Our review
Inspect captured HTTP traffic from a MITM proxy by querying a REST API to list, filter, and view request/response details.
Strengths
- Filtering by URL substring
- Full view of request/response headers and bodies
- Export as HAR for external tools
- Clear history support
Limitations
- Requires MITM proxy running on localhost:8889
- Only works with intercepted traffic
- No WebSocket support
When debugging network calls during development or testing.
When real-time traffic monitoring is needed or MITM proxy is not set up.
Security analysis
SafeThe skill only queries a local MITM proxy API on localhost for legitimate traffic inspection and uses bundled bash scripts. No destructive actions, exfiltration, or external network calls. The use of user-provided filter argument is low risk and handled by curl's query string.
No concerns found
Examples
Show me the last 10 HTTP requests captured by the MITM proxy.List all captured requests that contain api.example.com in the URL.Show me the full details of request ID 5 from the proxy, including headers and body.name: mitm-inspect description: Inspect captured HTTP traffic from the MITM proxy. Use when the user wants to see what requests were made, filter traffic by URL, view request/response details, or analyze network activity. argument-hint: "[filter-pattern]" allowed-tools: Bash(bash *) Bash(curl *)
Inspect Captured Traffic
Use the MITM proxy REST API to list, filter, and inspect intercepted HTTP requests.
Arguments: $ARGUMENTS is an optional filter pattern (substring match on URL).
List requests
curl -s "http://localhost:8889/api/requests?filter=$ARGUMENTS&limit=20" | cat
Query params:
| Param | Type | Default | Description |
|-------|------|---------|-------------|
| filter | string | (none) | Substring match on request URL |
| limit | number | 100 | Max results to return |
| offset | number | 0 | Pagination offset |
Response shape:
{
"total": 42,
"offset": 0,
"limit": 20,
"requests": [
{
"id": 1,
"method": "GET",
"url": "https://api.example.com/users",
"status": 200,
"duration": 145,
"size": 2048,
"timestamp": "2026-02-14T12:00:00.000Z",
"modified": false,
"blocked": false,
"redirected": false,
"transformed": false
}
]
}
Get request detail
curl -s http://localhost:8889/api/requests/<ID> | cat
Replace <ID> with the numeric request ID from the list.
Response shape:
{
"id": 1,
"method": "GET",
"url": "https://api.example.com/users",
"timestamp": "2026-02-14T12:00:00.000Z",
"duration": 145,
"modified": false,
"blocked": false,
"redirected": false,
"redirectTarget": null,
"transformed": false,
"request": {
"headers": { "host": "api.example.com", "accept": "*/*" },
"body": ""
},
"response": {
"status": 200,
"headers": { "content-type": "application/json" },
"body": "{\"users\":[...]}"
}
}
Clear request history
curl -s -X DELETE http://localhost:8889/api/requests | cat
Response: { "cleared": true }
Bundled scripts
Traffic summary
Get a breakdown of captured traffic by domain, status code, and timing:
bash skills/mitm-inspect/scripts/traffic-summary.sh "$ARGUMENTS"
Outputs domain counts, status code distribution, average/max duration, and modification stats.
Export as HAR
Export captured requests to a HAR-like JSON file for external tools:
bash skills/mitm-inspect/scripts/export-har.sh "$ARGUMENTS" 100 mitm-export.json
Arguments: [filter] [limit] [output-file]
Typical workflow
- List recent traffic —
curl -s "http://localhost:8889/api/requests?limit=10" - Filter by domain —
curl -s "http://localhost:8889/api/requests?filter=api.example.com" - Inspect a specific request —
curl -s http://localhost:8889/api/requests/5 - Check request/response bodies — look at
.request.bodyand.response.bodyfields - Get a traffic summary —
bash skills/mitm-inspect/scripts/traffic-summary.sh - Export for analysis —
bash skills/mitm-inspect/scripts/export-har.sh - Clear old traffic —
curl -s -X DELETE http://localhost:8889/api/requests
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