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.
npx skills add DevExpress/agent-skills --skill devexpress-xaf-securitygit clone --depth 1 https://github.com/DevExpress/agent-skillsWrote 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.
[](https://agentmods.dev/skills/devexpress/agent-skills/devexpress-xaf-security)<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-xaf-security"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-xaf-security/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.
<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-xaf-security"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-xaf-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00096 | $0.04143 |
| Opus 5.5 | $0.00038 | $0.01657 |
| Sonnet 5.5 | $0.00019 | $0.00829 |
| Haiku 4.5 | $0.00010 | $0.00414 |
Grade A, and why
devexpress-xaf-security 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.
How it starts
The opening of the file, as written. The whole thing — 382 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DevExpress XAF — Security System
The XAF Security System provides role-based access control with type-, object-, and member-level permissions, multiple authentication methods, and audit trail capabilities. EF Core is the recommended ORM; all examples default to EF Core patterns. XPO equivalents are noted where they differ.
Prerequisites & Installation
NuGet Packages
| Package | Purpose | Project |
|---|---|---|
DevExpress.ExpressApp.Security |
SecurityStrategy, SecurityModule, authentication providers, IsGrantedExtensions, SecurityOperations |
MySolution.Module |
DevExpress.Persistent.BaseImpl.EF |
PermissionPolicyRole, PermissionPolicyUser, ApplicationUser, ApplicationUserLoginInfo (EF Core) |
MySolution.Module |
DevExpress.Persistent.BaseImpl.Xpo |
PermissionPolicyRole, PermissionPolicyUser (XPO) |
MySolution.Module (XPO only) |
DevExpress.ExpressApp.EFCore |
Secured EF Core object space (.AddSecuredEFCore()) |
MySolution.Blazor.Server / MySolution.Win |
DevExpress.ExpressApp.Xpo |
Secured XPO object space (.AddSecuredXpo()) |
MySolution.Blazor.Server / MySolution.Win (XPO only) |
Security Registration
Blazor — MySolution.Blazor.Server\Startup.cs:
using DevExpress.ExpressApp.Security;
using DevExpress.Persistent.BaseImpl.EF.PermissionPolicy;
services.AddXaf(Configuration, builder => {
builder.ObjectSpaceProviders
.AddSecuredEFCore() // Use instead of .AddEFCore() when security is enabled
.WithDbContext<MySolutionEFCoreDbContext>((serviceProvider, options) => {
options.UseSqlServer(connectionString);
options.UseChangeTrackingProxies();
options.UseObjectSpaceLinkProxies();
})
.AddNonPersistent();
builder.Security
.UseIntegratedMode(options => {
options.RoleType = typeof(PermissionPolicyRole);
options.UserType = typeof(ApplicationUser);
options.UserLoginInfoType = typeof(ApplicationUserLoginInfo);
})
.AddPasswordAuthentication(options => {
options.IsSupportChangePassword = true;
});
});
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 10d ago First seen · 382 lines · 96 tokens per session scan A 3ea6695b769c
devexpress-xaf-security is a skill published in the GitHub repository DevExpress/agent-skills (66 stars, last pushed 11d ago), licensed MIT. It adds 96 tokens to every session and 4,143 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-10-20.
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