AI agent test generation workflow
Use AI agents to generate focused unit, integration and Playwright tests from behavior and risk instead of snapshots.
Quick answer
A test generation agent should start from behavior, risk and regressions, then create the smallest checks that fail for the right reason.
Workflow
Ask the agent to identify changed behavior, choose test level, cover edge cases and run only the relevant test command before widening scope.
Risk check
Generated tests are weak when they only assert rendering, mock the behavior under test or duplicate implementation details.
FAQ
Should agents generate snapshots?
Only rarely. Behavior, access control and integration tests usually catch more meaningful regressions.
Generate useful tests
Related guides
5 Claude Code Hooks I Use Daily
Claude Code hooks run shell commands on session start, file writes, and tool calls. Here are the 5 I use daily and how to configure them.
Most people discover Claude Code for the AI. They miss the hooks. Hooks are shell commands that execute automatically when something happens in your Claude Code session: a session starts, a tool runs, Claude stops. You define them in .claude/settings.json . They run silently in the background. Here are the 5 I use every day. What hooks look like The available events: SessionStart , UserPromptSubmit , PreToolUse , PostToolUse , Stop . Hook 1 Auto inject date on every prompt Event : UserPromptSubmit Claude doesn't have real time awareness. Every prompt gets the current date injected automatically. Useful for anything time sensitive: changelogs, deadlines, scheduling logic. Hook 2 Push notification when Claude stops Event : Stop Long tasks (refactors, test runs, analysis) can take 2–5 minutes. Without a notification I'd either stare at the screen or miss the result. This fires whenever Claude finishes a task, whether it succeeded or…
Read the guideClaude Code Subagents: Parallel Agents
Learn when Claude Code subagents help, how to split parallel work, and how to configure a focused custom subagent without creating conflicts.
Subagents are useful when a task can be split cleanly: one agent searches the authentication code, another traces the database path, and the main conversation compares what they found. They add little to “read this file” or to work where every step depends on the same context. Short version: delegate independent research or a separate review when the results are worth the extra context and usage. Give each agent a narrow scope, the files or area to inspect, and a specific report format. Keep dependent work in the main conversation. If you want a step by step walkthrough of launching one, see the subagent spawning guide. Subagents can have their own instructions, tool access, and permissions. They start with a separate context, but by default work from the main conversation’s current directory. That means “separate context” does not necessarily mean “separate files.” If you want a repeatable checklist in the…
Read the guideClaude Code Plan Mode: A Practical Guide
Claude Code Plan Mode lets you review and steer a task plan before any file is touched. Full guide: shortcut (Shift+Tab), activation, when to use it, and how to execute the plan.
Most people use Claude Code like a chat: describe the task, watch it execute. That works for small changes. For anything touching more than two files, there's a better path. If you are looking for the shortcut, press Shift+Tab to toggle Plan Mode. To turn it off, press Shift+Tab again or use /plan only for the prompt that needs planning. The dedicated Plan Mode troubleshooting guide covers the common terminal and version issues. Plan Mode. What Plan Mode does When you activate Plan Mode, Claude reads your codebase and produces a step by step execution plan but makes no changes. You see exactly what it intends to do before a single file is written. This gives you a checkpoint: approve the plan, redirect it, or catch a wrong assumption before it cascades into 15 wrong edits. How to activate Plan Mode the shortcut Two ways: Keyboard shortcut : press Shift+Tab…
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