Automatically send Claude Code conversation traces to LangSmith for monitoring and analysis. Prerequisites: jq (brew install jq on macOS or sudo apt-get install jq on Linux), curl and uuidgen (usually pre-installed), LangSmith account and API key. Configuration: Install langsmith-tracing setting (npx claude-code-templates@latest --setting telemetry/langsmith-tracing) or manually add to .claude/settings.local.json the following environment variables: TRACE_TO_LANGSMITH=true, CC_LANGSMITH_API_KEY=lsv2_pt_..., CC_LANGSMITH_PROJECT=project-name, CC_LANGSMITH_DEBUG=true (optional). How it works: Runs in background on Stop event after each Claude response, reads conversation transcript, converts to LangSmith format, sends to LangSmith API, groups by thread_id for session continuity. Debugging: Check logs at ~/.claude/state/hook.log. Privacy note: System prompts not included in traces.
Ultra-fast headless browser written in Zig specifically for AI and automation workloads. It runs JavaScript natively, uses 9x less memory than Chrome headless, and targets sub-100ms page execution.
Hook bundle: Reference lifecycle hook definitions for ECC memory persistence. The production hook graph is hooks/hooks.json.. Use to persist and reload agent session state across compaction.
MultiOn AI browser agent API: a cloud service that lets developers invoke an autonomous web agent via REST to complete tasks like form filling, data extraction, and multi-step workflows on any site.
Enforce Next.js best practices, proper file structure, component patterns, and TypeScript usage with automated code reviews and suggestions. Validates Next.js App Router conventions, Server/Client component patterns, proper imports, and TypeScript usage. Provides real-time feedback on code quality and adherence to Next.js best practices.
Show notification before any Bash command execution for security awareness. This hook displays a simple echo message '🔔 About to run bash command...' before Claude executes any bash command, giving you visibility into when system commands are about to run. Useful for monitoring and auditing command execution.
Monitor bundle size and Core Web Vitals metrics during development, blocking deployments that exceed performance budgets with detailed reports. Automatically analyzes Next.js build output, checks bundle sizes against predefined budgets, and provides optimization recommendations. Hook triggers on PostToolUse for build-related operations and file changes that could affect performance.
Planning gate that warns when editing production code without an approved specification. Checks for recent .spec.md files in the project directory (last 14 days). If no spec is found, shows a warning suggesting to create one first. Non-blocking (exit 0) — acts as a reminder, not a hard gate. Supports 16 programming languages. Part of the Spec-Driven Development (SDD) methodology where every implementation should be backed by an approved specification.