# SCP — Selective Context Protocol

> Use this tool when you need to optimize large language model (LLM) responses within strict context window budgets. The Selective Context Protocol (SCP) intelligently filters tool responses to ensure relevance and efficiency, taking in LLM client requests and outputting filtered responses to the MCP server. Ideal for use cases where context budget constraints are a concern, SCP streamlines communication between LLM clients and MCP servers without requiring client-side changes.

Canonical page: https://skillsregistry.net/skills/eliasstepanik-scp  
JSON: https://api.skillsregistry.net/v1/skills/eliasstepanik-scp

## Description

MCP-compatible proxy hub that intelligently filters tool responses to stay within LLM context window budgets.

SCP sits between your LLM client and MCP servers, treating context as a budget, not a dump. Every token must earn its place through measured relevance. Clients connect to SCP as if it's a normal MCP server — zero changes required.

## Trust

- **Trust score (0–1):** 0.25
- **Verification tier:** scanned
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-28

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/f4sehnxxsc)
- **Repository:** <https://github.com/eliasstepanik/scp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "eliasstepanik-scp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/eliasstepanik-scp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/eliasstepanik-scp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt