[ysm-dev]

Summary

• Adds network har start and network har stop [path] CLI subcommands for recording and exporting network traffic as HAR 1.2 files
• Enriches the existing (but previously CLI-inaccessible) har_start/har_stop daemon actions with full request/response metadata
• Does not open the browser twice -- har_stop is added to the skip-launch list so export works without re-launching

Changes

CLI parsing (cli/src/commands.rs):

• Added har to valid network subcommands
• network har start -> { "action": "har_start" }
• network har stop [path] -> { "action": "har_stop", "path": "..." }
• Added 4 unit tests for parsing

HAR capture & export (cli/src/native/actions.rs):

• Enriched HarEntry struct with request/response headers, statusText, startedDateTime (from CDP wallTime), resource type, HTTP version, and body sizes
• Captures additional CDP events: Network.requestWillBeSent headers/wallTime/type, Network.responseReceived statusText/headers/protocol/encodedDataLength, and Network.loadingFinished for final transfer size
• Produces HAR 1.2 output with creator/browser metadata, proper [{name, value}] header arrays, query string parsing, and redirect URL extraction
• Auto-generates output path under ~/.agent-browser/tmp/har/ when no path is provided
• Added har_stop to skip_launch list so export does not trigger browser auto-launch
• Added 4 unit tests for HAR entry serialization, timestamp formatting, default path generation, and skip-launch behavior

Help & output (cli/src/output.rs):

• har_start now prints "HAR recording started" instead of generic "Recording started"
• har_stop now prints request count alongside the saved path
• Updated network --help and summary help text

Documentation:

• README.md: Added network har start/stop examples
• docs/src/app/commands/page.mdx: Added HAR commands to network section
• docs/src/app/security/page.mdx: Updated network action policy to include har start/stop
• skills/agent-browser/SKILL.md: Added HAR recording examples for AI agents

Dependencies (cli/Cargo.toml):

• Added time crate (v0.3, formatting feature) for RFC 3339 timestamp formatting

Testing

• cargo test -- 470 passed, 0 failed, 29 ignored
• cargo fmt --check -- clean
• New tests: test_network_har_start, test_network_har_stop_with_path, test_network_har_stop_without_path, test_network_har_requires_subcommand, test_har_entry_json_enriches_request_and_response, test_har_started_date_time_uses_rfc3339, test_handle_har_stop_without_path_uses_default_location, test_execute_har_stop_skips_browser_auto_launch, test_browser_metadata_from_version_parses_product

Usage

agent-browser open https://example.com
agent-browser network har start
# ... navigate, interact ...
agent-browser network har stop ./capture.har

If no path is given to stop, a timestamped file is written to ~/.agent-browser/tmp/har/.

This contribution was developed with AI assistance (Claude Code).

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	cargo/​time@​0.3.47

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[ctate]

Excellent addition. Thanks @ysm-dev!