templates

templates is a skill for Claude Code, Codex from visa/visa-vulnerability-agentic-harness. It costs 167 tokens per session (1,861 once invoked), scanned A, original, no licence file.

A security checker for finding stored and reflected cross-site scripting (XSS) in server-rendered templates. XSS is injected browser code that can run when someone views a page.

In plain words
What is it for?
Use it to inspect templates written with engines such as Jinja2, Django, Handlebars, ERB, Vue, React, Razor, and Go templates.
Why use it?
It helps identify unsafe template features that allow untrusted content to become executable page code.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to inspect templates written with engines such as Jinja2, Django, Handlebars, ERB, Vue, React, Razor, and Go templates.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/visa/visa-vulnerability-agentic-harness/templates
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 visa/visa-vulnerability-agentic-harness --skill templates
Clone the repo
git clone --depth 1 https://github.com/visa/visa-vulnerability-agentic-harness

Made for: Claude Code, Codex.

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 templates

README.md
[![agentmods](https://agentmods.dev/badge/skills/visa/visa-vulnerability-agentic-harness/templates/github.svg)](https://agentmods.dev/skills/visa/visa-vulnerability-agentic-harness/templates)
Your own site
<a href="https://agentmods.dev/skills/visa/visa-vulnerability-agentic-harness/templates"><img src="https://agentmods.dev/badge/skills/visa/visa-vulnerability-agentic-harness/templates/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 templates

Your own site · 80×15
<a href="https://agentmods.dev/skills/visa/visa-vulnerability-agentic-harness/templates"><img src="https://agentmods.dev/badge/skills/visa/visa-vulnerability-agentic-harness/templates.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 167 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,861 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 $0.00167 $0.01861
Opus 5.5 $0.00067 $0.00744
Sonnet 5.5 $0.00033 $0.00372
Haiku 4.5 $0.00017 $0.00186

Measured 17d ago against content hash b87578a896c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

templates 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 17d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (probe.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

vvaharness/skills/templates/SKILL.md · 126 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

Files

What ships with it

1 file 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.

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. 17d ago First seen · 126 lines · 167 tokens per session scan A b87578a896c8

Subscribe to this mod's changes

templates is a skill published in the GitHub repository visa/visa-vulnerability-agentic-harness (3,010 stars, last pushed 5d ago), with no licence file. It adds 167 tokens to every session and 1,861 once invoked, about $0.0007 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 2026-10-10.

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