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Claude Code Tips and Tricks

First time setup​

  • /terminal-setup enable shift+enter to insert new lines
  • /allowed-tools Customize tool permissions
  • /install-github-app
  • /config - Turn on notifications
  • /theme Enable light/dark mode
  • use dictation for long prompts

Using Claude-Code to answer code base​

  • Q&A
    • How is @routingcontroller.py used ?
    • How do i make a new @app/services/validationtemplatefactory ?
    • Why does recoverfromexception take so many arguments ?
    • why did we fix issue # 182872 by adding the if/esle in @src/login.ts ?
    • In which version did we release the new @api/ext/prehooks.php API ?
    • Look at PR #92882 then carefully verify which version were impacted ?
    • What did i ship last week ?
    • ask about git history ?

Editing code​

  • Use the tools to give it done
  • Already has tools to edit files, brainstorm the code, TODOs, Subagents, listing files, webfetch and search, filesearch

Use tools your way​

  • Propose fixes - i will implement one
  • Identify edge cases covered in signuptest.ts
  • commit,push,pr
  • use 3 parallel agents to brainstorm ideams for how to cleanup

Plugin your teams tools​

  • Tell claude code about your bash tools

    • use the barley cli to check for error logs in the last training run use -h how to check it

  • Tell claude about your MCP tools


claude mcp app barly_server --node myserver

Common workflows​

  • Explore, plan, confirm, code commit

  • Write tests commit code iterate commit

  • write code screenshot result iterate

    • implement mock.png then screnshot it with puppeteer and iterate till it looks like the mock

Give claude more context​

  • /enterprise root/CLAUDE.md
  • ~/.claude/CLAUDE.md
  • project-root/
    • CLAUDE.md
    • CLAUDE.local.md
  • shortcut: type #
  • Common bash commands - Common MCP tools
  • Architectural decisions
  • Important files
  • Style guides
  • Claude will pull on demand
  • Take time to tune the performance

Memory​

/memory

Configure CLAUDE.MD MCP Servers​

  • Puppeteer pilot end to end test

Common keybindings​

  • shift+tab to auto accept edits

  • to create a memory

  • ! to enter bash mode
  • @ to add a file
  • Esc to cancel
  • double esc to jump back in history --resume to resume
  • ctrl+r for verbose output
  • /vibe

Claude Code SDK​


claude -p

```bash
claude -p \
"What did i do this week?" \
--allowedTools Bash(git log:*)
--output-format json
git status | claude -p "What are my changes" \\
--output-format=json | jq '.result'

"Your changes are:"

Multi Claude​

  • ssh + tmux

  • use one checkout with git worktrees

  • github actions + launch jobs in parallel

  • use multiple checkouts in separate terminal tabs

Learnings from building agents​

  • Bash is dangerous - make it safe ; static read only commands ; complex tier command structure system
  • claude code is multimodal
  • CLI instead of IDE
    • Terminal is the common denominator

  • Machine learning modelling​

References​

https://www.youtube.com/watch?v=6eBSHbLKuN0