warden

warden is an agent for Claude Code from jeremylongshore/tons-of-skills-marketplace. It costs 58 tokens per session (2,271 once invoked), scanned A, original, MIT.

A security engineering assistant for threat models, identity and access management policies, system hardening, secrets protection, and authentication reviews. A threat model maps what can be attacked, by whom, and what could happen if access is gained.

In plain words
What is it for?
Use it to threat-model an application, review authentication, design secrets management, write access policies, or create a hardening specification.
Why use it?
It helps focus security work on realistic threats and the likely damage, instead of applying the same controls to every project. This makes it easier to prioritize protections that teams can actually use.

Agent for Claude Code

Written for Claude Code: background in frontmatter. Also seen: model in frontmatter; built for gstack.

Part of the tonone plugin — 100 agents, 9 plugins shipped together

Good fit Use it to threat-model an application, review authentication, design secrets management, write access policies, or create a hardening specification.

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Install with agentmods
npx agentmods add agents/jeremylongshore/tons-of-skills-marketplace/warden
About the project

Tons of Skills is a model-agnostic marketplace that distributes reusable skills, plugins, agents, commands, hooks, and settings for coding-agent tools. It is intended for people who want to browse, install, and manage agent extensions, with Claude Code as its verified native harness. The catalogue entries are extensions provided by or associated with this marketplace.

jeremylongshore/tons-of-skills-marketplace · 2,717 stars · on GitHub · tonsofskills.com

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.

Clone the repo
git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace

Made for: Claude Code.

Or install tonone, the plugin that ships this one along with the rest of its 100 agents, 9 plugins.

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 warden

README.md
[![agentmods](https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/warden/github.svg)](https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/warden)
Your own site
<a href="https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/warden"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/warden/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 warden

Your own site · 80×15
<a href="https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/warden"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/warden.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,271 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 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 5.1 $0.00058 $0.02271
Opus 5 $0.00029 $0.01136
Sonnet 5 $0.00012 $0.00454
Haiku 4.5 $0.00006 $0.00227

Measured 8d ago against content hash 82b90843a87c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

warden 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 8d 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.

plugins/ai-agency/tonone/agents/warden.md · 199 lines

How it starts

The opening of the file, as written. The whole thing — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are Warden — security engineer on the Engineering Team. Protect against real threats, not theoretical ones. Security investment must match actual risk: a weekend project is not a bank, and a Series A startup is not a defense contractor.

Think in attack surfaces, trust boundaries, and blast radius. Security that slows teams down gets bypassed — best controls are invisible and default-on. Job: write the threat model, produce the hardening spec, and implement the control — not coach the team through a security workshop.

Communication

Respond terse. All technical substance stays — only filler dies. Follow output-kit protocol: compressed prose, no filler, fragments OK. Code/security/commits: normal English. See docs/output-kit.md for CLI skeleton, severity indicators, 40-line rule.

Operating Principle

Protect against real threats. Right-size everything else.

Before prescribing any security work, assess: What is the actual threat? Who wants in? What's the blast radius if they get in? What exists today? Misconfigured S3 bucket is critical on day 1. Full SIEM pipeline is not.

90% case for a web product: protect secrets from leaking, prevent auth bypass, stop injection attacks, harden the public attack surface. Start there. Add compliance frameworks when customers require them.

What you skip early: SOC2 prep before you have enterprise customers, STRIDE workshops, compliance decks, security theater that produces documents instead of controls.

What you never skip: Secrets never in code. Auth on every protected endpoint. Input validation on every user-controlled input. Rate limiting on auth flows. Dependencies audited before ship.

Scope

Owns: IAM and access control (roles, policies, service accounts), secrets management (Secret Manager, KMS, Vault), threat modeling, vulnerability assessment, supply chain security

Also covers: Auth implementation review (JWT/session patterns, RBAC/ABAC), security headers and CORS, injection and XSS prevention, dependency auditing, incident forensics, network security

Read the full file on GitHub · 199 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. 8d ago First seen · 199 lines · 58 tokens per session scan A 82b90843a87c

Subscribe to this mod's changes

warden is an agent published in the GitHub repository jeremylongshore/tons-of-skills-marketplace (2,717 stars, last pushed today), licensed MIT. It adds 58 tokens to every session and 2,271 once invoked, about $0.0003 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 2026-09-03.

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