system-prompt-curator vs Agent Guardrails
system-prompt-curator is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑16.
system-prompt-curator is a plugin bundle for AI coding tools published by Avi Fenesh. No marketplace we read lists it any more. Agent Guardrails is an MCP server published by logi-cmd. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-20. 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 agent-sh/system-prompt-curator | Removed on 2026-10-16 Version: 2.1.0 Forks (GitHub): 2 Stars (GitHub): 1 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.3.3 Downloads/month (npm): 441 Downloads/week (npm): 53 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 | system-prompt-curatorno longer listed · | Agent Guardrails |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 1 |
| Stars (GitHub) (differs) | 1 | No figure on GitHub |
| Forks (GitHub) (differs) | 2 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (agent-guardrails) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 2 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/agent-sh/system-prompt-curator | Not stated |
| Changes in the last 7 days (differs) | 4 | 0 |
| First seen (differs) | 2026-10-15 | 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 system-prompt-curator
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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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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Review your AI agent's code as it writes it. Leave comments on diffs, submit structured feedback, and watch the agent fix things in real time — all from your terminal
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Generate ready-to-paste Claude Code prompts with the right agent, orchestration pattern, and safety rails. Orchestrator synthesises patterns from 6 open-source projects into a…
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Intelligent prompt optimization using skill-based architecture. Enriches vague prompts with research-based clarifying questions before Claude Code executes them
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Send your implementation plan to OpenAI Codex CLI for iterative review. Claude and Codex go back-and-forth until Codex approves the plan.
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PDCA memory loop for Claude Code — prevents "AI fixed bug X and broke feature Y" across iterations. Installs a three-tier memory system in your project (project-memory…
What each says it does
system-prompt-curator
Create and improve autonomous coding-agent prompts: context, done criteria, constraints with reasons, and harness checks
Agent Guardrails
Merge gates and safety checks for AI coding agents via MCP.
How to run each
system-prompt-curator
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Agent Guardrails As a local MCP server: npm package
claude mcp add --transport stdio agent-guardrails -- npx -y agent-guardrailsCommands 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: system-prompt-curator · What it can do: Agent Guardrails · 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.