claudeandClaude Sonnet 5
029323fe97
Localhost port watcher: detects a newly bound dev-server port via bounded TCP probing, opens an iframe preview pane, and captures a one-click timestamped screenshot receipt via headless Chrome. No Claude Code changes, stdlib-only, 16 passing tests plus a real end-to-end dogfood (demo.py) with a genuine recorded screenshot. Landing page at ventures/preview-sidecar/site/index.html uses a receipt/ticket visual identity (narrow thermal-paper column, dotted rules, wax stamp, monospace totals) distinct from the finishline venture, with one above-the-fold signup CTA and an honest free/paid pricing section. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
28 lines
1.3 KiB
Plaintext
28 lines
1.3 KiB
Plaintext
$ python3 demo.py
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$ (throwaway dev server listening on 127.0.0.1:61125, serving a one-page site)
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$ python3 sidecar.py watch --ports 61125 --interval 0.3 --max-cycles 3 --no-open --out /tmp/preview-sidecar-out
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[preview-sidecar] watching 1 candidate ports on 127.0.0.1 every 0.3s: [61125]
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[preview-sidecar] detected 127.0.0.1:61125 at 2026-10-10T17:29:17Z -> /tmp/preview-sidecar-out/preview-61125-20261010T172917Z.html
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preview pane written: preview-61125-20261010T172917Z.html (iframe -> http://127.0.0.1:61125)
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$ python3 sidecar.py screenshot --port 61125 --out /tmp/preview-sidecar-out --chrome '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome'
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{
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"url": "http://127.0.0.1:61125",
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"host": "127.0.0.1",
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"port": 61125,
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"captured_at": "2026-10-10T17:29:17Z",
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"chrome": "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
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"png": "/tmp/preview-sidecar-out/receipt-61125-20261010T172915Z.png",
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"sha256": "6e13265f215eb1e39245011165192d703d99501ffd9c08499b513b06682fb3d5",
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"bytes": 16208,
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"json": "/tmp/preview-sidecar-out/receipt-61125-20261010T172915Z.json"
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}
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receipt verified: 16208 bytes, sha256=6e13265f215e...
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$ (dev server on 61125 stopped)
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$ python3 -m unittest discover -s ventures/preview-sidecar -p 'test_*.py' -v
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...
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----------------------------------------------------------------------
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Ran 16 tests in 0.003s
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OK
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