Resolve DNS records (A/AAAA/MX/TXT/CNAME/NS/SOA/SRV/PTR/ANY) for any hostname via @mukundakatta/dns-mcp

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## @mukundakatta/dns-mcp v0.1.0 — DNS record resolver via MCP

**Install:** `npm install @mukundakatta/dns-mcp`
**Entry:** `dist/server.js` (stdio)
**Tools:** 1 — `resolve`
**Supported record types:** A, AAAA, MX, TXT, CNAME, NS, SOA, SRV, PTR, ANY
**Backend:** Node.js `dns.promises` (system resolver)

### Schema
```json
{"name":"resolve","inputSchema":{"type":"object","properties":{"hostname":{"type":"string"},"type":{"type":"string","enum":["A","AAAA","MX","TXT","CNAME","NS","SOA","SRV","PTR","ANY"],"default":"A"}},"required":["hostname"]}}
```

### Verified execution trace (8 calls, 100% success)

| # | Call | Result |
|---|------|--------|
| 1 | `resolve({hostname:"example.com",type:"A"})` | `{records:["172.66.147.243","104.20.23.154"]}` |
| 2 | `resolve({hostname:"google.com",type:"MX"})` | `{records:[{exchange:"smtp.google.com",priority:10}]}` |
| 3 | `resolve({hostname:"google.com",type:"TXT"})` | 14 TXT records (SPF, site-verification, DocuSign, etc.) |
| 4 | `resolve({hostname:"www.github.com",type:"CNAME"})` | `{records:["github.com"]}` |
| 5 | `resolve({hostname:"cloudflare.com",type:"NS"})` | 5 NS records (ns3-ns7.cloudflare.com) |
| 6 | `resolve({hostname:"google.com",type:"AAAA"})` | `{records:["2a00:1450:4017:807::200e"]}` |
| 7 | `resolve({hostname:"thisdomaindoesnotexist12345.invalid",type:"A"})` | Error text: "dns resolve failed: queryA ENOTFOUND ..." |
| 8 | `resolve({hostname:"example.com"})` | Default type=A: same as test 1 |

### Key observations
- **MX records** return structured `{exchange, priority}` objects, not flat strings
- **TXT records** return arrays of arrays (each TXT record can have multiple strings per RFC 7208)
- **Default type is A** when `type` omitted
- **Graceful error handling** — nonexistent domains return error text (not exception), with descriptive message
- **No network configuration needed** — uses system DNS resolver
- **10 record types** supported including SOA, SRV, PTR, and ANY
- **Real-time results** — queries are live DNS lookups, not cached/static

#	Call	Result
1	`resolve({hostname:"example.com",type:"A"})`	`{records:["172.66.147.243","104.20.23.154"]}`
2	`resolve({hostname:"google.com",type:"MX"})`	`{records:[{exchange:"smtp.google.com",priority:10}]}`
3	`resolve({hostname:"google.com",type:"TXT"})`	14 TXT records (SPF, site-verification, DocuSign, etc.)
4	`resolve({hostname:"www.github.com",type:"CNAME"})`	`{records:["github.com"]}`
5	`resolve({hostname:"cloudflare.com",type:"NS"})`	5 NS records (ns3-ns7.cloudflare.com)
6	`resolve({hostname:"google.com",type:"AAAA"})`	`{records:["2a00:1450:4017:807::200e"]}`
7	`resolve({hostname:"thisdomaindoesnotexist12345.invalid",type:"A"})`	Error text: "dns resolve failed: queryA ENOTFOUND ..."
8	`resolve({hostname:"example.com"})`	Default type=A: same as test 1

Resolve DNS records (A/AAAA/MX/TXT/CNAME/NS/SOA/SRV/PTR/ANY) for any hostname via @mukundakatta/dns-mcp

@mukundakatta/dns-mcp v0.1.0 — DNS record resolver via MCP

Schema

Verified execution trace (8 calls, 100% success)

Key observations

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