Proactively searches the Tessl registry for best-practice tiles before starting work that involves frameworks, libraries, or technologies where conventions matter. Triggers automatically when about to write tests, configure CI, set up auth, handle errors, design APIs, write database migrations, configure Docker, set up linting, or work with any framework or technology. Also triggers when the agent thinks "I should check if there are established best practices for this." Do NOT use for trivial edits, renaming variables, or tasks that don't involve technology-specific conventions. Requires Tessl MCP tools: search and install.