Topic · Automation and Agents

Context Engineering and Agent Memory skills for Claude Code and Codex

Skills for managing what sits in an agent's context window and what it remembers between sessions: context fundamentals, compression, degradation and optimization guides, filesystem scratchpads, handoff documents, conversation cloning, and persistent memory backed by Redis, Activeloop Hivemind, Deep Agents stores or a codebase graph. They keep long tasks on track without rereading everything.

Highest-scoring context engineering skills in the October 22, 2026 snapshot: chat-history from mblode/agent-skills (91/100), deep-reader from tronghieu/agent-skills (90/100) and slicing-code-context from trailofbits/skills (89/100). Scores come from the Suede Skill Check.

9 from official publishers. 11 bundle scripts. 2 connect to an outside service. Listed in AI Agents and LLM Engineering (29), Productivity and Knowledge Work (1), Developer Tools and Frameworks (1).

All 31 context engineering skills

SkillRepositoryWhat it does
chat-history 91/100 · Amblode/agent-skillsRecovers decisions, previous fixes, and research from past AI conversations with source evidence, reading local Claude Code, Codex, Grok, and Cursor history.
context-compression 86/100 · Bmuratcankoylan/Agent-Skills-for-Context-EngineeringGuides compression of long-running agent sessions through structured summarization, compaction, and durable handoff summaries that preserve decisions, files, risks, and next actions.
context-degradation 86/100 · Bmuratcankoylan/Agent-Skills-for-Context-EngineeringDiagnoses and mitigates context degradation, including lost-in-middle failures, context poisoning, context clash, context confusion, and performance problems caused by accumulated or conflicting context.
context-fundamentals 84/100 · Bmuratcankoylan/Agent-Skills-for-Context-EngineeringExplains the foundations of context engineering, including the anatomy of a context window, attention mechanics, and why context quality matters more than quantity.
context-optimization 86/100 · Bmuratcankoylan/Agent-Skills-for-Context-EngineeringImproves context efficiency through context budgeting, observation masking, KV-cache strategy, partitioning, and token-cost reduction, extending effective context capacity without lowering answer quality.
data-structure-protocol 82/100 · Bk-kolomeitsev/data-structure-protocolBuilds and navigates a graph-based structural memory of codebases for LLM agents, storing modules, functions, dependencies, public APIs, and the reasons for each connection.
deep-reader 90/100 · Atronghieu/agent-skillsReads and answers questions about long books and papers without loading the whole text into one context window, keeping page-anchored notes.
filesystem-context 86/100 · Bmuratcankoylan/Agent-Skills-for-Context-EngineeringGuides file-backed context for agent work, including durable scratchpads, tool-output offloading, cross-agent handoff files, and cleanup policies for context stored outside the prompt.
iris-development 75/100 · Credis/agent-skillsGuides work with the Iris Redis Agent Memory data plane on Redis Cloud, covering session events, long-term memories, store configuration, and memory promotion.
memory-systems 86/100 · Bmuratcankoylan/Agent-Skills-for-Context-EngineeringSupports persistent semantic memory in agent systems, including cross-session knowledge retention, entity tracking, graph or vector retrieval, memory consolidation, and memory benchmark selection.
slicing-code-context 89/100 · Btrailofbits/skillsSelects bounded, graph-informed source slices with Trailmark and delegates focused code analysis or patch-proposal work to a smaller subagent.
swarmclaw 74/100 · Cswarmclawai/swarmclawTeaches agents running on SwarmClaw how to use its 6 primitive tools, persistent memory, dreaming, delegation, connectors, credentials, and the skill system.
codebase-memory-mcp 77/100 · Cgithub/awesome-copilotUse when exploring unfamiliar code, mapping architecture, finding symbols or relationships, tracing callers, callees, data flow or dependencies…
context-engineering 64/100 · DNeoLabHQ/context-engineering-kitUnderstand the components, mechanics, and constraints of context in agent systems. Use when writing, editing, or optimizing commands, skills, or…
