Sim is an open-source workspace to build agentic workflows. Connect your AI agents and workflows to 1,000+ integrations and LLMs.
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Quick question: when an agent workflow fails in production, how do you actually debug it? Like, is there a trace/replay view, or are you digging through logs across the different integrations it touched? Anyways, congrats on the launch!!
@mshen316 thank you! Great question. You can see the full trace span then launch a debug agent on Sim that finds the issue with your workflow, solves the problem, then re-deploys your agent.
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Congrats Emir! Most agent builders just throw LLM calls at everything and the bill quietly becomes a problem at scale. How does Sim decide which steps get deterministic code versus an LLM call, is that the builder's call or does Sim suggest it
@jasnoor_singh_oberoi great question! Sim will suggest using deterministic processes for steps that don't need to be brought into an agent.
When chatting with Sim, it will build everything for you, but the way we think about it is if that step requires some nuance then you should bring an agent in.
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@emirkarabeg That makes sense , using agents only where nuance is actually needed keeps the workflow lean and the costs predictable. Curious whether Sim tracks cost per workflow run over time so builders can see exactly which steps are eating the most tokens and optimize from there.
@jasnoor_singh_oberoi there's something called a "Sim" block so you can set up a workflow that triggers on every run and then keep track of the cost in tables or elsewhere.
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How does the pricing work for an open-source project, especially once you start scaling beyond a handful of agents and hitting those 1,000+ integrations?
@hanifekrkir2f it's free forever! Open source Apache 2.0.
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Played around with it for an hour and honestly the drag-and-drop agent builder feels really snappy, hooked up a Slack-to-Notion workflow in like ten minutes without writing code.
@james_carter35 great question. In logs, you're able to see the full trace span from a workflow run. If you error in that run, there's a debug from logs where the Sim agent can identify what went wrong and triage/fix the problem.
Open source is the reason I'd actually build a workflow on this instead of renting one that vanishes in a year. When a step in the middle of a run fails, does Sim let me resume from that step or does the whole thing start over? Re-running everything from the top is what made me drop the last couple orchestration tools I tried.
@chielephant great question. You can resume from a point in time in a workflow. If your workflow fails at point C, instead of re-running from point A, you can resume from C onwards.
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connected my OpenAI agent to Slack and Notion in like 10 minutes, the drag and drop flow editor feels really natural
Congrats Emir! Your origin story is literally my job description. I prompt Claude to build automations for a 40-person company and the stack sprawl is real, so one workspace with shared context is the right pitch. My question: since 90% of usage is now chat-built, what happens when an agent needs to do something risky like sending a Slack message or an email? Can I set approval gates on specific nodes so a human signs off before it fires? That’s the line between a demo and something I’d let loose on production.
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Quick question: when an agent workflow fails in production, how do you actually debug it? Like, is there a trace/replay view, or are you digging through logs across the different integrations it touched? Anyways, congrats on the launch!!
Sim
@mshen316 thank you! Great question. You can see the full trace span then launch a debug agent on Sim that finds the issue with your workflow, solves the problem, then re-deploys your agent.
Congrats Emir!
Most agent builders just throw LLM calls at everything and the bill quietly becomes a problem at scale. How does Sim decide which steps get deterministic code versus an LLM call, is that the builder's call or does Sim suggest it
Sim
@jasnoor_singh_oberoi great question! Sim will suggest using deterministic processes for steps that don't need to be brought into an agent.
When chatting with Sim, it will build everything for you, but the way we think about it is if that step requires some nuance then you should bring an agent in.
@emirkarabeg That makes sense , using agents only where nuance is actually needed keeps the workflow lean and the costs predictable. Curious whether Sim tracks cost per workflow run over time so builders can see exactly which steps are eating the most tokens and optimize from there.
Sim
@jasnoor_singh_oberoi there's something called a "Sim" block so you can set up a workflow that triggers on every run and then keep track of the cost in tables or elsewhere.
How does the pricing work for an open-source project, especially once you start scaling beyond a handful of agents and hitting those 1,000+ integrations?
Sim
@hanifekrkir2f it's free forever! Open source Apache 2.0.
Played around with it for an hour and honestly the drag-and-drop agent builder feels really snappy, hooked up a Slack-to-Notion workflow in like ten minutes without writing code.
Sim
@cansel812054 great to hear! Feel free to use the chat agent. It's really powerful and can get you set up in <60s.
i like the focus on production ready AI agents instead of simple demos. how does Sim monitor agent health and recover from failed workflow executions?
Sim
@james_carter35 great question. In logs, you're able to see the full trace span from a workflow run. If you error in that run, there's a debug from logs where the Sim agent can identify what went wrong and triage/fix the problem.
Congratulations
Sim
@madalina_barbu thank you!
Open source is the reason I'd actually build a workflow on this instead of renting one that vanishes in a year. When a step in the middle of a run fails, does Sim let me resume from that step or does the whole thing start over? Re-running everything from the top is what made me drop the last couple orchestration tools I tried.
Sim
@chielephant great question. You can resume from a point in time in a workflow. If your workflow fails at point C, instead of re-running from point A, you can resume from C onwards.
connected my OpenAI agent to Slack and Notion in like 10 minutes, the drag and drop flow editor feels really natural
Sim
@birglcanle9g1q feel free to try out the Sim agent builder! You can build in natural language in <1 minute.
Origami.chat
I use Sim every day, it's fantastic
Sim
@finn_mallery thanks Finn! Legend.
Creatium
Sim
@ridhwikvinod absolutely. You can use the human-in-the-loop node to gate agent actions behind human intervention.