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Filter by use case, model, framework, and cost. Cost is only filled in when the source states it — most say “not stated.”
33 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
Coding agent
Apr 9, 2026
Factory Missions
A system for running large software projects as many focused agent runs — orchestrator, workers, and independent validators — rather than one long session that overflows its context. The post walks through a real mission that produced a Slack clone
Multi-agent orchestration
Apr 7, 2026
A rolled-your-own Node.js multi-agent setup (HN)
A production multi-agent system rolled by the author on Node.js, with agents as Express endpoints that can be chained or run in parallel
Coding agent
Apr 7, 2026
LangGraph plus CLI coding agents in git worktrees (HN)
A production multi-agent coding setup in which specialized CLI agents run in parallel, each in its own git worktree, under a central coordinator
Sales
Apr 6, 2026
Production sales agents with thread-as-context (HN)
A production sales context: multi-turn conversations with real prospects who may reply days apart, covering research, drafting, sending, and parsing replies
General production agent
Apr 5, 2026
A custom agent abstraction with Wayfound in production (HN)
A production agent system run from webhooks and cron, with a lightweight in-house abstraction for running and managing agents — 'ironically managed by an agent'
General production agent
Apr 5, 2026
HuntYourTribe on the AGNO framework (HN)
HuntYourTribe, a production system the author says has been running on the AGNO framework 'for quite sometime'
Coding agent
Feb 18, 2026
Ramp Inspect background coding agent
An internal background coding agent, used by engineers, product managers, and designers at Ramp, that the company says now starts roughly half of all merged pull requests across frontend and backend repos
Coding agent
Jan 14, 2026
GitHub Copilot's cross-agent memory
A shared memory system so GitHub Copilot agents — starting with the coding agent, CLI, and code review — can remember repository knowledge across sessions and learn from one another
SRE / incident response
Jan 11, 2026
Datadog Bits Investigation
An AI SRE agent that automatically investigates incidents and monitor alerts, reasons over live telemetry, and produces audit-ready root-cause analyses
Coding agent
Jan 6, 2026
Vercel v0 coding agent
A coding agent that generates working websites in v0's preview, optimized for the rate of successful (error-free, non-blank) generations
Fintech / internal platform
2026
Block KGoose (Money Bot, Manager Bot, and G2)
A shared AI agent platform at Block that powers Money Bot (a Cash App financial assistant for peer-to-peer payments), Manager Bot (a Square merchant assistant), and G2 (an internal productivity platform)
Customer support
Nov 19, 2025
Decagon's fine-tuned specialist agent models
Customer-facing conversational and voice agents, where Decagon uses a network of specialized models rather than one monolithic model, including for real-time voice where latency matters
Multi-agent orchestration
Oct 27, 2025
A policy engine plus unified traces across LangGraph and CrewAI (HN)
A multi-player production multi-agent system that mixes frameworks (LangGraph and CrewAI) and enforces what agents can and cannot do before tool calls run
Recruiting
Oct 20, 2025
LinkedIn Hiring Assistant
An AI agent for recruiters that sources, evaluates, and engages candidates across 1.2+ billion LinkedIn profiles, including long-running background pipeline work
Enterprise research
Sep 28, 2025
Grid Dynamics deep-research agent (Fortune 500 manufacturer)
Deep research across a Fortune 500 manufacturer's internal databases, shared drives, and local repositories, expanding to the open web with citations when internal data is not enough, for teams at 100+ plants
E-commerce assistant
Aug 25, 2025
Shopify Sidekick
An AI assistant that helps merchants manage stores through natural language — querying customer segments, writing SEO descriptions, filling product forms, and navigating admin interfaces
E-commerce analytics
Aug 14, 2025
LangGraph ecommerce analyst with daily reports (HN)
An AI ecommerce analyst with a report-builder mode and a chatbot: it consumes API data and visitor sessions, builds a large report, and compresses it into actionable insights for online store owners. The report runs once a day per customer.
Customer support
Aug 7, 2025
Intercom Fin
A customer-support AI agent (chat, and in later work email and voice) that Intercom says resolves up to 70% of customers' conversations, with a 99.8% monthly uptime SLA
Research
Jun 12, 2025
Anthropic's multi-agent Research system
Open-ended research across the web, Google Workspace, and other integrations for Claude's Research feature
Enterprise agent platform
May 28, 2025
Dust's Temporal-backed agent platform
A horizontal enterprise agent platform whose agents live in a company's existing tools — Slack, Notion, GitHub, Confluence, Salesforce, and more — and run real workflows such as commenting on pull requests from a design doc, filing a Slack bug as a ticket, and a Tracker product that proposes updates to stale documents and even to agents' own prompts
AI product infrastructure
Mar 16, 2025
An anonymous startup's production AI infrastructure (HN)
Production AI infrastructure at a relatively small startup with a few thousand monthly active users, covering chat, transcription, image generation, embeddings, RAG, and user-facing tool integrations