mcp-skillbox
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| SKILL_DEBUG | No | Set to '1' or 'true' to log registry selection and diagnostics to stderr. | |
| GITHUB_TOKEN | No | Optional GitHub token; sent as Authorization on api.github.com calls to raise API rate limits. | |
| SKILL_REGISTRY | No | Registry selection mode: auto (token present → skills.sh, else GitHub), skills-sh, or github. | auto |
| SKILLS_SH_TOKEN | No | Optional. Enables the skills.sh API mode with richer data (install counts, leaderboard views). Obtainable from a Vercel project via OIDC. | |
| SKILL_MAX_BYTES | No | Registry-level byte cap applied to loaded skill content. | 200000 |
| SKILL_GITHUB_SOURCES | No | Comma-separated owner/repo list for GitHub mode. | vercel-labs/skills, anthropics/skills, obra/superpowers, mattpocock/skills, microsoft/azure-skills, supabase/agent-skills, prisma/skills |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| list_skillsA | List available agent skills from the registry (skills.sh / GitHub). Returns compact metadata only (id, name, source, installs) - NO descriptions or content, so it is cheap on context. Use this to browse what is available before searching. |
| search_skillsA | Search for agent skills by keyword (name or description). Returns compact results: id, name, source, installs, and a short description preview (<=300 chars) when include_description is true. Use this to find a skill for a task. Query must be at least 2 characters. |
| load_skillA | Load the FULL content of one skill by id (e.g. "vercel-labs/skills/find-skills" or "anthropics/skills/document-skills"). Returns the complete SKILL.md plus optional supporting files. Use ONLY when you have decided to use a specific skill and need its full instructions - this is the expensive (context-heavy) call; prefer list_skills/search_skills first. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 3 tools
Each tool has a distinct role: list for browsing, search for finding by keyword, load for retrieving full content. There is no overlap in functionality or purpose.
Tools follow a verb_noun pattern, but 'list_skills' and 'search_skills' use plural while 'load_skill' uses singular. This minor inconsistency is predictable and does not cause confusion.
With 3 tools, the server is well-scoped for a skill registry: browse, search, and retrieve full content. Each tool serves a necessary function without unnecessary bloat.
The tool surface covers the full workflow for discovering and using skills: listing available skills, searching them, and loading the full content when needed. No obvious gaps exist for the stated purpose.