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Lessons Learned from Browser Agent Development

After months of troubleshooting, I discovered key insights about my browser agent's functionality and its SDK limitations.

Time saved
0h / week
Setup time
Not stated
Running cost
Not stated
Cost range
Free

The problem it solves

For an extended period, my browser agent failed to recognize its own system prompt due to a misunderstanding of the SDK's requirements. This oversight led to significant debugging time and a lack of clarity in the agent's operations.

How it flows
  1. Debugging
  2. SDK Limitations
  3. System Prompt
  4. Development Insights

Step-by-step setup

  1. Identify the Issue

    Realized that the browser agent was not processing its system prompt correctly due to the SDK's focus on systemMessage.

  2. Document the Process

    Wrote a comprehensive overview of how the browser agent operates, detailing the flow and interactions.

  3. Learn from Bugs

    Analyzed the bugs encountered during development to extract valuable lessons that could improve future projects.

Coding · Advanced
  1. Write migration plan
  2. Agent edits in batches
  3. Tests per batch

Ship a 40-file refactor with a coding agent

Plan, execute and review a cross-cutting refactor in small batches, with Claude Code making the edits and GitHub Copilot reviewing each PR.

Claude Code · GitHub Copilot
Coding · Intermediate
  1. PR opened
  2. Copilot inline review
  3. Claude risk summary

Automated first-pass review on every pull request

Copilot and Claude review each PR for bugs, missing tests and risky changes before a human looks, so reviewers can focus on design.

GitHub Copilot · Claude · Slack
Coding · Advanced
  1. Run coverage
  2. Pick 3 riskiest files
  3. Write + run tests

Generate missing unit tests for untested modules

Claude Code reads your coverage report, picks the riskiest untested modules and writes unit tests that pass, one small PR at a time.

Claude Code · GitHub Copilot · Slack