The catalogue lists 14 IDE and repo test agents and 17 unit test generation tools, as of 2026-09-24. This post lists all 31 with three facts: how tests are created, what the output is, and how the tool connects to coding agents. Each tool page gives the source and verification date for every fact.
How to read the tables
Both tables are sorted by tool name, A to Z. Every cell is documented unless it says "vendor-stated" or "not documented". In the agent integration column, "not recorded" means the catalogue holds no agent integration fact for the tool.
IDE and repo test agents
The category definition reads: "Copilots, plugins and agents that write tests inside the repository."
| Tool | Creation | Output | Agent integration | Status |
|---|---|---|---|---|
| Agentic QE Fleet | prompt to test, code generation | not documented | MCP server; Claude Code plugin with agents, slash commands and skills | active |
| Amazon Q Developer unit test agent | code generation | not documented | IDE plugins for VS Code, JetBrains, Eclipse and Visual Studio; supports MCP servers as a client | active |
| Axolotl | natural language | not documented | VS Code extension built on Cline; writes a fix prompt for Claude Code, Cursor, Codex CLI or other agents | active |
| Copilot for tests | prompt to test, code generation | not documented | GitHub MCP Server; the Copilot cloud agent uses the Playwright MCP server by default | active |
| Cypress Copilot | code generation | standard Cypress | not recorded | active |
| Devin for tests | prompt to test, code generation | not documented | official Devin MCP server; Devin connects to external MCP servers | active |
| Jank | natural language (vendor-stated) | not documented | packages for Claude Desktop, Claude Code, Codex, Cursor and Antigravity plus an MCP server (vendor-stated) | active (vendor-stated) |
| JetBrains AI Assistant test generation | code generation | not documented | MCP client; JetBrains IDEs from 2025.2 include an MCP server for external clients | active |
| Playwright test agents | prompt to test, code generation | standard Playwright | agent definitions for VS Code, Claude Code, Codex and opencode, built on Playwright MCP tools | active |
| Qodo | code generation (vendor-stated) | not documented | Agentic Toolbox MCP server, not for test generation; plugins for Claude Code, Codex and Kiro | renamed |
| Qure | natural language, recording, code generation (vendor-stated) | not documented | not documented | active (vendor-stated) |
| Retracio | recording, code generation (vendor-stated) | standard Playwright (vendor-stated) | not documented | active (vendor-stated) |
| Shiplight | natural language, recording, prompt to test | proprietary runner | MCP server; /shiplight skill for coding agents; VS Code extension | active |
| Tabnine test agent | code generation, prompt to test | not documented | connects to MCP servers configured by the user | acquired |
Unit test generation
The category definition reads: "Tools that generate unit tests for existing code."
| Tool | Creation | Output | Agent integration | Status |
|---|---|---|---|---|
| BitDive | recording | not documented | MCP server exposing runtime traces and test tools to MCP clients | active |
| ChatUniTest | code generation | not documented | not recorded | active |
| CodeRabbit | code generation | not documented | CodeRabbit CLI Claude Code plugin; CLI also documented for Cursor and Codex | active |
| CoverUp | code generation | not documented | not recorded | active |
| Diffblue Cover | code generation | not documented | Cover MCP Server (Beta) for MCP clients | active |
| EarlyAI | code generation | not documented | not recorded | shut down |
| GitAuto | code generation | not documented | not recorded | active (vendor-stated) |
| GPT4Go | code generation | not documented | not recorded | active |
| Mutahunter | not documented | not documented | not recorded | active |
| Parasoft Jtest | code generation | not documented | Jtest MCP Server extension; agent skills for GitHub Copilot CLI and OpenAI Codex CLI | active |
| Pythagora (test generator) | code generation | not documented | not documented | shut down |
| RoostGPT | code generation, natural language, autonomous from URL | standard Playwright | RoostGPT VS Code extension | active |
| Symflower | code generation | not documented | not documented | active (vendor-stated) |
| Test Gru | code generation | not documented | not documented | active |
| TestPilot | code generation | not documented | not recorded | shut down |
| TestSpark | code generation | not documented | not documented | active |
| Tusk | code generation, recording | not documented | Tusk Drift MCP server for Cursor, Claude Code and Claude Desktop; agent skills | shut down |
Counts across the 31 tools
- Output is not documented for 26 of the 31 tools.
- Standard Playwright output is documented for Playwright test agents and RoostGPT.
- Standard Playwright output is vendor-stated for Retracio.
- Standard Cypress output is documented for Cypress Copilot.
- Proprietary runner output is documented for Shiplight.
- The agent integration fact names MCP for 14 of the 31 tools. For Jank, that fact is vendor-stated.
- Code generation is a documented creation method for 23 of the 31 tools.
Status changes
Six of the 31 tools are not listed as active.
- EarlyAI: vendor docs list the IDE extension as a retired product with archived documentation.
- Pythagora (test generator): a README commit marked the repository as deprecated on 2024-03-09.
- Qodo: CodiumAI announced its new name, Qodo, on 2024-09-30.
- Tabnine: Tricentis announced its acquisition of Tabnine, dated 2026-07-30.
- TestPilot: GitHub Next archived the repository on 2025-02-03.
- Tusk: Tusk announced that it sunset the product on 2026-06-10.
Related situation
The AI coding agent workflow page lists tools across all categories whose agent integration fact names an MCP server, an IDE plugin or a coding agent. The IDE test agents and unit test generation hubs hold the full fact sets.