fix(lsp): add poll retry for push-only diagnostics servers #1731
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1 issue found across 4 files
Confidence score: 4/5
- Safe to merge with low risk; the only issue is a low‑severity polling behavior and no other concerns were flagged.
- In
src/tools/lsp/lsp-client.ts, the polling loop treats empty diagnostics as missing, which can force a full timeout even when the server reports a clean file, potentially slowing feedback. - Pay close attention to
src/tools/lsp/lsp-client.ts- polling loop ignores valid empty diagnostics and may wait unnecessarily.
Prompt for AI agents (all issues)
Check if these issues are valid — if so, understand the root cause of each and fix them.
<file name="src/tools/lsp/lsp-client.ts">
<violation number="1" location="src/tools/lsp/lsp-client.ts:114">
P2: Polling loop ignores valid empty diagnostics, forcing full timeout even when server reports a clean file.</violation>
</file>
Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.
…gyu#1522) Closes code-yeongyu#1522 ## Summary - After pull diagnostics fails, poll diagnosticsStore every 200ms for up to 3s - Fixes timing race where push diagnostics arrive after pull fails but before store read - Returns immediately if push arrives during poll window - Falls back to empty after timeout ceiling (same behavior as before, just with retry) - Servers like Godot that only support push diagnostics now work correctly Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
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2 issues found across 2 files
Confidence score: 4/5
- Behavioral impact is limited: the polling loop in
src/tools/lsp/lsp-client.tstreats empty diagnostics as no update, so error-free files may wait an extra 3s before being considered updated. - Test suite slowdown in
src/tools/lsp/client.test.tsis minor and non-blocking, but it does add avoidable wait time each run. - Pay close attention to
src/tools/lsp/lsp-client.tsandsrc/tools/lsp/client.test.ts- polling logic and timer usage can introduce delays.
Prompt for AI agents (all issues)
Check if these issues are valid — if so, understand the root cause of each and fix them.
<file name="src/tools/lsp/lsp-client.ts">
<violation number="1" location="src/tools/lsp/lsp-client.ts:114">
P2: Polling loop ignores valid empty diagnostics updates, forcing a 3s timeout delay for error-free files.</violation>
</file>
<file name="src/tools/lsp/client.test.ts">
<violation number="1" location="src/tools/lsp/client.test.ts:302">
P3: This test will wait for the full diagnostics poll timeout (~3.5s) every run because timers aren’t mocked; it slows the test suite unnecessarily. Consider mocking setTimeout/using fake timers or overriding the timeout to keep the test fast.</violation>
</file>
Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.
… tests Poll loop now checks `items !== undefined` instead of `items && items.length > 0`, so clean files with zero diagnostics are recognized immediately rather than forcing a full 3s timeout. Tests mock setTimeout/Date.now to avoid real timer waits. Addresses review feedback identified by cubic on code-yeongyu#1731.
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Closes #1522
Push-only LSP servers (e.g. Godot) return nothing on pull requests. When pull fails, we just return empty — but push diagnostics often arrive moments later.
Added a poll retry: on pull failure, check the diagnostics store every 200ms for up to 3s. Returns immediately when data arrives, falls back to empty on timeout (same as before).