update-cog
Check for and apply upstream COG framework updates (skills, docs, scripts) without touching personal content
58
67%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./.claude/skills/update-cog/SKILL.mdSecurity
2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.
W011: Third-party content exposure detected (indirect prompt injection risk)
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
Third-party content exposure detected (high risk: 1.00). The skill explicitly adds and fetches from a public upstream GitHub remote (git remote add cog-upstream https://github.com/huytieu/COG-second-brain.git and git fetch cog-upstream main) and reads/upgrades framework SKILL.md and related files from that remote, meaning untrusted third‑party repository content would be ingested and can change agent behavior.
W012: Unverifiable external dependency detected (runtime URL that controls agent)
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
Potentially malicious external URL detected (high risk: 0.90). The skill adds and fetches from the upstream remote https://github.com/huytieu/COG-second-brain.git at runtime and then reads or checks out framework files (e.g., .claude/skills/*/SKILL.md, .kiro/powers/*/POWER.md, cog-update.sh) which can supply prompts/instructions and scripts that would control agent behavior or execute code.
- Repository
- huytieu/COG-second-brain
- Commit
034af4c
- Audited
- Security analysis
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.