[cursor]

Summary

No @opencode/codemode version change. Main and npm latest are both exact 2.2.5. This only records the downstream break that still justifies rejecting for...in.

Published artifact https://registry.npmjs.org/@opencode/codemode/-/codemode-2.2.5.tgz (sha512-oqZXynEO71nOpM9kOVacyRY6qOceYdk2p9Q0667kwSP4ZXgKSKtxV2HkI0iUBh3ci+TueO88BxIb2CgL1slpGw==), Effect 4.0.6 (single hoisted copy).

• Inherited enumerable keys match the host: Object.create({ p: 1 }) plus own a yields ["a", "p"].
• Keys deleted during iteration are still visited: own keys ["a", "b", "c"] and prototype keys ["p", "q"]. The same loops on Node omit the deleted keys (["a", "c"] and ["p"]).
• Preflight still rejects ForInStatement before runtime construction or any host effect, including the prototype-deletion source. Admitted syntax was not expanded.

Starting main SHA: ca2e788b418c7843f02cf84046973aaea7d4e589. Test revision: 00c27b15aa404804eb216ba4688866f7a31bd84a.

Verification

npm test on Node v22.23.4, Linux x86_64, without PI_OPENCODE_SDK: 83 tests, 82 passed, 0 failed, 1 skipped (isolated real Pi SDK session). The Pi 0.99.0 / 1.3.0 / 1.4.0 matrix was not rerun. Hosted CI is still pending. This is not a live-model or performance check.

  

---

Note

Low Risk
Only test and assertion changes; no production routing or runtime behavior is modified.

Overview
Test-only update documenting why for...in stays preflight-rejected for @opencode/codemode 2.2.5—no dependency or routing logic changes.

The for-in cases gain a fourth snippet that deletes a key on the prototype while iterating. route.test.js keeps asserting native routing with unsupported-syntax:ForInStatement for all four shapes.

preflight.test.js adds helpers to run the same snippets in the installed CodeMode runtime and on the host, then compares results: inherited keys still match Node, but keys deleted mid-loop are still yielded in CodeMode (["a","b","c"] / ["p","q"]) whereas Node skips them—locking in the behavioral break that justifies continued rejection without widening admitted syntax.

^{Reviewed by Cursor Bugbot for commit 00c27b1. Configure here.}

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[greptile-apps]

Confidence Score: 5/5

[Low impact] This test-only PR appears safe to merge.

Summary

This PR adds tests that record why for...in remains rejected with CodeMode 2.2.5.

• The tests show why for...in stays rejected.

No actionable issues were found. Tests were not run during this review.

_{Reviews (1) · Last reviewed commit: "test: lock CodeMode 2.2.5 for-in deletio..." · Reviewed by Greptile}