Jev (Prompt Coach) vs JsonMend
Jev (Prompt Coach) is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑19.
Jev (Prompt Coach) is a plugin bundle for AI coding tools published by CrowdLinker. No marketplace we read lists it any more. JsonMend is an MCP server published by jsonmend.mike-tusa.workers.dev. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-25. 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 | ||
|---|---|---|
| Community marketplace crowdlinker/jevpromptcoach | Removed on 2026-10-19 Version: 0.3.5 Forks (GitHub): 1 Stars (GitHub): 4 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.3 No figure published 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 | Jev (Prompt Coach)no longer listed · | JsonMend |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 1 |
| Stars (GitHub) (differs) | 4 | No figure on GitHub |
| Forks (GitHub) (differs) | 1 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (jsonmend.mike-tusa.workers.dev/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | 1 | Not published |
| Parts of the bundle (differs) | 4 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/crowdlinker/jevpromptcoach | Not stated |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen | 2026-10-15 | 2026-10-15 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 4 days ago |
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 Jev (Prompt Coach)
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Evidence-oriented code questions, diff review and test selection via a Jev endpoint.
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Reusable Claude Code skills for disciplined software development.
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Auto-enhances vague prompts into well-structured, context-aware prompts before Claude responds. Includes four skills: /enhance (general), /enhance-code (detects your tech stack…
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Boost your development workflow with AI-powered agents for code review, debugging, and strategic planning.
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Mentor is an inline prompt coaching plugin for Claude Code. It watches every prompt before it reaches Claude and, when it spots something worth flagging, injects a short coaching…
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Intelligent prompt optimization using skill-based architecture. Enriches vague prompts with research-based clarifying questions before Claude Code executes them
What each says it does
Jev (Prompt Coach)
Jev (Prompt Coach) - prompt quality coaching on TypeSafe Jev
JsonMend
Repair broken JSON from LLM output and validate it against a JSON Schema.
How to run each
Jev (Prompt Coach)
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
JsonMend As a remote MCP server
claude mcp add --transport http jsonmend https://jsonmend.mike-tusa.workers.dev/mcp --header "Authorization: Bearer <YOUR_TOKEN>"Requires: Authorization header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only JsonMend has a remote endpoint we check. How we check endpoints
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: Jev (Prompt Coach) · What it can do: JsonMend · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.