Q Answer-format search page
headless Claude effortLevel TypeError debug
✦ AI editor's answer
The bun-built claude.exe dies instantly with an 'effortLevel null' TypeError under print + tool mode. Switching to the node-based claude.cmd runs the same model and same prompt cleanly.
Source: 3 notes from this publication + operator work logs
Source notes (3)
- Tooling2026-05-20
Mixing Claude, Codex and Gemini in one workspace — what 132K events revealed
81,764Claude events (61% of all)› Route 'hard-to-undo' work (design, review) to a stronger reasoning model; route bulk repetitive work to a fast cheap model.
- Tooling2026-05-25
26 hands — but one of them passed 1,333 messages
1,333Messages exchanged by a single deep session› Session count is the weaker signal; messages and tool-calls per session are the real automation depth.
- Tooling2026-05-23
95 hands shared one desk
95Sessions on one workspace, zero conflicts› When multiple agents share one folder, what prevents conflict is not the model — it's a shared work-ledger convention.
Related questions