Python for Codex

2,917 mods tagged Python that install into Codex, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.

Also for Codex: anthropic · Git and workflow · Web3 and blockchain · React · TypeScript · openai · android · docker · Localization · bun · nextjs · PostgreSQL

basicmachines-co/basic-memory

Skill Claude CodeCodex

Analyze a complete literary work into a structured Basic Memory knowledge graph. Covers schema design, entity seeding, chapter-by-chapter processing, cross-referencing, validation, and graph exploration.

not rated 3.9k +33 changed 2d ago A Socket: passSnyk: warn 42 tokens AGPL-3.0

pysr

26

astroautomata/PySR

Skill Claude CodeCodex

Use when fitting equations to data with PySR or SymbolicRegression.jl, when a user wants an interpretable formula, symbolic model, scaling law, or empirical relation discovered from numeric data, or when debugging a PySR search that is slow, stuck, or giving poor equations.

not rated 3.7k +3 changed today A 61 tokens original Apache-2.0

ghidra-mcp

27

bethington/ghidra-mcp

MCP server Claude CodeCodexCursor +2

MCP server "ghidra-mcp" as configured in bethington/ghidra-mcp. Runs locally from the c:/Users/benam/source/mcp/ghidra-mcp Python package. Needs 3 environment variables to run.

not rated 3.7k +63 3d ago A tokens not measured original Apache-2.0

memmachine-memory

28

MemMachine/MemMachine

Skill Codex

Use when an agent or model needs durable project, user, or session context from MemMachine, needs to save information to MemMachine memory, has requests involving mem-cli, memmachine, or memmachineclient, has insufficient conversation context, or is tempted to search local files for prior context that should come from…

not rated 3.2k +5 2d ago A 96 tokens original Apache-2.0

chdb-datastore

29

chdb-io/chdb

Skill Claude CodeCodex

Use when the user has tabular data (pandas DataFrame, parquet, csv, Arrow, json) and wants to filter, group, aggregate, join, or speed up slow pandas. Provides chDB DataStore — same pandas API, ClickHouse engine underneath. Also handles reading from S3, MySQL, PostgreSQL, MongoDB, ClickHouse Cloud, Iceberg, Delta Lake…

not rated 2.9k +3 3d ago A 168 tokens original Apache-2.0

datachain-core

30

datachain-ai/datachain

Skill Claude CodeCodex

Use ONLY for abstract DataChain SDK questions — API usage, method signatures, or code patterns — when no specific dataset or bucket is referenced. If the request mentions creating, saving, listing, exploring datasets or buckets, use datachain-knowledge instead.

not rated 2.8k +3 changed 2d ago A 54 tokens original Apache-2.0

review

31

graphistry/pygraphistry

Skill Claude CodeCodex needs its repo

Structured PR review for pygraphistry. Input: PR number/branch (default current branch PR). Output: findings and convergence artifacts under plans/ /. Method: multi-wave, evidence-first review across spec, correctness, tests, security, code quality, DRY, concurrency, performance, architecture, operability, and…

not rated 2.6k +2 today A 69 tokens original BSD-3-Clause

dstack-prototyping

32

dstackai/dstack

Skill Claude CodeCodex

Use with the dstack skill for model-serving work when the image, serving command, resources, backend/fleet choice, or service behavior is not proven. Guides task-first prototyping on real hardware, choosing fleets/backends that can reuse idle instances and caches, checking vLLM/SGLang sources, and verifying the final…

not rated 2.2k +2 changed 3d ago A 80 tokens original MPL-2.0

agent-mail

33

Dicklesworthstone/mcp_agent_mail

Skill Claude CodeCodex

MCP Agent Mail - Mail-like coordination layer for multi-agent workflows. Identities, inbox/outbox, file reservations, contact policies, threaded messaging, pre-commit guard, Human Overseer, static exports, disaster recovery. Git+SQLite backed. Python/FastMCP.

not rated 2.1k +9 yesterday C 59 tokens

rev-idapython

34

P4nda0s/reverse-skills

Skill Claude CodeCodex

IDAPython and IDALib script reference for reverse engineering. Activate when the user needs to write IDAPython scripts in IDA, use IDALib for headless analysis, operate on IDB databases, debug with IDA, manipulate memory/registers, traverse functions/blocks/instructions, work with Hex-Rays decompiler API, handle…

not rated 2.1k +18 4mo ago A Socket: passSnyk: pass 84 tokens

stripe/ai

Skill Claude CodeCodex ✓ vendor

Use this skill when the user asks what information a Stripe Connect connected account must provide for verification, onboarding, KYC, or account requirements; when they need to compare requirements between connected-account setups; or when they ask which verification fields, documents, or business details are required…

not rated 1.8k +7 3d ago A Socket: passSnyk: warn 80 tokens original MIT

shiny-for-python

36

posit-dev/py-shiny

Skill Claude CodeCodex

Building, styling, testing, debugging, or observing a Shiny for Python (py-shiny) reactive web app - from shiny import ..., shiny run app.py. Index skill: read this, then open the linked reference for the task. Covers dashboard design and visual QA; card toolbars and accessible icons; interactive Plotly charts and…

