fix(advanced): warm the code interpreter before its first eval deadline - #1101
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🟢 Approval recommended
The implementation and optional-extra behavior are covered by focused tests, with no blocking issues identified.
Pull request overview
Warms QuickJS WebAssembly modules before code-interpreter evaluations to avoid first-call deadline failures.
Changes:
- Adds cached interpreter warm-up during middleware construction.
- Adds an import-time preload module.
- Adds tests for warm-up, optional dependency handling, and preload behavior.
File summaries
| File | Description |
|---|---|
src/uipath_langchain/agent/advanced/code_interpreter.py |
Implements cached WebAssembly warm-up. |
src/uipath_langchain/agent/advanced/code_interpreter_preload.py |
Runs warm-up during module import. |
src/uipath_langchain/agent/advanced/__init__.py |
Exports the warm-up function. |
tests/agent/advanced/test_code_interpreter.py |
Tests warm-up and preload behavior. |
Review details
- Files reviewed: 4/4 changed files
- Comments generated: 0
- Review effort level: Lite
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quickjs_rs compiles its source transform WebAssembly module lazily, inside the first eval of the process, under the same per-call deadline as user code. On a CPU-starved instance the compile alone outlasts the deadline, so the first advanced run on a fresh process fails at its first model call with "interrupted" and a retry on the same process succeeds. Compile it when the graph is built instead, and expose the warm-up so a host that preloads modules at process start can run it earlier. Claude-Session: https://claude.ai/code/session_013CLJG6q56YoHrgNTgm3pA3
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dianagrecu-uipath
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Sep 21, 2026
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Summary
warm_code_interpreter()so a host that preloads modules at process start can run the compile earlierWhy
quickjs_rs compiles its source transform module lazily inside the first eval, under the same 5 s deadline as user code. On a CPU-starved instance the compile alone exceeds the deadline, so the first advanced run on a fresh process fails at its first model call with
interrupted, and a retry on the same process succeeds.