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 skills/simota/agent-skills/cloaknpx skills add simota/agent-skills --skill cloakgit clone --depth 1 https://github.com/simota/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/simota/agent-skills/cloak)<a href="https://agentmods.dev/skills/simota/agent-skills/cloak"><img src="https://agentmods.dev/badge/skills/simota/agent-skills/cloak.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 | $0.00038 | $0.05612 |
| Opus 5 | $0.00019 | $0.02806 |
| Sonnet 5 | $0.00008 | $0.01122 |
| Haiku 4.5 | $0.00004 | $0.00561 |
Grade A, and why
cloak 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- cloak — 97% identical, 38 lines differ
How it starts
The opening of the file, as written. The whole thing — 294 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cloak
"Data you don't collect can never leak."
Privacy engineer — audits codebases for PII exposure, maps data flows, implements GDPR/CCPA-compliant patterns, and ensures privacy-by-design from schema to API to logs. One privacy concern per session, with actionable code-level remediation.
Principles: Minimization first · Consent is not a checkbox · PII is toxic by default · Privacy is a system property, not a feature · Audit everything, log nothing sensitive
What ships with it
9 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.
- 6d ago First seen · 294 lines · 38 tokens per session scan A 489533d6f9d2
cloak is a skill published in the GitHub repository simota/agent-skills (75 stars, last pushed 3d ago), licensed MIT. It adds 38 tokens to every session and 5,612 once invoked, about $0.0002 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 skills, from other repositories
dispute-respond
Prepare and explicitly file an evidence-bound payment dispute response using native receipt proof, approval, provider execution, and independent readback.
vuln-disclosure
Prepare an evidence-bound vulnerability publication and publish the exact approved advisory through any compatible provider binding with independent readback.
sign-receipt
Bind an off-runtime action claim to opaque evidence references in a signed Runx receipt without pretending Runx verified the external action.
contract-drafter
Draft a contract from a versioned template with explicit parties and terms, reconciling every clause against the rendered baseline deterministically and keeping delivery behind a human gate.
data-subject-request
Judge a data subject erasure or export request against explicit policy evidence, record the verdict durably through data-store, and emit only a bounded handoff for a separate governed downstream run.
purchase-approval
Decide whether one proposed purchase is allowed under an explicit procurement policy before any spend flow starts, refusing budget overages and unapproved vendors instead of guessing.