What is paseo-spyware-check?

A read-only security check for a GitHub URL or local code repository before you install, build, or run it. It looks for spyware, malware, risky supply-chain behavior, suspicious install scripts, and attempts to send secrets elsewhere.

Use it to review dependencies and scripts, scan a repository snapshot, inspect findings by severity, and produce a recorded security decision.

It helps you assess unfamiliar code before running it, while keeping the inspection separate from the repository's own install and build steps.

paseo-spyware-check — Skill for Claude Code and Codex by wilgon456

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 wilgon456/Paseobility --skill paseo-spyware-check

Clone the repo

git clone --depth 1 https://github.com/wilgon456/Paseobility

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/wilgon456/paseobility/paseo-spyware-check/github.svg)](https://agentmods.dev/skills/wilgon456/paseobility/paseo-spyware-check)

Your own site

<a href="https://agentmods.dev/skills/wilgon456/paseobility/paseo-spyware-check"><img src="https://agentmods.dev/badge/skills/wilgon456/paseobility/paseo-spyware-check/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/wilgon456/paseobility/paseo-spyware-check"><img src="https://agentmods.dev/badge/skills/wilgon456/paseobility/paseo-spyware-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 144 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,638 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 3 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.

Model	Per session	Once invoked
Fable 5.1	$0.00144	$0.02638
Opus 5	$0.00072	$0.01319
Sonnet 5	$0.00029	$0.00528
Haiku 4.5	$0.00014	$0.00264

Measured 10d ago against content hash 20d431e8e470, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

paseo-spyware-check scanned grade B with 3 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 10d ago.

The scan reads SKILL.md. This mod also ships 8 executable files (scripts/install-scanners.ps1, scripts/install-scanners.sh, scripts/security_policy.py, …), 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.

Downloads and executes remote codemediumSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

`child_process`, `curl | sh`, or `EncodedCommand` because they describe what to

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

'curl .*\|.*sh'

Runs shell commandslowCapability

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

'child_process'

skills/paseo-spyware-check/SKILL.md · 316 lines

How it starts

The opening of the file, as written. The whole thing — 316 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Paseo Spyware Check

This skill checks a GitHub URL or local repo for suspicious code before the user installs or runs it. It is a risk triage workflow, not a guarantee that code is safe.

The scanner is intentionally independent of Paseo's daemon, MCP tool names, agent profiles, and workspace lifecycle. Paseo 0.6 compatibility depends only on the skill being installed and discovered; scanning remains a local, read-only helper workflow.

Third-party scanners

This skill integrates with external open-source scanner CLIs when they are installed locally. Paseobility does not vendor or redistribute those scanner binaries or rule sets.

scripts/spyware-check.py is the dependency-free, cross-platform scanner. Scanner schema v2 produces an integrity-digested JSON receipt, a versioned local security-policy decision, an immutable GitHub commit/tree/path or local snapshot, severity counts, stable finding IDs, and explicit scan/truncation metadata. The shell and PowerShell helpers provide the broader human-review workflow and may use optional third-party scanners.

Core rules

Default to read-only inspection.
Do not run the target repo's install, build, test, postinstall, prepare, setup, bootstrap, or app commands.
Do not install scanner tools until the user explicitly approves the exact package-manager command.
Clone GitHub URLs into a temporary directory unless the user provided a local path.
Do not source scripts, import project modules, execute package scripts, or run generated binaries from the target repo.
Do not print secret values. Report only file paths, key names, line numbers, and redacted snippets.
Distinguish confirmed secret, high-risk behavior, suspicious pattern, and needs manual review.
Treat Markdown/README/docs/examples as documentation: dangerous examples are informational, while actual configuration/executable content is evaluated for capabilities and blocking canaries. Only actual lifecycle fields in package.json are lifecycle findings.
API-key variable names declare credential capability; they are not automatically High. Actual token/private-key material, executable remote shell pipes, and persistence canaries are blocking.

Read the full file on GitHub · 316 lines

Files

What ships with it

8 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.

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.

10d ago First seen · 316 lines · 144 tokens per session scan B 20d431e8e470

Subscribe to this mod's changes

paseo-spyware-check is a skill published in the GitHub repository wilgon456/Paseobility (19 stars, last pushed 14d ago), licensed MIT. It adds 144 tokens to every session and 2,638 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it B with 3 findings (downloads and executes remote code, makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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