identityserver-usermanagement

identityserver-usermanagement is a skill for Claude Code from DuendeSoftware/duende-skills. It costs 41 tokens per session (1,472 once invoked), scanned A, original, no licence file.

A guide to connecting user accounts and sign-in methods to Duende IdentityServer, a .NET service for issuing application access tokens. It covers one-time passwords, authenticator codes, passkeys, account storage, user changes, and migration from ASP.NET Identity.

In plain words
What is it for?
Use it to add passwordless login, configure user data storage, manage the user lifecycle, or move users from ASP.NET Identity.
Why use it?
It helps avoid designing authentication storage and account transitions from scratch when setting up user management.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the duende-skills plugin — 24 skills, 2 agents shipped together

Good fit Use it to add passwordless login, configure user data storage, manage the user lifecycle, or move users from ASP.NET Identity.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/duendesoftware/duende-skills/identityserver-usermanagement
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.

Any agent
npx skills add DuendeSoftware/duende-skills --skill identityserver-usermanagement
Clone the repo
git clone --depth 1 https://github.com/DuendeSoftware/duende-skills

Made for: Claude Code.

Or install duende-skills, the plugin that ships this one along with the rest of its 24 skills, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for identityserver-usermanagement

README.md
[![agentmods](https://agentmods.dev/badge/skills/duendesoftware/duende-skills/identityserver-usermanagement/github.svg)](https://agentmods.dev/skills/duendesoftware/duende-skills/identityserver-usermanagement)
Your own site
<a href="https://agentmods.dev/skills/duendesoftware/duende-skills/identityserver-usermanagement"><img src="https://agentmods.dev/badge/skills/duendesoftware/duende-skills/identityserver-usermanagement/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for identityserver-usermanagement

Your own site · 80×15
<a href="https://agentmods.dev/skills/duendesoftware/duende-skills/identityserver-usermanagement"><img src="https://agentmods.dev/badge/skills/duendesoftware/duende-skills/identityserver-usermanagement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,472 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00041 $0.01472
Opus 5 $0.00020 $0.00736
Sonnet 5 $0.00008 $0.00294
Haiku 4.5 $0.00004 $0.00147

Measured 10d ago against content hash f90ece0f1ec3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

identityserver-usermanagement scanned grade A with 0 findings 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 10d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/identityserver-usermanagement/SKILL.md · 173 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 10d ago First seen · 173 lines · 41 tokens per session scan A f90ece0f1ec3

Subscribe to this mod's changes

identityserver-usermanagement is a skill published in the GitHub repository DuendeSoftware/duende-skills (9 stars, last pushed yesterday), with no licence file. It adds 41 tokens to every session and 1,472 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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