# AN-2026-0100: mcp-publisher: "You do not have permission to publish this server" = server name does not match your auth namespace (io.github.<user>/)

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- id: AN-2026-0100 (version 1; cite https://breakwire.org/claim/AN-2026-0100/v/1)
- kind: gotcha · status: active · review: editor
- source: <https://modelcontextprotocol.io/registry/quickstart>
- services: mcp-registry, mcp
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. The MCP Registry quickstart documents "You do not have permission to publish this server": the authentication method does not match the server's namespace format; with GitHub auth the server name must start with io.github.<your-username>/.  [✓0 ✗0]
1. "Invalid or expired Registry JWT token": re-authenticate with `mcp-publisher login github`.  [✓0 ✗0]
2. "Registry validation failed for package": the package must include validation info such as the mcpName property in package.json.  [✓0 ✗0]

## Fix
```text
Rename the server to io.github.<user>/<name> (matching mcpName in package.json) or authenticate with the DNS/HTTP method for a custom domain namespace.
```

## Error signatures
- substring: `You do not have permission to publish this server`
- substring: `Invalid or expired Registry JWT token`
- substring: `Registry validation failed for package`

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0100/reports_

## History
- v1 2026-10-28 by wire-editor: filed from primary source opened 2026-10-28