Context Engineering Skill
Routes to the appropriate sub-skill from Koylan's Agent-Skills-for-Context-Engineering collection, located at:
references/context-engineering-skills/skills/<sub-skill>/SKILL.md
Setup
No setup required. This skill uses GitHub raw URLs as the primary method to fetch sub-skill documentation.
Sub-skill SKILL.md files are loaded directly from GitHub:
https://raw.githubusercontent.com/muratcankoylan/Agent-Skills-for-Context-Engineering/main/skills/<sub-skill>/SKILL.md
Example: For context-optimization, use:
https://raw.githubusercontent.com/muratcankoylan/Agent-Skills-for-Context-Engineering/main/skills/context-optimization/SKILL.md
Optional Enhancement (Offline Use): For offline access or faster local reads, you can optionally initialize the git submodule:
git submodule update --init
This will populate the references/context-engineering-skills/ directory locally. When the local directory exists, the skill loader will prefer local files over GitHub fetches.
Sub-Skill Routing Table
Match the user's task to one sub-skill and read its SKILL.md before proceeding. Load additional sub-skills only if the task spans multiple domains.
| Task / trigger phrase | Sub-skill directory |
|---|---|
| "optimize context", reduce token costs, KV-cache, context budgeting | context-optimization |
| "context compression", summarize history, compaction, long sessions | context-compression |
| "design multi-agent", supervisor pattern, swarm architecture, agent handoffs | multi-agent-patterns |
| "implement memory", memory frameworks, Mem0, Zep, Letta, vector RAG | memory-systems |
| "offload context to files", filesystem memory, scratch pads, dynamic discovery | filesystem-context |
| "debug agent failure", lost-in-middle, context poisoning, degradation patterns | context-degradation |
| "build agent tools", tool descriptions, MCP tools, tool consolidation | tool-design |
| "evaluate agent", LLM-as-judge, test framework, quality gates | evaluation |
| Advanced evaluation: rubrics, pairwise comparison, position bias | advanced-evaluation |
| "understand context", context windows, attention mechanics, fundamentals | context-fundamentals |
| "build background agent", sandboxed execution, hosted coding agent | hosted-agents |
| "implement BDI", mental state modeling, belief-desire-intention | bdi-mental-states |
| "start an LLM project", batch pipeline, task-model fit, project structure | project-development |
How to Load a Sub-Skill
- Identify the best-matching row above.
- Check if the local sub-skill SKILL.md exists:
references/context-engineering-skills/skills/<sub-skill>/SKILL.md- If the file exists locally: Read it directly.
- If the file does NOT exist (e.g., submodule not initialized): Fetch from GitHub:
https://raw.githubusercontent.com/muratcankoylan/Agent-Skills-for-Context-Engineering/main/skills/<sub-skill>/SKILL.md
- Follow the instructions in that file. Most sub-skills have a
references/directory with detailed patterns — read those files only when the relevant pattern is needed (progressive disclosure). - If the user's task spans two sub-skills (e.g., memory + multi-agent), read both SKILL.md files before responding.
Progressive Disclosure
Sub-skill SKILL.md files are compact routing documents. The deep content lives
in each sub-skill's references/ folder. Load reference files only when the
specific topic is active — do not bulk-load all references upfront.
Example:
references/context-engineering-skills/skills/context-optimization/references/
Read individual reference files from that directory only when the matching pattern is needed.