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update-cog

Check for and apply upstream COG framework updates (skills, docs, scripts) without touching personal content

65

Quality

78%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

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tessl review fix ./.claude/skills/update-cog/SKILL.md
SKILL.md
Quality
Evals
Security

Low

Low-risk findings.

2 low severity findings. Worth noting, but not necessarily harmful.

Low

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

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.

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Low

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

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
Audited
Security analysis
Snyk

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