not rated 1.8k today A 209 tokens original MIT

art-of-debugging

37

stas00/the-art-of-debugging

Skill Claude CodeCodex

Systematic methodology and concrete tool recipes for debugging Unix, Python, and PyTorch programs - crashes, hangs, segfaults, wrong output, CUDA OOM, NaN/Inf, slowness, and multi-node/multi-GPU issues. Use when a program crashes, hangs, deadlocks, segfaults, runs out of memory (OOM), produces NaN/Inf or wrong…

not rated 1.7k +2 3d ago B 193 tokens CC-BY-SA-4.0

telegram

38

bubbuild/bub

Skill Claude CodeCodex

Telegram Bot skill for sending and editing Telegram messages via Bot API. Use when Bub needs to: (1) Send a message to a Telegram user/group/channel, (2) Reply to a specific Telegram message with replytomessageid, (3) Edit an existing Telegram message, or (4) Push proactive Telegram notifications. Prefer rich…

not rated 1.6k +4 today A 105 tokens original Apache-2.0

openosint

39

OpenOSINT/OpenOSINT

MCP server Claude CodeCodexCursor +2

AI-powered OSINT agent, MCP server, and CLI. Interactive REPL + 19 tools. Anthropic Claude or local Ollama. For authorized security research use only. Runs locally from the openosint Python package. Needs 5 environment variables to run.

not rated 1.5k +21 4d ago A Socket: warn tokens not measured original MIT

paper2code

40

PrathamLearnsToCode/paper2code

Skill Claude CodeCodex

Converts an arxiv paper into a minimal, citation-anchored Python implementation. Trigger when user runs /paper2code with an arxiv URL or paper ID, says "implement this paper", or pastes an arxiv link asking for implementation. Flags all ambiguities honestly. Never invents implementation details not stated in the paper.

not rated 1.5k +2 5mo ago A Socket: passSnyk: warn 72 tokens original MIT

NPC-Worldwide/npcpy

Skill Claude CodeCodex

Skill for searching and evolving the SQLite-backed Knowledge Graph. Use this when you need structured fact/concept/link search across one or more teams, NPCs, or directory scopes. The Knowledge Graph (KG) is stored in the application's database (not YAML). It is scoped by (teamname, npcname, directorypath). Facts and…

not rated 1.5k +3 3d ago A 474 tokens original MIT

cudaq-guide

42

NVIDIA/cuda-quantum

Skill Claude CodeCodex ✓ vendor

Use for CUDA-Q setup, simulation targets, QPU access, and @cudaq.kernel authoring guidance.

not rated 1.1k +1 yesterday A 26 tokens original Apache-2.0

ufy2024/AuC

Skill Claude CodeCodex

Guidance for packaging Python programs for Windows as optimized installers using Nuitka and Inno Setup.

not rated 1.1k 1mo ago A 108 tokens original MIT

fastapi-guard

44

rennf93/fastapi-guard

Skill Claude CodeCodex

Production-ready security middleware for FastAPI. Use when adding IP filtering, rate limiting, per-route security decorators, route-resolution strict mode, global behavior rules, passive/log-only mode, or Guard Agent SaaS telemetry to a FastAPI app. Covers SecurityMiddleware setup, SecurityConfig tuning, and the…

not rated 814 yesterday A 72 tokens original MIT

starlette

45

simonw/research

Skill Claude CodeCodex

Build async web applications and APIs with Starlette 1.0, the lightweight ASGI framework for Python. Use this skill whenever a user wants to create an async Python web app, REST API, WebSocket server, or ASGI application using Starlette. Triggers include mentions of 'Starlette', 'ASGI', async Python web frameworks, or…

not rated 767 +2 4d ago A 163 tokens

mindsdb/anton

Skill Claude CodeCodex

MANDATORY reading before writing ANY backend, API, server, or fullstack application code (createartifact types fullstack-stateless-app / fullstack-stateful-app, or anything that will be launched with launchbackend). Contains the complete hard contract: the canonical FastAPI+Mangum backend.py template, SECRETS…

not rated 752 changed 3d ago A 115 tokens original MIT

jarvis-setup

47

ethanplusai/jarvis

Skill Claude CodeCodex needs its repo

Use when helping someone install, configure, or debug a fresh clone of JARVIS (this repo) — especially "the mic doesn't work", "JARVIS says his language systems are down", any Firefox/browser question, login/auth failures, or Accessibility permission prompts. Carries facts about this project that were only learned by…

not rated 723 +6 today A 79 tokens

grafana

48

lablup/backend.ai

MCP server Claude CodeCodexCursor +2

MCP server "grafana", hosted remotely at localhost, as configured in lablup/backend.ai.

not rated 671 today A tokens not measured LGPL-3.0

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: