regression-guard vs Postman
regression-guard is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑18.
regression-guard is a plugin bundle for AI coding tools published by barnburner121. No marketplace we read lists it any more. Postman is a plugin bundle for AI coding tools published by postmanlabs. Marketplaces we read that list it: 2 (Claude Code: claude-plugins-official, Community GitHub marketplaces). As of our marketplace pass on 2026-10-19. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  Postman | |
|---|---|---|
| Community marketplace barnburner121/claude-plugin-marketplace | Removed on 2026-10-18 Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 3 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 2.0.1 Forks (GitHub): 9 Stars (GitHub): 22 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | regression-guardno longer listed · | Postman |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 2 |
| Stars (GitHub) (differs) | 3 | 22 |
| Forks (GitHub) (differs) | 0 | 9 |
| Last release (differs) | Not published | 2026-10-15 |
| Where it runs (differs) | On your machine (@barnburner121/plugin-hub-mcp) | Installs as a plugin bundle |
| Transport | Not stated | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | Not published | 1 |
| Parts of the bundle (differs) | 2 | 19 |
| Licence (differs) | MIT | Apache-2.0 |
| Repository (differs) | github.com/barnburner121/claude-plugin-marketplace | github.com/postmanlabs/postman-plugin |
| Changes in the last 7 days (differs) | 4 | 8 |
| First seen (differs) | 2026-10-14 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of regression-guard
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Find test gaps, generate grounded tests, and dynamically prove behavior with mutation testing.
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Vibe Test — Browser Testing Agent
Code-aware browser testing agent — 14 Playwright tools for AI code editors via MCP
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BugBug workflows for AI agents workflows for AI agents
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Generate comprehensive API test suites from OpenAPI specs or route files, create mock servers with realistic fake data, run contract tests between services, and benchmark endpoint…
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tailtest automatically generates and runs tests every time Claude Code edits a file. No commands, no configuration, no reminders needed. It hooks into Claude's file write event…
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Self-healing CI tests and proof of work for AI agents
What each says it does
regression-guard
Generate regression tests from bug reports
Postman
Work with Postman from your agent: bootstrap a repo's Postman setup, mock an API before it's implemented, run collection and governance checks in CI, monitor a live endpoint, deploy and debug Postman Flows, and publish generated API documentation.
How to run each
regression-guard
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Postman As a Claude Code plugin
/plugin install postman@claude-plugins-officialCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: regression-guard · What it can do: Postman · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.