[trukhinyuri]

What

Accounts that use Kimi Code, Z.AI, or ClinePass without an active subscription plan return a steady-state "no plan" payload on every usage poll, and each poll logged a warning (hundreds of warnings per day per session):

• Kimi Code (packages/ai/src/usage/kimi.ts): an account without a Kimi Code plan answers {}. kimiUsageProvider.fetchUsage now logs that empty object at debug ("Kimi account has no Kimi Code plan to meter") and returns null, while non-empty malformed payloads still log "Kimi usage response invalid" at warn.
• Z.AI (packages/ai/src/usage/zai.ts): a pay-as-you-go account without a GLM Coding Plan answers {code: 500, msg: "当前用户不存在coding plan"}. fetchZaiUsage now logs /不存在\s*coding\s*plan|no\s+coding\s+plan/i at debug and returns null, while expired plans ("您的coding plan已过期") or backend errors still log at warn.
• ClinePass (packages/ai/src/usage/cline-pass.ts): a free/credits-only account that never subscribed to ClinePass answers HTTP 404 "no plan history found for user". fetchClinePassUsage now logs 404 responses matching /no plan history/i at debug and returns null, while other 404 or error responses still log at warn.

Verification

• Base (origin/main 0b5c27ab24 packages/ai/src/usage/{cline-pass,kimi,zai}.ts):
  bun test test/cline-pass-usage.test.ts test/kimi-usage.test.ts test/zai-usage.test.ts -t "treats an account without a" fails all 3 tests (0 pass, 3 fail: ["ClinePass usage fetch failed"], ["Kimi usage response invalid"], ["ZAI usage response invalid"]).
• Candidate (506b3d1e7a in packages/ai):
  bun test test/cline-pass-usage.test.ts test/kimi-usage.test.ts test/zai-usage.test.ts passes (23 pass, 0 fail, 108 expect() calls); bun run check (oxlint, oxfmt, tsgo) exits 0.

[chatgpt-codex-connector]

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Review	Status	Commit	Review trigger
📝 Code Review	⚠️ Failed 2026-10-26T00:05:07.315729Z We couldn’t complete this review. Comment @codex review to try again.	506b3d1	PR opened

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[roboomp]

P0 — scoped fixes for expected plan-less responses; all three provider regression suites pass (23 tests).
Only finding: add the assigned PR link to the external-contributor changelog entry.
Thanks @trukhinyuri for the focused fix.