Sandbox
95 repos for context-engineer · Claude CodeClear
getnao/
sylph
getnao/sylphHarnesses

The open-source company brain. Run your entire company with AI agents, skills, and a self-improving context.

196
zby/
commonplace

The theory of LLM wikis, running as one. A framework for agent-operated knowledge: typed, linked, review-gated markdown your agents execute.

88
Workflowsio/
company-os-starter-kit

Build your own Company OS with Claude Code. CLAUDE.md template, 5 GTM skills, workflow plugin, safety hooks, and full blueprint.

84
clarilayer/
clarilayer

Stop re-explaining your data to your AI every session. The individual-analyst context layer, delivered over MCP (Claude Code / Cursor / Codex).

92
first-tree-ai/
first-tree-legacy

A Git-native knowledge layer for your team — and a set of tool suite that keeps it alive.

46
ViryaZheng/
promptly-prompt

Claude Code skill that forces AI to understand before executing. Three disciplines: cognition check, requirement understanding, method search.

37
TidyFactor/
Styler

Production-Stage Visual Design & In-Codebase UI Engineering Suite

110
nablo-io/
lerim

Compiles AI agent traces and truns them into reusable context.

97
ai-boost/
awesome-harness-engineering

Awesome list for AI agent harness engineering: tools, patterns, evals, memory, MCP, permissions, observability, and orchestration.

4.1k
hoangnb24/
repository-harness

Turn any repo into an agent-ready workspace for Claude Code, Codex, Cursor, and other coding agents.

1.2k

27 Skills that diagnose, build, and optimize every architectural layer of your Claude environment

40
Fergana-Labs/
stash

Automatically create new skills based on past agent traces

332

Finds the claims in your CLAUDE.md / AGENTS.md / skills that your code no longer supports. Zero-config, no API key.

47
yvgude/
lean-ctx
yvgude/lean-ctxConnectors

LeanCTX — Context Intelligence for AI systems.

3.8k
FreePeak/
LeanKG
FreePeak/LeanKGConnectors

LeanKG: Stop Burning Tokens. Start Coding Lean.

217
liatrio-labs/
spec-driven-workflow

Lightweight markdown-based workflow for collaborating with AI coding assistants using spec-driven development methodology

93
wquguru/
harness-books
wquguru/harness-booksTutorials & Guides

📚 Two books on harness engineering — the design philosophies behind Claude Code & Codex: constraints, query loops, context governance, multi-agent verification. harness-books.agentway.dev

3.1k
romiluz13/
cc10x

The Loop Engine for Claude Code — engineer the loop, not the prompt. 1 router · 9 agents · 16 skills · 4 workflows. Fail-closed gates, test honesty, anti-anchored review.

164

AI Badger - Local-first tool that extracts focused repo context for any AI chat (Claude, ChatGPT, Grok, etc.) without wasting tokens on irrelevant files.

35

Mine your Claude Code and Codex logs into a local you.md agent profile.

290