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AX-1941: sandbox network-allowlist fallback for full_network gap - #78

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ax-1941-cursor-sandbox-fallback
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AX-1941: sandbox network-allowlist fallback for full_network gap#78
MatanEden1 wants to merge 4 commits into
mainfrom
ax-1941-cursor-sandbox-fallback

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@MatanEden1

@MatanEden1 MatanEden1 commented Aug 27, 2026

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Summary

Cursor's Agents Window (CURSOR_SANDBOX=seatbelt) blocks *.jfrog.io by default. All HTTPS is forced through an ephemeral local proxy; *.jfrog.io returns 403 while public registries (npmjs, pypi, nodejs.org) are already allowed.

Adds a workspace .cursor/sandbox.json to unblock *.jfrog.io. Workspace allowlists are unioned with Cursor's defaults — only the missing host needs to be listed.

Test plan

  • Verify hands-on that .cursor/sandbox.json actually unblocks the Agents Window surface (not yet confirmed)

@MatanEden1
MatanEden1 requested a review from a team as a code owner August 27, 2026 11:49
Cursor's Agents Window (CURSOR_SANDBOX=seatbelt) blocks *.jfrog.io by
default. Add a workspace .cursor/sandbox.json to unblock it. Workspace
allowlists are unioned with Cursor's defaults, so only the missing host
needs to be listed.

Co-authored-by: Cursor <cursoragent@cursor.com>
@MatanEden1
MatanEden1 force-pushed the ax-1941-cursor-sandbox-fallback branch from b7d3c68 to e82c95a Compare August 27, 2026 12:27
MatanEden1 and others added 3 commits August 27, 2026 15:30
Cursor's Agents Window (CURSOR_SANDBOX=seatbelt) blocks *.jfrog.io by
default. Add a workspace .cursor/sandbox.json to unblock it. Workspace
allowlists are unioned with Cursor's defaults, so only the missing host
needs to be listed.

Extend validate-template.mjs to assert sandbox.json exists, has
default=deny, and includes *.jfrog.io.

Co-authored-by: Cursor <cursoragent@cursor.com>
Probes *.jfrog.io hosts through the sandbox proxy the same way the
ticket reporter did. Run from inside the Agents Window to confirm
.cursor/sandbox.json is actually unblocking the hosts.

Co-authored-by: Cursor <cursoragent@cursor.com>
@MatanEden1

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Superseded by #79 — clean history, same changes.

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