A public database
What teams actually run in production.
Real AI agent stacks, taken from public writeups — engineering blogs, HN threads, and first-person posts. Every field comes from the source. If they didn't say the cost, we don't invent one.
Newest
Latest stacks
General production agent
Date not stated
A LangGraph + Langfuse + Claude 4.5 production stack (r/AI_Agents)
A production AI agent stack described by the original poster after about a year and a half of trial and error, with LangGraph orchestration, Claude for structured JSON, and a layered observability setup
Coding agent
Date not stated
Stripe Minions
Unattended end-to-end coding agents at Stripe. Over 1,300 merged pull requests each week are completely minion-produced and human-reviewed, with no human-written code in those PRs
SRE / incident response
Date not stated
Traversal AI SRE investigation agent
Autonomous production-incident investigation: agents reason over a live 'Production World Model' of a customer's systems, narrow candidate signals, and produce a root-cause report while someone is watching an outage
Agent platform / infrastructure
Nov 9, 2026
NVIDIA Agent Substrate
A security-hardened, zero-trust Kubernetes runtime for running sandboxed agents and tools at high density — coding assistants, RL post-training environments, and short-lived GPU sandboxes — now donated to the CNCF Sandbox
Data / ML platform
Oct 18, 2026
Meta's thin orchestrator for data pipeline agents
Automating data column onboarding across Meta recommendation-system pipelines, spanning three code repositories, three programming languages, and up to six pipeline stages
Knowledge work
Oct 18, 2026
Notion Agent (sixth-generation harness)
Knowledge-work agents and Custom Agents inside Notion, including tasks that can now run for more than 24 hours
Coding agent
Sep 28, 2026
Replit Agent (model-directed harness)
Replit's production coding agent, whose core loop decides how hard to think, when to hand work off, and which subagent (and model) should do it
Internal engineering platform
Aug 3, 2026
Duolingo's production agent platform
An internal platform so any Duolingo team can define a production agent once and invoke it from Slack, internal sites, a CLI, or another Temporal workflow. In use for fixing CI failures, addressing code-review comments, and a Slack bot for release managers that investigates crashes and summarizes findings
SaaS / agent platform
May 25, 2026
ODSEA's LangGraph + Next.js + Supabase production stack
A production platform that 'serves thousands of users' and 'processes AI agent workflows 24 hours a day', documented as a set of public architecture decision records
Coding agent
May 14, 2026
The coding harness behind GitHub Copilot in VS Code
The agentic coding experience inside Visual Studio Code: assembling context, exposing and executing tools, and running the agent loop that turns model output into editor actions
Coding agent
Apr 22, 2026
Cognition Devin cloud agents
Cloud software-engineering agents that work unattended across the async gaps of real development — opening a PR, waiting on CI, responding to review, and pushing follow-up commits
Agent platform / infrastructure
Apr 14, 2026
Cloudflare Project Think / Agents SDK
Cloudflare's platform and Agents SDK for building long-running, durable, serverless agents, described as already powering thousands of production agents, with Project Think adding the next set of primitives
Most viewed
People keep coming back to these
General production agent
Date not stated
A LangGraph + Langfuse + Claude 4.5 production stack (r/AI_Agents)
A production AI agent stack described by the original poster after about a year and a half of trial and error, with LangGraph orchestration, Claude for structured JSON, and a layered observability setup
Agent platform / infrastructure
Nov 9, 2026
NVIDIA Agent Substrate
A security-hardened, zero-trust Kubernetes runtime for running sandboxed agents and tools at high density — coding assistants, RL post-training environments, and short-lived GPU sandboxes — now donated to the CNCF Sandbox
Coding agent
Date not stated
Stripe Minions
Unattended end-to-end coding agents at Stripe. Over 1,300 merged pull requests each week are completely minion-produced and human-reviewed, with no human-written code in those PRs
SRE / incident response
Date not stated
Traversal AI SRE investigation agent
Autonomous production-incident investigation: agents reason over a live 'Production World Model' of a customer's systems, narrow candidate signals, and produce a root-cause report while someone is watching an outage
Data / ML platform
Oct 18, 2026
Meta's thin orchestrator for data pipeline agents
Automating data column onboarding across Meta recommendation-system pipelines, spanning three code repositories, three programming languages, and up to six pipeline stages
Knowledge work
Oct 18, 2026
Notion Agent (sixth-generation harness)
Knowledge-work agents and Custom Agents inside Notion, including tasks that can now run for more than 24 hours
Most used
Most used across the database
Across all 33 published stacks
Models
- A small, fast, fine-tuned autofix model trained on real generations1
- Anthropic models1
- Auto (Notion's model router)1
- ChatGPT (via a connected ChatGPT Plus, Pro, or Go account)1
- Claude1
- Claude 4.5 Sonnet1
- Claude Code1
- Claude Opus 4 (lead agent)1
- Claude Sonnet 41
- Claude Sonnet 4 (subagents)1
Frameworks
- LangGraph6
- Temporal5
- Agent Operating Procedures1
- Agent Substrate1
- Agentic loop (custom)1
- AGNO1
- Apache Kafka (prior)1
- Bespoke RAG1
- Blueprints (custom state machines)1
- BullMQ1
Observability
- Datadog4
- Temporal3
- OpenTelemetry2
- AI Command Center (usage dashboards)1
- Custom SQLite tracer (Clearstone)1
- Green flash1
- Internal LLM Gateway1
- Langfuse1
- LangSmith1
- MongoDB (dedicated run-log collection)1
Newsletter
Five stacks, every Tuesday.
One line each, a link to the writeup, and what's showing up most. No recap blogs.