arxivist CLAUDE.md

arxivist CLAUDE.md is an instructions file for coding agents from agentculture/arxivist. It costs 2,377 tokens per session, scanned A, original, MIT.

Repository guidance for arxivist, an unfinished command-line tool intended to fetch arXiv research papers, store them in a knowledge base, implement their methods, and compare results with the papers' claims. The current code is still a generic agent template.

In plain words
What is it for?
Use it when extending the command-line template, replacing its placeholder documentation, or building paper fetching, knowledge storage, implementation, and benchmarking features.
Why use it?
It clarifies the difference between the planned research-paper tool and the existing scaffold, preventing developers from mistaking template behavior for completed arXiv features.

Instructions file

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/agentculture/arxivist/claude-md
Clone the repo
git clone --depth 1 https://github.com/agentculture/arxivist

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 arxivist CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/agentculture/arxivist/claude-md.svg)](https://agentmods.dev/instructions/agentculture/arxivist/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/agentculture/arxivist/claude-md"><img src="https://agentmods.dev/badge/instructions/agentculture/arxivist/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,377 This file is loaded in full into every session.
When invoked 2,377 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.02377 $0.02377
Opus 5 $0.01189 $0.01189
Sonnet 5 $0.00475 $0.00475
Haiku 4.5 $0.00238 $0.00238

Measured 5d ago against content hash 4f5916f3c7b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

arxivist 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 5d 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 · 162 lines

How it starts

The opening of the file, as written. The whole thing — 162 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.

What this repo is (read first)

arxivist is an AgentCulture mesh agent. Its stated domain (see pyproject.toml and README.md):

Agent + CLI that fetches arXiv papers, maintains a knowledge base, implements paper solutions, and benchmarks them against the papers' claims.

That domain is not built yet. The code currently in arxivist/ is the culture-agent-template scaffold — an agent-first introspection CLI (whoami, learn, explain, overview, doctor, cli) and nothing arXiv-specific. The runtime prose in README.md, arxivist/cli/_commands/learn.py, and arxivist/explain/catalog.py still literally describes the package as "a clonable template for AgentCulture mesh agents." When you build the real domain, you will be replacing that template prose, not adding alongside it.

So there are two distinct kinds of work here, and they call for different mindsets:

  • Extending the agent — adding arXiv fetch / knowledge-base / implement / benchmark functionality. This is greenfield: add new noun groups following the existing CLI pattern (below) and retire the template framing as you go.
  • Maintaining the scaffold — CI, skill re-syncs, version bumps, identity. The conventions below are load-bearing and enforced in CI; keep them green.

Commands

This is a uv-managed, Python 3.12+ package. The runtime has zero third-party dependencies (dependencies = [] in pyproject.toml) — keep it that way unless the domain genuinely requires a dependency, because the empty-deps property is part of the agent-first design. teken, pytest, lint tools, etc. are dev-only.

uv sync                                  # install deps + the package (editable)

# Tests
uv run pytest -n auto                     # full suite, parallel (what CI runs)
uv run pytest "tests/test_cli.py::test_whoami_text"   # a single test
uv run pytest -k whoami                    # tests matching a keyword
bash .claude/skills/run-tests/scripts/test.sh -p      # same, via the run-tests skill

# The CLI itself (two equivalent entry points)
uv run arxivist <verb> [--json]
uv run python -m arxivist <verb>

# Lint (CI's `lint` job runs all of these; line length is 100 everywhere)
uv run black --check arxivist tests
uv run isort --check-only arxivist tests
uv run flake8 arxivist tests
uv run bandit -c pyproject.toml -r arxivist
markdownlint-cli2 "**/*.md" "#node_modules" "#.local" "#.claude/skills" "#.teken"

# The agent-first rubric gate (CI's hardest gate — see below)
uv run teken cli doctor . --strict

Read the full file on GitHub · 162 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. 5d ago First seen · 162 lines · 2,377 tokens per session scan A 4f5916f3c7b0

Subscribe to this mod's changes

arxivist CLAUDE.md is an instructions file published in the GitHub repository agentculture/arxivist (2 stars, last pushed 1mo ago), licensed MIT. It adds 2,377 tokens to every session, about $0.0119 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.

Related

Other instructions, from other repositories

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens