Identify and suppress hard-bounced contacts to protect email sender reputation. Hybrid approach: API for discovery and audit, manual UI for suppression (hs_marketable_status is read-only via API).
Install
npx skills add TomGranot/hubspot-admin-skills --skill suppress-hard-bouncednpx skills add TomGranot/hubspot-admin-skills --skill suppress-hard-bounced -a claude-code -gnpx skills add TomGranot/hubspot-admin-skills --skill suppress-hard-bounced -a codex -ggemini skills install https://github.com/TomGranot/hubspot-admin-skills.git --path skills/suppress-hard-bouncedgh skill install TomGranot/hubspot-admin-skills suppress-hard-bouncedgit clone --depth 1 https://github.com/TomGranot/hubspot-admin-skills /tmp/TomGranot__hubspot-admin-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/TomGranot__hubspot-admin-skills/skills/suppress-hard-bounced ~/.claude/skills/suppress-hard-bounced # Claude Code
cp -R /tmp/TomGranot__hubspot-admin-skills/skills/suppress-hard-bounced ~/.agents/skills/suppress-hard-bounced # Codex, Cursor, Gemini CLI, Copilot, OpenCode