Failure mode

Logic Error

12 documented incidents where AI agents exhibited logic error.
6.0
Cline's tool-call JSON repair silently executed truncated write_file and terminal arguments as valid
4.0
Aider's headless `--message` mode silently swallows slash commands (`/model`, `/ask`, `/architect`) and exits 0 having done nothing
4.0
Aider exits with code 0 after a fatal API connection failure, masking hard failures as successful headless runs
3.0
Aider's unified-diff coder silently drops the partial-application warning when one hunk succeeds and another fails
3.0
Cline's execute_command reported a failing Ruff lint check as passing over Remote-SSH
3.0
Aider silently discards a model's correct diff response as "no tracked changes" when it guesses the wrong edit format
2.0
Cline's ask_question composer silently drops image and file attachments, keeping only the typed text
2.0
Cline silently installs a truncated post-compaction summary with no warning when the summary generation hits the output budget
2.0
Cline's Claude Code provider silently refuses permission-gated tool calls with no approval prompt
2.0
Devin PR broke ledger list API and created buckets on deleted resources
2.0
The quiet correctness tax: 43% of AI code changes need production debugging, with up to 75% more logic errorsStudy
1.0
OpenAI's Operator scored 38% on real computer tasks — and panics instead of recovering from errorsStudy