Most people building AI agents don't realize this until it's too late. Your agent's memory isn't a feature. It's your moat. 1. Closed harnes…

Most people building AI agents don't realize this until it's too late. Your agent's memory isn't a feature. It's your moat. 1. Closed harness = they own your memory 2. Switch models → lose all context, preferences, history 3. Proprietary compaction (OpenAI Codex) = encrypted, not portable 4. Open harness = you own the data flywheel My memory lives in markdown files on GitHub. Claude Code reads it. OpenClaw reads it. Not locked to either. Not locked to any platform. I switch tools, swap models - memory stays mine. That's the only way to build.

With closed agent platforms like Claude Managed Agents, your agent's memory belongs to them, not you. It's locked behind their API. Agent in…
Hot take: I can't see any startup building their critical core operations on Claude Managed Agents or any proprietary harness as investable.…
if you don't own your harness, you don't own your memory this is so true. even though Codex is an open source, it generates an encrypted com…
Open Everything 🤝 Own your intelligence 🤝 Builder Choice We’re in the v0.1 of deploying agentic intelligence across the economy. Agents ar…
the real future of the very best vertical products is Model/Harness Choice + Openness easy to deploy infra is nice (great release from Ant) …
For AI agents, when you want every last bit of what is possible, open source is turning out to be the only way

Source: Harrison Chase (X) | 2026-04-12

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