Sandbox
70 repos for context-engineering · CodexClear
FlyFission/
nuclear-grade-context-engineering

AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering.

33

Save 94% on AI coding tokens. Index your codebase, agents search instead of reading files. Works with Claude Code, Codex, Copilot, Cursor, Gemini CLI. Local MCP server, free, open source.

413
ychampion/
cskill-agents

Agent skills for coding CLIs, multi-agent runtimes, context engines, MCP extensions, and terminal tooling. Instead of using claude code's source code, give your agent skills to create your own!

36
pinoox/
neuromesh

The Biomimetic Context Engine & Neural Runtime for AI Coding Assistants

85
archcore-ai/
plugin

Spec-driven development and context engineering for Claude Code, Cursor, Codex, and GitHub Copilot — backed by project context in Git.

54
rohitg00/
pro-workflow

Claude Code learns from your corrections: self-correcting memory that compounds over 50+ sessions. Context engineering, parallel worktrees, agent teams, and 17 battle-tested skills.

2.9k
CodeAlive-AI/
codealive-mcp

Context engine for large codebases, exposed through MCP. Gives AI coding agents precise repository context; benchmarked at frontier-agent quality with ~25x lower model cost and 45% fewer tokens with semantic search.

90
jfrog/
boost

Save tokens. Maximize context, Safely

473
kunal12203/
GrapeRoot

Compounding Context for AI Coding Assistants — MCP graph engine for Claude Code, Cursor, Copilot, Gemini, OpenCode

1k
gotalab/
skillport

Bring Agent Skills to Any AI Agent and Coding Agent — via CLI or MCP. Manage once, serve anywhere.

409
timescale/
tiger-cli

Tiger CLI is the command-line interface for Tiger Cloud. It includes an MCP server for helping coding agents write production-level Postgres code.

117
getnao/
sylph
getnao/sylphHarnesses

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

196
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
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
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