100Critical

The skill attempts to override system instructions and introduces supply chain risks by executing unverified external binaries while relying on missing, potentially malicious, dynamically sourced documentation files.

Threat Analysis

AI Agent Traps ↗Scanned 7/1/2026
Semantic ManipulationReasoningclean
Cognitive StateMemory & Learningclean
SystemicMulti-Agent Dynamicsclean
Human-in-the-LoopHuman Overseerclean
HygienePackaging & Manifest6 findings

Skill Info

Namelarksuite/cli/lark-mail
Registrygithub
Version775ee5a501f0
PURLpkg:github/larksuite/cli@775ee5a501f0?skill=lark-mail
Stars14,909
Installs291,400

Install

This skill has been flagged as potentially malicious. Review the findings below before installing.
GitHub
GitHub
291,400 installs
Skills.sh
Skills.shDocs
npx skills add https://github.com/larksuite/cli

Assessments (3)

AI Agent Traps ↗
Role/instruction override attempt detectedcriticalprompt injectionAML.T0051AML.T0051.000AML.T0051.001AML.T0054LLM01:2025

Role/instruction override attempt detected

95% confidenceline 32
Ignore previous instructions
Implicit Trust in External Binarylowsupply chainAML.T0010AML.T0019AML.T0058LLM03:2025

The skill relies on an external binary `lark-cli` without specifying a version, hash, or installation source. This introduces a supply chain risk where the underlying tool could be swapped or compromised, leading to arbitrary command execution.

60% confidence
metadata: requires: bins: ['lark-cli']
Referenced file missing from skill packagelowpolicy violation

SKILL.md links to "references/lark-mail-html.md" but the file is not part of the skill package — the workflow silently degrades or the content is sourced elsewhere at runtime

90% confidence
[references/lark-mail-html.md](references/lark-mail-html.md)
Referenced file missing from skill packagelowpolicy violation

SKILL.md links to "references/lark-mail-recipient-search.md" but the file is not part of the skill package — the workflow silently degrades or the content is sourced elsewhere at runtime

90% confidence
[lark-mail-recipient-search](references/lark-mail-recipient-search.md)
Referenced file missing from skill packagelowpolicy violation

SKILL.md links to "references/lark-mail-send-as.md" but the file is not part of the skill package — the workflow silently degrades or the content is sourced elsewhere at runtime

90% confidence
[lark-mail-send-as](references/lark-mail-send-as.md)
Referenced file missing from skill packagelowpolicy violation

SKILL.md links to "references/lark-mail-send-status.md" but the file is not part of the skill package — the workflow silently degrades or the content is sourced elsewhere at runtime

90% confidence
[lark-mail-send-status](references/lark-mail-send-status.md)
Referenced file missing from skill packagelowpolicy violation

SKILL.md links to "references/lark-mail-template.md" but the file is not part of the skill package — the workflow silently degrades or the content is sourced elsewhere at runtime

90% confidence
[lark-mail-template](references/lark-mail-template.md)
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
[![Mondoo Skill Check](https://mondoo.com/ai-agent-security/api/badge/github/larksuite/cli/lark-mail.svg)](https://mondoo.com/ai-agent-security/skills/github/larksuite/cli/lark-mail)
HTML
<a href="https://mondoo.com/ai-agent-security/skills/github/larksuite/cli/lark-mail"><img src="https://mondoo.com/ai-agent-security/api/badge/github/larksuite/cli/lark-mail.svg" alt="Mondoo Skill Check" /></a>
Image URL
https://mondoo.com/ai-agent-security/api/badge/github/larksuite/cli/lark-mail.svg

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