zostaff (@zostaff) on X (Twitter)

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zostaff is a creator on X (Twitter) in the 10K–20K follower range, publishing for AI engineers and developers building stateful, long-horizon agents and coding agents. Profile last checked 2026-06-27.

Observed facts (from the public profile):

Profile bio

can't play me, i wrote the rules

What this creator posts about, and who reads it (AI-inferred)

Recurring topics: Long-horizon agent memory architectures, Stateful agents and MemGPT-style systems, Building coding agents (e.g. Devin-style), Prompt engineering best practices for agents

Audience: AI engineers and developers building stateful, long-horizon agents and coding agents

Provenance: inferred by AI from public content, not stated by the creator — confidence 0.40 · read from 4 recent posts · updated 76 days ago.

Audience read from this creator’s own recent posts, not from platform-declared categories. It is our reading, and it can be wrong.

Recent content samples (what the inference above was drawn from)

This paper completely changed how I think about long-horizon agent memory: Hit the window -> Archive full -> Keep the index -> Dereference -> Train with RL Here is the 5-step blueprint: Hit the window: Truncation and…

Charles Packer, author of MemGPT and founder of Letta, in a workshop on stateful agents: "The transformer inherently is a stateless machine." Not an interview. The man who wrote the paper on agent memory. You think your…

This paper completely changed how I think about context management in coding agents: Grow -> Distract -> Decide in-agent -> Consolidate -> Withdraw history Here is the 5-step blueprint: Grow: The interaction history…

Walden Yan, co-founder of Cognition (the team behind Devin), on building coding agents: "The smart coding model outputs instructions for a human to read. The edit-apply model takes those and spits out the final code.…

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Machine-readable representations

Structured twins of this page for AI and agents — every inferred field carries its source, confidence and freshness.

• /kol/x/zostaff.json
• /kol/x/zostaff.md

AI retrieval activity

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