70High

The skill lacks mandatory sandboxing and tool constraints, allowing arbitrary shell execution and filesystem access while bypassing human oversight and masquerading as a trusted AI brand.

Threat Analysis

AI Agent Traps ↗Scanned 8/21/2026
Content InjectionPerceptionclean
Cognitive StateMemory & Learningclean
SystemicMulti-Agent Dynamics1 finding
Human-in-the-LoopHuman Overseerclean
HygienePackaging & Manifest1 finding

Skill Info

Nameyarrasys/extensions/deepseek
Registrygithub
Version3a996a93d81a
PURLpkg:github/yarrasys/extensions@3a996a93d81a?skill=deepseek
Stars1
SHA-25629265e08ef11...
SHA-1f435c9982fee...
MD5be0ca83ed32d...
TLSHfa2218fb6a84...
ssdeep192:9q5J463B...
Size10,280 bytes

Install

This skill has been flagged as potentially malicious. Review the findings below before installing.
GitHub
GitHub
Skills.sh
Skills.shDocs
npx skills add https://github.com/yarrasys/extensions

Assessments (4)

AI Agent Traps ↗
Description Mismatchhighdescription mismatchAML.T0011.000LLM06:2025LLM09:2025

The documentation explicitly warns that the 'isolation' provided is merely detection after the fact, not a sandbox. The child process retains full shell access and can exfiltrate data or perform arbitrary actions, contradicting the implication of a secure, isolated 'grunt work' environment.

85% confidence
The 'Security — what isolation actually covers' section admits: 'it does NOT sandbox the child's process. From inside the worktree the child can still run arbitrary shell commands, write to absolute paths... or read/exfiltrate repo contents over the network.'
Misleading security claims regarding `--file` scopingmediumsocial engineeringAML.T0052.000LLM09:2025

The documentation admits that the `--file` argument is not enforced and the child process has access to the entire repository, which contradicts the user's expectation of scoped execution.

90% confidence
⚠️ `--file` does not scope the edit. It's accepted by the CLI but not yet read by `delegate` in v1 — the delegated child always sees the whole repo
Potential brand impersonationmediumsocial engineeringAML.T0052.000LLM09:2025

Skill name or description references a well-known AI brand, which may suggest impersonation.

70% confidence
anthropic
Insecure execution model (Process-level access)highcommand executionAML.T0050AML.T0053AML.T0072LLM05:2025LLM06:2025

The skill explicitly admits that worktree isolation does not sandbox the child process, allowing it to execute arbitrary shell commands and access the filesystem outside the intended scope. [ensemble: confirmed by 3/3 passes; severity set to the agreed median (ADR-0067).]

100% confidence
The delegated child runs with `Bash` in `ALLOWED_TOOLS`... it does NOT sandbox the child's process. From inside the worktree the child can still run arbitrary shell commands.
Insecure sandbox design (Detection vs. Prevention)highcommand executionAML.T0050AML.T0053AML.T0072LLM05:2025LLM06:2025

The skill relies on post-execution detection of file system escapes rather than actual process sandboxing, meaning a malicious child process can execute arbitrary shell commands or exfiltrate data before being 'caught'.

90% confidence
The worktree is created outside the repo tree, and `delegate` compares the main tree's status before/after the run: a child that writes into the real working tree despite isolation is caught and reported as `isolation_breach`.
Organization name detectedmediumpii exposureAML.T0024LLM02:2025

NER model detected organization in skill content (confidence: 0.59)

59% confidence
D****
Organization name detectedmediumpii exposureAML.T0024LLM02:2025

NER model detected organization in skill content (confidence: 1.00)

100% confidence
D*******
Missing allowed-tools declarationlowunauthorized tool useAML.T0053LLM06:2025

Skill executes commands, writes files, or accesses the network but declares no allowed-tools, so its tool surface cannot be reviewed or constrained.

90% confidence
User confirmation bypass detected — attempts to skip human oversightmediumautonomy abuseAML.T0034.002AML.T0053LLM06:2025LLM10:2025

User confirmation bypass detected — attempts to skip human oversight

95% confidenceline 118
auto-approve
Missing licenseinfopolicy violation

Skill does not specify a license field. Specifying a license helps users understand usage terms.

100% confidence

Badge

Skill Check badge
Markdown
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Image URL
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