create-and-run-durable-agent

A tutorial for building a stateful AI agent with Azure Functions and Microsoft's Durable Task extension. Azure Functions runs code in the cloud, while a durable agent can retain conversation history between interactions.

In plain words
What is it for?
Use it to create and run a .NET agent application, expose its built-in HTTP endpoints, and monitor it locally or in Azure with the Durable Task Scheduler.
Why use it?
It shows how to host an agent with managed state and monitoring without having to manage all of the supporting infrastructure yourself.

Agent for Codex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/managedcode/prompterone/create-and-run-durable-agent
Clone the repo
git clone --depth 1 https://github.com/managedcode/PrompterOne

Made for: Codex.

Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,119 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00022 $0.05119
Opus 5 $0.00011 $0.02559
Sonnet 5 $0.00004 $0.01024
Haiku 4.5 $0.00002 $0.00512

Measured 2d ago against content hash cbd4540e557e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

create-and-run-durable-agent scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -i -X POST http://localhost:7071/api/agents/MyDurableAgent/run \
Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.codex/skills/dotnet-microsoft-agent-framework/references/official-docs/tutorials/agents/create-and-run-durable-agent.md · 622 lines

How it starts

The opening of the file, as written. The whole thing — 622 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create and run a durable agent

This tutorial shows you how to create and run a durable AI agent using the durable task extension for Microsoft Agent Framework. You'll build an Azure Functions app that hosts a stateful agent with built-in HTTP endpoints, and learn how to monitor it using the Durable Task Scheduler dashboard.

Durable agents provide serverless hosting with automatic state management, allowing your agents to maintain conversation history across multiple interactions without managing infrastructure.

Prerequisites

Before you begin, ensure you have the following prerequisites:

::: zone pivot="programming-language-csharp"

[!NOTE] Microsoft Agent Framework is supported with all actively supported versions of .NET. For the purposes of this sample, we recommend the .NET 9 SDK or a later version.

::: zone-end

::: zone pivot="programming-language-python"

Read the full file on GitHub · 622 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 622 lines · 22 tokens per session scan A cbd4540e557e

Subscribe to this mod's changes

create-and-run-durable-agent is an agent published in the GitHub repository managedcode/PrompterOne (42 stars, last pushed 3mo ago), licensed MIT. It adds 22 tokens to every session and 5,119 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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