feat(harness): pre-fetch models.dev catalog in opencode provisioner - #1283
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ptone wants to merge 4 commits into
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feat(harness): pre-fetch models.dev catalog in opencode provisioner#1283ptone wants to merge 4 commits into
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August 27, 2026 00:17
opencode bakes a models.dev snapshot at build time; when new models are released after the image is built, its validation rejects them. Add a best-effort pre-fetch step that downloads the latest catalog from models.opencode.ai during provision and writes it to the opencode cache location (~/.cache/opencode/models.json). This ensures fresh model data is available when opencode starts, without failing provision if the fetch errors out.
R1: Broaden except clause to catch Exception for best-effort code O1: Add 10MB size cap to resp.read() for defense in depth O2: Use temp file + os.replace for atomic write
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Summary
harnesses/opencode/provision.pythat downloads the latest models catalog fromhttps://models.opencode.ai/api.jsonduring provision~/.cache/opencode/models.json(opencode's primary cache location) so fresh model data is available when opencode startsurllib.requestwith a 10-second timeout; logs success/failure viactx.info()but never fails provision on fetch errorsMotivation
opencode bakes a models.dev snapshot at build time. When new models are released after the image is built, opencode's model validation rejects them. While opencode does a background re-fetch, the v1 Provider system doesn't refresh from it at startup. Pre-fetching the catalog during provision ensures the data is fresh before opencode reads it.
Test plan
python3 -c "import py_compile; py_compile.compile('harnesses/opencode/provision.py', doraise=True)"~/.cache/opencode/models.jsonexists with fresh catalog data