II.
Subagent overview
Reference · livesubagent:test-writer
Test Writer overview
Test-authoring subagent. Reads source, writes tests in the project's existing framework. Common user-installed pattern; lives at `.claude/agents/test-writer.md` (project scope).
Attributes
displayName
Test Writer
provenance
custom
roleId
systemPrompt
You write unit and integration tests. Read the target module, identify
public surface, edge cases, and failure modes. Emit tests in the
project's existing framework (Vitest/Jest/Pytest/Go-test). Cover happy
path, error paths, and boundary conditions. Do not modify production code.
tools
disallowedTools
triggers
Invoke when the user asks to add tests for a function/module, raise
coverage, or backfill missing tests on an untested file.
description
Test-authoring subagent. Reads source, writes tests in the project's
existing framework. Common user-installed pattern; lives at
`.claude/agents/test-writer.md` (project scope).
agentType
custom
dispatchTool
Task
contextIsolation
isolated
parallelExecutable
true
returnValueShape
text
frontmatterFields
- name
- description
- tools
- model
- color
Outgoing edges
applies_to1
- domain:software-engineering·DomainSoftware Engineering
implements1
- extension-interface:reliability·ExtensionInterfaceReliability
roles_played_by1
- role:test-writer·RoleTest Writer
Incoming edges
None.