 stars, last pushed today), licensed Apache-2.0. It adds 791 tokens to every session, about $0.0040 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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HestAI-MCP: Instructions file for Claude Code