briefing vs Agent Coach (Upskill)
briefing is a plugin bundle for AI coding tools published by Getty. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). Agent Coach (Upskill) is an MCP server published by upskill.coach. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-14. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  briefing | |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.1.0 Forks (GitHub): 0 Stars (GitHub): 5 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.0.0 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 | briefing | Agent Coach (Upskill) |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 5 | No figure on GitHub |
| Forks (GitHub) (differs) | 0 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (upskill.coach/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) | 2 | Not a bundle |
| Licence (differs) | Artistic-2.0 | Not stated |
| Repository (differs) | github.com/getty/briefing | Not stated |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen (differs) | 2026-10-11 | 2026-11-10 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 16 h ago |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
briefing
A Claude Code plugin that lets a subagent declare its required skills in frontmatter — and guarantees they are loaded before the agent thinks its first thought. No "MANDATORY: load X first" pleading in the body. No silent skips. The skills are simply there when the agent wakes up.
Agent Coach (Upskill)
Free coach for AI agents: security-vetted skills, MCP servers and prompts, plus daily check-ins.
How to run each
briefing As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install briefing@claude-communityAgent Coach (Upskill) As a remote MCP server
claude mcp add --transport http agent-coach https://upskill.coach/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only Agent Coach (Upskill) 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: briefing · What it can do: Agent Coach (Upskill) · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. 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.