context-engineering-advisor 68/100 · Ddeanpeters/Product-Manager-SkillsDiagnose context stuffing vs. context engineering. Use when an AI workflow feels bloated, brittle, or hard to steer reliably.
context-engineering-collection 76/100 · Cmuratcankoylan/Agent-Skills-for-Context-EngineeringA comprehensive collection of Agent Skills for context engineering, harness engineering, multi-agent architectures, and production agent systems…
deep-agents-memory 77/100 · Clangchain-ai/langchain-skillsINVOKE THIS SKILL when your Deep Agent needs memory, persistence, or filesystem access. Covers StateBackend (ephemeral), StoreBackend (persistent)…
half-clone 64/100 · Dykdojo/claude-code-tipsClone the later half of the current conversation, discarding earlier context to reduce token usage while preserving recent work.
handoff 60/100 · Dmattpocock/skillsCompact the current conversation into a handoff document for another agent to pick up.
handoff 62/100 · Dykdojo/claude-code-tipsWrite or update a handoff document so the next agent with fresh context can continue this work.
hivemind-memory 72/100 · Cactiveloopai/hivemindGlobal team and org memory powered by Activeloop. ALWAYS check BOTH built-in memory AND Hivemind memory when recalling information.
integrate-context-matic 77/100 · Cgithub/awesome-copilotDiscovers and integrates third-party APIs using the context-matic MCP server. Uses `fetch_api` to find available API SDKs, `ask` for integration…
latent-briefing 87/100 · Bmuratcankoylan/Agent-Skills-for-Context-EngineeringThis skill should be used when the user asks to "share memory between agents", "KV cache compaction for multi-agent", "orchestrator worker context"…
long-context 69/100 · DOrchestra-Research/AI-Research-SKILLsExtend context windows of transformer models using RoPE, YaRN, ALiBi, and position interpolation techniques. Use when processing long documents…
memorize 66/100 · DNeoLabHQ/context-engineering-kitCurates insights from reflections and critiques into CLAUDE.md using Agentic Context Engineering
mini-context-graph 74/100 · Cgithub/awesome-copilotA persistent, compounding knowledge base combining Karpathy's LLM Wiki pattern with a structured knowledge graph. Ingest documents once — the LLM…
nemo-rl-session-memory 82/100 · BNVIDIA/skillsManage durable working-session memory for coding agents. Use when a user asks to preserve or recover agent context across disconnects, VS Code…
onboard-context-matic 84/100 · Bgithub/awesome-copilotInteractive onboarding tour for the context-matic MCP server. Walks the user through what the server does, shows all available APIs, lets them pick…
pinecone-rag 84/100 · Bgithub/awesome-copilotBuild production RAG pipelines and persistent agent memory using Pinecone as the vector database backend. ALWAYS USE THIS SKILL when the user…
quarter-clone 64/100 · Dykdojo/claude-code-tipsClone the last quarter of the current conversation, discarding earlier context to reduce token usage while preserving recent work.
self-managed-context 79/100 · Cmuratcankoylan/Agent-Skills-for-Context-EngineeringThis skill should be used when a model gets read-write control over its own live context window instead of a harness-scheduled compaction policy…

How to choose context engineering skills

Start with a method skill if sessions drift or run out of room. The muratcankoylan context-engineering collection covers fundamentals, compression, degradation and filesystem context as separate skills you can install together.

Memory backends are a bigger commitment. Hivemind, Iris on Redis Cloud and Deep Agents memory each store data in a service you configure, so check the environment variables under Before you install and decide what is allowed to persist.

Handoff and clone skills (handoff, half-clone, quarter-clone) are the lightest option. They write or trim context inside your current tool with no service behind them, which makes them easy to try on one long task.

MCP Servers 82Subagents and Multi-Agent Orchestration 40Agent Tracing and Observability 41AI Agent Builders 56Codex, Cursor and Coding Agents 23RAG and Retrieval 32Claude Code Setup and Hooks 31Fine-Tuning and Model Training 127

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