Eugene

[Eugene @dukog]

https://t.co/EoUJmWirev

[Cameron R. Wolfe, Ph.D. @cwolferesearch]

What is an agent? The definition can be pretty simple: it’s just an LLM that runs within an agentic loop.

To make this definition more concrete, an agent-system has a few high-level components:

1. The LLM backbone.
2. Instructions.
3. Tools.
4. The environment.

Given an initial instruction / specification, these components run in an agentic loop where the LLM generates output, executes tool calls, ingests feedback from the environment, and repeats.

At each step, termination conditions are checked to see if the loop should continue. For example, we can define a maximum number of steps, run tests to determine if the problem is solved, or have the LLM output a termination token. Together, all of these components form an agent harness, which controls orchestration / integration details of the LLM.

(1) LLM backbone. This is just a standard LLM that has been trained to operate in an agentic context. Specifically, the LLM must be able to work well within the provided harness, which requires advanced instruction following, tool calling, and reasoning capabilities. Although any LLM can be used as an agent backbone, we often benefit from using a reasoning model.

(2) Instructions provide the information necessary to solve a problem to the agent, as well as context that helps the agent to approach a problem correctly. Examples of information to put in the instructions include relevant domain info (e.g., from guidelines or policy documents) or how to solve the problem (e.g., break into smaller parts). We want instructions to be detailed enough to reliably guide agent behavior but not so detailed that they become brittle / hard to maintain.

(3) Tools. Agents use tools (e.g., APIs, CLIs, or MCP servers) to interact with the external environment. Tool calls can be represented directly in the LLM’s token stream by creating a set of special tool calling token; e.g., Qwen-3 uses the following tags:

- <tools> … </tools> for tool definition / specification
- <tool_call> {params} </tool_call> for tool calls.
- <tool_response> … </tool_response> for tool responses / observations.

(4) Environment. Tools mediate an agent’s access to the environment. The environment is stateful, and tool calls may result in environment state changes. Environment dynamics are encoded in tool calling logic–arbitrary environmental rules can be created via tool definitions.

Additional details. Agent harnesses are a rapidly evolving area of research—new ideas and components are introduced every day. Additional harness components not covered above include:

1. Context management controls how information is presented to the agent. For example, long-running tasks may use compaction to summarize prior steps or truncate feedback from the environment (e.g., error messages) to avoid overloading the LLM with too much context; see above.
2. Memory can allow the agent to persist useful context within a long-running task or even across different sessions and tasks. Conceptually, this memory system becomes another aspect of the environment—it is stateful and can be accessed via tool calls by the agent.

[Claude @claudeai]

In Claude Code, Opus 4.8 makes calls like an experienced engineer without needing constant check-ins.

It stays on track across long-running sessions and follows work through in your repo, so you can hand off a feature or a bug sweep while you focus on what's next.

[Santiago @svpino]

Here is a repository with 30 open-source, end-to-end agent examples.

These are very sophisticated workflows using Google ADK. Their architecture diagrams alone are worth gold.

• Full documentation
• Source code
• Ability to one-click deploy

Video and links below.

[Eugene @dukog]

@RWApodcast Russian language doesn't mean anyone wants to associate with your dumb ass country. Half of South America speaks Spanish. No one in the education world thinks of them as Spanish.

[Eugene @dukog]

@MasterMaliq One’s smiling like she’s at brunch with Jesus, the other looks like she’s smuggling three kids and a goat under a Hefty bag.

[Eugene @dukog]

@RWApodcast In 50 year it can even get to the border villages of Kiev.👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻

#Чума

[Eugene @dukog]

@krewatikoo Nothing wrong with Indians it's the nutty Muhammadens!

[Eugene @dukog]

@RWApodcast What happened to Wagner? Where are they now?

[Eugene @dukog]

@WallStreetMav @grok show me a similar image, but instead of corruption, do easy of doing business for small companies

[Eugene @dukog]

@erikfinman China may not be like U.S., but I doubt they want nukes in the hands of bearded lunatics.

[Eugene @dukog]

@ricwe123 Putin's strategy is to always appear as the “reasonable” choice—but only after removing all actually reasonable options. By framing every decision as a choice between nuclear war or Russia’s collapse, he ensures his path looks like the only sane one. Plenty of other choices...

[Eugene @dukog]

@MYantsen @ricwe123 @barnes_law @grok I'm sorry I don't know of any country called Soviet?
Was the treat to hand over the nukes made with the soviet union?

I think you should change your name to dumb-ass for bring irrelevant point.

[Eugene @dukog]

@ricwe123 @barnes_law @grok F off with your treaties. They are not worth the paper they were written in. Based on treaties, Ukraine, for giving up its nukes, was going to be protected by US, UK, and RU.

[Eugene @dukog]

@ricwe123 @barnes_law @grok Are these the same airplanes that are sending fob booms daily into ukraine?

[Eugene @dukog]

@ElonMuskAOC Would love to get one of these

[Eugene @dukog]

@Erdayastronaut Has anyone seriously explored a fish-scale-like overlapping heat shield for spacecraft reentry? Seems like it could offer flexibility &amp; damage resistance, but what are the challenges? Would love to hear your thoughts! #SpaceX #HeatShield 🔥🛡️

[Dr. Maalouf ‏ @realMaalouf]

“We started a campaign to burn the Quran to honor the memory of the hero Salwan Momika.”

[Eugene @dukog]

I've been playing a game on grok.
Prompt: Let's play a game. Give me 3 fake quran verses and 1 real. Let me guess which one is the real what is fake.
if you are in doubt what We have sent down upon Our Servant Muhammad, then produce a surah the like thereof... 2:23
#grokGames

[Eugene @dukog]

@RWApodcast No Russian involvement—just the brave soldiers of the Free Donetsk Army who stood firm and successfully pushed out the Ukrainian forces. 😂 #DonetskAirport #UkraineRussiaWar