~ 17 min read
The Practical Second Brain: Building an LLM-Operated Markdown Knowledge Graph
A hands-on guide to the files, schemas, workflows, governance, and maintenance routines behind an AI-assisted second brain.
Tag: ai agents
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~ 16 min readBuilding a Second Brain with LLMs and AI Agents
How a plain-Markdown knowledge graph becomes a durable context layer, operating system, and compounding productivity tool for AI-assisted work.
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~ 12 min readInvisible Unicode Can Hijack Gemini CLI Agent Skills
I disclosed a Gemini CLI prompt injection where invisible Unicode tag characters in SKILL.md caused the agent to run a hidden command. Google closed the report as out of scope because the workspace was trusted and YOLO mode was enabled.
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~ 16 min readIs Prompt Injection an Unsolvable Problem in AI?
Prompt injection is not a bug you patch but an architectural limit baked into how LLMs process language. This post traces the problem from Gödel and Hofstadter to modern jailbreaks, agent skill supply chains, and why defenders must shift from elimination to survivability.
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~ 14 min readManaging AI Agents and Skills with APM
Microsoft's Agent Package Manager brings package.json-style manifests and lockfiles to Claude Skills, MCP servers, and other agent artifacts, with hands-on recipes and sharp edges we hit in practice (collections path, meta-packages, security).