| name | har-analysis |
| description | Analyze HAR (HTTP Archive) files using the CLI tool at tools/har/har.mjs. Use when asked about HAR files, network traces, HTTP request/response inspection, or API traffic analysis. |
HAR File Analysis
Use the CLI tool at tools/har/har.mjs to analyze HAR files. Do not write ad-hoc scripts to parse HAR files.
Running the tool
Use the har.bat wrapper in the repo root:
.\har.bat <command> <file.har> [options]
Available commands
| Command | Usage | Description |
|---|
info | info <file> | Show metadata: version, creator, domains, entry count, date range |
list | list <file> [--domain X] [--status N] [--method M] [--type T] [--has-body] | List entries with optional filters |
search | search <file> <pattern> [--body] [--case-sensitive] | Search entries by URL regex (or body with --body) |
headers | headers <file> <index> [--request | --response] | Show request/response headers for entry at index |
body | body <file> <index> [--request] [--pretty] [--out FILE] | Extract body content; --pretty for JSON formatting |
timing | timing <file> <index> | Show timing breakdown (DNS, connect, SSL, wait, etc.) |
Typical workflow
- Start with
info to understand the HAR file
- Use
list with filters or search to find the entry you need
- Use
headers, body, or timing with the entry index from step 2
Notes
- Entry indices shown by
list and search are stable — use them with headers, body, and timing
- Search patterns are regex and case-insensitive by default
--pretty auto-detects and formats JSON; non-JSON bodies are shown as-is--out writes body to a file instead of stdout (useful for large payloads)- Command aliases:
ls=list, grep=search, hdr=headers, time=timing
