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Context engineering repositories on GitHub: 26 ranked by stars

26 public repositories tagged Context engineering are on GitHub, with 238,632 stars between them; 21 had a push in the last 30 days. Most are written in Python (11), TypeScript (6), Rust (3). The most starred: headroomlabs-ai/headroom (75,347), shanraisshan/claude-code-best-practice (67,540), topoteretes/cognee (32,287).

SpecStream is the live web data engine for teams and agents. It reads open-source repositories on GitHub and keeps what it reads, and this page groups that reading by topic. Ask for the repositories you track by topic, language, license or activity, and new ones and changes arrive in your sheet, CRM, Slack or agent.

Every repository, most starred first

RepositoryWhat it isLanguageStarsForksLicenseLast pushRead
headroomlabs-ai/headroomCompress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP…Python75,3475,847Apache-2.0Oct 13Oct 14
shanraisshan/claude-code-best-practicefrom vibe coding to agentic engineering - practice makes claude perfectHTML67,5406,736MITOct 14Oct 14
topoteretes/cogneeCognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory with small models for freePython32,2873,363Apache-2.0Oct 14Oct 14
semantica-agi/semanticaGraph-Native Infrastructure for Context and Accountable AI SystemsPython14,0391,630MITOct 14Oct 14
trailhq/GraftTurbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your codebase.TypeScript9,822870MITOct 10Oct 11
plastic-labs/honchoMemory library for building stateful agentsPython7,610938AGPL-3.0Oct 14Oct 14
volcengine/MineContextMineContext is your proactive context-aware AI partner(Context-Engineering+ChatGPT Pulse)Python5,535415Apache-2.0May 7Oct 14
ai-boost/awesome-harness-engineeringAwesome list for AI agent harness engineering: tools, patterns, evals, memory, MCP, permissions, observability, and orchestration.Python4,828649Oct 14Oct 14
microsoft/apmAgent Package ManagerPython4,009390MITOct 14Oct 14
yvgude/lean-ctxLeanCTX — Context Gateway for AI Systems. Control what your AI can see. Open-source Engine for context selection, supported controls, and evidence.Rust3,878353Apache-2.0Oct 14Oct 14
pipeshub-ai/pipeshub-aiThe open-source context layer for AI agents. PipesHub turns your company's knowledge (Slack, Drive, Jira, GitHub, Microsoft 365 and 40+ connectors) into a permission-aware…Python3,833600Apache-2.0Oct 14Oct 14
Meirtz/Awesome-Context-EngineeringComprehensive survey on Context Engineering: from prompt engineering to production-grade AI systems. hundreds of papers, frameworks, and implementation guides for LLMs and AI…3,326295MITMay 28Oct 14
redhat-et/ripwireThe ripgrep of AI context: a zero-dependency C++23 CLI + MCP server for coding agents. Find what you want without reading the repo, then check you built what you meant — blast…C++2,433151Apache-2.0Oct 11Oct 11
Picrew/awesome-agent-harnessAn awesome list of Agent Harness engineering resources, including GitHub projects, tools, benchmarks, and practical guides.Python1,856222Oct 7Oct 14
context-space/context-spaceUltimate Context Engineering Infrastructure, starting from MCPs and IntegrationsGo81282AGPL-3.0Oct 22, 2025Oct 14
qybaihe/mumu (μ): a coding agent that thinks before it acts. A small, fast judge makes the routine calls, the big model does the work. Built on pi and AionUi.TypeScript51153MITOct 10Oct 15
Graphicle-AI/graphicleCode graph and memory for your coding agents, in one Rust program. For Claude Code, Codex, Cursor and any MCP client.Rust33527Apache-2.0Oct 21Oct 21
yzfly/awesome-context-engineeringA curated collection of resources, papers, tools, and best practices for Context Engineering in AI agents and Large Language Models (LLMs).20386CC0-1.0Sep 20Oct 14
AskTheWay/dsh-auto-memoryClaude Code-style auto-memory plugin for DeepSeek Harness (dsh): typed memory files + MEMORY.md index auto-injected into the system prompt. File-only, no external services.TypeScript1067MITOct 13Oct 15
major7apps/pensyveUniversal memory runtime for AI agentsRust9616Oct 8Oct 14
TedHaley/pensievePensieve: never lose the thread. A local MCP server and Mac app that links your files, repos, agent sessions, tickets and messages into one thread per task, for you and your AI…Python728MITOct 21Oct 21
PatrickSys/codebase-contextCodebase Context gives AI agents understanding of your codebase through semantic code search, team conventions, patterns, and memory, so they use fewer tokens, spend less time…TypeScript6512Oct 11Oct 14
Kerneta/daidocsOpen plain-text file format for AI memory. Your assistant's long-term memory as .dai files on your disk: readable by Claude, GPT, Gemini, Cursor, local models and grep (all LLM…Python534Apache-2.0Oct 7Oct 14
renezander030/agentic-task-systemCLI + MCP for agent context: a task layer over TickTick, Notion, GitHub, Obsidian & more (RRF retrieval, provenance, reviewed writes, undo) plus a knowledge-graph layer — ats kg…JavaScript163MITOct 14Oct 14
frankxai/Starlight-Intelligence-SystemOne shared brain for your whole AI fleet: attested memory, orchestration, governance and evals across Claude Code, Codex, Cursor, Gemini, Antigravity.TypeScript113MITOct 14Oct 14
timothywarner-org/copilot-memory-storeLocal JSON memory store for context engineering with GitHub Copilot and MCP clients. Includes CLI, MCP server, and custom VS Code agent.TypeScript94MITDec 15, 2025Oct 14

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Read from GitHub by SpecStream between October 11, 2026 and October 21, 2026; each row shows the day its repository was read. Stars and pushes change every day, and the GitHub page is the current one. Forks and archived repositories are left out.