Check for and apply upstream COG framework updates (skills, docs, scripts) without touching personal content
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Low
Low-risk findings worth noting
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tessl review fix ./.claude/skills/update-cog/SKILL.mdLow
Low-risk findings.
2 low severity findings. Worth noting, but not necessarily harmful.
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.
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.
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.
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.
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