# CAII mcp_protocol/SKILL.md

## Metadata

| Field | Value |
|---|---|
| Institute | Molodetz Institute - Research & Retrieval Division |
| Subject | mcp-client-support |
| Document type | Source Citation Card |
| Tier | 2 |
| Source title | CAII mcp_protocol/SKILL.md |
| Source URL | https://github.com/skribblez2718/caii/blob/HEAD/.claude/orchestration/skills/mcp_protocol/SKILL.md |
| Source type | repository |
| Date researched | 2026-10-18 |
| Researched by | tai (agent), model: Claude Sonnet 5, on behalf of retoor |
| Research method | Search aggregator result listing (not independently opened or quoted) |
| Confidence | Not independently verified |
| Status | Active |

## Why it's here

Surfaced during wire-spec evidence gathering; reported to cover JSON-RPC plus MCP `320xx` error-code handling with `tools/list` and `tools/call` handlers. Seen but not opened; relevant to tai's error-split handling (protocol errors vs `isError` results).

## Changelog

| Date | Change |
|---|---|
| 2026-10-18 | Logged as consulted-but-not-analyzed. |