regression-guard vs buildkite
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. buildkite is a plugin bundle for AI coding tools published by buildkite. Marketplaces we read that list it: 4 (Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces). As of our marketplace pass on 2026-10-27. 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 |  buildkite | |
|---|---|---|
| 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: 1.0.0 Forks (GitHub): 4 Stars (GitHub): 18 Not marked · First seen |
| Claude: knowledge-work-plugins | Not listed | Listed Version: 1.0.0 Forks (GitHub): 4 Stars (GitHub): 18 Not marked · First seen |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 1.0.0 Forks (GitHub): 4 Stars (GitHub): 18 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 · | buildkite |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 4 |
| Stars (GitHub) (differs) | 3 | 18 |
| Forks (GitHub) (differs) | 0 | 4 |
| Last release (differs) | Not published | 2026-10-16 |
| 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 |
| Parts of the bundle (differs) | 2 | 7 |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/barnburner121/claude-plugin-marketplace | github.com/buildkite/skills |
| Changes in the last 7 days | 0 | 0 |
| 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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English skills: evidence-disciplined testing framework, Playwright test review, test cases, Jira bug reports
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Comprehensive testing toolkit for test strategy, coverage analysis, and test data generation. Includes test strategist agent for planning optimal testing approaches.
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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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Test-quality skills for Claude Code. AI-driven mutation testing, where Claude acts as the mutation engine to find weak tests, and agentic testing, where Claude drives the running…
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QA process setup with AAA test cases, P0-P4 bug tracking, metrics reports, OWASP security testing and third-party handoffs. Use for test planning, approved-batch execution and…
What each says it does
regression-guard
Generate regression tests from bug reports
buildkite
Official Buildkite skills for Claude Code, Cursor, and other AI coding agents — pipelines, migration, preflight, agent runtime, CLI, and API
How to run each
regression-guard
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
buildkite As a Claude Code plugin
/plugin install buildkite@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: buildkite · 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. Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/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.