code2lora_cli_multitask

Multi-task Code2LoRA-GRU hypernetwork checkpoint used by the c2l-terminal (code2lora pip package). Given a repository's commit history it generates a LoRA adapter for a frozen Qwen2.5-Coder-1.5B base, for two auto-routed tasks:

• assert_rhs (task 0) — test-assertion completion
• qa (task 1) — free-form repository question answering (diff + repository-state)

Training

• Warm-started from the single-task assertion GRU hypernetwork (grown 0→2 tasks via a zero-padded, output-identical initialization).
• Finetuned on 164,173 commit-grounded Q&A pairs (73,829 diff-grounded + 90,344 repository-state) + a 10% assertion-completion rehearsal sample, which prevents catastrophic forgetting of the original task.

Evaluation (held-out test splits, CR / IR)

task	metric	CR	IR
assertion completion	exact match	60.5	66.1
repository QA	QA quality (½·(ROUGE-L+token-F1))	0.229	0.230

Assertion accuracy matches the original single-task checkpoint (60.3 / 64.5) while adding the QA capability at no measurable cost.

Usage

pip install code2lora
C2L_CKPT_REPO=code2lora/code2lora_cli_multitask c2lt