Repair malformed model-generated JSON with a local parser or repair library, then validate it against the expected schema.
Install
npx skills add alivirgo/Major-AI-Skills --skill compressed-json-repairnpx skills add alivirgo/Major-AI-Skills --skill compressed-json-repair -a claude-code -gnpx skills add alivirgo/Major-AI-Skills --skill compressed-json-repair -a codex -ggemini skills install https://github.com/alivirgo/Major-AI-Skills.git --path skills/compressed-json-repairgh skill install alivirgo/Major-AI-Skills compressed-json-repairgit clone --depth 1 https://github.com/alivirgo/Major-AI-Skills /tmp/alivirgo__Major-AI-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/alivirgo__Major-AI-Skills/skills/compressed-json-repair ~/.claude/skills/compressed-json-repair # Claude Code
cp -R /tmp/alivirgo__Major-AI-Skills/skills/compressed-json-repair ~/.agents/skills/compressed-json-repair # Codex, Cursor, Gemini CLI, Copilot, OpenCode