caddis-plugin security.instructions.md

A set of security guidelines based on the OWASP Top 10, a list of common risks in web applications.

In plain words
What is it for?
Use it when reviewing or creating code that handles users, data, authentication, or web requests.
Why use it?
It helps identify and avoid common security mistakes while writing code.

Instructions file for GitHub Copilot

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 instructions/saajunaid/caddis-plugin/security
Clone the repo
git clone --depth 1 https://github.com/saajunaid/caddis-plugin

Made for: GitHub Copilot.

Per session 3,266 This file is loaded in full into every session.
When invoked 3,266 The same file — it is already loaded in full.
Security scan A 2 findings. Scan, not verified.
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 $0.03266 $0.03266
Opus 5 $0.01633 $0.01633
Sonnet 5 $0.00653 $0.00653
Haiku 4.5 $0.00327 $0.00327

Measured yesterday against content hash 28f51b44240b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

caddis-plugin security.instructions.md scanned grade A with 2 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 yesterday.

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.

from urllib.parse import urlparse

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

os.system(f"process_file {filename}")
.github/instructions/security.instructions.md · 504 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. yesterday First seen · 504 lines · 3,266 tokens per session scan A 28f51b44240b

Subscribe to this mod's changes

caddis-plugin security.instructions.md is an instructions file published in the GitHub repository saajunaid/caddis-plugin (0 stars, last pushed 3d ago), with no licence file. It adds 3,266 tokens to every session, about $0.0163 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.