Notes on agent SDKs and configuration

19-01-2026

• tools and skills
  • https://code.claude.com/docs/en/skills - primitives for best practices
  • https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-search-tool
  • https://claude.com/customers/greptile - use the agent sdk for orchestration
  • https://www.epicai.pro/mcp-search-engine
• agent configuration
  • https://github.com/steipete/agent-scripts
  • https://github.com/simonw/tools - massivley useful blog in general
  • https://github.com/openai/skills
• agentic search
  • recurring theme is to give the models more autonomy via developer tools / CLIs (ie ls, grep, cat and others)
  • https://blog.hornet.dev/the-case-for-a-new-retrieval-engine-for-agents
  • https://vercel.com/blog/we-removed-80-percent-of-our-agents-tools
  • https://www.llamaindex.ai/blog/did-filesystem-tools-kill-vector-search
• protocols
  • agent client protocol - https://agentclientprotocol.com/overview/introduction
  • agent agent protocol - https://developers.googleblog.com/en/a2a-a-new-era-of-agent-interoperability/
• browser automation (could see some fun use cases here for UI work)
  • https://github.com/microsoft/playwright-mcp
  • https://github.com/vercel-labs/agent-browser
• spec-driven development
  • https://specui.org/
• claude code telemetry
  • otel integration - https://code.claude.com/docs/en/monitoring-usage
    • logfire exports - https://logfire.pydantic.dev/docs/how-to-guides/query-api/
  • SSL interception
    • https://github.com/mitmproxy/mitmproxy (requires admin access, similar to https://www.tcpdump.org/))
  • claude-code-log
    • https://github.com/daaain/claude-code-log
    • takes existing history and visualises
  • claude-telemetry
    • https://github.com/TechNickAI/claude_telemetry
    • a thin wrapper that runs the cc agent sdk with otel collection
      • https://platform.claude.com/docs/en/agent-sdk/overview
    • usage switches from claude to claudia
  • claude-trace
    • monkey patches global.fetch and the Node HTTP library, then runs Claude Code using Node with an extra --require interceptor-loader.js option to inject the patches
    • https://simonwillison.net/2025/Jun/2/claude-trace/
    • https://github.com/badlogic/lemmy/tree/main/apps/claude-trace
  • cchistory
    • https://mariozechner.at/posts/2025-08-03-cchistory/
    • the system prompts and tools are baked into each CC version binary, so you can download each version, run the trace, and see what has changed at each iteration