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 agentmods add commands/security-phoenix-demo/security-skills-claude-code/security-0daygit clone --depth 1 https://github.com/Security-Phoenix-demo/security-skills-claude-codeWrote 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/commands/security-phoenix-demo/security-skills-claude-code/security-0day)<a href="https://agentmods.dev/commands/security-phoenix-demo/security-skills-claude-code/security-0day"><img src="https://agentmods.dev/badge/commands/security-phoenix-demo/security-skills-claude-code/security-0day.svg" alt="Measured on agentmods" 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 | $0.00024 | $0.00230 |
| Opus 5 | $0.00012 | $0.00115 |
| Sonnet 5 | $0.00005 | $0.00046 |
| Haiku 4.5 | $0.00002 | $0.00023 |
Grade A, and why
security-0day 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 6d 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.
What it actually says
You are running the 0-Day Vulnerability Scanner skill against the current branch's diff.
Instructions
- Invoke the
0day-scannerskill (file:skills/Security Assessment/0day-scanner/SKILL.md). - Target = git diff between
$ARGUMENTS(defaultmain) andHEAD. - Prefer light mode unless the diff is large (>50 changed files → standard mode).
- Report findings inline with severity, file:line, evidence, and suggested fix.
- If no vulnerabilities are found, say so explicitly and list residual risks worth follow-up.
Scope guard
- Do not modify code. This is a read-only review.
- Do not run the full
security-assessmentskill — that's a different command.
If you cannot determine a base ref or the working tree has no diff, say so and stop.
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.
- 6d ago First seen · 22 lines · 24 tokens per session scan A 3389a56a5fd5
security-0day is a command published in the GitHub repository Security-Phoenix-demo/security-skills-claude-code (69 stars, last pushed 4mo ago), licensed MIT. It adds 24 tokens to every session and 230 once invoked, about $0.0001 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.
Other commands, from other repositories
sdd-init
Initialize SDD context — detects project stack and bootstraps persistence backend.
review-branch
Review the current branch's diff against base by dispatching atomic-reviewer. No orchestration loop, no spec required — pre-flight before /commit pr or /commit merge.
init
Install the formatters this repository needs, with every command visible before it runs.
review-sdk-app
Review and validate a Claude Agent SDK application against best practices.
repo-audit
Audit a codebase (local or remote GitHub/GitLab) against architecture principles and requirements, surfacing drift, risk, and missing decisions.
ui-flow-review
Review menus, HUD, navigation, and player flow from a UX perspective.