Tips, tricks, and lessons from building software.

Tips, tricks, and lessons from building software — a personal dev blog by Tommy.

Choosing a Model for Each Subagent

September 8, 2026· 2 min read·claude-codesubagentsagentsproductivity

Set a model alias per subagent so cheap jobs run on a fast model and hard jobs get a stronger one.

Running Subagents in Parallel

September 8, 2026· 2 min read·claude-codesubagentsagentsproductivity

Because each subagent has its own context window, you can send several to investigate different areas at once.

Keeping Your Main Context Clean with Subagents

September 8, 2026· 2 min read·claude-codesubagentsproductivitycontext

Offload noisy investigation to subagents so your main session keeps only the decisions, not the file dumps.

Always Give Claude a Way to Check Its Work

September 6, 2026· 2 min read·claude-codetipsproductivitytesting

Hand Claude a test, lint, or build command it can run itself, and it will catch and fix its own mistakes before you ever see them.

Point Claude at Examples and Patterns

September 6, 2026· 2 min read·claude-codepromptingtipsproductivity

Show Claude an existing file that does it the right way, and new code will match your conventions instead of inventing its own.

Paste Screenshots to Explain Bugs Faster

September 6, 2026· 2 min read·claude-codetipsdebuggingproductivity

A screenshot of a broken layout or an error dialog tells Claude in one glance what a paragraph of description struggles to.