agent-v3-security-architect

The skill content is primarily documentation and secure-pattern guidance and is largely consistent with its stated purpose. The main security concerns are operational: the pre/post execution hooks execute shell commands that interpolate agent variables and call an unpinned, alpha-scoped npx package (agentic-flow@alpha). That npx invocation represents a supply-chain risk (remote package fetch + execution). Minor templating mistakes ($dev$null, dollar signs in identifiers) and stderr suppression increase the chance that failures or malicious behavior could be hidden. No direct evidence of malware or credential theft is present in this fragment, but runtime invocation of unpinned third-party code and unsanitized interpolation of $TASK raise the overall security risk to medium. Recommend replacing npx runtime calls with pinned, auditable internal APIs or verified binaries, sanitize/escape TASK before interpolation, and fix redirection to a real /dev/null and avoid suppressing stderr.