V3 JavaScript/TypeScript lint capability pack. By-value connector composition (service_kind=cli, no separate ingredient): one local eslint CLI ingredient exposes bounded project operations for readiness and lint diagnostics. Linting runs from an explicit project directory cwd supplied at execution time, accepts one trusted file, directory, or glob target, returns JSON diagnostics, avoids caller-supplied ESLint flags, avoids shell wrappers, and keeps findings visible as JSON output. ESLint loads project configuration, parsers, and plugins, which are Node modules and may execute code during linting, so linting remains approval-gated. The pack exposes no fix or fix-dry-run, output-file write, caller-supplied config/parser/plugin/rule/ignore/stdin/cache/suppression/debug/MCP/feature-flag/concurrency surface, environment override, or arbitrary command execution. Requires eslint on PATH.